Sewage-infused floodwaters have invaded Chalco
more than 2,000 homes and over 7,000 residents have been affected
with water reaching up to 5 feet in some areas
(AP Video: Julián Trejo Bax and Félix Márquez)
All 5 Releases
32 pets rescued and sheltered by local authorities returned to their owners following the flooding in the municipality of Chalco
“My dog is already 8 years old and has been with me for a long time,” María Alejandra
“I am truly grateful that they [the shelter] gave it back to me
Over the course of the Chalco flooding disaster
the State Commission of Natural Parks and Fauna (Cepanaf) rescued 135 pets with and without owners
The commission provided the animals with food and veterinary care for two weeks with the support of animal welfare groups
rabies vaccine and other first-line vaccines
“This is the first time that a government carries out something like this
that were vulnerable due to the floods,” Cepanaf chief Alma Diana Tapia Maya told El Financiero
“It is a dream come true that these little ones were able to return safe and sound to their home
It is a very enriching experience,” she said
The state government reported that the remaining 66 rescued animals without owners will be given for adoption through Caravans for Animal Welfare
In August, thousands of residents in Chalco lived in dire conditions for over four weeks due to severe sewage flooding triggered by unusual torrential rains. The ongoing disaster led to widespread health concerns
forced evacuations and increasing demands for government intervention
the colossal flooding was caused by a huge garbage plug 50 meters wide by 2.4 meters deep in the Solidaridad Storm Drain
“What we are seeing in Chalco is the result of water and city management that is far from sustainable,” Greenpeace México said in a statement following the floods
“We have been calling [the government] for sustainable management of cities and water for years
and for corporations to be required by law to take responsibility for the plastic pollution they generate,” the statement said
“What have the state and federal governments done?”
the neighborhoods of Jacalones and Culturas de México were once again affected when foul-smelling water gushed out of the drainage system and entered homes
The newspaper La Jornada reported that residents are once again struggling to evacuate it
“This is our reality now,” Ricardo Carreño Marroquín
We are physically and emotionally exhausted” he stressed
ADVERTISE WITH MND
COMMUNITY GUIDELINES
Subscription FAQ's
Privacy Policy
Mexico News Daily - Property of Tavana LLC
Share on FacebookShare on X (formerly Twitter)Share on PinterestShare on LinkedInCHALCO
(WOWT) - A Westside High School teacher and her husband are dead after a domestic violence incident ended in a shootout at a home on the southwest edge of the Omaha-metro
Sarpy County Sheriff Jeff Davis said in an update Monday that deputies found Rebecca Geiger
dead in her Chalco Hills-area home after shots were exchanged near South 143rd Street and Meadows Parkway at about 3 a.m
Authorities said Geiger’s 19-year-old daughter had called 911 telling operators her father
had shot her mother — and that he had a gun pointed at her
Rory Geiger then turned his attention to the deputies
though Davis said it was a person inside the home who fired the first shot
“There was gunfire initiated by a subject from inside the house — out the plate glass window
One of our officers returned fire," the sheriff said
Deputies then went into the home and found Rory Geiger deceased
Life-saving measures were performed on the victim
The couples' two daughters were in the house when the shooting started
Officials said the girls could have been in serious trouble
6 News was first on the scene Monday morning
Authorities said they had been to the house about a month earlier for an incident
“There was an alert on the house because of a response they received at the time,” Davis said
that individual told hs ‘be careful; you shouldn‘t come back here.’”
Five deputies involved in the shooting have been placed on administrative leave
Investigators are looking at bodycams worn by the deputies
as well as cameras inside and outside the home
They‘re not yet sure whether Rory Geiger’s fatal wounds were self-inflicted or from a shot fired by a Sarpy County deputy
regardless of whether he took his own life or whether he was shot by one of our people
most definitely them responding and entering saved probably the lives of both those girls.”
Davis said deputies found several guns in the house
Geiger was a special education teacher who had just started her 10th year at Westside High School
“She was just a very kind teacher,” said Elizabeth Power with Westdside Community Schools
“She was so good at helping her students feel very seen and very loved and very much like they belonged here at Westside High School
which is such an important thing for any student
The district has set up its crisis response team
Counselors will be available all week long
Get the latest breaking news delivered to your inbox. Sign up for 6 News email alerts.
China's aluminum industry originated in the north-east China in the 1950s
After more than 70 years of relentless efforts and struggles by several generations
it now stands proudly at the forefront of the world in many fields such as capacity
To pay tribute to the predecessors and industry leaders who have made outstanding contributions to the development of China's aluminum industry
(SMM) joined hands with China Technology Innovation Strategic Alliance for Resources Recycling Industry (CIAR)
and Guangdong (Nanhai) Aluminum Processing Industry Alliance to organize a specially established nomination award
"Wings of Soaring・Backbone of a Great Nation - 2025 SMM Chalco Meritorious Figures"
The selection is divided into four awards:
Lifetime Achievement Award: For industry association personnel aged 60 and above who have made outstanding contributions to the industry
They are the bridgeheads connecting the government and enterprises
Mount Tai Award: For entrepreneurs and industry experts aged 60 and above who have made outstanding contributions to the industry; they represent the glorious history of industry development
Cornerstone Award: For entrepreneurs and industry experts aged 40-60 who have made outstanding contributions to the industry; they are the mainstay of the industry now
Rising Star Award: For entrepreneurs or industry experts under the age of 40 who have made outstanding contributions to the industry; they represent the future of the industry
Wings of Soaring・Backbone of a Great Nation 2025 SMM Chalco Meritorious Figures Rising Star Award
Shanghai Giant Alloy Materials Recycling Co.
Yongda Yuan presented the awards to the winners~
Wings of Soaring・Backbone of a Great Nation 2025 SMM Chalco Meritorious Figures Cornerstone Award
Shang Magnesium Network/Shangqing Times Metal Information Consulting (Beijing) Co.
Shangen Zhang presented the awards to the winners~
Wings of Soaring・Backbone of a Great Nation 2025 SMM Chalco Meritorious Figures Mount Tai Award
Jiangxi Baotai Nonferrous Metals Group Co.
Zitao Wang presented the awards to the winners~
Wings of Soaring・Backbone of a Great Nation 2025 SMM Chalco Meritorious Figures Lifetime Achievement Award
Lw Aluminum Processing Technology Center Zitao Wang
Shanghai Aluminum Industry Association Yongda Yuan
China Nonferrous Metals Industry Association
Shandong Aluminum Industry Association Wenjun Xian
China Technology Innovation Strategic Alliance for Resources Recycling Industry (CIAR) Shilong Li
Suzhou Die Casting Association Shangen Zhang
Guangdong (Nanhai) Aluminum Processing Industry Alliance Jiyan Lu
SMM CEO Logan Lu presented the awards to the winners~
SMM congratulates the above winners and looks forward to more industry colleagues participating to jointly promote the healthy development of the industry
Click to view the special report on AICE 2025 SMM (20th) Aluminum Industry Conference and Aluminum Industry Expo
For queries, please contact Lemon Zhao at lemonzhao@smm.cn
For more information on how to access our research reports, please email service.en@smm.cn
Monday - Friday 9am-12pm / 2pm-6pm GMT + 1
All financial news and data tailored to specific country editions
thousands of residents in Chalco — a city of 174,700 in the state of México — have been living in dire conditions due to severe sewage flooding triggered by atypical torrential rains
The ongoing disaster has led to widespread health concerns
Mexican Red Cross teams traversing the flooded streets by boat rescued 64 residents from the worst-affected areas — bringing the total number of rescued citizens to over 1,100 so far
Most of the evacuees were taken to one of four temporary shelters
food and other essential services awaited them
Wednesday’s operation also included rescuing pets
some of whom had been left without food or water for days
many of the estimated 3,600 affected residents have refused to leave their homes for fear of looting
Some of those people are receiving assistance from residents from non-flooded areas who have taken it upon themselves to prepare and distribute hot meals by boat to those trapped in their homes
“There were 16 children in one building who were so relieved when we brought them food,” one local volunteer
She also said that community solidarity has provided some comfort in the midst of what might escalate into a full-blown public health crisis
A two-minute news report on the Chalco flooding is available on CNN en Español
As the situation has grown increasingly desperate
México Governor Delfina Gómez Álvarez has been confronted by people irate over a perceived lack of action by state and federal authorities
has urgently called for a state of emergency to be declared
“There is already a risk of diseases due to stagnant sewage
and the situation is only worsening,” Gutiérrez said in a radio interview with journalist Joaquín López-Dóriga
noting that the water level has dropped at times
but then “it rains on us and raises the water level again.”
he stressed the need to replace a 30-year-old sewage system that has a garbage trap
The most affected neighborhoods are Culturas de México
All abut the center of the city also known by its formal name of Chalco de Díaz Covarrubias
which is about an hour’s drive from Xochimilco in southern Mexico City
Angry residents this week loudly slammed the doors of a building where Governor Gómez was meeting with authorities about the flooding in Chalco
Other residents blocked a portion of the Mexico-Cuautla highway on Tuesday
And according to the newspaper El Financiero — quoting what residents have told reporters and written on social media — the military members and state police sent to the area to help “are not doing anything.”
“The state police are only on their phones and eating,” El Financiero quoted people as saying
the state and municipal police come to eat.”
