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Antifungal Activity of Crude Extracts of Tectona grandis L.f. against Wood DecayFungi

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Phyton-International Journal of Experimental Botany 2022年第8期91卷 1795-1808页

作者： Enrique Cárcamo-Ibarra Mauro Manuel Martínez-Pacheco Abril Munro-Rojas jorge Enrique Ambriz-parra Crisanto Velázquez-Becerra Facultad de Ingeniería en Tecnología de la Madera Universidad Michoacana de San Nicolás de HidalgoMorelia58030México Instituto de Investigaciones Químico-Biológicas Universidad Michoacana de San Nicolás de HidalgoMorelia58030México

Wood is mainly made up of cellulose, hemicelluloses, lignin polymers and other organic and inorganic substances, making it susceptible to deteriorate by various biological agents. Tectona grandis L.f. (Teak) is a timberspecies with high resistance to biological deterioration, valued for its durability, beauty, and mechanical *** purpose of this work was to evaluate the antifungal activity of crude extracts from teak on various fungi thatcause wood deterioration. For this, Teak heartwood was obtained, then fragmented and pulverized until obtaininga flour which was used for compounds extraction using the Soxhlet technique coupled to a rotary evaporatorthrough solvents of increasing polarity (hexane, dichloromethane, tetrahydrofuran, and acetone). The extractsobtained were tested against fungal organisms collected in the field, and the LC50 was determined using teak crudeextracts on Artemia salina as a biological model. The results obtained showed that a high flour yield was obtainedwith hexane (0.951 g), followed by tetrahydrofuran (0.446 g), dichloromethane (0.348 g), and acetone (0.152 g). Byusing nine fungal organisms that predominantly correspond to the genus Aspergillus, the extractable compoundswere tested, inhibiting 25% of mycelial growth with tetrahydrofuran (T. versicolor), and 40.9% with dichloromethane(G. trabeum). Likewise, the biological model of A. salina showed an LC50 of 84.9 μg/mL with hexane, 43.3 μg/mLwith dichloromethane, 59.6 μg/mL with tetrahydrofuran, and 54.7 μg/mL with acetone. For this reason, it is concluded that Teak wood contains many extractable compounds in relation to its weight, besides having antimicrobialactivity when extracted through polar compounds such as dichloromethane and tetrahydrofuran.

关键词： Tectona grandis wood deterioration naphthoquinone antifungal activity wood protection

Silicon thermo-optic phase shifters:a review of configurations and optimization strategies

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Advanced Photonics Nexus 2024年第4期3卷 1-17页

作者： jorge parra Juan Navarro-Arenas Pablo Sanchis Universitat Politècnica de València Nanophotonics Technology CenterValenciaSpain Universidad de Valencia Instituto de Ciencia de Materiales(ICMUV)PaternaSpain

Silicon photonics(SiPh)has emerged as the predominant platform across a wide range of integrated photonics applications,encompassing not only mainstream fields such as optical communications and microwave signal processing but also burgeoning areas such as artificial intelligence and quantum processing.A vital component in most SiPh applications is the optical phase shifter,which is essential for varying the phase of light with minimal optical ***,SiPh phase shifters have primarily utilized the thermo-optic coefficient of silicon for their ***-optic phase shifters(TOPSs)offer significant advantages,including excellent compatibility with complementary metal-oxide-semiconductor technology and the potential for negligible optical loss,making them highly ***,the inherent heating mechanism of TOPSs renders them power-hungry and slow,which is a drawback for many *** thoroughly examine the principal configurations and optimization strategies that have been proposed for achieving energy-efficient and fast ***,we compare TOPSs with other electro-optic mechanisms and technologies poised to revolutionize phase shifter development on the SiPh platform.

关键词： thermo-optic coefficient phase shifter silicon photonics

在南卡罗来纳Savannah河试验场的井间地震成像

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国外油气勘探 1999年第6期11卷 706-714页

作者： jorge O.parra 边醒建高海燕牛毓荃

在南卡罗来纳州大西洋沿海平原能源部的Savannah河试验场,在一个处理放射性废料大罐(直径27m)的下面,曾进行井间地震和连续记录地震测量。我们使用该资料勾划低速带(软物质)并进行井间黏土层连通性成像。在综合了岩心和测井曲线资料的... 详细信息

