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Long-term trends in the abundance and breeding performance in Adélie penguins:the Argentine Ecosystem Monitoring Program

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Advances in Polar Science 2024年第1期35卷 132-140页

作者： Mariana A.JUÁRES AnahíM.SILVESTRO brenda c.alfonso M.Mercedes SANTOS Departamento Biología de Predadores Tope Instituto Antártico Argentino(IAA)Buenos Aires B1650CSPArgentina consejo Nacional de Investigaciones científicas y Técnicas(cONIcET) Buenos Aires C1425FQBArgentina Laboratorios Anexos Facultad de Ciencias Naturales y MuseoUniversidad Nacional de La PlataLa Plata B1904AMAArgentina INEDES(cONIcET-UNLu) Buenos Aires C1425FQBArgentina Facultad de ciencias Naturales y Museo Universidad Nacional de La PlataLa Plata B1900FWAArgentina Instituto Antártico Argentino(IAA) Buenos Aires B1650CSPArgentina

In this work,we report long-term trends in the abundance and breeding performance of Adélie penguins(Pygoscelis adeliae)nesting in three Antarctic colonies(i.e.,at Martin Point,South Orkneys Islands;Stranger Point/cabo Funes,South Shetland Islands;and Esperanza/Hope Bay in the Antarctic Peninsula)from 1995/96 to 2022/*** yearly count data of breeding groups selected,we observed a decline in the number of breeding pairs and chicks in crèche at all colonies ***,the magnitude of change was higher at Stranger Point than that in the remaining ***,the index of breeding success,which was calculated as the ratio of chicks in crèche to breeding pairs,exhibited no apparent trend throughout the study ***,it displayed greater variability at Martin Point compared to the other two colonies under *** the number of chicks in crèche of Adélie penguins showed a declining pattern,the average breeding performance was similar to that reported in gentoo penguin colonies,specifically,those undergoing a population increase(even in sympatric colonies facing similar local conditions).consequently,it is plausible to assume a reduction of the over-winter survival as a likely cause of the declining trend observed,at least in the Stranger Point and Esperanza ***,we cannot rule out local effects during the breeding season affecting the Adélie population of Martin Point.

关键词： long-term monitoring Adélie penguin breeding pairs chicks crèched breeding success population trends

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Loggerhead Sea Turtles Hand-Reared in captivity: Isotopic Insights into Their Inherent Dietary Variation

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Open Journal of Ecology 2024年第5期14卷 435-454页

作者： brenda Natasha Mejía-Guarnizo carlos Julio Polo-Silva Guiomar Aminta Jauregui-Romero Antonio Delgado-Huertas centro de Investigaciones en ciencias Marinas (cIcIMAR-IPN) La Paz M&#233xico Marine Biology Program Faculty of Natural Sciences and Engineering Jorge Tadeo Lozano University Santa Marta Colombia Sharky Management and consulting Oldsmar FL USA Programa de conservació n de Tortugas y Mam&#237feros Marinos (ProCTMM) Santa Marta Colombia Instituto Andaluz de ciencias de la Tierra (cSIc-UGR) Armilla Spain

Stable isotope analysis is a widely used method for gathering ecological insights into the diet and feeding habitats of various species. While captive studies often limit lethal sampling and differ from wild conditions, they offer valuable insights into inherent isotopic variations among individuals, which are often assumed to reflect differences between natural populations. In the Sea Turtle conservation Program, loggerhead turtle hatchlings from different nests were fed. Necropsies were conducted on turtles that died during this period, obtaining bone fragments for analysis. We evaluated the isotopic variation of carbon (δ13c) and nitrogen (δ15N) in bone tissue across six turtle nests (n = 66 samples) and assessed differences in Straight carapace Length (ScL, n = 71 samples). Using SIBER and nicheROVER in R, we calculated niche width and overlap, while the simmr package determined primary prey assimilation. Despite feeding the hatchlings the same prey, we observed variations in nitrogen isotope assimilation between nests. Nests 4 and 6 had a niche width >1.8‰, indicating consistent consumption frequencies across all prey and >70% niche overlap with other nests. In contrast, nests 1 and 2 showed a narrower niche width (Mugil sp. constituted the primary diet component (>40%) across all groups. This study demonstrates how factors like competition or prey preference can influence the assimilation of diet, even when the source remains constant (inherent variation).