Mexico’s National Water Commission (Conagua) issued a press release on Thursday noting that it has “deployed specialized personnel and equipment to help eliminate the three blockages [of the drainage system] caused by the accumulation of garbage.”
It’s a job that “exceeded the capacity of municipal and state teams,” the release added
Conagua also said that it and other agencies are dredging some areas
pumping water from affected areas and reinforcing eroding river banks
A 74-year-old grandmother identified by authorities as Carlota “N” has become the center of national controversy after a violent property dispute this week ended with two deaths and one injury in México state
Dubbed “abuelita sicaria” (the killer granny) and “abuelita justiciera” (the vigilante granny) on social media
Carlota’s actions have sparked polarized reactions across Mexico and a bucketload of memes — ranging from praise to condemnation
Ella es Carlota “N”, la abuelita de Chalco, que le disparo a dos hombres que presuntamente invadieron su casa. pic.twitter.com/hzzWV45vgY
— El Universal (@El_Universal_Mx) April 4, 2025
occurred Tuesday in the Ex Hacienda de Guadalupe housing complex in the town of La Candelaria Tlapala
about 45 kilometers southeast of Mexico City in the municipality of Chalco
an armed Carlota arrived at the disputed property
accompanied by Eduardo “N” and Mariana “N.”
she opened fire and killed a 19-year-old man on the spot and injured two others — a 51-year-old man who later died in the hospital and a teenager who needed medical attention — according to the Attorney General’s Office of the State of Mexico (FGJEM)
Carlota and her companions were arrested on Wednesday
reportedly charged with double homicide — and also bribery after allegedly attempting to pay off the arresting officers
According to initial investigations, Carlota claimed ownership of the property and accused those living there of being squatters, known in Mexico as paracaidistas.
In a country where disputes over land ownership are commonplace due to weak enforcement mechanisms, tenants’ rights laws in Mexico make it very hard for property owners to push squatters off their property — as noted in a Mexico News Daily article about the rigors of renting in Mexico.
Frustrated by what she perceived as inaction from authorities
Carlota reportedly took matters into her own hands
The victims’ family stated they were tenants with a rental agreement provided by a third party
though they admitted uncertainty about whether that person was himself a squatter
images of one victim posing with firearms have fueled speculation about potential criminal ties among those attacked
no definitive evidence has linked them to organized crime
Carlota’s arrest has triggered widespread debate online. Memes, caricatures and even a corrido — a traditional Mexican ballad — have been created to immortalize her actions
— Carlos Jiménez (@c4jimenez) April 3, 2025
The corrido portrays her as a figure of justice reclaiming her home: “An angry granny went to get rid of the thugs. They invaded her house. The granny wanted justice.” (See the full lyrics here.)
While some hailed Carlota as a hero who took matters into her own hands in response to systemic failures
others criticized her as a cold-blooded murderer
arguing that violence cannot be justified under any circumstances
her story has raised questions about justice
property rights and the limits of self-defense
One dissenting voice on social media stated
“Those who romanticize the old murderer… [she] is neither a vengeful grandmother nor a righteous grandmother; [she] is a hit woman.”
“A new Mexican superhero… none other than the avenging granny.”
Carlota’s legal status remains unresolved; as of Friday morning
she and her accomplices were being held in detention
but authorities reportedly had until the end of the day to transfer them to state prison for an initial hearing
During her morning press conference Friday, President Claudia Sheinbaum confirmed investigations into Carlota and the incident
“We need to review it carefully,” she said
“We’ll await all the information from the state prosecutor’s office and then give our opinion.”
The incident brought to mind the case of Juana Barraza Samperio, a former professional wrestler who was dubbed “La Mataviejitas” (The Little Old Lady Killer) after she was arrested in 2006 for the killing of 17 women — “although she likely killed many more,” wrote Mexico News Daily.
Metrics details
(Top left) Map of Mexico showing the Trans-Mexican Volcanic Belt (TMVB, red area) and the location of Lake Chalco (black square), southeast of Mexico City, and (Top right) the drill site (white square). Images illustrate the field laboratory and drill operations. The map was created with ArcGIS Desktop 10.6.1 (URL: http://www.esri.com) and CorelDRAW 2020 version 22.0
Schematic representation of the field methods
and bioinformatic analyses associated with the retrieved Holocene sediment sequence from Lake Chalco
Numbers 1 to 5 represent methodological phases and numbers 5.1 to 5.6 represent bioinformatics and statistical analyses run on the generated data
“x” represents taxonomy determined to genus level and “*” represents protein families (pfams) from identified genes
DNA—Deoxyribonucleic Acid; HiSeq—High-throughput Sequencing Illumina; Log2 Fold Change—based on DeSeq analysis of R packages; Nextera—sequencing on Illumina; MG RAST—Metagenomics open service analysis
The lithology of the 270-cm sediment sequence is shown in the first column
The Upper Toluca Pumice (UTP) is represented as tephra underneath the first column (from left to right)
Taxonomic diversity is depicted as the relative abundance of phyla Bacteria (green)
Percent values correspond to the diversity of peptide sequences corresponding to each domain
Geochemical variables related to biological processes and past conditions are shown in columns 5–7
Results of fossil diatom analysis are shown in column 8
Dark horizontal lines show the boundaries for each delimited paleoenvironmental zone: (1) freshwater
Analysis of coding gene fragments revealed 27,636,243 non-clustered predicted proteins in the 12 sediment core samples analyzed
of which 3,227,398 could be annotated against the National Center for Biotechnology Information (NCBI) non-redundant (NR) protein database
The high number of predicted proteins in our study is an indication of the enormous metabolic diversity within Lake Chalco sediments
This suggests that Chalco’s metagenomes have great potential for exploring biotic processes in detail
and that the lake deposits may possess biotechnology potential
for investigating oil recovery or biodegradation of pollutants and toxic compounds
(A) Functional classification of the predicted proteins of the Lake Chalco sediment metagenomes
Samples are ordered from shallowest to deepest samples
Heatmap distribution of the enzymes (or subunits of the enzymes) of: (I) hydrogenotrophic methanogenesis (FmdA-MtrH)
(II) shared key enzymes for all variants of methanogenesis (McrA-McrG)
(III) acetoclastic methanogenesis (Ack-CdhB)
(IV) methylotrophic methanogenesis (MtaA-MttB)
(VIII) nitrification (AmoA) and (IX) denitrification NarG-NosZ)
The numbers on the sidebar represent the abundance
This variety of metabolic functions is a strong indicator of environmental change throughout the sediment sequence
Microbial profiling was described against sediment depth because we did not conduct analysis to differentiate between living and dead cells
and we are aware that using the prokaryotic assemblage as a stratigraphic indicator is challenging and beyond the scope of this contribution
suggest a strong relationship with the three paleoenvironmental zones
Climate and limnological inferences for the three Holocene zones in the Lake Chalco sediment core: (1) cool
The horizontal bar represents the time range of each zone
determined during this study and by previous studies cited in the text
The right bar shows the microbiota and enzyme pathways found in each paleoenvironmental zone
freshwater lake) suggest high lacustrine productivity
The most abundant Eukarya families (algae) are associated with freshwater conditions
hyposaline lake) suggest periods of intense evaporation and high productivity
Highest TOC values suggest eutrophic conditions
Mn/Fe values in zones 1 and 2 suggest periods of anoxic bottom waters in the lake
subsaline) is characterized by a slight increase in lake depth and a decrease in salinity
Geochemical variables Ti and Ti/Fe suggest greater rainfall and runoff
High diversity of fungal pathogens of crops
and highest abundance of Poaceae (grasses)
we suggest that our microbial composition also reflects aspects of burial and early diagenesis
The sample from a depth of 60 cm displays a stronger association with the subsaline zone than to the hyposaline
and the sample from 185 cm shows greater affinity with the freshwater zone than with the hyposaline zone
Both samples may reflect transitional periods
A total of 527 unique pfams are found in this zone
plasmids and transposable elements” subsystems
and nitrogen metabolism genes related with anoxic and extreme environmental conditions
Metagenomics is a powerful complement to traditional paleolimnological approaches and contributes to better understanding the historical ecology of aquatic and terrestrial ecosystems
and biotic processes in the Neotropical-Nearctic transition zone
Microbes found in the subsurface biosphere represent descendents of surface communities that were buried in the past
Metagenomics proved suitable to describe Holocene biological diversity
and trophic state and human activities) in and around high-altitude
Challenges involved with using this novel metagenomic approach for study of lacustrine ecosystems include acquisition of good-quality DNA from sed(a)DNA
and taxonomic gaps in available genomic databases
especially from high-diversity aquatic ecosystems in the tropics
Fungi was one of the most sensitive bioindicators of past vegetation
Our study illustrates how new genomics techniques can shed light on the history of biota in and around aquatic ecosystems
especially in the poorly studied Neotropics
We present the workflow schematically (Fig. 2)
The two topmost samples are considered modern
samples were frozen in the field and stored in liquid nitrogen at − 80 °C
A second 250-cm-long sediment sequence was collected from the same lake location for geochemical and diatom analysis
Sediment stratigraphy was identical in both cores
which dates to 12,500 cal years BP
halophilous (hyposaline) or alkaliphilus (subsaline)
The same environmental succession reported by Caballero and Ortega (1998)
The base of the core dates to about 12,500 cal years BP
