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Sediment Quality Assessment on bartlett Pond in Laredo, Southern Texas, USA

Open Journal of Soil Science 2025年第1期15卷 43-69页

作者： Maya P. bhatt Ganesh b. Malla Amede Rubio Alfred Addo-Mensah Department of biology and Chemistry Texas A&M International University University Boulevard Laredo Texas USA Departjment of Mathematics Computer Geology and Physics University of Cincinnati-Clermont College Clermont Drive Batavia OH USA

This study evaluates the dynamics of trace metals impacts on the ecosystems of the bartlett Pond, a small shallow wetland pond located in Laredo, Texas by analyzing sediment samples taken from four quadrants of the pond. The concentrations of trace elements in sediment samples are highest for iron (Fe), followed by chromium (Cr), then lead (Pb), with lower concentration of antimony (Sb), cobalt (Co), arsenic (As), cadmium (Cd), and the lowest concentration being thallium (Tl) within bartlett Pond. The sediment quality of the pond is acceptable for organisms and the environment as trace element concentrations (e.g. As, Cd, Cr, and Pb) are within the probable effect concentration (PEC) of National Ocean and Atmospheric Administration (NOAA) guidelines although the PEC values for Co, Fe, Sb and Tl are not given. bivariate and multivariate correlation analysis shows that most trace elements exhibit a strong positive correlation among them indicating the same anthropogenic sources and biogeochemical processes control these trace elements concentrations within the pond. We provided a comprehensive snapshot of trace element concentrations in sediments through descriptive analysis, laying the foundation for future environmental risk assessments. Correlation analysis of eight trace elements helped identify relationships, offering insights into pollution sources and potential health impacts. Additionally, univariate and multivariate predictive analyses generated numerous models, extending beyond the interpretation of partial and full regression coefficients. We also included graphical analyses of trace element variations, which are critical for understanding environmental processes and geochemical patterns. These findings advance our understanding about trace metals dynamics in sediments and may be a valuable reference for ecosystems and environmental management of different landscapes.

关键词： Trace Elements Sediment Wetlands bartlett Pond Ecosystem Ecology

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Prevalence and Antimicrobial Resistance of Gram-Negative bacteria Isolates in Shellfish Samples from Two River Estuaries in South-South Nigeria

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Advances in Microbiology 2021年第9期11卷 428-443页

作者： Nsikan Samuel Udoekong bassey Enya bassey Anne Ebri Asuquo Otobong Donald Akan Casmir Ifeanyichukwu Cajetan Ifeanyi Science Technology Department Akwa Ibom State Polytechnic Ikot Ekpene Nigeria Nigeria Country Office World Health Organization (WHO) Abuja Nigeria Department of Medical Laboratory Science University of Calabar Calabar Nigeria College of Food Science and Engineering Central South University of Forestry and Technology Changsha China Microbiology Department Akwa-Ibom State University Ikot Akpaden Nigeria Department of Veterinary Microbiology Faculty of Veterinary Medicine University of Abuja Abuja Nigeria

Antibiotic resistant bacteria pathogens remain the leading cause of shellfish borne diseases and a major health threat to humans worldwide. The objectives of this study were to isolate, identify, and determine the antibiotic resistance patterns of Gram-negative bacteria from shellfish. We analyzed a total of 540 shellfish (117 clams, 88 oysters, and 136 periwinkles) samples collected from different vendors at Iko and Douglas Creeks in Akwa Ibom State, South-South Nigeria. Conventional cultural techniques, morphological, biochemical characteristics, and PCR amplification were used to identify the bacterial isolates. Antibiotic susceptibility tests (Kirby-bauer disk diffusion method) and ESbL phenotype (disk) of the isolates were performed. One hundred and thirty-five (135) Gram-negative bacteria comprising 5 genera and 14 species were detected at a prevalence of: Alcaligenes faecalis b>TRbb>-7 38 (28.2%), Pseudomonas oryzihabitans strain b>KCb005b> 16 (11.9%), Paenalcaligenes retgerii strain b>b5b> 12 (8.9%) Pseudomonas aeruginosa b>Jb2b> 10 (7.4%), Providencia stuartii b>DMC-28bb> 9 (6.7%), Alcaligenes species b>TLT151b> 8 (5.9%), Pseudomonas aeruginosa b>CIFRI DTSb1b> 7 (5.2%), Paenalcaligenes species b>UN24b> 7 (5.2%), Alcaligenes faecalis b>bT10b> 7 (5.2%), Vibrio species strain b>PrVy108b> 6 (4.4%), Pseudomonas xiamenensis b>C10-2b> 5 (3.7%), Providencia vemicola b>bu15_38b> 4 (2.9%), Pseudomonas anguillisceptica b>4029b> 3 (2.2%), and Pseudomonas aeruginosa b>N15-01092b> 3 (2.2%). All tested isolates showed various degrees of resistance to the thirteen antimicrobials evaluated. High levels of resistance (100%) to cefepime and imipenem were expressed by all isolates except the Providencia species. For the EbSL indicators, all isolates apart from Alcaligenes species were resistant (100%) to ceftriaxone. A

