bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluación agronómica y fisiológica en clones de camote (Ipomoea batatas) sometidos a condiciones de estrés hídrico
Authors: León-Pacheco Rommel Igor , Pérez-Macias Mercedes , Fuenmayor-Campos Francia Concepción , Rodríguez-Izquierdo Adrián José , Rodríguez-Izquierdo Gustavo Adolfo , Villagran-Munar Edwin Andres 
Published: September 2021

Introducción. Las raíces y tubérculos como el camote (Ipomoea batatas L.) se encuentran entre los seis primeros cultivos más importantes del mundo. Sin embargo, esta especie es sensible al estrés por déficit hídrico. El uso de genotipos resistentes a la sequía y mejores prácticas de gestión del agua pueden mejorar la calidad y el rendimiento de la raíz. Para ampliar la productividad en tales ambientes se pueden utilizar prácticas de riego complementario o identificar genotipos con potencial de rendimiento promisorios frente a estas condiciones. Objetivo. Evaluar el efecto del estrés hídrico en variables fisiológicas y agronómicas en clones de camote. Materiales y métodos. Se realizó un ensayo en el período de abril-julio 2015 en el Centro Nacional de Investigación Agropecuaria, Maracay, Venezuela, con tres repeticiones bajo un diseño en parcelas divididas, donde la parcela principal estuvo conformada por tres niveles de riego (todo el ciclo, dos y tres primeros meses con riego) y la parcela secundaria por tres clones de camote. Se midieron variables asociadas al intercambio gaseoso, crecimiento vegetativo, biomasa y rendimiento. Resultados. Las plantas de camote frente a condiciones de sequía disminuyeron su crecimiento, expansión foliar, cerraron en forma parcial los estomas para evitar pérdidas de agua por transpiración sin afectar las variables de tasa neta de asimilación de CO2, rendimiento y acumulación de biomasa. El mejor clon fue el 64, con mayor transpiración, acumulación de biomasa y rendimiento de 18,3 t ha-1. El riego en todo el cultivo generó el mayor crecimiento vegetativo con 125 hojas planta-1. Conclusiones. Bajo condiciones de estrés hídrico las plantas de camote se adaptaron fisiológicamente para no perder agua por la transpiración sin sacrificar las tasas de fotosíntesis, con las cuales los clones lograron alcanzar una acumulación de biomasa aérea, raíces y rendimiento del tubérculo similar al cultivo con riego.
Caracteres agronómicos de dos poblaciones de Jaltomata procumbens (Cav.) J. L. Gentry
Authors: Flores-Sánchez I Darío , Sandoval-Villa Manuel , Alcántar-González Ernesto Gabriel , Sánchez-García Prometeo , Soto-Hernández Ramón Marcos , Uscanga-Mortera Ebandro 
Published: September 2021

Introducción. Jaltomata procumbens (Cav.) J. L. Gentry, de uso alimenticio, se considera una especie semi-domesticada (poblaciones que han tenido un proceso de selección artificial pero aún tienen la capacidad de sobrevivir y reproducirse sin la intervención del ser humano) y que cumple con los criterios para su futuro uso. Objetivo. Evaluar caracteres agronómicos de dos poblaciones de J. procumbens, en invernadero e hidroponía. Materiales y métodos. La investigación se realizó en el Colegio de postgraduados, Campus Montecillo, Texcoco, Estado de México, de julio a diciembre de 2019. Se aplicaron los siguientes tratamientos en un sistema hidropónico abierto: dos poblaciones (erguida y decumbente), tres niveles de conductividad eléctrica (CE): 1, 2 y 3 dS m-1 y dos niveles de poda (con y sin poda). Las variables evaluadas fueron: altura de planta (AP), diámetro de tallo (DT), número de hojas (NH) y de racimos (NR), flores por racimo (FLR), frutos por racimo (FR), peso de fruto (PF), rendimiento (REND) y lecturas SPAD. Resultados. Para ambas poblaciones, su cultivo en condiciones de invernadero e hidroponía promovieron el desarrollo en altura de planta, diámetro de tallo y peso de fruto. Se observó una variabilidad dentro y entre poblaciones para poda y conductividad eléctrica; el cultivo a 3 dS m-1 registró la menor altura de planta y el mayor diámetro de tallo, mientras que con 1 dS m-1 se obtuvo el mayor rendimiento; para el tratamiento con poda, los valores más altos se presentaron en flores por racimo, frutos por racimo y peso de fruto. Conclusiones. Ambas poblaciones presentaron el potencial para ser consideradas en estudios en ambientes controlados.
Caracterización fisiológica en plantas de Cannabis medicinal durante distintas etapas fenológicas bajo estrés biótico
Authors: Rodriguez-Yzquierdo Gustavo Adolfo , Patiño-Moscoso Manuel Alfonso , Betancourt-Vásquez Mónica 
Published: September 2021