as indicated by the presence of the UTP (Upper Toluca Pumice)
and sediments overlying this stratigraphic marker are rich in freshwater taxa that characterized the cooler deglacial at the end of the Pleistocene
Ti is associated with allochthonous material
To remove the influence of allochthonous material on changing stratigraphic concentrations of phosphorus
Fe/Ti and TOC were measured and used for comparison with our metagenomic results
Principal Components Analysis (PCA) was used to identify co-variables (data and plots not shown) and we selected the three most informative variables in the sediments related to proxies for productivity (TOC)
redox condition (Mn/Fe) and erosion/transport (Ti/Fe)
DNA was isolated from the 12 Holocene sediment samples taken from the Lake Chalco core. Each sample was sequenced using two NGS methods (Supplementary Fig. S2)
To obtain the amount of DNA required for sequencing
each sediment sample was processed in quadruplicate
with the exception of the four deepest sediment samples that were sampled twelve folds
we included a negative control (mock) and amplification directed at the 16S rRNA gene to ensure reliable controls
The metagenomic DNA was isolated using the Powersoil DNA Isolation Kit (Mo Bio Laboratories
DNA purity and quantity were estimated using a NanoDrop spectrophotometer
DNA integrity was checked in 0.8% agarose gels
a PCR reaction for the 16S rRNA gene (v3-v4) was conducted
The positive alignments were selected using BLAST (e-value 1e−10; 90% identity; minimum alignment length of 15 bp; choosing the best hit)
we also searched the enzymes of the biosynthetic pathways of the main coenzymes involved in biological methane production and the enzymes present in the Wood-Ljungdahl pathway (homoacetogenesis)
Cutoff values used in the searches were an identity value > 35%
query coverage of 85% and an e-value < 1 × 10−6
Sequences that passed the cutoff were aligned with MUSCLE v3.9.31
Results were analyzed and visualized with R v.3.6.3
Sequences from this project are available in the Bioproject accession PRJNA522291
SRA NCBI access: Metagenome: 200_4 (Access number: SRX5450430);200_3 (Access number: SRX5450429);200_2 (Access number: SRX5450428);200_1 (Access number: SRX5450427);100_4 (Access number: SRX5450426);100_3 (Access number: SRX5450425);100_2 (Access number: SRX5450424);100_1 (Access number: SRX5450423);50_2 (Access number: SRX5450422);50_1 (Access number: SRX5450421);S_2 (Access number: SRX5450420);S_1 (Access number: SRX5450419)
Effects of regional subsidence and earthquakes on architectural monuments in Mexico City
Boletín de la Sociedad Geológica Mexicana 65
Climate change in lowland Central America during the late deglacial and early Holocene
Vegetation assemblages of central Mexico through the late Quaternary: Modern analogs and compositional turnover
Holocene environmental history of tropical
inferred from ostracodes and non-biological indicators
Pérez, L. et al. Ecological turnover in neotropical freshwater and terrestrial communities during episodes of abrupt climate change. Quat. Res. https://doi.org/10.1017/qua.2020.124 (2020)
Late Quaternary (24–10 ka BP) environmental history of the Neotropical lowlands inferred from ostracodes in sediments of Lago Petén Itzá
Quantitative estimates of orbital and millennial scale climatic variability in central Mexico during the last ∼40,000 years
Metagenomics: Application of genomics to uncultured microorganisms
Pedersen, M. W. et al. A comparative study of ancient environmental DNA to pollen and macrofossils from lake sediments reveals taxonomic overlap and additional plant taxa. Quat. Sci. Rev. https://doi.org/10.1016/j.quascirev.2013.06.006 (2013)
Ancient DNA analysis identifies marine mollusc shells as new metagenomic archives of the past
Archaeal community changes in Lateglacial lake sediments: Evidence from ancient DNA
Paleontology: Genomic sequencing of pleistocene cave bears
Metagenomic analyses of the late Pleistocene permafrost—Additional tools for reconstruction of environmental conditions
and archaeal community composition in the sediment of two clear-water lakes of Amazonia
Evolution of the methane cycle in Ace Lake (Antarctica) during the Holocene: Response of methanogens and methanotrophs to environmental change
Understanding the mechanisms behind the response to environmental perturbation in microbial mats: A metagenomic-network based approach
Microbial diversity in a hypersaline sulfate lake: A terrestrial analog of ancient mars
Environmental DNA—An emerging tool in conservation for monitoring past and present biodiversity
Lake sedimentary DNA research on past terrestrial and aquatic biodiversity: Overview and recommendations
SIP metagenomics identifies uncultivated Methylophilaceae as dimethylsulphide degrading bacteria in soil and lake sediment
Neoglacial climate anomalies and the Harappan metamorphosis
A metagenomic insight into freshwater methane-utilizing communities and evidence for cooperation between the Methylococcaceae and the Methylophilaceae
Shotgun metagenomics reveals a wide array of antibiotic resistance genes and mobile elements in a polluted lake in India
The maturing relationship between Quaternary paleoecology and ancient sedimentary DNA
Basin of Mexico: Late Pleistocene-Early Holocene stratigraphy and the geological context of the bone accumulation
Association of artifacts with mammoth in the Valley of Mexico
Early sedentary economy in the basin of Mexico
Biogeographical regionalisation of the neotropical region
Perforación profunda en el lago de Chalco: Reporte técnico
Boletin de la Sociedad Geologica Mexicana 69
Climatic variability in the northern sector of the American tropics since the latest MIS 3
Lake levels since about 40 000 years ago at Lake Chalco
Late pleistocene and holocene paleoenvironments of Chalco Lake
Lithostratigraphy and physical properties of lacustrine sediments of the last ca
History of the depositional evolution of Lake Chalco
from the MIS 3 | Historia de la evolución deposicional del lago de Chalco
Boletin de la Sociedad Geologica Mexicana 67
Tepexpan revisited: A multiple proxy of local environmental changes in relation to human occupation from a paleolake shore section in Central Mexico
Geochemical characterization of late Pleistocene and Holocene tephra layers from the Basin of Mexico
Millennial-scale temperature change velocity in the continental northern Neotropics
Diatom-based transfer functions during the late MIS6—Early MIS3 in Lake Chalco
Incendios y actividad volcánica: historia de fuego en la cuenca de México en el Pleistoceno tardío con base en registros de material carbonizado en el lago de Chalco
Revista Mexicana de Ciencias Geologicas 36
Geochemical characterization of components of the groundwater flow system in the basin of Mexico
Magnetic properties of lake sediments from Lake Chalco
and their palaeoenvironmental implications
Identification of the components of a complex groundwater flow system subjected to intensive exploitation
Total organic carbon and total nitrogen in sediments and soils: A comparison of the wet oxidation–titration method with the combustion-infrared method
Tracing lake mixing and oxygenation regime using the Fe/Mn ratio in varved sediments: 2000 year-long record of human-induced changes from Lake Żabińskie (NE Poland)
Variations of sedimentary Fe and Mn fractions under changing lake mixing regimes
oxygenation and land surface processes during Late-glacial and Holocene times
Sedimentary metal ratios in the Colombia Basin as indicators for water balance change in northern South America during the past 400,000 years: Water balance change in South America
Battarbee, R. W. et al. European Diatom Database (EDDI). An information system for palaeoenvironmental reconstruction. http://craticula.ncl.ac.uk:8080/Eddi/jsp/index.jsp (2001)
Salter, S. J. et al. Reagent contamination can critically impact sequence-based microbiome analyses. Cold Spring Harb. Lab. https://doi.org/10.1101/007187 (2014)
Simple statistical identification and removal of contaminant sequences in marker-gene and metagenomics data
Atribacteria reproducing over millions of years in the Atlantic abyssal subseafloor
Characterization of sediment bacterial communities in plain lakes with different trophic statuses
Hydrogen utilization potential in subsurface sediments
Single cell genomic study of Dehalococcoidetes species from deep-sea sediments of the Peruvian Margin
Recording of climate and diagenesis through sedimentary DNA and fossil pigments at Laguna Potrok Aike
Microbial community composition along a 50 000-year lacustrine sediment sequence
provides a link to reductive dehalogenation in terrestrial dehalococcoidetes
Cyanobacterial dynamics in shallow Lake Apopka (Florida
U.S.A.) before and after the shift from a macrophyte-dominated to a phytoplankton-dominated state
Boyle, J. F. Inorganic geochemical methods in palaeolimnology. In Tracking Environmental Change Using Lake Sediments. Developments in Paleoenvironmental Research. 2, 83–141 https://doi.org/10.1007/0-306-47670-3_5 (2002)
Weak influence of paleoenvironmental conditions on the subsurface biosphere of lake Ohrid over the last 515 ka
Orsi, W. D. MetaProt: an integrated database of predicted proteins for improved annotation of metaomic datasets. Open Data LMU. https://doi.org/10.5282/ubm/data.183 (2020)
McGill, W. B. The physiology and biochemistry of soil organisms. In Soil Microbiology, Ecology and Biochemistry, 3rd ed (ed. Paul, E. A.) 231–256 (Academic Press, 2007). https://doi.org/10.1016/B978-0-08-047514-1.50013-5
a novel derivative of 7-deazaguanosine specific to archaeal tRNA
proceeds via a pathway involving base replacement on the tRNA polynucleotide chain
Antibiotic resistance is ancient: Implications for drug discovery
The Thaumarchaeota: An emerging view of their phylogeny and ecophysiology
Diversity and niche of archaea in bioremediation
Microbial community assembly and evolution in subseafloor sediment
Climate oscillations reflected within the microbiome of Arabian Sea sediments
Organic geochemical proxies of paleoceanographic
Pyrenomonadaceae) bloom in the redox zone of the basins separating from the White Sea
The accumulation and degradation dynamics of cyanophycin in cyanobacteria grown in symbiotic associations with plant tissues and cells
Application and comparison of large-scale solution-based DNA capture-enrichment methods on ancient DNA
Condiciones ambientales a finales del Estadio Isotópico 6 (EI 6: > 130000 años) en el centro de México: caracterización de una sección de sedimentos laminados proveniente del Lago de Chalco
Revista Mexicana de Ciencias Geológicas 35
