检索结果-南通市图书馆

Predator-induced physiological responses in tadpoles challenged with herbicide pollution

Current Zoology 2013年第4期59卷 475-484页

作者： Pablo BURRACO lidia jimenez duarte Ivan GOMEZ-MESTRE Ecology Evolution and Development Group Estaci6n Biol6gica de Dofiana (EBD-CSIC) E-41092 Seville Spain Av. Las Ciencias 4 2℃ 41020 Sevilla Spain

Predators induce plastic responses in multiple prey taxa, ranging from morphological to behavioral or physiological changes. In amphibians, tadpoles activate plastic responses to reduce predation risk by reducing their activity rate and altering their morphology, specifically tail depth and pigmentation. Furthermore, there is now evidence that tadpoles＇ defenses are modi- fied when predators combine with other stressful factors such as pollutants or competitors, but our knowledge on the physiologi- cal responses underlying these responses is still scarce. Here we study physiological responses in Pelobates cultripes tadpoles exposed to a natural predator （larvae of the aquatic beetle Dytiscus circumflexus）, non-lethal concentrations of herbicide （gly- phosate, 0.5 mg/L and 1.0 mg/L） or both factors combined. We measured corticosterone levels, standard metabolic rate, oxidative damage （TBARS） and activity of antioxidant enzymes, and immune response （via leukocyte count）. Tadpoles reduced their corti- costerone concentration by ca. 24% in the presence of predator cues, whereas corticosterone did not change in the presence of glyphosate. Two enzymes involved in antioxidant response also decreased in the presence of predators （14.7% and 13.2% respec- tively） but not to glyphosate. Herbicide, however, increased the number of neutrophils and reduced that of lymphocytes, and had an interaction effect with predator presence. Standard metabolic rate did not vary across treatments in our experiment. Thus we show a marked physiological response to the presence of predators but little evidence for interaction between predators and low levels of herbicide. Multiple assessment of the physiological state of animals is important to understand the basis and conse- quences ofphenotypic plasticity

关键词： Inducible defenses Physiological responses Corticosterone Glyphosate Spadefoot toads Oxidative stress

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A prototype for on-site generation of chlorinated disinfectant for use in rural aqueducts

引用

Water Science and Engineering 2024年第1期17卷 33-40页

作者： Diana Marcela Cuesta Parra Felipe Correa Mahecha Andrés Felipe Rubio Pinzon Davidcamilo Ramirez Bustos Leonel Alveyro Teran Llorente Miguel Fernando jimenez jimenez Chemical and Environmental Engineering Department Fundacion Universidad de AmericaBogota 117111Colombia Chemical Engineering Department Fundacion Universidad de AmericaBogota 117111Colombia Mecanical Engineering Department Fundacion Universidad de AmericaBogota 117111Colombia

Sodium hypochlorite has significant potential as a sanitation solution in hard-to-reach *** studies have investigated the optimal electrolysis parameters for its production with volumes greater than 1o *** study evaluated sodium hypochlorite production through electrolysis in a 22-L prototype and identified the optimal operating *** were performed using graphite electrodes with areas of 68.4 cm^(2) at the laboratory scale and 1865.0 cm^(2) at the prototype scale.A design for experiments with different operating times,chloride concentrations,and electric current intensities was *** optimal operating time,sodium chloride concentration,and current intensity at the laboratory scale were 120 min,150 g of chloride per liter,and 3 A,respectively,leading to the production of 5.02 g/L of the disinfectant with an energy efficiency of 12.21 mg of Cl_(2) per *** the prototype scale,the maximum sodium hypochlorite concentration of 3.99 g of chloride per liter was achieved with an operating time of 120 min,a sodium chloride concentration of 100 g of chloride per liter,and a current intensity of 70 A,reaching an energy efficiency of 42.56 mg of Cl_(2) per *** addition,this study evaluated the influences of the chloride concentration,current intensity,and operating time on the production of sodium hypochlorite at the two scales,and formulated the equations showing the trends of sodium hypochlorite production and energy efficiency in the electrochemical *** 22-L prototype model for production of this oxidizing substance is promising for disinfection of large volumes of water in areas that are difficult to access.