Introducción. Plantas expuestas a condiciones de estrés alteran su funcionamiento y generan respuestas fisiológicas que afectan su desempeño agronómico. En el cultivo de Cannabis medicinal, son escasos los trabajos de investigación sobre la fisiología de la planta y su interacción con factores bióticos. Objetivo. Determinar variables fisiológicas indicadoras de estrés en diferentes etapas fenológicas de plantas de Cannabis en invernadero y bajo condiciones fitosanitarias contrastantes. Materiales y métodos. El estudio se realizó entre noviembre y diciembre de 2019, en el Municipio Rionegro, Antioquia, Colombia. Semanalmente se sembraron lotes de plantas de Cannabis sativa L., provenientes de multiplicación asexual. Entre las semanas seis y doce posteriores al trasplante se evaluaron las variables índice y fluorescencia de clorofila (basal=Fo, máxima=Fm y variable=Fv), diferencial térmico cultivo ambiente, índice de estrés hídrico y concentración foliar de nutrientes desde el inicio de su fase vegetativa hasta la fase reproductiva y productiva, bajo dos condiciones fitosanitarias contrastantes una con la pudrición blanca causada por Sclerotinia sclerotiorum y la otra sin plagas ni patógenos. Resultados. Las plantas no presentaron estrés abiótico que afectara el aparato fotosintético en ninguna etapa. Los valores de cada nutriente estuvieron dentro de los rangos óptimos y los factores edáficos no representaron limitante para el desarrollo del cultivo. Se definieron valores referenciales de variables fisiológicas en distintos estados fenológicos bajo condiciones óptimas de desarrollo. En plantas enfermas con S. sclerotiorum, el índice de clorofila, el índice de estrés hídrico y la fluorescencia, mostraron valores referenciales que pueden ser útiles para la identificación de efectos perjudiciales en el fotosistema II. Conclusiones. En plantas enfermas el índice de clorofila y los parámetros Fv/Fm y Fv/Fo constituyeron variables indicadoras para detectar estrés biótico en plantas de Cannabis. En plantas sanas Fv/Fm, Fv/Fo, CWSI e índice de clorofila pueden evaluarse en experimentos sobre manejo agronómico del cultivo.
Physicochemical characterization and correlation of raw cow’s milk according to classification assigned in Panama
Authors: Montero-Prado Pablo , Ruiz-Morales Giancarlo Antonio , Fossatti-Carrillo Anibal 
Published: September 2021

Introduction. Currently, there are no bibliographic or statistical records that allow establishing a correlation between the physical-chemical quality characteristics of raw cow’s milk produced in the Republic of Panama and the classification it receives. Objective. To characterize and quantify the physical-chemical parameters of the quality of raw cow’s milk and correlate these characteristics with the classification that milk receives in Panama. Materials and methods. A stratified sampling was carried out according to the classification of raw cow´s milk (grade A, B, and C), 48 of grade A, 71 of grade B, and 393 of grade C. Random samples were taken in Cocle, Veraguas, Herrera and Los Santos during the rainy season from June to September 2018. In the Chiriquí province, the sampling was conducted during the dry season, from January to March 2019. In addition, it was necessary to have at least 512 producers or farms, so that the analysis reached a confidence level of 95 %, a standard deviation of 5 %, and a limit of error of 5 %. Results. The values found allow us to consider that the milk produced in Panama has the physical-chemical characteristics according to international standards. The correlation analysis indicated that the protein had a high relationship with solids non-fat (SNF), density (D), and lactose (L) (0.93, 0.91, and 0.96, respectively); also L is strongly related to SNF and D (0.94 and 0, 91, respectively). Conclusions. The analysis of variance did not allow to establish significant differences between the three existing classifications in the country, which allow a distribution of milk according to the grades of these parameters. However, it was possible to establish the existing correlation between some of these parameters.
CHOICE OF EFFECTIVE TECHNOLOGY OF ENERGY EFFICIENT DESIGN SYSTEM OF BUILDINGS, AMONG THE MOST COMMON
Authors: V. A. GALUSHKO  , I. V. KOLODYAZHNAYA  , K. A. SAVKA  , A. S. UVAROVA  
Published: September 2021