Potentially harmful elements contamination in water and sediment: Evaluation for risk assessment and provenance in the northern Sulaiman fold belt
Organellar Genomes from a ∼5,000-year-old archaeological maize sample are closely related to NB genotype
Seasonality of trichomycetes in larval black flies from South Carolina
Organic matter mineralization in modern and ancient ferruginous sediments
Geochemical identification of potential DNA-hotspots and DNA-infrared fingerprints in lake sediments
Classification of lacustrine sediments based on sedimentary components
Kritische Ergänzungen zu Navicula (Lineolatae) und Gomphonema
Keegan, K. P., Glass, E. M. & Meyer, F. MG-RAST, a metagenomics service for analysis of microbial community structure and function. In Methods in Molecular Biology. 1399, 325–331. https://doi.org/10.1007/978-1-4939-3369-3_13 (2016)
SILVA: A comprehensive online resource for quality checked and aligned ribosomal RNA sequence data compatible with ARB
Uniting the classification of cultured and uncultured bacteria and archaea using 16S rRNA gene sequences
Toxicity of potassium chloride compared to sodium chloride for zebra mussel decontamination
Benjamin Callahan, N. D. Introduction to decontam. https://benjjneb.github.io/decontam/vignettes/decontam_intro.html (2018)
SEED servers: High-performance access to the SEED genomes
Wilke, A. et al. The M5nr: A novel non-redundant database containing protein sequences and annotations from multiple sources and associated tools. BMC Bioinform. https://doi.org/10.1186/1471-2105-13-141 (2012)
HMMER web server: interactive sequence similarity searching
Methanogenesis on early stages of life: Ancient but not primordial
Fast and sensitive protein alignment using DIAMOND
Toward understanding the origin and evolution of cellular organisms
Anaerobic metabolism of Foraminifera thriving below the seafloor
Neuwirth, E. ColorBrewer Palettes. Package RColorBrewer 1.1-2, 1–5. https://cran.r-project.org/web/packages/RColorBrewer/RColorBrewer.pdf (2014)
Phyloseq: An R package for reproducible interactive analysis and graphics of microbiome census data
limma powers differential expression analyses for RNA-sequencing and microarray studies
Past: Paleontological statistics software package for education and data analysis
Differential Analysis of Count Data—The DESeq2 Package
Download references
This work was supported in part by grants from the CONACYT Fronteras Fund (project 137-2015)
the Governor’s University Research Initiative Program (05-2018) from the State of Texas
and the Howard Hughes Medical Institute (grant 55005946) to LHE
and by SEP-Conacyt Ciencia Básica 237387 to LDA
Bárbara Moguel & Socorro Lozano-García
Laboratorio Internacional de Genoma Humano (LIIGH)
Alcaraz, Jazmín Blaz, Israel Muñoz-Velasco & Arturo Becerra
Margarita Caballero & Beatriz Ortega-Guerrero
Laboratorio Nacional de Genómica para la Biodiversidad (LANGEBIO)
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)
Km 9.6 Libramiento Norte Carretera Irapuato-León
Institute of Functional Genomics for Abiotic Stress
performed DNA extraction and amplification
did computations and ran statistical analyses
wrote the revised version with input from all authors
All authors discussed the results and contributed to the final manuscript
The authors declare no competing interests
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations
Download citation
DOI: https://doi.org/10.1038/s41598-021-92981-8
Anyone you share the following link with will be able to read this content:
Sorry, a shareable link is not currently available for this article.
Sign up for the Nature Briefing: Anthropocene newsletter — what matters in anthropocene research, free to your inbox weekly.
Please enable JS and disable any ad blocker
Connecting decision makers to a dynamic network of information, people and ideas, Bloomberg quickly and accurately delivers business and financial information, news and insight around the world
highlighting its growing dependence on a single country for the raw material
The West African nation last year provided 70% of China’s imports of bauxite
the Sarpy County Sheriff's Office released the identity of the man who drowned Wednesday evening at Wehrspann Lake in the Chalco Hills Recreation Area
Tori Boldt identified the man as Zachariah Lade of Gretna
Witnesses said that they had observed Lade's canoe capsize and Lade did not resurface after becoming submerged in the water
He was pulled out of the lake by emergency personnel and then transported to Lakeside Hospital by the Omaha Fire Department where he was pronounced dead
A 27-year-old man died after drowning at Wehrspann Lake in Chalco Hills Recreation Area on Wednesday
Two witnesses made the call to authorities after seeing the man in a capsized canoe go under the water
Papillion Fire/Rescue and the Sarpy County Sheriff’s Office Search/Rescue Team responded to the Chalco Hills Recreation Area for an individual in distress on the lake
The SCSO said: "Witnesses advised they heard a male party call out for help toward the north end of Wehrspann Lake
and deputies allowed for the 27-year-old male victim
"The victim was transported to Lakeside hospital by the Omaha Fire Department where he was pronounced deceased
The identity of the victim will be released at a later time pending notification to family members."
He was the second person requiring a water rescue on Wednesday
first responders executed a water rescue for a man whose boat had capsized at Wehrspann Lake
Authorities say the man likely survived due to the life jacket he was wearing
Chalco Hills Recreation Area is located in southwest Omaha
with the 245-acre Wehrspann Lake serving as the main feature for outdoor activity
Download our apps today for all of our latest coverage.
Get the latest news and weather delivered straight to your inbox
Please read our republishing guidelines to get started
said that in China environmental impact assessments are carried out for appearance’s sake only
or simply not carried out and small fines incurred as a result
But overseas any problem with the assessment can result in the project being halted and the company incurring huge losses
so Chalco spent heavily rather than take any chances
Wang believes such as Chalco that do well overseas should import their practices back to China
“But so far there are no successful examples of that happening.” Wang added that with China’s enforcement of environmental rules strengthening
companies should also use China’s latest standards in nations with poor environmental laws
And environmental laws in developing nations are getting tougher – if firms work to higher standards initially they won’t be left behind when the law catches up
Select from our bespoke newsletters for news best suited to you
We’ve sent you an email with a confirmation link
我们向您的邮箱发送了一封确认邮件,请点击邮件中的确认链接。如果您未收到该邮件,请查看垃圾邮件。
If you would like more information about the terms of our republication policy or permission to use content, please write to us: [email protected]
We use cookies to ensure that we give you the best experience on our website. By continuing to use our site, you are agreeing to our use of cookies. Read our privacy and cookies policy for further information
Dialogue Earth uses cookies to provide you with the best user experience possible
Cookie information is stored in your browser
It allows us to recognise you when you return to Dialogue Earth and helps us to understand which sections of the website you find useful
Required Cookies should be enabled at all times so that we can save your preferences for cookie settings
Dialogue Earth - Dialogue Earth is an independent organisation dedicated to promoting a common understanding of the world's urgent environmental challenges. Read our privacy policy
Cloudflare - Cloudflare is a service used for the purposes of increasing the security and performance of web sites and services. Read Cloudflare's privacy policy and terms of service
Dialogue Earth uses several functional cookies to collect anonymous information such as the number of site visitors and the most popular pages
Keeping these cookies enabled helps us to improve our website
Google Analytics - The Google Analytics cookies are used to gather anonymous information about how you use our websites. We use this information to improve our sites and report on the reach of our content. Read Google's privacy policy and terms of service
This website uses the following additional cookies:
execute and analyze marketing programs with greater ease and efficiency
while enabling publishers to maximize their returns from online advertising
Note that you may see cookies placed by Google for advertising
under the Google.com or DoubleClick.net domains
Twitter - Twitter is a real-time information network that connects you to the latest stories
opinions and news about what you find interesting
Simply find the accounts you find compelling and follow the conversations
Linkedin - LinkedIn is a business- and employment-oriented social networking service that operates via websites and mobile apps
NE — A young boy’s memory is being kept alive by a very special gift to the community
The grand opening of Dom’s Park was held Saturday
Dozens of people and kids were out to celebrate the occasion at Chalco Hills Recreation Area
“The fact that this exists still is something beyond words for us
the reality is we set out on a pipe dream to build something in memory of Dominik and it just
we’d be lying if there wasn’t a seed of doubt saying how are we going to get this done and our community backed us up,” says Ryan Walters
Dominik (Dom) Walters died in August 2018 after he suffered a cardiac arrest while doing cannonballs off a dock with his dad
Dom’s family wanted to create something to keep his memory alive
The family created the Dominik Walters Memorial Fund and through donations were able to cover some costs of the playground
Additional funding for the playground came through grants from the Papio-Missouri River Natural Resource District and playground company
The playground features a host of Dom’s favorite things
“Everything from bongo drums to xylophones to a glockenspiel to
there’s a rocket ship in the structure in the middle to race cars and a giant slide and a bouncy bridge that he loved so much
All sort of things that Dom loved when he went to other playgrounds,” says Tiffany Walters
The Walters say they chose to put the playground at Chalco Hills Recreation Area because they brought Dom there a lot and say the area really means a lot to the whole family
Dom’s parents say he was a fun-loving and active kid
“He really helped us slow down and remember what’s important
He liked sunsets and rainbows and butterflies
we think about slowing down and taking things in.”
