bluuebunny/crossref_metadata_2025_split huggingface dataset:
Methodological approaches to the choice of policy of agricultural seed provision of the Russian Federation
Authors: Uzun V. Ya. 
Published: January 2022

Relevance. In the normative legal documents and scientific publications, various options for the policy of providing Russia with seeds are considered. In most of them, the emphasis is on increasing the share of the sown seeds of domestic selection (including those produced in the country or abroad), the share of seeds of domestic production (including seeds of domestic selection and seeds of foreign selection localized in Russia), the share of varieties of domestic selection allowed for use in the Russian Federation, the number of newly developed varieties of seeds. Business does not always select seeds in accordance with the recommendations of the authorities and science: its policy is aimed at sowing seeds of high quality, which in many cases leads not to an increase, but to a decrease in self-sufficiency in the seeds of domestic selection and production.Methods. Various options for the policy of seed production in Russia have been studied, including the production of seeds of domestic selection, the localization of production of seeds of foreign selection in Russia and Russian selection abroad, import and export of seeds of domestic and foreign selection. Indicators for the economic assessment of each of the crop-specific policy options have been developed. The comparison of the results of the Russian policy of seed provision with the policy of Germany and Poland is carried out. As one of the indicators of the quality of domestic seeds, it is proposed to use the ratio of prices of exported domestic seeds and similar seeds exported by other countries.Results. The necessity of transition from the threshold level of seed self-sufficiency established by the Doctrine of Food Security 2020 to its differentiation for individual crops, taking into account the seeds of domestic and foreign selection produced in Russia, is substantiated. With regard to sunflower, along with the localization of the production of foreign-bred seeds in Russia, special measures are needed to replace the import with domestic-bred seeds. For peas and soybeans, the task of import substitution has been solved due to the localization of the production of seeds of foreign selection (the share of imported seeds is less than 1%). A forward-looking policy should be aimed at achieving a positive export-import balance in seeds.
Isolation, identification and probiotic properties of vaginal isolates of lactic acid bacteria of healthy slaughter cows
Authors: Malik N. I. , Malik E. V. , Malenkova J. A. , Rusanov I. A. , Gagaeva E. A. 
Published: January 2022

Relevance. The use of antibiotics to treat infections of the reproductive tract in cows can cause bacterial resistance to antibiotics and endanger human health. Potentially, preparations from representatives of the lactic acid vaginal microflora (probiotics) can be used as a biological control to reduce the use of antibiotics in animal husbandry.However, the specific composition of the vaginal lactic acid microflora of healthy dry cows and its probiotic properties remain poorly documented.Methods. The species identification of catalase-negative gram-positive isolates of bacteria forming colonies on MRS agar isolated from utero-cervical mucus of healthy lactating cows was carried out in accordance with standard procedures using a culturedependent approach, biochemical tests and tests for sugar fermentation using API50 CHL strips (bioMеrieux, France). For testing for antagonistic activity by the method of delayed antagonism against test cultures of staphylococci and Escherichia, 14 isolates were selected in accordance with typing assigned to 5 species of the genus Lactobacillus.Results. The results obtained indicate that the utero-vaginal biocenosis of healthy lactating cows is represented by microorganisms of the Lactobacillaceae family, including lactic acid enterococci and bacteria of the Leuconostocaceae family. The presence of representatives of the genera Aerococcus, Peptostreptococcus and Gardnerella vaginalis was found in the composition of the vaginal biocenosis in cows without signs of pathology of the birth canal. According to the results obtained, the vaginal population of lactic acid bacteria of the genus Lactobacillus has low or medium antagonistic activity against test cultures of indicatory strains of staphylococci and Escherichia.
Efficiency of grass-field crop rotation in the foothill zone of the RSO – Alania
Authors: Mamiev D. M. 
Published: January 2022