Purpose. Researching the most energy-efficient warming construction system of buildings among the commonest of them, using their technical, technological and economical characteristics. Methodology. Synthesis, analysis, mathematical methods. Findings. For choosing effective technology, information analysis of systems warming of facades was made. Three types were chosen from the most prominent technics. Technical and economical calculations were made for these systems. Originality. Enhancement of the counting approach whereby the selection of the most suitable variant is making by a few points, which doesn’t exclude each other. Practical value. Discovered is, for the optimal choosing of the warming construction of the facade, there is an importance to use a few technical and economical records at the same time.
METHODS OF ASSESSING THE BEARING CAPACITY OF CORRUGATED METAL STRUCTURES
Authors: J. LUCHKO  , Y. KOVALCHUK  , I. KRAVETS  
Published: September 2021

Purpose. The aim of the research is to analyze the methods of calculating and evaluation of the bearing capacity of corrugated metal structures (the CMS) in cooperation with soil backfill as a result of stress from rolling stock or vehicles. To prove the applicability of these methods for the calculation of pipes of different diameters and different structural forms. Methodology. The methods of calculating the deflected mode of corrugated metal pipes of small diameter (up to 3 m.) at constant load, and calculation methods CMS of large diameter more than 6 m are analyzed. Findings. The calculated models that take into account the spatial work of structures is more correct than " flat " models and calculated scheme, and therefore the calculation of the CMS is to apply three-dimensional calculation model which model the most realistic work of corrugated metal structures. Originality. For the first time the methods of calculation and experience designing of flexible corrugated metal structures at interaction of soil backfill and under the influence of the stress from the rolling stock and road transport are analyzed. Practical value. The obtained analysis of the evaluation methodologies of the bearing capacity of corrugated metal structures of different shape section can be used by engineers in bridge probationary stations Ukrainian Railroad (UR) and Ukravtodor and project organizations involved in the design and construction of the CMS.
We come in Peace! (Well, do they?): Human Communicative Fears in Films of an Extra-terrestrial Nature
Authors: Roncallo-Dow Sergio , Uribe Jongbloed Enrique , Aguilar Rodríguez Daniel 
Published: September 2021

Extra-terrestrial beings always have the potential to alter ‘the world as we know it.’ Whenever they appear in film or television, there is a debate about the possibility that we have, as human beings, to communicate with them. Linguistics and semiotics become keyelements in our attempt to bridge the cultural gap. Be it through mathematics, music or technological gadgets, these films only mimic the uncertainty that arises from all types of interculturalcontact. The fear is always the misinterpretation that can turn a ‘We come in peace’ into a fully-fledged war.
This article starts from a general review of 138 films from the decade 2007-2017 to recognize the main points present in their narrative, which shows that hostile conflict remains the main theme. Then it provides an interpretive analysis of the films to describe the type of communication fears that exist incontemporary films, taking a special look at Avatar (Cameron, 2009), Arrival (Villeneuve, 2016) and District 9 (Blomkamp, 2009) as the main representations of our current understanding of communication difficulties. The humanization of extra-terrestrial beings to establish communication with them becomes an inverse representation of the dehumanization of the other, the enemy, as depicted by certain sectors of society and a few recently elected governments, with whom it is difficult to establish mechanisms of communication and dialogue.
La esquematización como estrategia de comunicación visual para una grata experiencia de usuario: un análisis de las aplicaciones educativas virtuales
Authors: Aguirre Erwin , Ferrer María de los Ángeles , Rojas Carlos 
Published: September 2021