关键词： Stable Isotopes caretta caretta Head-Starting Nests Straight carapace Length

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Autoantibodies against beta cells to predict early insulin requirements in pediatric patients with clinically diagnosed type 2 diabetes

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World Journal of Diabetes 2024年第8期15卷 1717-1725页

作者： Jorge M Molina Patricia G Medina Rita A Gomez Julia R Herrera Nancy L Martínez brenda Hernández Yesenia García Department of Endocrinology Children’s Hospital Federico GomezMexico 06720Mexico National Medical center"Siglo XXI" UMAE Hosp EspecialidadesUnidad Invest Med Epidemiol ClinMexican Social Security InstituteMexico 06720Mexico Research Division UMAE Hospital de EspecialidadesCentro Médico Nacional Siglo XXIMexican Institute of Social SecurityMexico 06720Mexico Epidemiology Research Unit in Endocrinology and Nutrition Federico Gómez Children’s HospitalMexico 06720Mexico Department of Endocrinology Comprehensive Health Unit for Trans PersonsMexico 11340Mexico

BAcKGROUND Autoimmunity has emerged as a probable disease modifier in patients with clinically diagnosed type 2 diabetes mellitus(T2DM),that is,patients who have insulin resistance,obesity,and other cardiovascular risk factors,suggesting that the presence of glutamic acid decarboxylase(anti-GAD65),islet antigen 2(anti-IA2),and zinc transporter 8(anti-Zn8T)antibodies could have deleterious effects on beta cell function,causing failure and earlier requirement for insulin *** To evaluate anti-GAD65,anti-IA2 and anti-Zn8T as predictors of early insulin requirement in adolescents with a clinical diagnosis of *** This was a case–control study in patients with clinically diagnosed with T2DM(68 cases and 64 controls with and without early insulin dependence respectively),male and female,aged 12–18 ***,blood pressure,glucose,insulin,c-peptide,glycated hemoglobin A1c,and lipid profiles were *** was used to measure anti-GAD65,anti-IA2,and anti-Zn8T *** statistics,Pearson'sχ2 test,Student's t test,and logistic regression was performed.Pconsidered statistically *** There were 132 patients(53.8%female),with a mean age was 15.9±1.3 years,and there was a disease evolution time of 4.49±0.88 *** presence of anti-GAD65,anti-IA2,and anti-Zn8T positivity was found in 29.5%,18.2%,and 15.9%,*** the groups by early or no insulin dependence showed that the group with insulin had a higher frequency of antibody positivity:anti-GAD65 odds ratio(OR):2.42(1.112–5.303,P=0.026);anti-IA2:OR:1.55(0.859–2.818,P=0.105);and anti-Zn8T:OR:7.32(2.039–26.279,P=0.002).cONcLUSION Anti-GAD65 positivity was high in our ***-GAD65 and anti-Zn8T positivity showed a significantly depleted beta cell reserve phenotype,leading to an increased risk of early insulin dependence.

关键词： Diabetes Obesity Adolescents Autoimmunity Beta cell Insulin requirements

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3D printing of ABS *** of processing and effects of multi-wall and single-wall carbon nanotubes on thermal,mechanical and electrical properties

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Journal of Materials Science & Technology 2022年第26期121卷 52-66页

作者： Sithiprumnea Dul brenda J.Alonso Gutierrez Alessandro Pegoretti Jaime Alvarez-Quintana Luca Fambri Department of Industrial Engineering and INSTM Research Unit University of TrentoTrento 38123Italy centro de Investigación en Materiales Avanzados S.C.Unidad MonterreyApodaca 66600Mexico Facultad de Ingeniería Mecánica y Eléctrica Universidad Autónoma de Nuevo LeónAvenida Universidad s/nCiudad UniversitariaSan Nicolás de los Garza 66451México