Relevance. Crop rotations remain a key element of modern agricultural systems and solve the whole range of tasks for the rational use of land, the reproduction of soil fertility, its protection from erosion, the protection of the environment and the entire agricultural landscape.Methodology. Field studies were conducted on leached chernozem with a close occurrence of pebbles in the conditions of the forest-steppe zone of the RSO – Alania. The experiment was placed by the method of organized repetitions, the repetition of the experiment is three-fold, the variants were placed by the method of trial plots, the shape of the plot is rectangular. The total area of the plot is 240 m2, the accounting area is 186 m2. The tab of experiments, phenological observations, and statistical processing of the obtained data were carried out according to the generally accepted methods described in the educational and methodological manual of Adinyaev E.D., Abaev A.A., and Adaev N.L. (2013).Results. In the conditions of the foothill zone of the RSO – Alania, the studied crops of the grass-field crop rotation had a positive effect on the structural and aggregate properties of the soil, the water resistance of soil aggregates, as well as on the productivity and energy potential of the cultivated crops. Clover and winter wheat had the most favorable effect on the soil structure, having a longer growing season, a welldeveloped root system, providing better protection of the soil in autumn and spring from the destructive effects of atmospheric precipitation. Row crops in this respect had a low rating. The ability to form structures in potatoes is particularly weak. As a result of the research, it was found that the studied soil has a good structural condition, since it contains from 52.1 to 55.8% of water-bearing aggregates. It was found that the volume mass varied for all crops of the crop rotation. By the end of the growing season, almost all variants showed a tendency to increase the volume mass. In general, the average soil density under all crops was optimal throughout the study period. The highest yield of feed units was noted for the following variants: oats + clover – 9.83 t/ha, clover – 9.49 t/ha, corn – 9.49 t/ha. More digestible protein was contained in the clover crop, the rest of the crops were about the same level. The grass link is more productive, where the collection of feed units and digestible protein significantly exceeded the indicators of the rowed link (7.96 t/ha – grass link and 6.33 t/ha – rowed link).
Régimen jurídico aplicable a los miembros del nivel ejecutivo de la Policía Nacional para el reconocimiento de la asignación de retiro: análisis jurisprudencial de sentencias de los Juzgados y el Tribunal Administrativos de Bolívar
Authors: Beltrán Barrios Érika , Zamora Mestra Martha 
Published: January 2022

Este artículo se ocupa del problema jurídico que se suscita en la aplicación de dos normas para el reconocimiento de la asignación de retiro del Nivel Ejecutivo de la Policía Nacional y así contribuir a una mejor comprensión de un objeto de estudio que merece especial atención. El tiempo mínimo de servicio exigido para alcanzar la prestación de naturaleza económica, mensual y vitalicia luego de finalizar la relación laboral administrativa con el Estado ha sido objeto de modificaciones por el Gobierno nacional mediante leyes y decretos reglamentarios. Estas normas sucesivamente han sido declaradas nulas total o parcialmente por el Consejo de Estado, situación que ha conllevado a que acudan ante las instancias jurisdiccionales en búsqueda de la protección de los derechos que consideran han sido vulnerados. Del análisis normativo y jurisprudencial realizado a los fallos emitidos en los años 2015, 2016, 2017 y 2018 por los Juzgados Administrativos de Cartagena en primera instancia para reconocer la asignación de retiro surgieron dos tesis. la primera aplica el Decreto 1212/1990 y la segunda el Decreto 1858/2012 y al desatar la segunda instancia el Tribunal Administrativo de Bolívar adoptó una posición intermedia, evidenciándose una interpretación exegética en aplicación de una integración normativa al emplear los dos estatutos.
Del estudio del método de interpretación exegético en la aplicación de la ley, los resultados de la investigación indican que el Decreto 1858/2012 se torna como suficiente para resolver el problema jurídico planteado al contener todos los elementos y garantías necesarias para acceder al reconocimiento de la prestación periódica y no incurrir en el fenómeno jurídico de la inescinbilidad de la norma al traer elementos de dos estatutos para una misma solución.
Predictores de extubación fallida en el paciente pediátrico y neonatal
Authors: Puello Ávila Antonio Carlos , Peñaranda Ortega Diana 
Published: January 2022