El estudio tuvo como objetivo principal el análisis de la comunicación visual en aplicaciones educativas virtuales, bajo el principio de la esquematización y centrado en una mejor experiencia de usuario. La investigación fue de carácter descriptivo. Es una investigación de carácter documental, basada en la recopilación y selección de información de aplicaciones educativas virtuales consideradas como documentos “html”- las cuales se sometieron a la técnica de análisis de contenido.
La muestra de estudio fue de tipo intencional y quedó conformada por 20 aplicaciones educativas virtuales seleccionadas bajo criterios establecidos previamente. Se empleó la técnica de la observación estructurada, aplicando como instrumento una guía de observación. Utilizado por tres expertos del área y, para el análisis y procesamiento de los datos, se empleó un método de triangulación de observadores.
El análisis de los resultados de la categoría esquematización, indicó que el sistema para la gestión de aprendizaje de la muestra analizada, no satisface los postulados de las bases teóricas de las estrategias de comunicación visual. Se evidenció una ineficiencia general en cada elemento que conforma la estrategia de esquematización, tales como: arquitectura de la información, criterios dicotómicos de organización, elementos multimedia y usabilidad. Los hallazgos reflejan la necesidad inmediata de un proceso de alfabetización visual, liderado principalmente por las escuelas de diseño y educación, con el propósito de crear las bases para el diseño de aplicaciones educativas virtuales que generen una mejor experiencia de usuario.
Surgical methods to correct arteriogenic erectile dysfunction
Authors: Bystrenkov A. V. , Povelitsa E. A. , Podgaisky V. N. , Povelitsa A. E. 
Published: September 2021

The study objective is to define the state of the problem of surgical methods for the treatment arteriogenic forms of erectile dysfunction (ED) in the Republic of Belarus, to systematize surgical methods for the correction of arteriogenic ED, to evaluate the results of interventional, surgical and combined methods of the treatment of arteriogenic forms of ED in the Republic of Belarus.Materials and methods. A comprehensive examination was carried out 65 men with arteriogenic ED (average age 52.2 ± 2.2 year, International Index of Erectile Function – 9.6 ± 1.3 points; the hardness of erection – 2.2 ± 0.3 according to the Yunem scale) included ultrasound, multispiral computed angiography, as results of stenosing and occlusive lesions of the aorto-iliac segments, internal pudendal artery (IPA) and distal branches were revealed. Of these, as a result of atherosclerotic damage to arteries – 59 (91 %) patients, hypoplasia of the IPA – 4 (6 %) patients and in 2 (3 %) – cases due to post-traumatic damage to the IPA during fracture of the pelvic bones. Pro- and retrospectively performed analysis of the results of endovascular, surgical and combined correction of chronic arterial insufficiency of penis. Based on the results of the study, blood flow deficiency was simulated in order to determine the possible level and method of its elimination. Subsequently, 34 reconstructive operations were performed, including endovascular: superselective stenting of IPA – in 1 case, angioplasty of IPA – one-bilateral – in 4 cases, stenting of the iliac arteries – in 14 cases, in 4 cases – aorto-femoral bypass or prosthetics. Microsurgical operations with epigastric-penile anastomosis were performed in 9 cases (Virag II type in 8 cases, Michal II – Scharlip in 1 case), including in 3 cases as a second stage to increase arterial perfusion of penis after endovascular interventions. In 3 cases, for severe arteriogenic ED and endothelial insufficiency, endophalloprosthesis was implanted (AMS-Spectra).Results. According to the results of testing of patients after endovascular intervention or microsurgical reconstruction, as well as after a two-stage correction that included both methods, patients showed a statistically significant improvement in erectile function on the scale of the International Index of Erectile Function – from 9–12 points (10.0 ± 0.31 points) before surgery to 16–19 points (17.5 ± 0.25 points) 12 months after surgery (p = 0.0009).Conclusions. Interventional methods of correction after micro surgical and combined operations in patients with arteriogenic ED allow achieving a satisfactory result during the first year after surgery, provided that patients are carefully selected using a comprehensive examination, including various ultrasound techniques, multispiral computed angiography, as well as the selection of an appropriate type of revascularization.
Comparative results of nerve-sparing robotic-assisted prostatectomy
Authors: Shpot’ E. V. , Chinenov D. V. , Chernov Ya. N. , Votyakov A. Yu. , Gasanov E. N. , Rapoport L. M. 
Published: September 2021