The following paper reports on a comparative study of the effects of two types of carbon nanotubes,namely multiwall(MWcNT)and single-wall(SWcNT)carbon nanotube,on the properties of 3D-printed parts produced with acrylonitrile-butadiene-styrene(ABS)nanocomposites with various cNT loadings of5-10 wt.%.Quasi-static tensile properties and Vicat softening temperature of 3D-printed parts were enhanced with the increasing cNT *** highest enhancement in tensile properties was observed for the ABS/cNT nanocomposites at 10 wt.%filler loading.3D-printed ABS/SWcNT composites showed higher tensile modulus,better creep stability and higher Vicat ***,the strength of ABS/SWcNT 3D samples is relatively lower than that of ABS/*** addition,3D-printed parts exhibited anisotropic electrical conductive behaviour,which has a conductivity of through-layer of about2-3 orders of magnitude higher than *** highest conductivity of 3D-printed samples reached25.2 S/m,and 9.3 S/m for ABS/MWcNT and ABS/SWcNT composites at 10 wt.%,*** results obtained,*** successful fuse filament fabrication and the consequent electromechanical properties,confirm that these 3D printable nanocomposite could be properly utilized for the production,and application up to about 90°c,of thermoelectric devices and/or resistors for flexible circuits.

关键词： Fuse filament fabrication conductive polymers Nanocomposites Mechanical properties creep behavior Resistivity

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Beliefs and Practices Regarding Spirituality as a Healthcare Strategy

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Open Journal of Preventive Medicine 2022年第3期12卷 59-72页

作者： Monique S. White clifton c. Addison brenda W. Jenkins Department of Public Policy and Administration Jackson State University Jackson MS USA Jackson Heart Study Graduate Training and Education center Jackson State University Jackson MS USA college of Health Sciences Jackson State University Jackson MS USA School of Public Health Department of Epidemiology and Biostatistics Jackson State University Jackson MS USA

Objective: This study examined the perceptions and practices of medical personnel regarding the spirituality in the treatment management plan of their patients. Methods: A spirituality survey was administered to doctors and nurses, soliciting responses about their beliefs and willingness to include spirituality practices in treating patients within their facility. Respondents were asked to give their views on daily practices regarding the use of spirituality in patient care and patient response to treatment. Results: The doctors’ responses suggest that they believe that solutions to medical problems, patient recovery, and coping are related to mind and body stress issues that surgery and drugs may not necessarily cure. The emphasis on self-care for some of these medical problems can put the patient back in control and eliminate the use of excessive drugs in the treatment process. chances for health and well being of patients are improved if good medical practices are combined with a strong mental and psychological disposition to provide a vital foundation for directly confronting diseases. conclusion: Spiritual engagement helps to support a psychological outlook that is necessary for fighting diseases and coping adequately with life’s tragedies. This approach provides a well-balanced attack on disease and increases the patient’s chances of coping and surviving.

关键词： Mississippi Spirituality Healthcare Providers Illness Beliefs

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Insulin:A connection between pancreaticβcells and the hypothalamus

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World Journal of Diabetes 2023年第2期14卷 76-91页

作者： brenda De la cruz concepción Yaccil Adilene Flores cortez Martha Isela Barragán Bonilla Juan Miguel Mendoza Bello Monica Espinoza Rojo Molecular and Genomic Biology Laboratory Faculty of Chemical-Biological SciencesAutonomous University of GuerreroChilpancingo 39070GuerreroMexico

Insulin is a hormone secreted by pancreaticβ*** concentration of glucose in circulation is proportional to the secretion of insulin by these *** target cells,insulin binds to its receptors and activates phosphatidylinositol-3-kinase/protein kinase B,inducing different mechanisms depending on the cell *** the liver it activates the synthesis of glycogen,in adipose tissue and muscle it allows the capture of glucose,and in the hypothalamus,it regulates thermogenesis and *** in insulin function[insulin resistance(IR)]are related to the development of neurodegenerative diseases in obese ***,in obesity and diabetes,its role as an anorexigenic hormone in the hypothalamus is diminished during ***,hyperphagia prevails,which aggravates hyperglycemia and IR further,becoming a vicious circle in which the patient cannot regulate their need to *** calorie intake induces an increase in reactive oxygen species,overcoming cellular antioxidant defenses(oxidative stress).Reactive oxygen species activate stress-sensitive kinases,such as c-Jun Nterminal kinase and p38 mitogen-activated protein kinase,that induce phosphorylation in serine residues in the insulin receptor,which blocks the insulin signaling pathway,continuing the mechanism of *** brain and pancreas are organs mainly affected by oxidative *** use of drugs that regulate food intake and improve glucose metabolism is the conventional therapy to improve the quality of life of these ***,the use of antioxidants that regulate oxidative stress has given good results because they reduce oxidative stress and inflammatory processes,and they also have fewer side effects than synthetic drugs.