关键词： Shellfish Gram-Negative bacteria ESbL-Indicators Multi-Drug Resistance Calabar

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Platform for laser-driven X-ray diagnostics of heavy-ion heated extreme states of matter

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Matter and Radiation at Extremes 2025年第1期10卷 57-71页

作者： P.Hesselbach J.Lütgert V.bagnoud R.belikov O.Humphries b.Lindqvist G.Schaumann A.Sokolov A.Tauschwitz D.Varentsov K.Weyrich b.Winkler X.Yu b.Zielbauer D.Kraus D.Riley Zs.Major P.Neumayer Institut für Angewandte Physik Goethe-Universität Frankfurt am MainMax-von-Laue Str.160438 FrankfurtGermany GSI Helmholtzzentrum für Schwerionenforschung GmbH Planckstr.164291 DarmstadtGermany Institut für Physik Universität RostockAlbert-Einstein-Str.2318059 RostockGermany Institut für Angewandte Physik Technische Universität DarmstadtSchlossgartenstr.764289 DarmstadtGermany Helmholtz Institut Jena Fröbelstieg 307743 JenaGermany Institut für Geowissenschaften Goethe-Universität Frankfurt am MainAltenhöferallee 160438 Frankfurt am MainGermany Helmholtz-Zentrum Dresden-Rossendorf Bautzner Landstr.40001328 DresdenGermany European XFEL GmbH Holzkoppel 422869 SchenefeldGermany Institut für Kernphysik Technische Universität DarmstadtSchlossgartenstr.964289 DarmstadtGermany Centre for Light-Matter Interaction School of Mathematics and PhysicsQueen’s University BelfastUniversity RoadBelfast BT71NNUnited Kingdom

We report on commissioning experiments at the high-energy,high-temperature(HHT)target area at the GSI Helmholtzzentrum für Schwerionenforschung GmbH,Darmstadt,Germany,combining for the first time intense pulses of heavy ions from the SIS18 synchrotron with high-energy laser pulses from the PHELIX laser *** demonstrate the use of X-ray diagnostic techniques based on intense laserdriven X-ray sources,which will allow probing of large samples volumetrically heated by the intense heavy-ion beams.A new target chamber as well as optical diagnostics for ion-beam characterization and fast pyrometric temperature measurements complement the experimental *** platform is designed for experiments at the future Facility for Antiproton and Ion Research in Europe GmbH(FAIR),where unprecedented ion-beam intensities will enable the generation of millimeter-sized samples under high-energy-density conditions.