关键词： Disinfection Electrolysis Energy efficiency Optimization Sodium hypochlorite

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Use of oilseed crops biomass for heavy metal treatment in water

引用

Oil Crop Science 2024年第3期9卷 177-186页

作者： Carlos Pena-Guzman Angela Otalvaro-Alvarez Tatiana jimenez-Ariza Environmental and Sanitation Engineering Program Faculty of EngineeringUniversidad de La SalleBogota111711Colombia Chemical Enineering Program Facultuy of EngineeringUniversidad de La SalleBogota111711Colombia Food Engineering Program Faculty of EngineeringUniversidad de La SalleBogota111711Colombia

The treatment of heavy metals in water is of high importance worldwide,and different treatment types have been *** use of plant material is becoming more and more important,and oilseed crops biomass have been investigated in terms of phytoremediation and biosorption *** article is a review of the literature reporting the applications in 10 different plants and evaluating the removal efficiencies for 12 metals,including the findings of 81 *** olifera and Helianthus annuus are the most studied plants,whereas Cu(21.9%),Cd(18.5%),and Pb(19.9%)are the most studied *** a result,it was found that more than 90%of Pb,Cu,Cd,Fe,Zn,Ni,Cr,Sr and Mn showed removals in their *** the same time,the variables most related to the efficiency of metal removal are pH,temperature,and contact *** article includes a review of the biosorption isotherms used in the different studies.

关键词： Oilseed crops Phytoremediation Biosorption Heavy metals

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CFD simulation of pumping ventilation in a three-story isolated building with internal partitioning:Effects of partition widths,heights and locations

引用

Building Simulation 2024年第2期17卷 267-284页

作者： Huai-Yu Zhong Jie Sun Chao Lin Song-Heng Wu Jin Shang Hideki Kikumoto Fu-Ping Qian Carlos jimenez-Bescos Fu-Yun Zhao School of Energy and Environment Anhui University of TechnologyMa-An-ShanAnhui Province243002China State Key Laboratory of Green Building in Western China Xi’an University of Architecture&TechnologyXi’anShaanxi ProvinceChina School of Power and Mechanical Engineering Wuhan UniversityWuhanHubei Province430072China Institute of Industrial Science The University of Tokyo4-6-1 KomabaMeguro-kuTokyo153-8505Japan School of Built and Natural Environment University of DerbyDerbyUK

Pumping ventilation(PV),a special single-sided ventilation(SSV),has been certified as an effective strategy to improve the air exchange rate of ***,most studies targeted on the single space,and few studies have been focused on the effect of internal partitioning on *** paper aims to evaluate the ventilation performance of PV influenced by different configurations of internal *** fluid dynamics(CFD)simulation was used to predict the flow fields and ventilation *** width(w/H),height(h/H)and location(d/H)are the three main internal partition parameters considered in this *** simulation results showed that the total,mean and fluctuating ventilation rates all decrease with wider internal *** normalized total ventilation rate decreases by 7.6%when w/H is increased from 50%to 75%.However,the reduction rate is only 0.23%between w/H=0 and 25%,and only 0.61%between w/H=25%and 50%.The ventilation rate is hardly reduced by increasing the partition width when w/H50%.Increasing the partition height will reduce the mean ventilation rate but promote the fluctuating and total ventilation rate in some *** increase of total ventilation rate by 1.4%is observed from h/H=50%to 75%.The ventilation rate is larger when the internal partition is attached to the leeward or windward *** total,mean and fluctuating ventilation rates for d/H=50%are relatively higher than d/H=0 by 1.5%,3.1%and 0.8%,*** the internal partition should be mounted attached to the windward wall so as to obtain the greatest pumping ventilation *** periodicity of pumping flow oscillation and pumping frequency are independent of the partition *** peak power of pumping flow is the lowest for the widest internal partition and is negatively affected by the partition height,but it generally has a positive correlation with the distance between the partition and leeward wa

关键词： pumping ventilation single-sided ventilation internal partitioning periodic oscillation ventilation rate

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fungi Associated with Sand and Plants from Marine Coastlines: Potential Relevance for Human Health

