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Bofedal response to climate variability, local management, and water extraction: A case study of Chucuyo, Northern Chile

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Journal of Mountain Science 2022年第1期19卷 241-252页

作者： URIBE-ÁLVAREZ Monserrat C prieto manuel MESEGUER-RUIZ Oliver Departamento de Ciencias Históricas y Geográficas Universidad de TarapacáArica 1010069Chile Departamento de Ciencias Históricas y Geográficas Universidad de TarapacáIquique 1101783Chile

Andean high-altitude wetlands are important ecosystems that serve a range of socialecological functions. In the Andes, bofedales, a specific type of peat-producing wetland, are essential for the sustainability of mountain ecosystems and indigenous pastoralist communities. The Chucuyo bofedal in northern Chile is affected by climatic variability and water extraction for agricultural uses via the Lauca canal. Herders in the local community also actively manage this wetland according to their traditional ecological knowledge to ensure permanent fodder for their animals. In this article, we analyze the annual behavior of the Chucuyo bofedal after the wet season. Based on precipitation data, extracted water flows, vegetation vigor from satellite images, and an ethnographic approach, we determined that the bofedal’s productivity was negatively correlated with the amount of precipitation and positively correlated with the surface area of the wetland. However, water extraction via the Lauca channel had no significant relationship with either surface area or vegetation vigor. We identify community practices and traditional ecological knowledge as key elements in the maintenance of these ecosystems. This situation is critical in the context of an aging population and the current pattern of migration out of the region to urban areas. The results provide substantial empirical evidence for future decision-making regarding the conservation of these ecosystems.

关键词： Atacama Bofedales Indigenous people Lauca canal Normalized Difference Vegetation Index

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A Golden Touch in the Design of Multifunctional Porphyrin Metallacages:Host-Guest Chemistry for Drug-Target Interactions

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CCS Chemistry 2024年第7期6卷 1662-1671页

作者： Tamara Rodríguez-prieto Darren Wragg Nicole Heiduk Mihyun Park Nicole Strittmatter Roland A.Fischer Angela Casini Guillermo Moreno-Alcántar Chair of Medicinal and Bioinorganic Chemistry Department of ChemistrySchool of Natural SciencesTechnical University of Munich85748 Garching b.München Professorship for Analytical Chemistry Department of ChemistrySchool of Natural SciencesTechnical University of Munich85748 Garching b.München Chair of Inorganic and MetalOrganic Chemistry Department of ChemistrySchool of Natural SciencesTechnical University of Munich85748 Garching b.München Munich Data Science Institute(MDSI) Technical University of Munich85748 Garching b.München

The use of three-dimensional self-assembled metallacages(MCgs)as multimodal drug platforms holds great ***,the synthesis of MCgs with increased complexity and functionality is a great challenge since understanding of the interaction of MCgs with biological targets is still *** this context,this work reports on the integration of a gold(III)porphyrin scaffold into a prismatic MCg structure and explores its application for multimodal therapy of cancer in vitro,namely enabling both photodynamic therapy and *** experimental approaches with a state-of-the-art metadynamics theoretical study,we discovered that the gold cage shows unprecedented host-guest interaction-driven selective stabilization of guanine-quadruplex(G4)structures-validated anticancer drug targets-disclosing a new mechanism to pursue in the design of supramolecular drugs.

关键词： gold metallacages porphyrins G4stabili-zation host-guestchemistry anticanceragents

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Effective prophylaxis with rFVIIa in young haemophiliacs with inhibitors using a schedule similar to FVIII prophylaxis in non-inhibitor patients

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Health 2013年第7期5卷 1151-1157页

作者： Maria Fernanda Lopez-Fernandez Carmen Altisent Victor Jimenez-Yuste Faustino Garcia-Candel Carmen Sedano Ana Cid Eva Mingot Ramiro Nunez Maria Jose Paloma Inmaculada Soto manuel prieto Haematology Complejo Hospitalario Universitario A CorunaA CorunaSpain Haemophilia Unit Hospital Universitario Vall d’HebronBarcelonaSpain Haemophilia Unit Hospital UniversitarioMadridSpain Haemophilia Unit Hospital Universitario Virgen de la ArreixacaMurciaSpain Haematology Complejo Hospitalario Universitario Marques de ValdecillaSantanderSpain Congenital Coagulophaties Unit Hospital Universitario La FeValenciaSpain Haematology Hospital Universitario Carlos HayaMalagaSpain Haematology Hospital Universitario Virgen del RocíoSevillaSpain Haematology Hospital Virgen del CaminoPamplonaSpain Haematology Hospital General de AsturiasOviedoSpain Haematology Hospital General YagüeBurgosSpain