They also say they couldn’t have thought of a better way to keep Dom’s memory alive
most proud of this is seeing all the other kids enjoying it that are here and this place has been crazy busy since
Dom’s park is located in the northwest corner of Chalco Hills Recreation Area near Picnic Area A
Global law firm DLA Piper has advised Chalco Iron Ore Holdings (CIOH) on its investment in the Simandou iron ore deposit in Guinea
DLA Piper was appointed in July 2023 and has provided legal advice on multiple aspects of the project
The firm says the Simandou mine is touted as the largest and richest undeveloped high-grade iron ore deposit in the world
it is a significant transaction that will help to decarbonise the steel industry
as well as make a significant contribution to Guinea’s economic development by bringing high quality iron ore revenue to Guinea
High-grade iron ore assists in the decarbonisation of steelmaking by enabling more efficient and cleaner production processes
Rio Tinto (ASX:RIO) has now received all the necessary regulatory approvals to begin development of the Simandou iron ore deposit in Guinea, as reported by Mining.com.au
The receipt of necessary Guinean and Chinese regulatory approvals
and the recent approval from the Simfer board
clears the way for its US$6.2 billion ($9.2 billion) investment in the development.
Simfer is a joint venture between Rio Tinto (45.05%)
Chalco Iron Ore Holdings (CIOH) (39.95%) and the Government of the Republic of Guinea (15%).
DLA Piper’s Hong Kong-based foreign legal consultants Carolyn Dong and Russell Wilkinson led the CIOH transaction
All are part of the firm’s Energy and Natural Resources sector team
Dong says the DLA Piper team worked tirelessly to help its client overcome challenges and finally reach a closing
“This transaction demonstrates DLA Piper’s strength in providing our clients with a best-in-class service spanning multiple areas of law across different global jurisdictions
Our firm truly operates as one global team,” she says
The Simandou project has been in development for over a decade
CIOH and Rio Tinto formed joint venture company Simfer Jersey to invest in the development of a 60 million tonne per year iron ore mine in blocks 3 and 4 of the Simandou project
Simfer Jersey will also invest and fund its share of a co-developed rail and port infrastructure
including more than 600km of new multi-use trans Guinean railway and port facilities which will allow the export of up to 120 million tonners of mined ore per year
The mine will initially deliver a single fines product before transitioning to a dual fines product of blast furnace and direct reduction ready ore
CIOH has paid its share of capital expenditures amounting US$985 million required by Simfer Jersey to progress critical works up to the closing of the infrastructure investment agreement
CIOH has continued to invest further amounts as required in order to achieve the closing of the investment agreement for the port and the rail infrastructure
Write to Adam Orlando at Mining.com.au
ABC Refinery: Back to the future with Trump’s tariffs
Donald Trump may have ‘borrowed’ the phrase “Make America Great Again” from..
Pacgold accelerates Alice River with new resource
Lincoln receives loan to advance Minbrie
Great Boulder plots more holes at Ironbark
Lion’s legacy investments ‘demonstrating compelling value’
Mid West ‘ideal’ export hub for clean...
Zeotech executes MoU with global trading house
Hazer forms Kellogg Brown and Root alliance
Flagship eyes potential to expand Pantanillo’s mineralisation
ASX feeling a bit deflated, gold rebounds
Plug-in hybrid EV sales decline amid slowing...
Stay Informed on up-to-the-minute mining news
Get the best articles straight to your inbox
ABC Refinery: Back to the future with Trump’s tariffs06 May
Flagship eyes potential to expand Pantanillo’s mineralisation06 May
Pacgold accelerates Alice River with new resource06 May
Get the latest Mining news delivered straight to your inbox
Move of central SOE to ensure supply of raw materials amid COVID pandemic and further increase self-sufficiency
Aluminum Corporation of China Ltd (Chalco)
a centrally administered State-owned enterprise
is set to send its first shipment from a bauxite mine in Boffa
the company told China Daily in a written statement
A large ocean-going ship laden with high quality bauxite from Boffa in Guinea
Chalco's first large-scale overseas aluminum project
is about to arrive at the Fangchenggang port in the Guangxi Zhuang autonomous region
a major cooperation project between China and Guinea that started construction in 2018
will be completed two months ahead of schedule
It will not only bring mutual benefits and win-win results for both sides but also become an important source of overseas bauxite resources for Chalco
Bauxite is a rock which can be refined and is the main source in the world for aluminum
Chalco is a leading company in China's nonferrous metals industry
It is engaged in the whole value chain by exploring and mining bauxite and coal
primary aluminum and aluminum alloy products
It is also involved in international trade
and power generation from both fossil fuels and new energy products
Industry analysts believe the Boffa project plays a significant role in ensuring the company's sourcing of raw materials
"China's mining companies have been going overseas to secure a stable supply of raw materials
has entered into an agreement to develop the Boffa bauxite in Guinea
in order to increase its self-sufficiency in bauxite to 75 percent by the end of 2021," said Zhu Yi
a senior analyst for metals and mining at Bloomberg
Zhu believes the full production ramp-up of the Boffa mine could lift Chalco's bauxite output by 80 percent by the end of 2021
The mine has an expected life span of 60 years with full-capacity annual production forecast at 12 million metric tons
The company said the initial phase consists of production of 12 million tons of bauxite ore per year
The available resource reserves in the mining area of the project is around 1.75 billion tons
and the company plans first phase construction with an annual output capacity of 12 million tons
Zhu said Chalco has been investing to increase its self-sufficiency of raw materials such as bauxite and alumina
and increasing its ratio of captive power to reduce costs amid ample output of aluminum of China
with power costs accounting for more than 40 percent of total production costs
It is believed the new infrastructure plan will also boost China's aluminum consumption and push for structural changes of China's aluminum industry to produce more high value-added products
China has pledged fresh efforts to push forward the construction of new infrastructure
including next-generation information networks
as well as building more new energy vehicle charging facilities to promote the wider use of new energy automobiles
a government work report delivered at the annual national legislative session said
a former deputy head of the National Development and Reform Commission
said the country's investment in "new infrastructure" is expected to reach 17.5 trillion yuan ($2.47 trillion) for the 2020-2025 period
an annualized growth rate of around 21.6 percent
While China's aluminum industry is currently oversupplied with low-end commodity grade products
it is in a supply deficit for high-end products
The construction of inter-city high speed train and 5G base station requires high-end aluminum products
She believes China's exports of aluminum products will decline this year by around 10 percent
The demand from export-oriented home appliance and auto producers for aluminum products will also fall
as these producers find it difficult at this time to export
Chalco said as the COVID-19 pandemic develops overseas
the company has hired local medical teams to provide guidance and support for workers at the Boffa project to ensure their security and well-being
The company has also been teaming up with local partners to sustain its project even though many infrastructure project operations overseas have been slowed by the disease
To make sure the project operates on schedule
the Guinea branch of the company has covered all the flight and quarantine expenses to send staff back to Guinea to push the project forward
All of its overseas units and offices have strictly complied with the COVID-19 prevention and control measures
These measures have laid down protocols for each project in accordance with local conditions
The firm has donated a huge amount of pandemic-prevention supplies
as well as medical equipment worth more than 1.54 million yuan to several countries
Sarpy County Administrator Mark Wayne pores over topographical maps in his Papillion office
He's explaining the boundaries and makeup of Chalco
they don't have any other elected officials
so they really don't have authority to do anything," he says
Looking down the main street in the non-subdivision part of Chalco
The middle portion of Chalco is undeveloped
There are 50 unincorporated communities in Nebraska
ranging from 10 people to more than 10,000
incorporation authorizes a town to form a government
The northern and southern ends are parceled into neat
well-dressed subdivisions with names like Willow Creek and Birchfield
A narrow stretch across the middle is undeveloped fields
A central portion is a mix of commercial businesses
as well as residential homes in various states of charm or disrepair
is its size: the 2010 Census lists its population as just shy of 11,000 people
The next largest CDP is Offutt Air Force Base; third is Woodland Park
located just outside of Norfolk with about 1,800 people
Chavez lives in unincorporated Sarpy County while Devaux has lived in Chalco for more than a decade without realizing it isn't incorporated
Chavez said she's noticed the inefficient handling of waste
"Everyone uses different companies," she said with a laugh
adding she sees trucks from four or five providers
however; Wayne said many people probably don't realize they live in Chalco
"Most people probably don't even know what Chalco is," he said
"And (they) probably feel aligned with the metro area
because in this case they border the county line."