关键词： Insulin Pancreas Hypothalamus Hyperphagia Hyperglycemia Stress

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Metagenetics of fairy rings reveals complex and variable soil fungal communities

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Pedosphere 2023年第4期33卷 567-578页

作者： Siyu XU Ke DONG Sangseob LEE Matthew chidozie OGWU Sainbileg UNDRAKHBOLD Dharmesh SINGH Dagvatseren ARIUNZAYA Orsoo ENKHMANDAL Laura A.SPENcE Anarmaa SHARKHUU brenda B.cASPER Jonathan M.ADAMS Bazartseren BOLDGIV college of Biotechnology Dalian Polytechnic UniversityDalian 116034(China) School of Geographic and Oceanographic Sciences Nanjing UniversityNanjing 210008(China) Department of Life Sciences Kyonggi UniversitySuwon 443-760(Korea) School of Bioscience and Veterinary Medicine University of CamerinoCamerino 62032Marche-Floristic Research Center of the ApenninesGran Sasso and Monti della Laga National ParkSan ColomboBariscianoL'Aquila 67021(Italy) Laboratory of Ecological and Evolutionary Synthesis Department of BiologySchool of Arts and SciencesNational University of MongoliaUlaanbaatar 14201(Mongolia) School of Biological Sciences Seoul National University1 Gwanak-roGwanak-guSeoul 08826(Korea) Sterling college Sterling DriveCraftsbury Common VT 05827(USA) Department of Biology University of PennsylvaniaPhiladelphia PA 19104(USA)

Although fairy rings are widely observed,little is known about the community processes associated with ***,we studied fairy rings in a natural grassland in northern Mongolia by sampling soils outside(future stage),directly under(present stage),and within(past stage)the rings,to represent different time stages during the expansion of fairy *** DNA was extracted for amplicon sequencing of the fungal ITS1 *** present stage had reduced fungal diversity and different fungal communities toward the other *** strikingly,there was an increase in the pathogenic fungus Gibberella baccata in the present stage of most rings and the saprotrophic fairy ring fungus Lepista luscina in ***,no mushrooms of Lepista had been recorded from any of these rings during several years of *** fairy ring fungi were not found in the present stage of every ring,even in some known rings to have previously displayed mushrooms of such *** is possible that these fungi occurred or were more abundant at the unsampled leading edge of the *** increase in *** is intriguing,but its importance,if any,is *** is also unclear whether consortia of fungi or other microbes might be present in these *** absence or low abundance of the previously reported fairy ring fungal species suggests that their presence is transient,with rapid replacement by other *** differences in soil parameters were found between the fairy ring stages,except for *** is a need for broader sampling,including analysis of non-fungal biota,to understand the functional diversity of fairy ring fungi and the consequences for plant communities.

关键词： community process functional guilds Gibberella baccata grassland ITS1 region network analysis soil fungus

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Brunner and Suddarth's Textbook of Medical-Surgical Nursing (Two Volume Set), Twelfth Edition 12th Edition

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2010年

作者： Suzanne c. Smeltzer brenda Bare Janice L. Hinkle Kerry H. cheever

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Hematological parameters of a Neotropical wild frog population,with a phylogenetic perspective on blood cell composition in Anura

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current Zoology 2022年第3期68卷 361-369页