引用

Advances in Microbiology 2024年第6期14卷 303-316页

作者： Marina Carrasco-Acosta Pilar Garcia-jimenez Department of Biology Universidad de Las Palmas de Gran Canaria Campus de Tafira Las Palmas Spain

The fungal community associated with beach sand and plants located along marine coasts are an under-studied area of research despite its potential relevance to human health. In this study, we isolated and identified the cultivable mycobiota associated with sand and plants collected along the coast of Gran Canaria (Spain) using culture-dependent and -independent methods. Clinically relevant species belonging to Cryptococcus spp. and related genera such as Naganishia and Papilotrema were isolated and identified from shoreline plants. Moreover, Candida tropicalis was isolated from beach sand, and Aspergillus fumigatus and Aspergillus terreus strains were associated with both types of samples (i.e., plants and beach sand). We conclude that beach sand and shoreline plants are potential reservoirs of fungi of high clinical interest. We recommend including beach sand and plants from the environment when assessing the quality of marine coastal systems. Our results open a framework for studying the natural marine environment and its role in the epidemiology of infectious diseases in order to more accurately manage public health.

关键词： Sand Beach Shoreline Plants Reservoir of Pathogenic Fungi Cryptococcus spp. Aspergillus spp.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare dentin defects:Understanding the pathophysiological mechanisms of COLXVA1 mutations

引用

Genes & Diseases 2024年第5期11卷 1-5页

作者： Isaac Maximiliano Bugueno Tristan Rey Alexandra jimenez-Armijo Marzena Kawczynski Naji Kharouf Marie-Cecile Maniere Yann Herault Agnes Bloch-Zupan Virginie HaushalterLaugel Institute of Genetics and Molecular and Cellular Biology(IGBMC) CNRS-UMR7104INSERM U1258Universitede StrasbourgIllkirch 67400France Faculty of Dentistry Universitede StrasbourgStrasbourg 67000France Institute of Advanced Studies(USIAS) Universitede StrasbourgStrasbourg 67045France Reference Center for Rare Oral and Dental Diseases(CRMR-O-Rares) Oral Medicine and Surgery DepartmentHopitaux Universitaires de Strasbourg(HUS)Strasbourg 67000France Rare Diseases Health Network“TETE COU”&European Reference Network ERN CRANIO Strasbourg 67000France “Institut de Genetique Medicale d’Alsace” Laboratory of Genetic DiagnosticHopitaux Universitaires de Strasbourg(HUS)Strasbourg 67000France Biomaterials and Bioengineering Laboratory Inserm UMR_S 1121Strasbourg 67000France Orofacial Development and Regeneration Faculty of MedicineInstitute of Oral BiologyCentre of Dental MedicineUniversity of ZurichZurich 8032Switzerland

Dentin is a mineralized tissue with a chemical composition similar to bone but with a higher mineralized density and *** constitutes the central structure of the tooth between the internal pulp and external enamel toward the oral cavity or cementum toward the underlying *** dentin defects occur in a variety of rare genetic *** can manifest as“isolated”occurrences such as in dentinogenesis imperfecta(DI)or dentin dysplasia(DD)or can be associated with other symptoms in diseases such as osteogenesis imperfecta,Goldblatt syndrome,microcephalic osteodysplastic primordial dwarfism type Ⅱ,among others.

关键词： diseases den rigidity

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Risk of hepatitis B virus reactivation in cancer patients undergoing treatment with tyrosine kinase-inhibitors

引用

World Journal of Gastroenterology 2024年第24期30卷 3052-3058页

作者： Bansi P Savaliya Ramin Shekouhi Fatima Mubarak Harsheen K Manaise Paola Berrios jimenez Gabrielle Kowkabany Reed A Popp Kyle Popp Emmanuel Gabriel Department of Surgery Medical Academy Named after SI Georgievsky of Vernadsky Crimean Federal UniversitySimferopol 295015CrimeaRussia Division of Plastic and Reconstructive Surgery Department of SurgeryUniversity of FloridaGainesvilleFL 32608United States Department of Surgery Aga Khan UniversityKarachi 74800SindhPakistan Department of Surgery Government Medical College and HospitalChandigarh 160030PunjabIndia Department of Surgery University of Puerto Rico School of MedicineSan Juan 00921Puerto Rico Department of Chemical and Biological Engineering University of AlabamaTuscaloosaAL 35487United States Department of Surgery University of Florida College of MedicineGainesvilleFL 32610United States Department of Surgery Florida State UniversityTallahasseeFL 32306United States Department of Surgery Mayo ClinicJacksonvilleFL 32224United States