Introducción: uno de los aspectos de mayor relevancia en el cuidado intensivo pediátrico y neonatal, es el manejo de la ventilación. Los efectos adversos de la ventilación prolongada son deletéreos, principalmente a nivel pulmonar y están relacionados con aumento de la morbilidad y mortalidad. La decisión de extubar un paciente tiene consecuencias considerables, ya que tanto retrasar la extubación, como la extubación fallida también se asocia con una mayor duración de la ventilación mecánica y un aumento de la morbimortalidad. Las diferencias anatómicas de esta población hacen que sea más susceptible a resultados adversos o fracasos en el manejo de la vía aérea, y muchas de estas decisiones médicas se basan en experiencia y carecen de un adecuado soporte científico.
Objetivo: hacer una revisión acerca de los predictores de extubación fallida en pacientes en edad pediátrica y neonatal.
Métodos: se realizó una búsqueda de la literatura a través de PubMed, la búsqueda web de Google Scholar y la base de datos Cochrane de revisiones sistemáticas utilizando términos de búsqueda relevantes.
Resultados: el mayor conocimiento de la anatomía y la estandarización de protocolos en el manejo de la vía aérea del paciente pediátrico permite disminuir la incidencia de extubación fallida.
Conclusión: el desarrollo de prácticas seguras con suficiente evidencia científica permite disminuir la morbimortalidad de esta población.
Melanoma y Queratosis Seborreica: a propósito de dos casos de difícil diagnóstico
Authors: Arciniegas Grisales Valeria , Jiménez Oliveros Claudia , González Álvarez Tatiana , Flórez Harvey Andrés 
Published: January 2022

Introducción: la queratosis seborreica es un tumor epidérmico común, no melanocítico, benigno, que se presenta alrededor de los 30 años, que no requiere confirmación histopatológica para realizar su diagnóstico. Sin embargo, en ocasiones, las características clínicas y dermatoscópicas no son específicas, lo que dificulta su diferenciación de un melanoma, neoplasia cutánea con alta tasa de mortalidad.
Caso clínico: en este artículo se presenta el caso de un paciente que consultó por una lesión con apariencia clínica de queratosis seborreica y el reporte histopatológico lo definió como melanoma, y en contraste, se presenta otro paciente con lesión clínica sugestiva de melanoma cuya patología reportó queratosis seborreica.
Conclusión: al tener un alto índice de sospecha de melanoma, resulta indispensable realizar un estudio histopatológico y llevar a cabo una correcta correlación clínica-dermatoscópica-histopatológica.
Diagnóstico incidental de apendicitis aguda por colonoscopia, reporte de un caso
Authors: Aguancha Segebre Iván , Araneda Muñoz Gonzalo , Ceriani Bravo Alejandro , Arrieta Pérez Gabriel Antonio , Vega Stieb Jorge , Palma Carvajal Francisco 
Published: January 2022

Introducción: la apendicitis aguda es una de las causas más comunes de abdomen agudo y una de las indicaciones más frecuentes de cirugía abdominal de urgencia. Se presenta con mayor frecuencia entre la segunda y tercera década de la vida, siendo más alta en el grupo etario entre los 10-19 años. Se presenta un caso de un paciente al cual se le diagnosticó de forma incidental una apendicitis aguda mediante colonoscopia, en el contexto de estudio por baja de peso.
Caso clínico: paciente masculino de 47 años, con antecedentes de hipertensión arterial, consulta por baja de peso sin síntomas específicos. Al examen físico no se encontraron alteraciones de importancia y en los exámenes clínicos no se evidenció elevación de los parámetros inflamatorios, ni anemia. Se realizó inicialmente una endoscopia digestiva alta, que fue reportada normal y posteriormente colonoscopia, que mostró fosa apendicular prominente con salida espontánea de material de aspecto purulento por orificio apendicular y diverticulosis sigmoidea. Se realizó tratamiento antibiótico y apendicectomía laparoscópica diferida, informándose en el estudio histopatológico una apendicitis aguda.

Conclusiones: la apendicitis es una de las causas más frecuentes de abdomen agudo e indicación más común de cirugía abdominal de emergencia. Actualmente su diagnóstico es fundamentalmente clínico y no hay ninguna presentación clínica que prediga con precisión la presencia de la enfermedad, describiéndose en la literatura varias presentaciones atípicas. En ocasiones el diagnóstico puede especificarse mediante laparoscopia exploratoria o incluso mediante procedimientos endoscópicos, en los casos en que los exámenes clínicos no son concluyentes.
Insight to Edifice of Moving Message Boards
Authors: Niyi Madandola Tajudeen , Niyi Sakariyay Sherif , Olalekan Oyelowo Philip 
Published: January 2022

