bluuebunny/crossref_metadata_2025 huggingface dataset:
INVESTIGATION OF TRANSIENTS IN A SUBMERSIBLE ELECTRIC MOTOR WITH A DOWNHOLE COMPENSATOR
Authors:   Industrial University of Tyumen, Tyumen, Russia, Markova A. A. , Kopyrin V. A. ,   Industrial University of Tyumen, Tyumen, Russia, Deneko M. V. ,   Industrial University of Tyumen, Tyumen, Russia, Khamitov R. N. ,   Omsk State Technical University, Omsk, Russia; Industrial University of Tyumen, Tyumen, Russia, Logunov A. V. ,   Industrial University of Tyumen, Tyumen, Russia
Published: June 2021

На сегодняшний день повышение энергоэффективности добычи нефти - важная задача. Основным потребителем электроэнергии в структуре электротехнического комплекса установки электроцентробежных насосов является погружной асинхронный электродвигатель. Коэффициент мощности данных типов электродвигателей варьируется от 0.75 до 0.85, что приводит к увеличению потерь в токопроводящих элементах комплекса. Одним из перспективных способов повышения коэффициента мощности погружных асинхронных электродвигателей является использование внутрискважинных компенсаторов реактивной мощности. Тем не менее, в ходе опытно-промышленных испытаний зафиксированы случаи ложного срабатывания устройств защиты внутрискважинных компенсаторов при отключении станции управления, что влечет за собой уменьшение энергоэффективности добычи нефти. Целью данной работы является исследование переходных процессов в погружном асинхронном электродвигателе, оснащенным внутрискважинным компенсатором, при отключении источника питания...
EFFECT OF THE NOISE COMPONENT OF THE APERTURE UNCERTAINTY ON THE DYNAMIC RANGE OF THE SAMPLE AND HOLD CIRCUIT
Authors:   Omsk State Technical University, Omsk, Russia, Zhenatov B. D.
Published: June 2021

В данной статье рассмотрен вопрос влияния шумовой компоненты апертурной неопределенности на динамический диапазон устройства выборки и хранения (УВХ). С этой целью построена математическая модель УВХ, которая представлена в виде идеального дискретизатора, на входе которого включен функциональный блок, имитирующий искажения дискретизируемого колебания в реальном УВХ. Получено аналитическое выражение, позволяющее показать, что шумовая компонента апертурной неопределенности порождает частотные искажения входного сигнала и дополнительный шум, свойства которого определяются характеристиками апертурной неопределенности и дискретизируемого колебания.
NUMERICAL STUDY OF FLOW IN A PLANE SUDDENLY EXPANDING CHANNEL BASED ON TWO-LIQUID TURBULENCE MODEL AND WILCOKS MODEL
Authors:   Akfa University, Tashkent, Uzbekistan, Malikov Z. M. , Nazarov F. Kh. ,   Tashkent state technical university, Tashkent, Uzbekistan, Omonov Z. J. ,   Tashkent state technical university, Tashkent, Uzbekistan, Abdukhamodov S. K. ,   Tashkent state technical university, Tashkent, Uzbekistan
Published: June 2021

В статье представлены результаты численного исследования структуры течения в плоском канале в зоне его внезапного расширения. Расчеты выполнены на основе двухжидкостной модели турбулентности и модели турбулентности Уилкокса. Стационарное решение задачи получено методом установления, для чего использовались нестационарные уравнения гидродинамики. В работе исследованы поля скорости и турбулентные напряжения потока, а также коэффициент сопротивления в различных участках канала. Основные расчеты выполнены на равномерной сетке с числом узлов 300×90. Для разностной аппроксимации исходных уравнений применен метод контрольного объема второго порядка по пространству. Корректность результатов подтверждена для чисел Рейнольдса Re = 36000 путем сравнения с найденными в литературе экспериментальными данными.
THE USE OF LIGHT FRACTIONAL COMPOSITION FUELS IN THE ELECTRIC TORCH OF A DIESEL ENGINE
Authors:   Moscow Polytechnic University, Moscow, Russia, Kaminsky V. N. , Kostyukov A. V. ,   Moscow Polytechnic University, Moscow, Russia, Kolunin A. V. ,   Khrulev Military Academy of Logistics of the Ministry of Defense of the Russian Federation, Saint-Petersburg, Russia, Materi I. V. ,   Khrulev Military Academy of Logistics of the Ministry of Defense of the Russian Federation, Saint-Petersburg, Russia
Published: June 2021