This editorial commented on an article in the World Journal of Gastroenterology titled“Risks of Reactivation of Hepatitis B Virus in Oncological Patients Using Tyrosine Kinase-Inhibitors:Case Report and Literature Analysis”by Colapietro et *** this editorial,we focused on providing a more comprehensive exploration of hepatitis B virus reactivation(HBVr)associated with the usage of tyrosine kinase inhibitors(TKIs).It includes insights into the mechanisms underlying HBV reactivation,the temporal relationship between TKIs and HBV reactivation,and preventive *** aim is to understand the need for nucleos(t)ide analogs(NAT)and serial blood tests for early recognition of reactivation and acute liver injury,along with management *** are considered to be an intermediate(1%-10%)of *** guidelines stipulate that patients receiving therapy with high or moderate risks of reactivation or recent cancer diagnosis must have at least tested hepatitis B surface antigen,anti-hepatitis B core antigen(HBc),and anti-hepatitis B surface ***-HBc screening in highly endemic areas means people with negative tests should be vaccinated against *** or nucleotide analogs(NAs)like entecavir(ETV),tenofovir disoproxil fumarate(TDF),and tenofovir alafenamide(TAF)form the basis of HBV reactivation prophylaxis and treatment during ***,lamivudine,telbivudine,and adefovir are generally discouraged due to their reduced antiviral efficacy and higher risk of fostering drug-resistant viral ***,these less effective NAs may still be utilized in cases where ETV,TDF,and TAF are not feasible treatment options.

关键词： Hepatitis B virus Reactivation Chronic hepatitis B Tyrosine-kinase inhibitor Immunomodulators Immunosuppressant Nucleoside analogue Hemato-oncology

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Systemic Inflammation Response Index and weight loss as prognostic factors in metastatic pancreatic cancer: A concept study from the PANTHEIA-SEOM trial

引用

World Journal of Gastrointestinal Oncology 2024年第2期16卷 386-397页

作者： Vilma Pacheco-Barcia Sara Custodio-Cabello Fatima Carrasco-Valero Magda Palka-Kotlowska Axel Mariño-Mendez Alberto Carmona-Bayonas Javier Gallego A J Muñoz Martín Paula jimenez-Fonseca Luis Cabezon-Gutierrez Department of Medical Oncology Hospital Universitario de TorrejonMadrid 28850Spain Department of Internal Medicine Hospital Universitario de TorrejonMadrid 28850Spain Department of Medical Oncology Hospital Universitario Central de AsturiasOviedo 33011Spain Department of Medical Oncology Hospital Universitario Morales MeseguerUniversity of MurciaMurcia 30001Spain Department of Medical Oncology Hospital General Universitario de ElcheElche 03202Spain Department of Medical Oncology Hospital General Universitario Gregorio MarañónUniversidad Complutense MadridMadrid 28007Spain Universidad Francisco de Vitoria Madrid 28223Spain

BACKGROUND The prognostic value of the Systemic Inflammation Response Index(SIRI)in advanced pancreatic cancer is recognized,but its correlation with patients´nutritional status and outcomes remains *** To study the prognostic significance of SIRI and weight loss in metastatic pancreatic *** The PANTHEIA-Spanish Society of Medical Oncology(SEOM)study is a multicentric(16 Spanish hospitals),observational,longitudinal,non-interventional initiative,promoted by the SEOM Real World-Evidence work *** pilot study sought to analyze the association between weight loss and inflammatory status as defined by *** cohort stems from a proof-of-concept pilot study conducted at one of the coordinating *** with pathologically confirmed metastatic pancreatic adenocarcinoma,treated from January 2020 to January 2023,were *** index was calculated using the product of neutrophil and monocyte counts,divided by lymphocyte counts,obtained within 15 days before initiation *** study evaluated associations between overall survival(OS),SIRI and weight *** A total of 50 patients were included.66%of these patients were male and the median age was 66 *** sites:36%liver,12%peritoneal carcinomatosis,10%lung,and 42%multiple *** the first line palliative chemotherapy treatments:50%received gemcitabine plus nab-paclitaxel;28%,modified fluorouracil,leucovorin,irinotecan and oxaliplatin,and 16%were administered gemcitabine.42%had a weight loss>5%in the three months(mo)preceding diagnosis.21 patients with a SIRI≥2.3×10^(3)/L exhibited a trend towards a lower median OS compared to those with a SIRI5%weight loss before diagnosis,the median OS was 6 mo,in contrast to 19 mo for those who did not experience such weight loss(P=0.003).Patients with a weight loss>5%showed higher SIRI *** difference was statistically significant(P<0.000).For pat