Objective: To assess the role of early prophylaxis with recombinant activated factor VII (rFVIIa) in young haemophiliacs with inhibitors and to determine whether it can reduce bleeding episodes and prevent joint damage. Patients and Methods: Ten severe haemophiliacs, less of three years old, with up to four joint bleeds and inhibitors to FVIII who started early prophylaxis with rFVIIa, were included. A number of haemorrhages/year/patient and haemarthroses/ year/patient were compared before the start of prophylaxis, which include both the time before (initial period) and after inhibitor diagnosis (inhibitor period), with those during prophylaxis (prophylaxis period). Results: The mean time of inhibitor diagnosis was 15.6 months (range: 2.3-34.1). The mean time between inhibitor diagnosis and the start of prophylaxis was 7.1 months (range: 0-23.2), shorter than the time of rFVIIa prophylaxis (mean: 10.3 months;range: 4.1-32.0). Bleeding episodes for the three time periods were 45, 36 and 17, respectively, or 0.29 and 0.51 haemorrhages/year/patient in the two periods prior to prophylaxis compared to 0.17 during prophylaxis. Total haemarthroses for the three-time periods were 7, 5 and 5, respectively. The haemarthroses/year/patient in the pre-prophylaxis period were 0.032 and 0.070, compared to0.049 inthe prophylaxis period. rFVIIa schedules were either 90 μg/kg three times weekly or 90 μg/kg daily. Conclusions: Early prophylaxis with rFVIIa may be efficacious in young haemophiliacs with inhibitors, reducing joint bleeds. After the risky period of inhibitor presence, they are able to continue rFVIII prophylaxis with success assured to prevent arthropathy.

关键词： rFVIIa Haemarthroses Haemophilia Inhibitors Prophylaxis

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太平洋深处的浮动生态城市设计

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工业设计 2023年第8期 16-16页

作者： Juan manuel prieto Clara Focaccia Maxi Araya 不详

随着地球温度的持续飙升,冰川融化加速,海平面急剧上升,许多国家已经开始对海洋进行城市化设计,以防止自己像“亚特兰蒂斯”一样被淹没在水中。Estudio Focaccia prieto提出了一个浮动城市的概念,围绕未受污染的海洋水域形成的潟湖,提... 详细信息

随着地球温度的持续飙升,冰川融化加速,海平面急剧上升,许多国家已经开始对海洋进行城市化设计,以防止自己像“亚特兰蒂斯”一样被淹没在水中。Estudio Focaccia prieto提出了一个浮动城市的概念,围绕未受污染的海洋水域形成的潟湖,提供了一个可持续的居住生态系统。该项目计划在太平洋深处通过回收的塑料创建一座大都市,从而净化污染严重的海洋垃圾场。Polimeropolis用一系列巨大的浮动岛屿来清理海洋,实现太平洋垃圾场的城市化,通过可再生系统现场产生清洁的电力和水。作为一个可扩展的城市阶段模型,这个概念项目包括一系列混合用途的城市“环”,每个环都容纳了一组栖息地,同时包围着一个巨大的海洋潟湖。围绕着这些岛屿,创建了一个由植被组成的废物收集边界网,限制了微塑料的通过,同时净化水源。

关键词：混合用途亚特兰蒂斯地球温度冰川融化阶段模型垃圾场微塑料生态系统

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Determining the need for a thoracoscopic approach to treat a giant hiatal hernia when abdominal access is poor

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World Journal of Gastrointestinal Surgery 2023年第12期15卷 2739-2746页

作者： Francisco Javier Pérez Lara Rogelio Zubizarreta Jimenez Tatiana prieto-Puga Arjona Pilar Gutierrez Delgado Juan manuel Hernández Carmona Jose manuel Hernández Gonzalez Maria Pitarch Martinez Department of Surgery Hopital de AntequeraAntequera 29200Spain DOXA MicrofluidicsRincon de la Victoria 29730Spain Department of Surgery HRU Carlos HayaUnidad Cirugia Hepatobiliopancreat&TrasplantesMalaga 29200Spain

BACKGROUND Giant hernias present a significant challenge for digestive *** approach taken(laparoscopic vs thoracoscopic)depends largely on the preferences and skills of each surgeon,although in most cases today the laparoscopic approach is *** To determine whether patients presenting inadequate laparoscopic access to the intrathoracic hernial sac obtain poorer postoperative results than those with no such problem,in order to assess the need for a thoracoscopic *** For the retrospective series of patients treated in our hospital for hiatal hernia(n=112),we calculated the laparoscopic field of view and the working area accessible to surgical instruments,by means of preoperative imaging tests,to assess the likely outcome for cases inaccessible to *** Patients with giant hiatal hernias for whom a preoperative calculation suggested that the laparoscopic route would not access all areas of the intrathoracic sac presented higher rates of perioperative complications and recurrence during follow-up than those for whom laparoscopy was *** difference was statistically ***,the insertion of mesh did not improve results for the non-accessible *** For patients with giant hiatal hernias,it is essential to conduct a preoperative evaluation of the angle of vision and the working area for *** parts of the intrathoracic sac are inaccessible laparoscopically,the thoracoscopic approach should be considered.