But what does it really mean to be unincorporated
And how does a town become incorporated in the first place
"The law provides that if an area has at least 100 population
they can petition the county to become incorporated," said Gary Krumland
assistant director and legal counsel for the Nebraska League of Municipalities
Benefits of incorporation include self-government
"An incorporated municipality does have the authority to impose taxes."
There's also a good deal of paperwork that goes along with being incorporated - so incorporation can add a lot of responsibilities
But it's also unlikely to be annexed any time soon
Wayne said though Omaha shares a border with Chalco
it'll be a while yet before the city spreads far enough west to even consider annexation
the increased taxes might not be enough to cover city services
the city would decide whether they have the ability to provide city services to this area," he said
Those are pretty basic functions of a community
law enforcement is provided by the county sheriff
and a nearby Millard Rural Fire Department station is contracted to handle any fires
School districts aren't bound by city limits
They're also called Sanitary Improvement Districts
and they levy a fee on residents to provide needed services like sewage and street upkeep
they're pretty uncommon in most of the country
"It's somewhat unique to Nebraska," Wayne said
"A lot of other states don't allow that at all
because the city of Lincoln wants to control where the growth is
So they only extend their sewer and water in certain areas
and that's where the developers have to go."
There are some downsides to being unincorporated: no public libraries
If Chalco residents want to use the Omaha or La Vista public libraries
Lack of a cohesive city plan can also lead to sloppy development
Wayne said - as with the middle section of Chalco
This makes it difficult for the county to guide growth
It's also part of the reason why most states don't allow SIDs
It's hard to say whether the fees collected by SIDs or the taxes levied by a city are higher
Neither Chavez nor Devaux knew offhand the amount their SIDs charge for services
Devaux said she doesn't really vote anyway
but Chavez said she would appreciate being able to elect community representatives
Get the latest from around Nebraska delivered to your inbox
online and mobile platforms.Your support is essential
The federal government has formally announced that it will build a passenger rail project to link three México state municipalities to the east of Mexico City
the 27.9-billion-peso (US $1.5-billion) project will connect Chalco
to the Santa Martha Metro station in the Mexico City borough of Iztapalapa
electrically-powered railroad will likely have seven stations including the two terminals and run via the municipalities of Valle de Chalco and Ixtapaluca
The project is similar to one announced by the former federal government that never got off the ground
It planned to extend line A of the Metro to Chalco from its southern terminus in La Paz
The project was forecast to cost 11.6 billion pesos but was never allocated the resources
The newspaper El Universal reported that the former government instead decided to build the Mexicable cable car system in the México state municipality of Ecatepec
The current government has already allocated resources in its 2021 budget to begin construction of the new project
A cost-benefit analysis conducted by a private firm was delivered to the government at the end of last year
The rail project would not only benefit residents of Chalco
Valle de Chalco and Ixtapaluca but also people living in other densely populated México state municipalities that are part of greater Mexico City’s southeastern sprawl
It is predicted that almost 138,000 passengers will use the rail service per day in its first year of operation and that demand will increase to just over 168,000 in 2025
The government has several other rail projects on its hands
It intends to complete the Mexico City-Toluca intercity railroad
which was left incomplete by the Peña Nieto administration
and extend the Mexico City suburban rail line to the new Santa Lucía airport that is currently under construction
In addition, the government is building the Maya Train in the country’s southeast and plans to upgrade the rail link across the Isthmus of Tehuantepec between Salina Cruz
Source: El Universal (sp)
We use cookies to ensure you get the best experience on our website
You can learn more about our cookies and privacy policies
China Debuts $3 Billion State Iron Ore Giant
Exclusive: China Close to Setting Up Iron Ore Trading Giant
Participation of Indian Prime Minister Narendra Modi in the 5th Eastern Economic Forum Discussed in Moscow
Get exposure for your startup at RISE 2020
CreditEase’s Tang Ning: China’s Wealth Management Market is Undergoing Five Major Shifts
Meet 5 of the best startups selected to represent China at the largest technology event in Asia
Share on FacebookShare on X (formerly Twitter)Share on PinterestShare on LinkedInOMAHA
(WOWT) - A new playground was unveiled Saturday in the Chalco Hills area that honors the memory of a young boy
Dominik Walters was only four years old when he suffered from cardiac arrest in August 2018
The Chalco Hills Recreation Area was one of his favorite places to explore
“We are absolutely thrilled to be able to share Dom’s Park with our family
and community,” said Ryan and Tiffany Walters
So his family approached the Papio Missouri Natural Resources District about donating money to create a park in his honor
“It has been our privilege to work with Ryan
and Boon and to be a partner on this special cost share project,” said Papio NRD General Manager John Winkler
“The Walters turned unimaginable tragedy into a positive
to say it’s been a tremendous hit would be an understatement
Dom’s Park is an incredible tribute to Dom and gift to the Omaha community that will last for years to come.”
An official ribbon-cutting ceremony was held celebrating the opening of Dom’s Park in the northwest corner of the Chalco Hills picnic area
“We owe a debt of gratitude to every person who supported us in making Dom’s Park possible
said the Walters.” “Chalco Hills was one of Dominik’s favorite places and we could not imagine Dom’s Park being located anywhere else
We are grateful beyond words to the Papio NRD for believing in our vision and helping make Dom’s Park a reality.”
(KMTV) - A ribbon-cutting ceremony was held Saturday to celebrate the opening Dom's Park at Chalco Hills Recreation Area
The playground is named after 4-year-old Dominik (Dom) Walters
who died in 2018 after suffering a cardiac arrest while doing cannonballs off a dock with his father near the family cabin in Minnesota
The Walters family often visited the Chalco Hills Recreation Area to explore the area or use the playgrounds
the family talked to the Papio-Missouri River Natural Resources District about donating funds for a new playground at Chalco Hills that children throughout the community could enjoy
ALSO SEE: Walters keep son's memory alive with Dom's Park
The Papio NRD Board of Directors was open to the idea and voted to approve cost share for the purchase and installation of the facility
Dom's Park eventually opened last month and replaced playground equipment that was over 30 years old
Papio NRD general manager John Winkler said the park has already been a smashing success
to say it’s been a tremendous hit would be an understatement," Winkler said
"Dom’s Park is an incredible tribute to Dom and gift to the Omaha community that will last for years to come,” said Winkler
The cost of the playground equipment and installation at Dom's Park totaled $279,071
It was paid for through donations to the Dominik Walters Memorial Fund
a matching grant by playground equipment company BCI Burke Company
“We owe a debt of gratitude to every person who supported us in making Dom’s Park possible," said the Walters
“Chalco Hills was one of Dominik’s favorite places and we could not imagine Dom’s Park being located anywhere else
We are grateful beyond words to the Papio NRD for believing in our vision and helping make Dom’s Park a reality."
Dom’s Park is located in the northwest corner of Chalco Hills Recreation Area near Picnic Area A
of China and Yunnan Aluminum are under the same parent
which analysts said could make it the world's largest listed aluminum producer
Shanghai and Hong Kong-listed Chalco will pay 6.66 billion yuan ($986.5 million) for around 19% of Yunnan Aluminum
the company said in a Sunday exchange filing
The per share price of 10.11 yuan represents a premium of 5.5% on Friday's closing price
Africa Intelligence brings you exclusive coverage of the major political
economic and diplomatic issues at stake on the African continent
identifying power players on the rise and low-frequency signals on the horizon
Peruse our daily story summaries to get the scoop on tomorrow's top stories ahead of the crowd
We will not use your address for advertising or commercial purposes
Discover our work by making use of the following possibilities: daily newsletters
Do you want a free trial before subscribing
A cookie is a text file placed on the hard drive of your terminal (computer
It aims to make browsing more fluid and to offer you content and services tailored to your interests
These cookies are required to ensure the reliability and security and our website
They are also used to create and log into your user account
Three ways to create your email notifications:
Do not hesitate to create your own notifications according to your interests : better criteria narrows down the results
You can modify or delete your notifications or summaries in your account
Sign up for real-time alerts and be notified of new editions
you will be notified by a short message on your computer or mobile phone as soon as a new edition of our publication or an alert is published
This very nice park is located just five minutes away from one of my camping spots in Omaha
There’s a walking/biking path around Wehrspann Lake
I live in a converted campervan and travel around the country
posting photo diaries of places that I visit
Not signed up for Daily Kos yet? Create a free account
the general manager of Aluminum Corporation of China (CHALCO)
said that the company will continue to explore investment opportunities in Mongolia’s natural resources sector
The statement came less than two weeks after CHALCO announced it had dropped plans to acquire stakes in SouthGobi Resources due to regulatory hurdles
SouthGobi operates mining assets in Mongolia
When asked about CHALCO’s 1H losses of CNY 3.25 billion (USD 512.7 million)
Xiong said a weak market had led to the poor performances and that production surpluses in the aluminum market are likely to last beyond the short-term future
Source (Chinese): Caijing
Gruyere gold mine joint venture partners Gold Fields and Gold Road Resources reach agreement on a friendly deal to consolidate ownership.
