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Influence of local and landscape environmental factors on alpha and beta diversity of macroinvertebrates in Andean rivers

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Journal of Mountain Science 2023年第9期20卷 2487-2501页

作者： DIAZ-ROJAS Camila A PEDROZA-RAMOS Adriana X BARRERA-HERRERA July A ROA-fuentes Camilo A Ecology Unit in Aquatic Systems Research Group Pedagogical and Technological University of ColombiaUPTCAvenida Central del Norte 39-115TunjaBoyacáColombia

Research on macroinvertebrate community structure in Andean rivers has been oriented towards describing patterns of alpha and gamma diversity by taking into account environmental predictors at local spatial scales(e.g.,micro-and mesohabitats).However,the patterns of beta diversity and the importance of landscape-scale variables have been evaluated to a lesser *** objective of this study was to describe the patterns of alpha and beta diversity of benthic macroinvertebrates in the Andean rivers of the Orinoco basin and their relationship with local and landscape environmental variation.A stratified random sampling of macroinvertebrates was carried out at 40 sites(comprising an altitudinal range of between 500 and 2900 m.a.s.l.),local and landscape variables were *** results showed that the variation of alpha diversity was influenced by local and landscape variables,which are directly and indirectly related to the contribution of sediments,substrate composition and flow velocity,providing a heterogeneity of *** beta diversity was explained by the combined effect of local and landscape *** the beta diversity phenomena,turnover was predominant while nestedness presented a minor contribution and both were explained in greater proportion by local descriptors and some landscape variables,specifically those of a geomorphological *** results concur with the view of an environmental and spatial hierarchy within the river habitat and highlight the influence of multiple scales on macroinvertebrate *** above suggests that both local and landscape scales must necessarily be considered for environmental management and the conservation of Andean lotic ecosystems.

关键词： Andean lotic systems Andean agroecosystems Instream habitat Landcover Turnover Nestedness

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超高分辨光子计数CT评估冠状动脉支架通畅性：与有创法冠状动脉造影的对照研究

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国际医学放射学杂志 2024年第5期 619-620页

作者： M.T.Hagar M.Soschynski R.Saffar M.F.Molina-fuentes J.Weiss A.Rau 苗彦许振华

目的与有创冠状动脉造影（ICA）对照，评价超高分辨光子计数CT血管成像（UHR PCD-CTA）检测冠状动脉支架通畅性的准确度。方法前瞻性纳入2022年8月—2023

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A summary of Copepoda:synthesis,trends,and ecological impacts

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Journal of Oceanology and Limnology 2023年第3期41卷 1050-1072页

作者： Vinod VAKATI Juan Manuel fuentes-REINÉS Pengbin WANG Jun WANG Steven DODSWORTH Key Laboratory of Conservation and Utilization of Fish Resources College of Life SciencesNeijiang Normal UniversityNeijiang 641100China Universidad del Magdalena Grupo de Investigación en Biodiversidad y Ecología AplicadaSanta Marta AA 731Colombia Key Laboratory of Marine Ecosystem Dynamics the Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Fourth Institute of Oceanography Ministry of Natural ResourcesBeihai 536000China Department of Life Science College of Natural SciencesHanyang UniversitySeoul 04763Republic of Korea School of Biological Sciences University of PortsmouthPortsmouth PO12DYUnited Kingdom

Copepoda are one of the most significant animal groups present in aquatic ***,evolutionary biologists,and biotechnologists continue to test new methods to study the application of Copepoda as model organisms in various fields of pure and applied science,from evolution and ecology to aquaculture as live feed,as biological control of mosquito larvae,as biological indicators of water and sediment quality,in environmental monitoring and as a source of protein in the food *** paper reviews the current progress and trends within copepod research from a number of different *** emphasize the importance of Copepoda and the necessity of strengthening research on various topics related to copepod biology,some of which are of great significance to local sustainable development.