关键词： heated intense extreme

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burden,stress and depression in caregivers of cirrhosis patients before and after liver transplantation

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World Journal of Transplantation 2025年第2期15卷 276-287页

作者： Adriano Virches Mariana b Claudino Maria C Miyazaki Eliane T Miyazaki Renato F Silva Rita C Silva Heitor b Farias Neide A Domingos Randolfo Santos Jr Patricia S Fucuta Department of Psychology School of Medicine of São Josédo Rio Preto(FAMERP/Faculdade de Medicina de São Josédo Rio Preto)São Josédo Rio Preto 15090-000São PauloBrazil Department of Surgery and Study Group of Liver Tumors-GETF and Liver and Small Intestine Transplantation Unit School of Medicine of São Josédo Rio Preto and Base HospitalSão Josédo Rio Preto 15090-000São PauloBrazil Department of Gastroenterology and Liver and Small Intestine Transplantation Unit School of Medicine of São Josédo Rio Preto and Base HospitalSão Josédo Rio Preto 15090-000São PauloBrazil Stricto Sensu Graduate Program in Psychology Pontifical Catholic University of Minas GeraisBelo Horizonte 32604-115Minas GeraisBrazil Stricto Sensu Graduate Program in Psychology and Health School of Medicine of São Josédo Rio PretoSão Josédo Rio Preto 15090-000São PauloBrazil Department of Medicine Faceres Medical SchoolSão Josédo Rio Preto 15090-305São PauloBrazil

bACKGROUND Family caregivers of cirrhosis patients(CPs)often experience burden,stress,and *** whether these conditions improve following the patient undergoing liver transplantation(LT)is crucial,as it would elucidate the compre-hensive benefits of the procedure and demonstrate the positive impacts not only on the patients but also on their caregivers and *** To compare the levels of burden,stress and depression among family caregivers of cirrhotic and liver transplant *** This cross-sectional observational study evaluated caregivers of CPs and LT recipients at a quaternary brazilian *** included identification cards,interview scripts,the caregiver burden scale Inventory,Lipp’s Stress Symptom Inventory,and the beck Depression Inventory-Second *** analyses involved confirmatory factor analysis and calculation of McDonald’s omega and composite *** scores were compared with the Mann-Whitney U test,with effect size as the rank-biserial correlation coefficient(r).Statistical analysis was performed with R software(Pbe at risk of overload(21.5%vs 49.4%),to be under stress(33.8%vs 36.4%)and to show symptoms of depression(15.4%vs 35.1%).Compared with LT caregivers,CP caregivers had greater median factor scores for burden(general tension,P=0.012;isolation,P=0.014;disappointment,P=0.004),depression(P=0.008),and stress(P=0.047),with small to moderate effect *** disappointment(r=0.240)and depression(r=0.225)dimensions had the largest effect *** Family caregivers of LT recipients are less likely to exhibit symptoms of burden,stress,and depression,su

关键词： Mental disorders Caregiver burden Psychological stress Depressive disorder Chronic disease Liver cirrhosis Transplant recipients Liver transplantation

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Exploring Malnutrition Risk among Infants under Five Years in Guéra Province, Chad: A Cross-Sectional Study

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Food and Nutrition Sciences 2025年第1期16卷 95-119页

作者： Nassaradine Macki Minawir Donatien Serge Mbaga Mahamat béchir bernard Sodio Alpha Seydou Yaro cole Doctorale des Sciences et des Technologies du Mali Universit des Sciences des Techniques et des Technologies de Bamako (USTTB) Bamako Mali cole Suprieure des Sciences de la Sant Siantou Institut Universitaire Siantou Yaound Cameroon Facult des Sciences de la Sant Humaine Universit de N'Djamna N'Djamna Chad Laboratoire dEntomologie-Parasitologie Facult des Sciences et Techniques (FST) Universit des Sciences des Techniques et des Technologies de Bamako (USTTB) Bamako Mali Malaria Research and Training Center Point G Facult de Mdecine et dOdontostomatologie (FMOS) Universit des Sciences des Techniques et des Technologies de Bamako (USTTB) Bamako Mali