在南卡罗来纳州大西洋沿海平原能源部的Savannah河试验场,在一个处理放射性废料大罐(直径27m)的下面,曾进行井间地震和连续记录地震测量。我们使用该资料勾划低速带(软物质)并进行井间黏土层连通性成像。在综合了岩心和测井曲线资料的井间地震层析图像上所给出的低速带,揭示了150ft～180ft之间(46m～55m)该区域的软物质,在井间地震剖面深度为180ft(55m)处观测到的反射波对应于这个低速带的底界面。这个反射与软物质和较硬的Tinker组之间的阻抗差异相符。该软物质的低速带指示出碳酸盐岩组(它是Utley石灰岩的一部分)的溶蚀边缘和Griffins Landing段疏松砂岩的存在。射线追踪和共震源地震记录表明Utley石灰岩的坚硬部分横向扩展到检波器井西边大约12.5ft(4m)。连续记录资料展示了140ft～150ft(43m～46m)之间区域里的漏泄波和简正波。漏泄波和简正波计算出的群速度等值线与基于测井和井间地震资料的波导模型是一致的。这就说明Griffins Landing段内低速的褐色黏土(隔水层组)

关键词：井间地震放射性废料处置成像试验场 SRS

Evolution of sexual size dimorphism and its relationship with sex ratio in carabid beetles of Genus Ceroglossus Solier

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Current Zoology 2013年第6期59卷 769-777页

作者： Hugo A. BENITEZ jorge AVARIA-LLAUTUREO Cristian B.CANALES-AGUIRRE Viviane JEREZ Luis E. parra Cristifin E.HERNANDEZ Faculty of Life Sciences University of Manchester Michael Smith Building Oxford Road Manchester M13 9PT UK Instituto de Alta Investigaci6n Universidad de Tarapaca Casilla 7-D Arica Chile Departamento de Zoologia Facultad de Ciencias Naturales y Oceanograficas Universidad de Concepcion Casilla 160-C Concepcion Chile Departamento de Oceanografia Facultad de Ciencias Naturales y Oceanograficas Universidad de Concepci6n Casilla 160-C Concepcion Chile

Although the degree of mate competition, given extreme differences in sex ratio, explains much of the pattern of male-biased size dimorphism among diverse taxa, it fails for some species which have potential for intense male competition for mates and yet exhibit little or no sexual size dimorphism （SSD）. This fact suggest that species with low SSD should be express the effect of evolutionary pressure in non-obvious geometrical shape promoted by sex ratio in an evolutionary time scale. To evaluate this hypothesis we used phylogenetic comparative method in a Bayesian framework to investigate the evolution of SSD and the role of sex ratio at inter-specific level in the species of Ceroglossus （Coleoptera： Carabidae）. In our results the proportion farthest from 1：1 is associated with more disparate body shape, even though the entire group has minimum variation in sex ratio, which is an intrinsic life history character of this group considering its phylogenetic conservatism or phylogenetic signal. We suggest that the sex ratio has determined the dimorphism degree during evolution of this group, since both traits have increased or decreased together during the species divergence （i.e. positive phylogenetic correlation： r2=0.85）. We suggest that morphological studies of SSD will benefit from using comparative method with Bayesian approaches to assess the effect of phylogenetic history and its uncertainty. Finally, this will be allow to researchers to quantify the uncertainty of specific evolutionary hypotheses accounting for observed sexual dimorphism patterns.

关键词： Macroevolution Geometric Morphometrics Bayesian approach Sexual Dimorphism Sex Ratio Ceroglossus

Application of formal languages in polynomial transformations of instances between NP-complete problems

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Journal of Zhejiang University-Science C(Computers and Electronics) 2013年第8期14卷 623-633页

作者： jorge A. RUIZ-VANOYE Joaquín PREZ-ORTEGA Rodolfo A. PAZOS RANGEL Ocotlán DíAZ-parra Héctor J. FRAIRE-HUACUJA Juan FRAUSTO-SOLíS Gerardo REYES-SALGADO Laura CRUZ-REYES DACI Universidad Autónoma del Carmen Computer Science Centro Nacional de Investigación y Desarrollo Tecnológico Systems and Computer Science Instituto Tecnológico de Ciudad Madero Informatics Universidad Politécnica del Estado de Morelos Computer Science Instituto Tecnológico de Cuautla

We propose the usage of formal languages for expressing instances of NP-complete problems for their application in polynomial transformations. The proposed approach, which consists of using formal language theory for polynomial transformations, is more robust, more practical, and faster to apply to real problems than the theory of polynomial transformations. In this paper we propose a methodology for transforming instances between NP-complete problems, which differs from Garey and Johnson's. Unlike most transformations which are used for proving that a problem is NP-complete based on the NP-completeness of another problem, the proposed approach is intended for extrapolating some known characteristics, phenomena, or behaviors from a problem A to another problem B. This extrapolation could be useful for predicting the performance of an algorithm for solving B based on its known performance for problem A, or for taking an algorithm that solves A and adapting it to solve B.