关键词： bioindicators aquaculture pollutants eutrophication nutrition halotolerance

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Targeting obesity-related inflammation in skin cancer： molecular and epigenetic insights for cancer chemoprevention by dietary phytochemicals

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Journal of Chinese Pharmaceutical Sciences 2016年第4期25卷 235-249页

作者： Ximena Paredes-Gonzalez Francisco fuentes Yaoping Lu 江亚伍 Department of Pharmaceutics Ernest Mario School of Pharmacy Rutgers The State University of New Jersey Facultad de Agronomía e Ingeniería Forestal Pontificia Universidad Católica de Chile Department of Chemical Biology Ernest Mario School of Pharmacy Rutgers The State University of New Jersey 美国Rutgers新泽西州立大学Ernest Mario药学院 Rutgers新泽西州立大学癌症预防研究中心

Non-melanoma skin cancer(NMSC) is one of the most common cancers in the US, although the role of obesity in skin cancer remains unclear. In vivo studies have consistently demonstrated that obese mice challenged with UVB radiation show increased skin tumorigenesis in comparison with leaner control mice. Growing evidence suggests that enhanced inflammation, oxidative stress and impaired apoptosis may play important roles in the development of skin cancer. Interventions such as voluntary exercise and the surgical removal of parametrial fat have been demonstrated to be effective in reducing adipose tissue that may influence the development of skin cancer; however, these interventions are not achievable in all obese patients. Therefore, the use of dietary natural phytochemicals that may modify and reverse the deregulated molecular and epigenetic events related to obesity and cancer development might represent a potential therapeutic modality due to their potential efficacy and low toxicity. In this review, we aim to provide the molecular and epigenetic basis of the NMSC-obesity relationship and to highlight the potential anti-cancer chemopreventive benefits of dietary phytochemicals such as sulforaphane and epigallocatechin-3-gallate.

关键词： Chemoprevention Epigenetics Obesity Non-melanoma skin cancer

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Digital surface model applied to unmanned aerial vehicle based photogrammetry to assess potential biotic or abiotic effects on grapevine canopies

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International Journal of Agricultural and Biological Engineering 2016年第6期9卷 119-130页

作者： Su Baofeng Xue Jinru Xie Chunyu Fang Yulin Song Yuyang Sigfredo fuentes College of Mechanical and Electronic Engineering Northwest A&F UniversityYangling 712100China College of Enology Northwest A&F UniversityYangling 712100China Faculty of Veterinary and Agricultural Sciences University of MelbourneParkville 3010Australia

Accurate data acquisition and analysis to obtain crop canopy information are critical steps to understand plant growth dynamics and to assess the potential impacts of biotic or abiotic stresses on plant development.A versatile and easy to use monitoring system will allow researchers and growers to improve the follow-up management strategies within farms once potential problems have been *** study reviewed existing remote sensing platforms and relevant information applied to crops and specifically grapevines to equip a simple Unmanned Aerial Vehicle(UAV)using a visible high definition RGB *** objective of the proposed Unmanned Aerial System(UAS)was to implement a Digital Surface Model(DSM)in order to obtain accurate information about the affected or missing grapevines that can be attributed to potential biotic or abiotic stress *** analysis process started with a three-dimensional(3D)reconstruction from the RGB images collected from grapevines using the UAS and the Structure from Motion(SfM)technique to obtain the DSM applied on a per-plant ***,the DSM was expressed as greyscale images according to the halftone technique to finally extract the information of affected and missing grapevines using computer vision algorithms based on canopy cover measurement and *** validate the automated method proposed,each grapevine row was visually inspected within the study *** inspection was then compared to the digital assessment using the proposed UAS in order to validate calculations of affected and missing grapevines for the whole studied *** showed that the percentage of affected and missing grapevines was 9.5%and 7.3%,respectively from the area ***,for this specific study,the abiotic stress that affected the experimental vineyard(frost)impacted a total of 16.8%of *** study provided a new method for automatically surveying affected or missing grapevines in the field and an evaluation tool fo

关键词： remote sensing canopy cover viticultural management frost damage digital surface model

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Subaxial cervical spine injury classification system: is it most appropriate for classifying cervical injury?