The most significant means of communicating from a computer to an individual is moving message boards also called Text Electronic Display. It is an element of a sign that is capable of displaying words, symbols, figures, or images that electronically or mechanically change by remote or automatic means. It is based on light-emitting diodes and it is connected in an array flat form. It is useful for creating attention-getting messages presentations, advertisements and location identifiers. The 1024 counter enables the information to be displayed sequentially as desire. The driver unit uses transistor to amplify the signal strength of the counter output. The output unit enables the information to be displayed using light emitting diodes (LEDs). Micro-controller AT89C51 provides output to control the logic levels for the sixteen rows of 32 by 16 matrix edifice.
Analisis Pendampingan Lansia yang Mengalami Penyakit Rheumatoid Arthritis pada Lembaga Kesejahteraan Sosial di Aceh
Authors: Iskandar Iskandar , Mulfianda Riyan 
Published: January 2022

Pendampingan lansia di Lembaga Kesejahteraan Sosial saat ini umumnya dilakukan oleh pekerja sosial bukan bidang kesehatan. Hal ini berpotensi terjadi kelemahan dalam perawatan lansia yang mengakibatkan menurunnya kondisi kesehatan lansia terutama yang mengalami penyakit kronik rematik. Penelitian ini bertujuan melakukan analisis pendampingan lansia yang mengalami penyakit rheumatodi arthritis pada lansia yang tinggal di panti jompo Darussa’adah Lhokseumawe provinsi Aceh. Desain penelitian ini menggunakan kuantitatif deskriptif dengan analisis descriptive statistics. Populasi dalam penelitian ini adalah seluruh lansia yang mengalami rematik dan jumlah sampel berjumlah 36 responden dengan teknik purposive sampling. Hasil analisis univariat menunjukkan pendampingan yang dilakukan oleh pendamping lansia paling banyak berkategori kurang, yaitu sebanyak 19 responden (52.8%), monitoring negatif sebanyak 19 responden (52.8%), edukasi negatif sebanyak 21 responden (58.3%) dan motivasi kurang sebanyak 18 responden (50%). Hasil analisis bivariat menunjukkan ada hubungan pendampingan lansia dengan ketergantungan perawatan lansia yang mengalami masalah kesehatan kronis rematik (p value, 0.001). Pengelola Lembaga Kesejahteraan Sosial sebaiknya dapat berkoordinasi dengan Dinas Kesehatan setempat untuk meminta pendampingan dan perawatan lansia oleh perawat bagi lansia yang mengalami penyakit kronis rematik.
Analisis Pengujian terhadap Model Aplikasi Sistem Pakar Diagnosis Penyakit Paru-Paru Berbasis Web
Authors: Kurniawan Mohamad Aghust , Ariprawira Galih , Sitanggang Andri Sahata 
Published: January 2022

Data dari Indonesian Cancer Information & Support Center (CISC) menunjukkan kanker paru-paru merupakan kanker pembunuh nomor satu di Indonesia dengan total 14 persen dari kematian karena kanker. Angka kematiannya bahkan mencapai 88 persen. Penanganan yang dapat dilakukan adalah melakukan pemeriksaan sejak dini melalui sistem pakar. Tujuan dari penelitian ini adalah untuk merancang sebuah sistem pakar diagnosis penyakit paru-paru berbasis web yang dapat membantu masyarakat untuk melakukan konsultasi penyakit paru-paru tanpa harus datang langsung ke rumah sakit, puskesmas atau dokter. Dalam pembuatan model aplikasi sistem pakar menerapkan metode desktiptif dan tindakan (aksi). Sedangkan dalam melakukan perancangan sistem pakar tersebut, metode yang digunakan adalah metode pendekatan berorientasi objek dan metode pengembangan prototype. Hasil penelitian terdiri dari beberapa tahapan, yaitu (1) Analisis ke dalam model/rancangan/prototype aplikasi, (2) Pengujian Model/Prototype, and (3) Perbaikan Model/Rancangan/Prototype Sistem Pakar. Peneliti mengharapkan adanya sistem pakar ini akan mempermudah masyarakat untuk mendapatkan pelayanan informasi secara langsung mengenai penyakit paru-paru dan diagnosis penyakit paru-paru serta membantu dokter untuk melakukan pengawasan pengobatan terhadap pasien.
Real-Time Motion Analysis System Using Low-Cost Web Cameras and Wearable Skin Markers
Authors: Lee Kun-Do , Park Hyung-Soon 
Published: January 2022