关键词： Hiatal hernia Abdominal surgery Laparoscopy Thoracoscopy surgery

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Therapeutic potential of lysosomal cathepsins for neurodegenerative diseases

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中国神经再生研究：英文版 2023年第8期18卷 1713-1714页

作者： Susy prieto Huarcaya Friederike Zunke Department of Molecular Neurology University Hospital ErlangenFriedrich-Alexander-Universität Erlangen-NürnbergErlangenGermany

Lysosomes are ubiquitous and dynamic organelles with a central role in degradation and recycling of damaged cell components and misfolded proteins,otherwise known as *** plays a fundamental role in the process of correcting cell homeostasis and cellular ***,this process is essential in the central nervous system,as neurons are not able to easily eliminate altered proteins given their post-mitotic state.

关键词： homeostasis diseases otherwise

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*** binding properties of the C-terminal segment of retinol dehydrogenase 8

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Annals of Eye Science 2018年第1期 428-428页

作者： AndréHädicke Ana I.A.Coutinho François Otis Mustapha Lhor Line Cantin manuel prieto Normand Voyer Christian Salesse PROTEO and CUO-Recherche Centre de recherche du CHU de Québec-UniversitéLavalHôpital St-SacrementQuébecCanada Centro Química-Física Molecular Instituto Superior TécnicoUniversidade de LisboaLisboaPortugal PROTEO and Dépt.Chimie FacultéSciences et génieUniversitéLavalQuébecCanada

Background:Retinol dehydrogenase 8(RDH8)is a 312-amino acid(aa)protein involved in the visual *** to the outer segment disk membranes of photoreceptors,it reduces all-trans-retinal to all-trans-retinol1 as one of the rate-limiting steps of the visual ***8 is a member of the short-chain dehydrogenase/reductase *** C-terminal segment allows its membrane-anchoring through the postulated presence of an amphipathicα-helix and of 1 to 3 acyl groups at positions 299,302 and *** secondary structure and membrane binding characteristics of RDH8 and its C-terminal segment have not yet been ***:To evaluate the membrane binding of RDH8,the full-length protein(aa 1-312),a truncated form(aa 1-296),its C-terminal segment(aa 281-312 and 297-312)as well as different additional variants of this segment were *** truncated protein binds membranes less efficiently than the full-length ***,the C-terminal segment of RDH8 is essential for the binding and has thus been further *** intrinsic fluorescence of tryptophan residues at positions 289 and 310 of the wild-type C-terminal segment of RDH8 and the mutants W289F,W310F and W310R have thus been used to determine their extent of binding to lipid vesicles and to monitor their local *** lipid vesicles composed of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine(POPC)or a mixture of POPC and 1-palmitoyl-2-oleoyl-sn-glycero-3-phospho-L-serine(POPS)were used to mimic the phospholipid content of the outer segment disk membranes of ***:An increase in fluorescence intensity and in fluorescence lifetime is observed upon increasing the concentration of lipid *** data allowed calculating values of partition coefficient of the C-terminal segment of RDH8 varying between Kp=1.1 E6 to 1.7 *** is noteworthy that the observation of a more intense shift to lower wavelengths upon membrane binding of the mutant W310R and W310F indicates a deeper inco

关键词： Peptide-membrane binding electrostatic interactions hydrophobic interactions fluorescence spectroscopy

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Combination of Interleaved Single-input Multiple-output DC-DC Converters

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CSEE Journal of Power and Energy Systems 2022年第1期8卷 132-142页

作者： Eladio Dur´an Aranda Salvador P´erez Litr´an Mar´ıa Bella Ferrera prieto Electronic Engineering Computer Systems and Automation DepartmentUniversity of HuelvaHuelvaSpain Electrical and Thermal Engineering Design and Projects DepartmentUniversity of HuelvaHuelvaSpain

This paper analyses,simulates and verifies an experimental prototype of a four-phase interleaved DC-DC *** is based on a SEPIC-Cuk *** developed prototype has been used in single-input multiple-output(SIMO)*** combined converter allows obtaining dual output voltages of the same value,from a single input DC voltage and with only a power *** interleaved DC-DC converters achieve a better dynamic response and low ripple,maintaining their *** converter is connected in parallel,thereby managing their losses by distributing them between more components,which facilitates the thermal management of the multiphase converter and allows handling high power values in small sizes with respect to solutions for a single *** control strategies were applied:synchronous operation mode(SOM)and interleaved operation mode(IOM).The simulation results allow the comparison of both operational modes,verifying that the IOM presents advantages with respect to the ripple at the input and output *** experimental prototype was designed for a distributed power architecture and bipolar DC microgrid(MG).