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Neural Regeneration Research 2015年第9期10卷 1416-1417页

作者： Rafael Martínez-Pérez Francisco fuentes Víctor S.Alemany Division of Neurosurgery Department of Clinical Neurological Sciences University of Western Ontario Department of Neurology Hospital Rafael Méndez School of Medicine Universidad Complutense

The cervical spine injury represents a potential devastating disease with 6% associated in-hospital mortality （lain et al., 2015）. Neurological deterioration ranging from complete spinal cord injury （SCI） to incomplete SCI or single radiculopathy are potential consequences of the blunt trauma over this region. The subaxial cervical spine accounts the vast majority of cervical injuries, making up two thirds of all cervical fractures （Alday, 1996）. Few classifications （Holdsworth, 1970; White et al., 1975; Mien et al., 1982; Denis, 1984; Vaccaro et al., 2007） have been proposed to describe injuries of the cervical spine for several reasons. First, to delineate the best treatment in each case; second, to determinate an accurate neurological prognosis, and third, to establish a standard way to communicate and describe specific characteristics of cervical injuries patterns. Classical systems are primarily descriptive and no single system has gained widespread use, largely because of restrictions in clinical relevance and its complexity.

关键词： is it most appropriate for classifying cervical injury SLIC Subaxial cervical spine injury classification system

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Secondary male hypogonadism： a prevalent but overlooked comorbidity of obesity

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Asian Journal of Andrology 2018年第6期20卷 531-538页

作者： Maria Molina-Vega Araceli Mufioz-Garach Miguel Damas-fuentes JosO Carlos Fernfindez-Garcia Francisco J inahones Department of Endocrinology and Nutrition Virgen de la Victoria Universitary HospitalMalaga 29010Spain Institute of Biomedical Research in Malaga（IBIMA） Virgen de la Victoria Universitary HospitalMalaga 29010Spain CIBER Pathophysiology of Obesity and Nutrition（CB06/003） Institute of Health Carlos III（ISClII）Madrid 28029Spain.

Male hypogonadism associated with obesity is a very prevalent condition and is increasing in parallel with the epidemic prevalence of obesity. Low testosterone levels promote higher fat mass with reduced lean mass. Male hypogonadism is related to an increase in associated cardiometabolic complications, such as hypertension, type 2 diabetes mellitus, the metabolic syndrome, and cardiovascular disease. Its influence as a comorbidity of obesity is becoming more evident and should be evaluated and treated in at-risk patients. Mechanisms involved in this relationship include body composition changes, the presence of adipokines, insulin resistance, and other factors, some of which are still unknown. Weight loss and treatment to replace testosterone levels improve the metabolic profile and quality of life in patients with obesity and hypogonadism; these beneficial effects depend on treatment modality and duration of therapy. The use of testosterone replacement therapy may be indicated, as it has not been shown to increase cardiovascular risk, and retrospective studies suggest a reduction in events in men with metabolic syndrome and type 2 diabetes.

关键词： adipose tissue male hypogonadism obesity testosterone

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A Fragmentation Mechanism of Homemade Explosive TMDD Using DART-MS and Isotopic Labeling

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火炸药学报 2018年第1期41卷 16-20,30页

作者： Alexander Pedroza Zarate Fredy Colpas-Castillo Daniel J.Alcazar Franco Wilman A.Cabrera-Lafaurie Eduardo A.Espinosa-fuentes Department of Chemistry Universidad de Cartagena Facultad de Ciencias Exactas Cartagena Colombia Department of Natural and Exact Science Corporación Universidad de la Costa (CUC) Barranquilla Colombia Department of Civil and Environmental Sciences Corporación Universidad de la Costa (CUC) Barranquilla Colombia