The initiative will be delivered through the regional joint venture established by Fleet Space Technologies and Tahreez.
The US central bank is widely expected to hold rates steady in this meeting.
Romania has major reserves of rare earths, gold and copper, which have attracted interest from Canadian and American firms.
Metrics details
Perovskite-related materials have received increasing attention for their broad applications in photovoltaic solar cells and information technology due to their unique electrical and magnetic properties
Here we report three new antiperovskite chalco-halides: Ba3(FeS4)Cl
All of them were found to be good solar light absorbers
although the shortest Fe-Fe distance exceeds 6 Å
an unexpected anti-ferromagnetic phase transition near 100 K was observed in their magnetic susceptibility measurement
The corresponding complex magnetic structures were resolved by neutron diffraction experiments as well as investigated by first-principles electronic structure calculations
The spin-spin coupling between two neighboring Fe atoms along the b axis
which is realized by the Fe-S···S-Fe super-super exchange mechanism
was found to be responsible for this magnetic phase transition
New perovskite materials have been infused with various undiscovered new physical functions
It is interesting to investigate what properties will appear in the antiperovskite halides for B = X (X = Cl
an anisotropic atomic group containing a transition metal at the A site may result in certain new novel chemical/physical properties
three new antiperovskite chalco-halides M3AB (Ba3(FeS4)Cl
All these chalco-halides showed semiconducting behavior in UV-vis absorption and electrical transport measurements
an unexpected anti-ferromagnetic phase transition around 100 K was observed during the magnetic susceptibility measurements
The transition is attributed to the antiferromagnetic super-super exchange of Fe3+ spins which have the shortest distance of more than 6.267 (2) Å
(a) Schematic diagram of the crystal structure of Ba3(FeS4)Br viewing down the a axis
(b) Coordination environments of (b) Fe and (c) Br atoms
Ba3(FeS4)Br and Ba3(FeSe4)Br can be called as a chalco-halides
five other reported compounds Ba3MQ4X (M = Ga
Br) can also be included in this chalco-halide family
although they have not been noticed to be antiperovskites
if the Ba atoms in these chalco-halides are replaced by Pb
the carrier mobility can greatly be enhanced in the perovskite-like framework of Pb3X filled by the A-site tetrahedral groups
which may be another promising photovoltaic material after MAPbX3 for the next generation solar cells
(a) Powder X-ray diffraction patterns of Ba3(FeS4)Br
(b) Solid state UV-Vis spectrum of Ba3(FeS4)Br
(c) Temperature dependence of the resistance of Ba3(FeS4)Br
Inset: ln(R) vs T−1/4 plot of the VRH model
(d) Temperature dependence of the magnetization of Ba3(FeS4)Br
Inset: The inverse magnetic susceptibility vs temperature plot
The red line is the linear fit of the magnetic susceptibility data from 400 K to 150 K
It is obvious that the further the magnetic ions separate
the weaker that the spin-spin coupling will be
from the crystal structure the nearest Fe-Fe distance in Ba3(FeS4)Br is 6.267(2) Å
which is too far for the direct spin-spin interaction between Fe atoms
it will be of great interest to investigate the origin of the antiferromagnetic order at 84 K
calculated (line) and difference (noisy line below observed and calculated patterns) NPD profiles for Ba3(FeS4)Br at 4 K
Vertical bars indicate the calculated positions of Bragg peaks from the nuclear phase and from the magnetic phase (from the top)
Some extra peaks from unknown impurities were excluded
(b) Temperature dependent intensities of the (010) magnetic reflection
(c) Magnetic structure of Ba3(FeS4)Br view down b axis (left) and c axis (right)
Proposed antiferromagnetic orders (a) AFM1 and (b) AFM2 with 2 spins up and 2 spins down in first-principles electronic structure calculations
(c) Spin density plot of Ba3(FeS4)Br in the AFM1 state
(d) Charge density plane of FeS45– tetrahedra along the b axis
the spin-spin coupling between the two nearest Fe atoms is realized by the Fe-S···S-Fe antiferromagnetic super-super exchange along the b axis
we have synthesized three new chalco-halides Ba3(FeS4)X (X = Cl
all of which all belong to a new type of antiperovskites
The band gap estimations revealed that these antiperovskites are good solar light absorbers
antiferromagnetic transitions near 100 K were observed in Ba3(FeS4)X (X = Cl
The corresponding magnetic structures were resolved by neutron diffractions as well as studied by the first-principles electronic structure calculations
The calculations further showed that the antiferromagnetic ground states feature the opposite spin orientations in Fe···Fe zigzag chains along the b axis and the spin-spin coupling between a pair of the nearest Fe atoms is realized by the Fe−S···S−Fe antiferromagnetic super-super exchange along the b axis
These antiperovskite chalco-halides may provide us new ways to searching new promising photovoltaic materials after MAPbX3 for the next generation solar cells and new physical functions
was measured using the standard two-probe technique in the Resistivity model collected on a Physical Properties Measurement System (PPMS)
single crystals were ground and pressed into disks
Silver paste was applied which act as the contact electrode
Magnetic properties were studied using the PPMS
Temperature-dependent direct-current (DC) magnetic susceptibility (M–T) curve of the sample was measured from 400 to 2 K at 10000 Oe magnetic field under zero field cooling (ZFC) and field cooling (FC) conditions
Ba3(FeS4)Br and Ba3(FeSe4)Br with Spin Super-Super Exchange
dielectric and piezoelectric properties of ferroelectric thin films and ceramics
Polarization rotation mechanism for ultrahigh electromechanical response in single-crystal piezoelectrics
Origin of ferroelectricity in perovskite oxides
Low-temperature magnetoresistance and the magnetic phase-diagram of La1-xCaxMnO3
Giant Magnetoresistance and Related Properties of Rare-Earth Manganates and Other Oxide Systems
Colossal magnetoresistant materials: The key role of phase separation
Deposition of extremely thin (Ba,Sr)TiO3 thin-films for ultra-large-scale integrated dynamic random-access memory application
Highly insulative barium zirconate-titanate thin films prepared by rf magnetron sputtering for dynamic random access memory applications
Importance of phase fluctuations in superconductors with small superfluid density
Determination of the local lattice distortions in the CuO2 plane of La1.85Sr0.15CuO4
Excitation gap in the normal state of underdoped Bi2Sr2CaCu2O8+δ Science 273
Advances in the physics of high-temperature superconductivity
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
Mesoscopic CH3NH3PbI3/TiO2 Heterojunction Solar Cells
Efficient hybrid solar cells based on meso-superstructured organometal halide perovskites
Sequential deposition as a route to high-performance perovskite-sensitized solar cells
Perovskite solar cells with a planar heterojunction structure prepared using room-temperature solution processing techniques
Interface engineering of highly efficient perovskite solar cells
All-solid-state dye-sensitized solar cells with high efficiency
Lead-free solid-state organic-inorganic halide perovskite solar cells
Lead-free organic-inorganic tin halide perovskites for photovoltaic applications
Identifying the Optimum Morphology in High-Performance Perovskite Solar Cells
Minerals with antiperovskite structure: a review
Research Progress on Ni-Based Antiperovskite Compounds
Superconductivity in the non-oxide perovskite MgCNi3
Mechanical Properties of Metallic Perovskite Mn3Cu0.5Ge0.5N: High-Stiffness Isotropic Negative Thermal Expansion Material
Theory of the piezomagnetic effect in Mn-based antiperovskites
Magnetoelectric effect in composites of piezoelectric and piezomagnetic phases
Giant barocaloric effect enhanced by the frustration of the antiferromagnetic phase in Mn3GaN
Phase Stability and Transport Mechanisms in Antiperovskite Li3OCl and Li3OBr Superionic Conductors
Li-rich anti-perovskite Li3OCl films with enhanced ionic conductivity
Migration and Stability in Li3OCl Solid Electrolytes
Anomalous Hysteresis in Perovskite Solar Cells
Compositional engineering of perovskite materials for high-performance solar cells
Electronic Processes in Non-Crystalline Materials (Clarendon
Conduction in glasses containing transition metal ions
Crystal and Electronic Structures and Characterizations of Quaternary Antiferromagnetic Sulfides: Ba2MFeS5 (M = Sb
Octahedrally coordinated iron in Ba-Fe-S system-Ba9Fe3S11(S2)2
Ba15Fe7S25 and Ba3FeS5- crystal-structures
Program for Solution and Refinement of Crystal Structures
General Structure Analysis System (GSAS) Los Alamos National Laboratory Report Laur 86–748
Ab initio molecular dynamics for liquid metals
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set
From ultrasoft pseudopotentials to the projector augmented-wave method
Generalized gradient approximation made simple
Computer graphics and graphical user interfaces as tools in simulations of matter at the atomic scale
Download references
This work was financially supported by Innovation Program of the CAS (Grant KJCX2-EW-W11)
“Strategic Priority Research Program (B)” of the Chinese Academy of Sciences (Grants XDB04040200)
21201012 and 11190024) and Science and Technology Commission of Shanghai (Grant 12XD1406800)
was supported by the Fundamental Research Funds for the Central Universities and the Research Funds of Renmin University of China (14XNLQ03)
Zhang Xian and Liu Kai contributed equally to this work
Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications
College of Chemistry and Molecular Engineering
Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices
CAS Key Laboratory of Materials for Energy Conversion and State Key Laboratory of High Performance Ceramics and Superfine Microstructure
National Institute of Standards and Technology
performed sample synthesis and crystal structure
magnetic susceptibility and resistance measurements with assistant from J.H
did the spin-polarized electronic structure calculations
performed NPD experiment and did the Rietveld refinement
are responsible for the infrastructure and project direction
All of the authors discussed the data and commented on the manuscript
The authors declare no competing financial interests
Download citation
a shareable link is not currently available for this article
Sign up for the Nature Briefing newsletter — what matters in science