关键词： Bipolar DC DC-DC converter interleaved

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A computer vision system for early detection of anthracnose in sugar mango(Mangifera indica)based on UV-A illumination

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Information Processing in Agriculture 2023年第2期10卷 204-215页

作者： Leonardo Ramırez Alberto Carlos Eduardo Cabrera Ardila Flavio Augusto prieto Ortiz Facultad de Ingenierı´a Universidad Nacional de ColombiaBogota´D.C.111321Colombia

The present work describes the development of a computer vision system for the early detection of anthracnose in sugar mango based on Ultraviolet A illumination(UV-A).Anthracnose,a disease caused by the fungus Colletotrichum sp,is commonly found in the fruit of sugar mango(Mangifera indica).It manifests as surface defects including black spots and is responsible for reducing the quality of the ***,it decreases its commercial *** more detail,this study poses a system that begins with image acquisition under white and ultraviolet ***,it proposes to analyze the Red,Green and Blue color information(R,G,B)of the pixels under two types of illumination,using four different methods:RGB-threshold,RGB-Linear Discriminant Analysis(RGBLDA),UV-LDA,and *** analysis produces an early semantic segmentation of healthy and diseased areas of the mango *** results showed that the combination of the linear discriminant analysis(LDA)and UV-A light(called UV-LDA method)in sugar mango images allows early detection of ***,this method achieves the identification of the disease one day earlier than by an expert with respect to the scale of anthracnose severity implemented in this work.

关键词： Sugar mango Anthracnose LDA UV-A light Grading Image processing

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Evaluation of remote radiologist-interpreted point-of-care ultrasound for suspected dengue patients in a primary health care facility in Colombia

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Infectious Diseases of Poverty 2023年第5期12卷 45-57页

作者： Lyda Osorio Iñigo prieto Daniela Zuluaga Deliana Ropero Neelesh Dewan Jonathan D.Kirsch Epidemiology and Population Health Research Group(GESP) School of Public HealthUniversidad del ValleCaliColombia Department of Radiology School of MedicineUniversidad del ValleCaliColombia Division of General Internal Medicine Department of Internal MedicineUniversity of Minnesota Medical SchoolMinneapolisMN 55455USA Department of Internal Medicine University of Miami Miller School of MedicineMiamiFLUSA

Background Early identification of plasma leakage may guide treatment decisions in dengue *** study evaluated the value of point-of-care ultrasound(POCUS)to detect plasma leakage and predict hospitalization or referral to a higher level of care in suspected dengue patients under routine conditions at a primary care facility in *** We conducted a cohort study between April 2019 and March 2020 in a primary care hospital in Cali,*** prospectively included and followed 178 patients who were at least 2 years old with fever of less than 10 days and clinician-suspected dengue.A trained general practitioner performed a standardized POCUS *** were quality-rated and overread by an expert radiologist,and her results and those of the general practitioner were compared using the Kappa *** regression was used to identify factors associated with plasma leakage at enrollment and explore its prognostic value regarding hospital admission or referral to a higher level of *** Half(49.6%)POCUS images were of suitable quality to be *** proportion of plasma leakage reported by the radiologist was 85.1%(95%CI:78.6-90.2%)and 47.2%by the study physician(Kappa=0.25,95%CI:0.15-0.35).The most frequent ultrasound findings were ascites(hepatorenal 87.2%,splenorenal 64%,or pelvic 21.8%)and gallbladder wall thickening(10.5%).Plasma leakage was higher in subjects with thrombocytopenia(aOR=4,95%CI:1.3-12.1)and lower in patients 30-59 years old(aOR=0.1,95%CI:0.0-0.4)than in those 18 years old or *** evidence of plasma leakage(aOR=8.2,95%CI:2.2-29.9),thrombocytopenia(aOR=6.3,95%CI:2.4-16.0)and pulse pressure(aOR=1.1,95%CI:1.07-1.2)were associated with hospital admission or referral to a higher level of *** Ultrasound is useful to detect plasma leakage in primary care and,challenges remain to guarantee high-quality images and diagnostic accuracy,for which a standardized dengue POCUS protocol and training pr

关键词： Dengue Ultrasound Plasma leakage Primary care Colombia

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