background: Malnutrition, a serious public health concern, is influenced by various factors. Objective: The study aims to explore malnutrition issues among infants under five years old in Guéra Province. Methods: The study used a cross-sectional design and a two-stage cluster sampling method to select participants. The study population was infants aged between 0 - 24 months. Data collection was done between June 2023 and September 2024;it included anthropometric measurements, blood analyses, and interviews. Anthropometric parameters were calculated using ENA for SMART software. Statistical analyses were performed by R Studio to investigate associations between different characteristics, using logistic regression models to identify risk factors. A p-value less than 0.05 was considered significant. Results: The study included 377 infants in eight villages in Guéra Province, Chad. The sample was predominantly girls (55.3%), with a median age of 16 months. Most infants (94%) were mixed-fed, and only 6% were exclusively breastfed. We found that 7.3% of children were globally malnourished, with higher rates in boys 9.6%. A significant disparity existed between boys and girls in global acute malnutrition (GAM) rates, with boys having a higher prevalence of 17.9%. A substantial proportion of Infants were underweight, with males 27.4%. Stunting was prevalent 20.1%. Several factors were associated with malnutrition, including gender, feeding practices, infectious diseases, and socioeconomic factors. Diarrhea, malaria, limited access to drinking water, and early diet diversification were significantly associated with malnutrition. Conclusion: Targeted interventions are necessary to address these issues and improve the nutritional status of children in the Guéra province.

关键词： Malnutrition Undernutrition Overnutrition Stunting Wasting Infant

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Determination of Heavy Metal Adsorption Capacity of Water Contaminated by Metallurgical Tailings Leaching Using Carbohydrates Derived from Solanum tuberosum

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Advances in Chemical Engineering and Science 2025年第1期15卷 31-46页

作者： Walther b. Aparicio-Aragón Salomon Ttito-León Marleni Y. Valencia-Pacho School of Chemical Engineering Chemical Engineering Department Altiplano National University Puno Peru

Water contamination in areas of formal and informal polymetallic mining is a growing concern in the Peruvian highlands. At the same time, there are agricultural activities that use contaminated water from these rivers for irrigation. This could contaminate the agricultural products grown on these lands, such as potatoes. It is, therefore, necessary and a priority to determine the adsorption characteristics of these derivatives and to be able to use these natural adsorbents to decontaminate water contaminated with heavy metals.

关键词： Heavy Metals Adsorption Potato Derivatives Isotherm Polluted Water

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可降解秸秆基地膜增韧改性及其对水稻生长的影响

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林产化学与工业 2025年第1期45卷 63-71页

作者：孙恩惠陈玲范肖东彭鵾 GUEGUIM KANA E b 翟胜丞江苏省农业科学院农业资源与环境研究所农业农村部盐碱土改良与利用(滨海盐碱地)重点实验室江苏省有机固体废弃物资源化协同创新中心江苏南京210014 江苏大学农业工程学院江苏镇江212013 夸祖鲁-纳塔尔大学农业工程与科学学院斯科茨维尔3209 南京林业大学材料科学与工程学院江苏南京210037

以秸秆纤维为原料,经氯化胆碱/尿素-微生物联合预处理之后,依次通过填充不同添加量的杨木纤维、调控湿强剂组合种类以及利用自主研发的纳米木质素聚合物作表面涂层,制备改性秸秆纤维基地膜(MSFM),分析改性处理对可降解秸秆纤维基地膜力... 详细信息

以秸秆纤维为原料,经氯化胆碱/尿素-微生物联合预处理之后,依次通过填充不同添加量的杨木纤维、调控湿强剂组合种类以及利用自主研发的纳米木质素聚合物作表面涂层,制备改性秸秆纤维基地膜(MSFM),分析改性处理对可降解秸秆纤维基地膜力学性能、韧性、疏水性、降解性及水稻生长等的影响。研究结果表明:杨木纤维的填充可有效降低细小秸秆纤维流失率;优选杨木纤维与秸秆纤维质量比为4∶6,湿强剂硫酸铝(AS)添加量1.5%、阳离子分散松香胶(CDR)1.5%,纳米木质素聚合物表层涂布量2~2.5 g/m^(2)时,获得的改性秸秆纤维基地膜(MSFM)抗张指数为30.33 N·m/g、湿抗张指数9.23 N·m/g、撕裂指数5.16 mN·m^(2)/g、耐破指数2.36 kPa·m^(2)/g,应变由0.48%提高到1.13%,增幅达135.42%,且表现出优异的疏水性和湿稳定性。地膜降解试验结果表明:第9周时MSFM失重率达62%,同时盆栽试验期杂草抑制率达81.20%,且具有良好的土壤保温及水稻促生作用。生物可降解秸秆纤维地膜能够从源头减少污染物和化石资源投入,在农田土壤覆盖应用领域前景广阔。

关键词：秸秆纤维可降解地膜增韧改性力学性能杂草防控增温促生

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Knotting ligands to control metal coordination geometry

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Science China Chemistry 2025年第2期 403-404页

作者： Fabien b.L.Cougnon Department of Chemistry and Nanoscience Centre University of Jyv?skyl?