关键词： Formal languages Polynomial transformations NP-completeness

Retrospective Descriptive Analysis of the Combined First Trimester of Pregnancy Screening in the Period Included from February 2016 to March 2017, Maternal Fetal Medicine Unit, San Juan de Dios Hospital

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Open Journal of Obstetrics and Gynecology 2018年第10期8卷 891-899页

作者： Carina Breuning Velásquez Oscar Durán Soto Joaquin Bustillos Villavicencio jorge Mora Sandí Eugenio Calderon Veronica Saborio Leonardo Jimenez Pablo parra Hospital San Juan de Dios San José Costa Rica

A retrospective descriptive study is conducted at the San Juan de Dios Hospital, San José, Costa Rica, during the period from February 2016 to March 2017, with a total of 37 patients from which a combined screening during the first trimester of pregnancy was conducted, evaluating maternal age, biochemical and sonographic methods that together can predict the risk of fetal chromosomal alterations during pregnancy. The purpose of using combined screening as a noninvasive method is to identify high risk gestations and to minimize the number of invasive procedures to detect the highest number of cases. Four patients with higher risk of aneuploidy during pregnancy were identified through this screening.

关键词： Protocol Combined Screening First Trimester Aneuploidy Trisomy

Diabetic Patients Develop Greater Intensity of Postoperative Pain than Non-Diabetics after Open Cholecystectomy: A Pilot Study

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Journal of Biosciences and Medicines 2021年第6期9卷 67-75页

作者： Rocío Adriana Martínez-Alpuche Erick Mauricio Brindis-Fuentes Crystel Guadalupe Guzmán-Priego Francisco Valenzuela-Priego Leonor Ivonne parra-Flores jorge Elías Torres-López Pain Mechanisms Laboratory División Académica de Ciencias de la Salud Universidad Juárez Autónoma de Tabasco Villahermosa Tabasco México Department of Anaesthesiology Hospital Regional de Alta Especialidad “Dr. Juan Graham Casasús” Villahermosa Tabasco México

Background: Pre-clinical and clinical studies have shown that inflammatory pain intensity is increased under diabetes condition. Open cholecystectomy (OC) is a surgical procedure with predictable postoperative pain. However, the comparison of postoperative pain due to open cholecystectomy in diabetic and non-diabetic patients remains unknown. The research question to answer was whether diabetic patients undergoing OC development greater intensity of postoperative pain than non-diabetic patients. Methods: The study was conducted between June 2016 and February 2018 at the Regional Hospital of High Specialty “Dr. Juan Graham Casasús” of Villahermosa, Tabasco, Mexico. Seventy patients in two groups of 35 patients each scheduled for OC under general anesthesia were studied. Pain was assessed using the 11-point numerical rating scale (NRS). The primary endpoint was to know NRS pain scores after awaking of general anesthesia. Secondary outcomes included the time of onset of pain and comparing NRS scores between diabetic and non-diabetic patients undergoing OC. Results: Diabetic patients reported significantly greater intensity pain than non-diabetic patients. The mean overall pain score in the diabetic and non-diabetic patients was 7.2 ± 0.3 and 5.3 ± 0.3 (P = 0.0002), respectively. Furthermore, 60% of diabetic patients had severe pain (NRS ≥ 8) compared to 20% of non-diabetics (P = 0.006). The time to onset postoperative pain was about 35 minutes in both groups (P = 0.876). Conclusions: Diabetic patients undergoing OC have greater intensity postoperative pain and also more frequency of patients with severe pain scores compared with non-diabetic patients. Therefore, analgesic treatment in those patients should consider this point in order to provide a satisfactory postoperative analgesia.

关键词： Postoperative Pain Inflammatory Pain Cholecystectomy Diabetes Observational Study

Foaming supramolecular surfactants for gas mobility control in naturally fractured carbonate reservoirs at high temperature,salinity,and hardness

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Petroleum Science 2022年第6期19卷 3134-3148页

作者： Enrique Soto-Castruita Raúl Hern andez-Altamirano Eduardo Buenrostro-González Erick-Emanuel Luna-Rojero Sung Jae Ko-Kim Violeta-Yasmín Mena-Cervantes Mirna Pons-Jiménez jorge-Francisco Ramírez-Pérez David-Aaσn Nieto-Alvarez Ricardo Cerón-Camacho Jos e-Ernesto parra Raúl Oviedo-Roa Jos e-Manuel Martínez-Magadán Rodolfo Cisneros-Dévora Luis-S.Zamudio-Rivera Instituto Mexicano del Petr oleo Eje Central Lazaro Cardenas Norte 152Col.San Bartolo AtepehuacanCiudad de Mexico07730Mexico CONACy T-Instituto Mexicano del Petroleo Eje Central Lazaro Cardenas Norte 152Col.San Bartolo AtepehuacanCiudad de Mexico07730Mexico Centro Mexicano para la Produccion mas Limpia Instituto Politecnico NacionalAvenida Acueducto s/nCol.La Laguna TicomanCiudad de Mexico07340Mexico Centro de Tecnologías para Exploracion y Produccion Camino de Terracería 800Col.San Jose NovilleroBoca delRíoVeracruz94286Mexico