关键词： Pancreatic cancer Nutrition Prognostic factor Inflammation Advanced cancer Systemic inflammatory response index Weight loss

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Distribution and Relation of Primes with Tesla Numbers 3, 6, and 9

引用

Journal of Applied Mathematics and Physics 2024年第4期12卷 1021-1027页

作者： Javier Mendoza-Navarrete Huetzin Perez Ismael Ojeda Victor Verdugo Gabriel Luna Sandoval Ricardo jimenez Garcia Jaime Alvarez Departametno de Matemá ticas CBTis 256 DGETI Cabo San Lucas M&#233xico DCI Departamento de Fisica Mé dica Universidad de Guanajuato Leon M&#233xico Divisió n de Ingenieria en Sistemas Computacionales Tecnol&#243gico Nacional de M&#233xico ITES Los Cabos Cabo San Lucas M&#233xico Departamento de Ingenieria Industrial en Manufactura Universidad Estatal de Sonora Navojoa M&#233xico Departamento de Elé ctrica-Electr&#243nica Tecnol&#243gico Nacional de M&#233xico Campus Mexicali Mexicali M&#233xico Guanajuato M&#233xico

This work presents a different approach to twin primes, an approach from the perspective of the Tesla numbers and gives a refresh and new observation of twin primes that could lead us to an answer to the Twin Prime Conjecture problem. We expose a peculiar relation between twin primes and the generation of prime numbers with Tesla numbers. Tesla numbers seem to be present in so many domains like time, vibration and frequency [1], and the space between twin primes is not the exception. Let us say that twin primes are more than just prime numbers plus 2 or minus 2, and Tesla numbers are more involved with twin primes than we think, and hopefully, this approach give us a better understanding of the distribution of the twin pairs.

关键词： Tesla Numbers Prime Number Twin Prime Numbers Twin Pair

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Mechanical Complications after Myocardial Infarction: A Comprehensive Review

引用

World Journal of Cardiovascular Diseases 2024年第1期14卷 43-60页

作者： Alexis D. Aparicio-Ortiz María Natalia Alonso-jimenez Adrian Espejel-Guzman Aldo Cabello-Ganem Javier Serrano-Roman Santiago Luna-Alcala Nilda Espinola-Zavaleta Department of Nuclear Cardiology National Institute of Cardiology Ignacio Chavez Mexico City Mexico Department of Echocardiography ABC Medical Center Mexico City Mexico

Mechanical complications of myocardial infarction are potentially fatal events that can occur after an acute myocardial infarction. While the introduction of primary percutaneous reperfusion and fibrinolysis has reduced the incidence of these complications to less than 1%. These complications pose significant hemodynamic consequences and necessitate prompt diagnosis. Echocardiography, cardiac magnetic resonance imaging, and computed tomography are valuable tools for establishing an accurate and expedited diagnosis. Consequently, it is imperative to conduct further scientific research to enhance hemodynamic stabilization techniques such as intra-aortic balloon counterpulsation and extracorporeal membrane oxygenation, in addition to exploring new surgical procedures that can reduce mortality resulting from mechanical complications. This article aims to provide a comprehensive review of mechanical complications following myocardial infarction and their correlation with multi-imaging, facilitating a better understanding of these complications.

关键词： Infarction Mechanical Complications Echocardiography Magnetic Resonance

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：