Background. Considering decreasing age of patients with prostate cancer, increasing cancer alertness of first-line doctors as well as increased frequency of radical prostatectomies (RP), the problem of preservation of erectile function (EF) is vitally important (erectile dysfunction develops in 25–75 % of all patients who underwent surgery).The study objective is to analyze preservation of EF after RP depending on the type of endoscopic access and nerve preservation.Materials and methods. Between February of 2015 and February of 2016, in the Urology Clinic of the Sechenov University, 507 RPs were performed; the retrospective single-center study included 231 patients with localized prostate cancer. Surgery was performed with the following accesses: laparoscopic, extraperitoneal laparoscopic, and robotic. Indications for nerve preservation were formulated based on the Briganti nomogram, Partin table as well as patient’s desire to preserve EF. Further evaluation of EF was performed using the International Index of Erectile Function (IIEF5), evaluation of quality of life – using the QoL (Quality of Life) scale.Results. RP with nerve preservation was performed in 150 patients. Surgical time and blood loss did not significantly differ for surgeries with and without nerve preservation (р = 0.064 and р = 0.073 respectively). Pathomorphological examination showed that in all cases (n = 231) integrity of the prostatic capsule and negative surgical margin were achieved. Frequent significant erectile dysfunction and full loss of EF were observed in patients after RP without nerve preservation compared to the group with preserved neurovascular bundles (5.0 (0.0–10.0) points compared to 6.5 (0.8–19.0) points per the IIEF5 scale, р = 0.271): 96.2 % versus 72.2 % (p <0.001). Nerve preservation significantly improved quality of life: 1.63 ± 1.16 points versus 1.88 ± 1.02 points per the QoL scale (р = 0.035).Conclusions. The best results were achieved in the robotic access group. Surgery with nerve preservation decreased frequency of EF loss. This benefit in conjunction with the radical nature of the operative intervention allows to consider RP techniques with nerve preservation as reasonable approach to erectile dysfunction prevention in patients with localized prostate cancer.
Hysterical mutism, agrarian and kleptomania
Authors: Toporkov N. 
Published: September 2021

Review of Psychology, Neurology and Experimental Psychology No. 7. 1902
Having cited in some detail the literature of the question, the author describes a patient who was admitted to the Kazan District Hospital with manifestations of mutism, which suddenly developed in her on the road. On the next day of admission, the patient was offered hypnosis by the author, after which she spoke completely fluently. The patient presents a bright example of a hysterical character; suffers from kleptomania.
On the question of cerebrospinal meningitis and its treatment with hot baths
Authors: Sluzinger L. Ya. 
Published: September 2021

Dѣt. Medic. "1901, No. 4.
Bringing a brief historical information about the prevalence of cerebrospinal meningitis and briefly outlining the ethiology, symptomatology and outcomes of it, the author gives the history of the illness of three patients from the children's ward of the Jewish Hospital in Odessa, which were gradually treated with 30 hot baths. All three patients recovered, although the first suffered severe hearing damage, the second had significantly weakened memory.
Antidiphtheria serum as a therapeutic and prophylactic agent for whooping cough
Authors: Konarzhevskiy I. K. 
Published: September 2021

Rus. Medical. Vѣsti. No. 4 for 1902
Based on 20 cases of the use of anti-diphtheria serum in pertussis patients, the author of the lock "definitely, precisely, consciously, actually reasonably" expresses the following propositions: 1) two many 3 injections are enough (per 1000 units of antitoxic.), So that the time of the flow of whooping cough only takes two weeks 2) to prevent the stages of seizures 3) if seizures occur, then after the 3rd injection, as a rule, they quickly completely stop 4) the manifestations of whooping cough abruptly decrease in a day after injection and completely disappeared at the beginning of the 3rd week, and not rarely at the end of the second 5) no particularly sharp reaction from the injection can be noted 6) injection to healthy children warns them of the disease. The author used Inst. Let's experiment. Medicine by injecting at intervals (usually) for 2 or 3 days.
On the question of the operative treatment of elephantiasis
Authors: Gershuni B E. 
Published: September 2021

Rus. Heer. Archive. 1903 pr. 3.
In the quality of the ethiological moment of elephantiasis, most authors point to the reappearance of inflammatory (lymphangoitic, erysipelas) processes, as a result of which tissue densification and subsequent pressure on the veins and lymphatic transudation vessels appear.
Minor gynecology practitioner
Authors: Hannes W. 
Published: September 2021

Bibliography and reviews.
Although the title of the book: "Minor gynecology of a practical doctor" and quite clearly says which group of doctors it is intended for, still it is necessary to make a reservation that to state with sufficient completeness the small gynecology of a practical doctor on about 70 pages (minus the space for drawings, etc.) ), in addition to a small format (34 lines per page), is hardly quite possible. Therefore, it should be pointed out that, in our opinion, it is possible to use this minor gynecology only on condition of sufficient acquaintance with gynecology in general.