Oil production and mainte nance are essential issues in naturally fractured reservoirs because they are the largest and most productive on ***,they present early water and gas channeling but could be remediated by using foaming agents to control these phenomena through blocking channeling *** Mexico these reservoirs have pressure up to 5,500 psi,high temperature up to 200℃,salinity up to400,000 ppm,and hardness up to 250,000 ppm;due to these thermodynamic conditions,there has been no available technology to form stable enough *** this work,a foaming supramolecular surfactant with the capability to chelate Ca^(2+)ions is *** a result,surfactant monomers are bridged by captured Ca^(2+)cations leading to the formation of high-molecular-weight oligomers,which significantly increment the viscosity of the solution improving the foam stability,and since at this manner the Ca2+cations are no longer available to precipitate as components of solid salts,the foaming supramolecular surfactant also performs as *** observations are explained through quantum theoretical *** foam is stable,effectively blocking the gas channels,whereas in presence of oil the foam is broken leading the oil to pass into the *** characteristic rheological properties of the foam allow its injection into the formation at a range of flow rates,foam qualities,and shear stress to achieve the flooding and the blocking of a variety of fractured carbonate formations,and the change of the wettability of the matrix,which is a desirable behavior in a huff and puff process,as reported in a previous publication about a successful pilot test of this foam.

关键词： Calcium chelation Foaming composition Supramolecular surfactant Molecular design Gas mobility control Flow assurance Improved oil recovery Conformance control

The Adverse Event Profile in Patients Treated with Transferon<sup>TM</sup>(Dialyzable Leukocyte Extracts): A Preliminary Report

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Pharmacology & Pharmacy 2015年第2期6卷 65-74页

作者： Toni Homberg Violeta Sáenz jorge Galicia-Carreón Iván Lara Edgar Cervantes-Trujano Maria C. Andaluz Erika Vera Oscar Pineda Julio Ayala-Balboa Alejandro Estrada-García Sergio Estrada-parra Mayra Pérez-Tapia Maria C. Jiménez-Martínez Clinical Trials Branch and Clinical Immunology Service Unit of External Services and Clinical Research (USEIC) National School of Biological Sciences National Polytechnic Institute Mexico City Mexico Unit of Pharmacovigilance Unit of External Services and Clinical Research (USEIC) National School of Biological Sciences National Polytechnic Institute Mexico City Mexico Department of Immunology National School of Biological Sciences National Polytechnic Institute Mexico City Mexico Unit of R&D in Bioprocesses (UDIBI) National School of Biological Sciences National Poly-technic Institute Mexico City Mexico Department of Biochemistry Faculty of Medicine National Autonomous University of Mexico Mexico City Mexico

Background: Dialyzable leukocyte extracts (DLE) are heterogeneous mixtures of peptides less than 10 kDa in size that are used as immunomodulatory adjuvants in immune-mediated diseases. TransferonTM is DLE manufactured by National Polytechnic Institute (IPN), and is registered by Mexican health-regulatory authorities as an immunomodulatory drug and commercialized nationally. The proposed mechanism of action of TransferonTM is induction of a Th1 immunoregulatory response. Despite that it is widely used, to date there are no reports of adverse events related to the clinical safety of human DLE or TransferonTM. Objective: To assess the safety of TransferonTM in a large group of patients exposed to DLE as adjuvant treatment. Methods: We included in this study 3844 patients from our Clinical Immunology Service at the Unit of External Services and Clinical Research (USEIC), IPN. Analysis was performed from January 2014 to November 2014, searching for clinical adverse events in patients with immune-mediated diseases and treated with TransferonTM as an adjuvant. Results: In this work we observed clinical nonserious adverse events (AE) in 1.9% of patients treated with TransferonTM (MD 1.9, IQR 1.7 - 2.0). AE were 2.8 times more frequently observed in female than in male patients. The most common AE were headache in 15.7%, followed by rash in 11.4%, increased disease-related symptomatology in 10%, rhinorrhea in 7.1%, cough in 5.7%, and fatigue in 5.7% of patients with AE. 63% of adverse event presentation occurred from day 1 to day 4 of treatment with TransferonTM, and mean time resolution of adverse events was 14 days. In 23 cases, the therapy was stopped because of adverse events and no serious adverse events were observed in this study. Conclusion: TransferonTM induced low frequency of nonserious adverse events during adjuvant treatment. Further monitoring is advisable for different age and disease groups of patients.

关键词： Dialyzable Leukocyte Extracts Adverse Events Monitoring Drug Safety Adjuvant Therapy Immunoregulation Guidelines Transfer Factor Pharmacovigilance