may have been perpetrated by one of three criminal organizations engaged in a turf war in the municipality
Morena party Mayor Francisco Tenorio Contreras was shot on Tuesday while visiting a residential development in Chalco
which borders the southeast of Mexico City
The mayor suffered brain injuries and is in serious condition in hospital
One line of investigation being pursued by the México state Attorney General’s Office (FGJEM) is that the Tláhuac Cartel was involved in the attack
Originating from the Mexico City borough of the same name
the criminal group is vying for control of Chalco along with La Unión de Tepito and La Familia Michoacana
La Unión and the Tláhuac Cartel have diversified their criminal activities in the municipality in recent months
All three groups are involved in drug dealing and have committed crimes in Chalco including violent car robberies and extortion
The Tláhuac Cartel is believed to have beefed up its presence in Chalco during the administration of former Democratic Revolution Party mayor Ramón Montalvo Hernández
The ex-mayor denied that his government made a pact with the criminal group to allow it to operate in the municipality although he acknowledged that he received threats that urged him to authorize its presence
After several murders in Chalco following the 2017 death of former Tláhuac Cartel leader Felipe de Jesús “El Ojos” Pérez Luna in a confrontation with marines and police
Montalvo asked the FGJEM to investigate him and his close associates in order to rule out any suspicion of their involvement with organized crime
The former mayor has not faced any formal accusations that he has links to criminal groups
based in the infamous Mexico City neighborhood of the same name
has moved into Chalco and neighboring Tláhuac more recently
Municipal police commanders told the newspaper El Universal that its members
are responsible for carjackings in Chalco in recent months
Some people who have been arrested have admitted to belonging to the criminal groups
Although three groups are engaged in a dispute to control Chalco
violent clashes and crime generally have fallen since Tenorio was sworn in as mayor 10 months ago
Municipal secretary Eliseo Gómez López said that at the start of the year
Chalco had the 17th highest crime rate out of 125 México state municipalities
We’re opting to attack [crime] firmly and decisively and we weren’t doing badly
one of the mayor’s public policies was a head-on fight against crime and corruption,” Gómez said
Source: El Universal (sp), Milenio (sp)
Chalco’s share price [SHA:601600] closed up 1.7 percent at CNY4.61 (USD0.68). Earlier in the day it had hit CNY4.78.
Yunnan Aluminum [SHE:000807] climbed 2.7 percent to finish the day at CNY9.84 (USD1.45). Earlier in the day it surged 6.2 percent to CNY10.18. Both stocks have more than halved in value since September last year.
Chalco is boosting its holdings of Yunnan Aluminum to 29.1 percent from 10.1 percent to become the biggest stakeholder, the Beijing-based firm said yesterday. The pricing of the deal is CNY10.11 (USD1.50) per share, a 3 percent premium on today’s latest share price.
The acquisition will allow integrated and better management in the aluminum oxide and electrolytic aluminum sectors, Chalco said. The field has come under pressure in recent months with the price of aluminum trades on the London Metal Exchange sliding 40 percent since March.
After the take-over, the pair will merge their financial statements, giving the new entity a market capitalization of over CNY110 billion (USD16.3 billion). Kunming, southwestern Yunnan province-based Yunnan Aluminum’s advantages in clean energies will also bolster the company’s green aluminum capacity, Chalco added.
Parent firm Aluminum Corporation of China Group, also known as Chinalco, has long been planning such a merger, saying in 2019 that it will resolve internal competition within five years.
View location on google maps
You'll now receive updates based on what you follow
Personalize your stream and start following your favorite authors
If you have done all of this and still can't find the email
State-run Chinese aluminium producer Chalco’s bauxite project in Guinea is “operating normally” after the overthrow of President Alpha Conde
a Chalco spokesperson said in a text message on Monday
formally known as Aluminum Corp of China Ltd
from the Boffa mine in the West African country
and website in this browser for the next time I comment
Δdocument.getElementById( "ak_js_1" ).setAttribute( "value"
said late Tuesday it would make a capital contribution of 352.85 million yuan ($49.75 million) to China Rare Earth
Chalco’s stake in China Rare Earth would increase to 23.94% from 14.62% through the capital contribution
the company said in a filing to the Hong Kong stock exchange
Chalco boosted the production of gallium
a minor metal used in semiconductors by the electronics and telecom industries
The company produces gallium as a byproduct of alumina
“The transaction is conducive to the company’s revitalisation of assets irrelevant to the principal businesses and increase of investment returns,” Chalco said
(By Tom Daly; Editing by Sherry Jacob-Phillips)
China’s largest aluminum producer is in trouble for improperly handling hazardous waste at one of its plants
In the company’s latest run-in with authorities
and five of its employees have been reprimanded or dismissed
China has struggled to control pollution in the air
and soil — an unfortunate byproduct of the country’s rapid economic growth
it has managed to beef up its regulatory framework by expanding the number of items considered hazardous
doling out steep fines for breaches of regulations
and making pollution-related crimes subject to imprisonment
has had its own struggles in complying with the laws
and is now caught up in the tightening net of regulation
The chemical reaction of deriving aluminum from alumina produces cathode carbon blocks and other potentially harmful byproducts
all of which were added to the national hazardous waste list and categorized as “toxic” materials in August 2016
According to a Tuesday report by Party newspaper People’s Daily
admitted the company had not managed its hazardous waste well prior to August 2016 but said that it had been taking measures to comply since then
The latest fines reportedly apply to material
that predates the August 2016 classification
Sixth Tone’s repeated calls to Chalco’s Lanzhou office and the media department of Chalco’s national headquarters in Beijing went unanswered on Thursday
Chalco’s investor relations department told Sixth Tone it was not responsible for commenting on the matter
Chalco’s poor performance was brought to light by the activities of Airman
a Beijing-based environmental NGO dedicated to improving air quality
In September, Airman said in a statement on social media app WeChat that while conducting field research in Gansu, it had discovered that the Chalco factory in Lanzhou was not properly disposing of its hazardous industrial waste, which included thousands of cathode carbon blocks. Soon after, the city’s environmental watchdog ordered the Chalco factory to safely dispose of its 1,700 tons of carbon blocks
when Airman returned to the site in early December
they found that the massive quantity of carbon blocks had been buried underground
Gansu Xinxin Furnace Company, the contractor hired by Chalco’s Lanzhou operations to dispose of the waste, was fined the same amount as its employer for failing to “take relevant safety measures,” according to Lanzhou’s environmental protection bureau
executive director of the environmental law center at Beijing Impact Law Firm
told Sixth Tone that a big company such as Chalco should be much more aware of environmental regulations
“[If] such a well-established company could have done these illegal acts
then small enterprises should be even harder to supervise,” he said
Li said that dumping hazardous waste is a violation of criminal law that could
the disposal of hazardous waste — including its transportation — must be reported to the environmental authorities,” he said
“This case reflects a clear lack of supervision.”
(Header image: A worker operates heavy machinery at Meixin Aluminum Industry Company in Suixi County
conceived as a coordinated effort and an alliance of designers
the project is two independent spaces — sports court and pavilion — that beyond being isolated experiences
are linked through the activities they contain
all arquitectura’s mix-use blue court of 15m x 25m is a compositional axis
an essential part of the project that proposes relocation according to the north-south axis
allowing greater use of it throughout the day
hosted between the streets sur 11 and sur 12
the property to intervene offers the opportunity to achieve the connection between both roads
allowing the visitor to make use of the space as a link
following the paths of people through space and areas surrounding
an open pavilion ends in one of the edges of the field — under a large roof there are administrative area
and next to an area of multiple uses that will allow the constitution of workshops
classes and exhibitions that may be carried out at any time of the day no matter the weather conditions
this pavilion as a union of the adjoining properties: an abandoned library and an uninhabited land
with the intention for a future phase to relate and integrate both properties to the project
is used as a large public square where the perspective and experiences of the many ethnic origins of which valle de chalco is constructed can be offered through artistic representations
the design integrates a large permeable area that allows the filtration of rainwater and thus the replenishment of the historic laguna de xico
the project obeys the ever-changing needs of a historically important area for the city and the valle de méxico which
дocal kids looking at their future space
an open pavilion that integrates different uses and performances
all photos of the construction process by armando juárez
architecture & design: all arquitectura
lighting project: brenda castillo garcía
location: valle de chalco, méxico
photography: aerial photographs — zaickz moz, site photographs — marcos betanzos
construction record — armando juárez
designboom has received this project from our ‘DIY submissions‘ feature, where we welcome our readers to submit their own work for publication. see more project submissions from our readers here.
AXOR presents three bathroom concepts that are not merely places of function
but destinations in themselves — sanctuaries of style