COVID-19 has restricted outdoor exercise and hospital visits for rehabilitation therapy. Home-based training and rehabilitation coaching systems have emerged as a way to overcome these circumstances. Conventional optical motion-capture systems, such as VICON, have been used for measuring precise movement and providing posture feedback during exercise or rehabilitation; however, its application is limited to professional facilities because of its high cost and space requirement. To extend the applicability to home-based use, we designed wearable skin markers (WSMs) with body segment-specific patterns that can be detected by low-cost web cameras. WSMs are band-shaped and stretchable and thus can be worn like cloth, with minimal effort for placement. The body segment-specific patterns enable real-time data processing, which reduces the marker data post-processing time. A 6-degree-of-freedom (DOF) pose for each WSM is obtained by recognizing the segment-specific patterns; the 3D configuration of the contoured corners of the patterns found by triangulation is then utilized to construct the coordinates of each WSM. The WSM system was validated via three experiments. The robustness of marker recognition was evaluated by measuring the false-positive and false-negative rates of WSM. For accuracy validation, the angle estimation results were obtained for the mechanical joint of a 3-DOF gimbal and lower-limb joints of a walking human subject and compared to the reference systems. The gimbal experiment was included to evaluate the accuracy of our system in the condition with no skin movement artifact. The maximum standard deviation of the difference between WSM and the encoder was 0.9° for the gimbal experiment, and that between WSM and VICON was 5.0° for the human experiment. The accuracy was comparable to the reference systems, making it suitable for home environment application.
Improvement of the Stability and Activity of an LPMO Through Rational Disulfide Bonds Design
Authors: Zhou Xiaoli , Xu Zhiqiang , Li Yueqiu , He Jia , Zhu Honghui 
Published: January 2022

Lytic polysaccharide monooxygenases (LPMOs) oxidatively break down the glycosidic bonds of crystalline polysaccharides, significantly improving the saccharification efficiency of recalcitrant biomass, and have broad application prospects in industry. To meet the needs of industrial applications, enzyme engineering is needed to improve the catalytic performance of LPMOs such as enzyme activity and stability. In this study, we engineered the chitin-active CjLPMO10A from Cellvibrio japonicus through a rational disulfide bonds design. Compared with the wild-type, the variant M1 (N78C/H116C) exhibited a 3-fold increase in half-life at 60°C, a 3.5°C higher T5015, and a 7°C rise in the apparent Tm. Furthermore, the resistance of M1 to chemical denaturation was significantly improved. Most importantly, the introduction of the disulfide bond improved the thermal and chemical stability of the enzyme without causing damage to catalytic activity, and M1 showed 1.5 times the specific activity of the wild-type. Our study shows that the stability and activity of LPMOs could be improved simultaneously by selecting suitable engineering sites reasonably, thereby improving the industrial adaptability of the enzymes, which is of great significance for applications.
Optimal PID Tuning of PLL for PV Inverter Based on Aquila Optimizer
Authors: Guo Zhengxun , Yang Bo , Han Yiming , He Tingyi , He Peng , Meng Xian , He Xin 
Published: January 2022

Phase-locked loop (PLL) is a fundamental and crucial component of a photovoltaic (PV) connected inverter, which plays a significant role in high-quality grid connection by fast and precise phase detection and lock. Several novel critical structure improvements and proportional-integral (PI) parameter optimization techniques of PLL were proposed to reduce shock current and promote the quality of grid connection at present. However, the present techniques ignored the differential element of PLL and did not acquire ideal results. Thus, this paper adopts Aquila optimizer algorithm to regulate the proportional-integral-differential (PID) parameters of PLL for smoothing power fluctuation and improving grid connection quality. Three regulation strategies (i.e., PLL regulation, global regulation, and step regulation) are carefully designed to systematically and comprehensively evaluate the performance of the proposed method based on a simulation model in MATLAB/Simulink, namely, “250-kW Grid-Connected PV Array”. Simulation results indicate that PLL regulation strategy can effectively decrease power fluctuation and overshoot with a short response time, low complexity, and time cost. Particularly, the Error(P) and the maximum deviation of output power under optimal parameters obtained by PLL strategy are decreased by 418 W and 12.5 kW compared with those under initial parameters, respectively.