作者： Lilian FRANcO-BELUSSI Diogo B.PROVETE Taynara R.F.LEÃO Mayara S.SIQUEIRA Bruno S.L.VALVERDE brenda O.MARTINS classius DE OLIVEIRA carlos Eurico FERNANDES Instituto de Biociências Universidade Federal de Mato Grosso do SulCampo GrandeMato Grosso do Sul 79002970Brazil Gothenburg Global Biodiversity centre GöteborgBox 100S 40530Sweden Graduate Program in Biodiversity.Instituto de Biociências Letras e Ciências ExatasUniversidade Estadual PaulistaSão Josédo Rio PretoSão PauloBrazil Graduate Program in Animal Biology.Instituto de Biociências Universidade Federal de Mato Grosso do SulCampo GrandeMato Grosso do SulBrazil Departamento de Biologia.Instituto de Biociências Letras e Ciências ExatasSão Josédo Rio PretoUniversidade Estadual PaulistaBrazil

Hematological parameters can provide key information to an animal health ***,this information is usually hard to ***,we described the hematological parameters of Leptodactylus podicipinus in the Brazilian *** measured red blood cell morphometrics,erythrogram,and *** also tested for phylogenetic signal in the erythrogram and leukogram of 48 frog species from 15 families,testing if body size explains their *** were the most abundant leukocytes(>60%)in ***,followed by neutrophils(∼10%).Given that *** is an abundant and widely distributed species in central Brazil,knowing its hematological pattern can help establish a baseline and improve its use as a bioindicator of environmental *** corpuscular hemoglobin and value contributed more to the phylomorphospace of erythrogram,in which Leptodactylus *** Hypsiboas raniceps had lower values of these variables,whereas Bufotes viridis and Hyla arborea had high *** phylogenetic signal was spread throughout the dimensions of the leukogram *** variables that most contributed to it were total leukocytes counts,lymphocytes,and *** also found a moderate phylogenetic signal for both the erythrogram and ***,body size accounted for a low proportion of variation in both the leukogram(4.7%)and erythrogram(0.57%).By applying phylogenetic comparative methods to hematological parameters,our results add a new perspective on the evolution of blood cell physiology in frogs.

关键词： erythrogram leukogram conservation physiology macroevolution population monitoring programs

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Body temperature,activity patterns and hunting in free-living cheetah:biologging reveals new insights

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Integrative Zoology 2019年第1期14卷 30-47页

作者： Robyn S.HETEM Duncan MITcHELL brenda A.DE WITT Linda G.FIcK Shane K.MALONEY Leith c.R.MEYER and Andrea FULLER School of Animal Plant and Environmental SciencesFaculty of SciencesUniversity of the WitwatersrandJohannesburgSouth Africa Brain Function Research Group School of PhysiologyFaculty of Health SciencesUniversity of the Witwatersrand Medical SchoolParktownJohannesburgSouth Africa School of Human Sciences University of Western AustraliaPerthAustralia Department of Paraclinical Science Faculty of Veterinary ScienceUniversity of PretoriaSouth Africa

As one of the few felids that is predominantly diurnal,cheetahs(Acinonyx jubatus)can be exposed to high heat loads in their natural *** is known about long-term patterns of body temperature and activity(including hunting)in cheetahs because long-term concurrent measurements of body temperature and activity have never been reported for cheetahs,or,indeed,for any free-living *** report here body temperature and locomo-tor activity measured with implanted data loggers over 7 months in 5 free-living cheetahs in *** tem-perature ranged from a maximum of 39°c in summer to−2°c in *** had higher(~0.4°c)max-imum 24-h body temperatures,later acrophase(~1 h),with larger fluctuations in the range of the 24-h body temperature rhythm(approximately 0.4°c)during a hot-dry period than during a cool-dry period,but main-tained homeothermy irrespective of the climatic *** ambient temperatures increased,the cheetahs shifted from a diurnal to a crepuscular activity pattern,with reduced activity between 900 and 1500 hours and increased nocturnal *** timing of hunts followed the general pattern of activity;the cheetahs hunted when they were on the *** hunted if an opportunity presented itself;on occasion they hunted in the midday heat or in total darkness(new moon).Biologging revealed insights into cheetah biology that are not ac-cessible by traditional observer-based techniques.

关键词： Acinonyx jubatus heat stress nocturnal intraguild predators moonlight

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