A fragmentation mechanism and characterization for the first time using Direct Analysis in Real Time- Time of Flight-Mass Spectrometry(DART-TOF-MS)of the tetramethylene diperoxide dicarbamide(TMDD)compound were *** MS-spectrum may support other research about devices and detection in real *** mass spectrum of TMDD obtained using DART ionization in the positive-ion detection mode exhibited a strong peak at m/z254representing an ammonium adduct([TMMD·NH_4]~+).There was another peak at m/z237,which represented the protonated molecule([TMDD·H]~+)of *** two peaks corroborated the identity of the *** DART-MS spectra of the TMDD-isotopomer successfully corroborated the respective molecular tails. The principal fragmentation residues also showed coherence according to the number of isotopically labeled atoms on the TMDD *** contrast with other organic peroxides analyzed by this technique,TMDD exhibited substantial *** theoretical modeling results showed that the fragmentation mechanism of the TMDD ion adduct is strongly dependent of the TMDD ring flexibility and the hydrogen bonding formed between the nitrogen and oxygen atoms and the atmospheric proton.

关键词： direct analysis in real time Time of Flight-Mass Spectrometry TMDD isotopomers

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Influence of Data Clouds Fusion From 3D RealTime Vision System on Robotic Group Dead Reckoning in Unknown Terrain

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IEEE/CAA Journal of Automatica Sinica 2020年第2期7卷 368-385页

作者： Mykhailo Ivanov Oleg Sergyienko Vera Tyrsa Lars Lindner Wendy Flores-fuentes Julio Cesar Rodriguez-Quinonez Wilmar Hernandez Paolo Mercorelli Universidad Autónoma de Baja California MexicaliB.C.21100Mexico Universidad de Las Américas Quito 170125Equador Leuphana University of Lueneburg Lüneburg 21335Germany

This paper proposes the solution of tasks set required for autonomous robotic group behavior optimization during the mission on a distributed area in a cluttered hazardous *** navigation scheme uses the benefits of the original real-time technical vision system(TVS)based on a dynamic triangulation *** method uses TVS output data with fuzzy logic rules processing for resolution *** on previous researches,the dynamic communication network model is modified to implement the propagation of information with a feedback method for more stable data exchange inside the robotic *** to the comparative analysis of approximation methods,in this paper authors are proposing to use two-steps post-processing path planning aiming to get a smooth and energy-saving *** article provides a wide range of studies and computational experiment results for different scenarios for evaluation of common cloud point influence on robotic motion planning.

关键词： Data transfer group behavior machine vision navigation robotic group(RG) vision system

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Values for particle-scale properties of biomass briquettes made from agroforestry residues

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Particuology 2014年第1期12卷 100-106页

作者： á.Ramírez-Gómez E.Gallego J.M.fuentes C.González-Montellano F.Ayuga BIPREE Research Group Universidad Politécnica de Madrid Ciudad Universitaria28040 Madrid Spain WESTEEL EMEA S.L.Avenida de Europa 34 D 2° A28023 MadridAravaca Spain

The production of biomass pellets and briquettes from agroforestry residues has increased rapidly in recent years. The design of machines, equipment and the infrastructure necessary for the handling, trans port and storage of these products has been an engineering challenge since, when moving, biomass does not usually flow as easily as other granular materials. The discrete element method （DEM） provides a means of studying the handling and silo discharge behaviour of granular solids as well as the distribution of the pressures exerted by such materials in silos. However, the development of such models requires certain properties of the particles in question to be known. The present work experimentally determines the true density, Young＇s modulus of elasticity （axial and radial）, the particleparticle restitution coeffi cient and the particlewall friction coefficientall variables that must be known in the construction of DEM modelsfor briquettes made from maize stalk, maize stalk plus pine wood chips, rice husk, vine shoots, raoe straw, cereal straw and sawdust olus cereal straw.

关键词： BiomassBriquettesMechanical propertiesDiscrete element method

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