Zinc is a metal of particular importance for life [1]. It is the most abundant transition metal in biological systems after iron and contributes both structural and catalytic roles to many cellular processes. The properties of ZnⅡ, unlike those of any other first-row transition metal ions, explain its biological relevance. Due to its filled d-shell orbitals, ZnⅡis redox-stable, has a ligand-field energy stabilization of zero and, consequently, no typical coordination number and geometry.

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The microbiome's influence on obesity: mechanisms and therapeutic potential

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Science China Life Sciences 2025年第3期 657-672页

作者： Dawit Adisu Tadese James Mwangi Lei Luo Hao Zhang Xiaoshan Huang brenda b.Michira Shengwen Zhou Peter Muiruri Kamau Qiumin Lu Ren Lai Engineering Laboratory of Peptides of Chinese Academy of Sciences Key Laboratory of Bioactive Peptides of Yunnan Province KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases National Resource Center for Non-Human Primates National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility) Key Laboratory of Genetic Evolution & Animal Models Sino-African Joint Research Center and New Cornerstone Science Laboratory Kunming Institute of Zoology Chinese Academy of Sciences Kunming College of Life Sciences University of Chinese Academy of Sciences

In 2023, the World Obesity Atlas Federation concluded that more than 50% of the world's population would be overweight or obese within the next 12 years. At the heart of this epidemic lies the gut microbiota, a complex ecosystem that profoundly influences obesity-related metabolic health. Its multifaced role encompasses energy harvesting, inflammation, satiety signaling, gut barrier function, gut-brain communication, and adipose tissue homeostasis. Recognizing the complexities of the cross-talk between host physiology and gut microbiota is crucial for developing cutting-edge, microbiome-targeted therapies to address the global obesity crisis and its alarming health and economic repercussions. This narrative review analyzed the current state of knowledge, illuminating emerging research areas and their implications for leveraging gut microbial manipulations as therapeutic strategies to prevent and treat obesity and related disorders in humans. by elucidating the complex relationship between gut microflora and obesity, we aim to contribute to the growing body of knowledge underpinning this critical field, potentially paving the way for novel interventions to combat the worldwide obesity epidemic.

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Developmental stages and quality traits of giant African land snails [<i>Archachatina marginata</i>(swainson)] eggs

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Natural Science 2013年第10期5卷 1121-1126页

作者： b. Okon L. A. Ibom I. E. Ebenso A. E. bassey Department of Animal Science University of Calabar Calabar Nigeria Departrment of Animal Science University of Uyo Uyo Nigeria

Sixty sexually mature purebred black-skinned Archachatina marginata snails with weight ranging from 120.50 g to 135.70 g were used to generate eggs in this study. The eggs collected were incubated in a chamber filled with loamy soil for appropriate observation and assessment (cracking at four days intervals to check snailet’s development). Results obtained from the study showed that at laying snail egg weights ranged from 1.54 - 2.45 g (mean of 2.00 g). The egg lengths and widths ranged from 13.50 - 16.90 mm (mean of 15.20 mm) and 10.00 - 12.70 mm (mean of 11.40 mm) respectively. The results also revealed that at laying (day one) the egg content was translucent or clear (blank) when observed with light from a powered microscope. Observation of eggs on day four showed the formation of embryo with a semi-transparent cup attached to a long string body. On day 12, some specific organs of the snailet had developed, and there was a reduction in the liquid content. On day 28, the snailet was fully formed, but the shell still contained very small volume of liquid. The snailet hatched on day 29.

关键词： Development Quality Traits Eggs Snail Stages

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