Проблемным вопросом при эксплуатации автомобильной техники в условиях отрицательных температур холодного климата является пуск дизельного двигателя после продолжительной стоянки. Промышленностью выпускается специальное вспомогательное оборудование. Широкое распространение в этой связи получили генераторы теплоты - индивидуальные и групповые подогреватели пламенного и инфракрасного типов, обеспечивающие решение задач предпусковой подготовки. Кроме того, существуют средства облегчения пуска. Известно, что на надёжный пуск дизельного двигателя влияют такие факторы, как температура воздушного заряда, момент вращения коленчатого вала, условия распыливания топлива, активность теплообменных процессов и герметичность сопряжений деталей цилиндропоршневой группы. Эффективное решение обозначенной проблемы видится в применении топлив лёгкого фракционного состава электрофакельным устройством или так называемым газоэлектрофакельным устройством.
Effects of methods and systems of the primary soil tillage on the yields of seed, vegetable oil and protein of soybean and spring rapeseed in the first crop rotation cycle
Authors:   Lipetsk Research Institute of Rapeseed, Savenkov V.P. , Dedov A.V. ,   Voronezh State Agricultural University named after Emperor Peter the Great, Khryukin N.N. ,   Soufflet Agro Rus
Published: June 2021

We studied the influence of various methods and systems of the primary soil tillage on the yields of seeds, vegetable oil and protein of soybean and spring rapeseed at the All-Russian Rapeseed Research Institute (Lipetsk, Lipetsk region) in 2015–2018. In the field crop rotation (soybeans, winter wheat, spring rapeseed and barley), four systems of the primary soil tillage have been carried out, these are conventionally referred to as: moldboard-surface tillage, moldboardsurface tillage with deep loosening, moldboardsurface tillage with shallow loosening and minimal treatment (subsurface). The soil at the experimental field was leached, heavy clay loam chernozem. The weather conditions during the vegetative period varied according to the years of the research, which affected the seed yield and quality of soybean and spring rapeseed. We revealed the largest and relatively equal yields of seeds, vegetable oil and protein per a hectare of soybean and spring rapeseed was provided by moldboard-surface tillage (plowing under soybean and rapeseed, surface tillage for winter wheat and barley) and moldboard-surface tillage with deep loosening (deep subsurface loosening under soybean, plowing under spring rapeseed and surface tillage under winter wheat and barley), and the lowest yield was obtained using minimal soil treatment (chisel plowing under spring rapeseed and surface tillage under soybean and cereal crops). The quality of seed yield of oil crops in the studied experimental variants was practically equal. At the same time, in general, during the experimental period, the yield and the total yields of vegetable oil and protein of spring rapeseed were significantly higher than those of soybean.
Anterior transpetrosal resection of the lower ventral pontine cavernous malformation: A technical case report with operative video
Authors: Tsunoda Sho , Inoue Tomohiro , Segawa Masafumi , Akabane Atsuya
Published: June 2021

Background:

Surgical treatment of pontine cavernous malformations (CMs) is challenging due to the anatomical difficulties and potential risks involved. We successfully applied an anterior transpetrosal approach (ATPA) to remove a lower ventral pontine CM, and herein we discuss the outline of our procedure accompanied by a surgical video.

Case Description:

A 50-year-old woman presenting with progressively worsening diplopia was urgently admitted to our hospital. Preoperative images showed a lower ventral pontine CM compressing the corticospinal tract posteriorly. Considering the location of the CM, we determined that an ATPA was the appropriate approach to achieve a more anterolateral trajectory. We performed extradural anteromedial petrosectomy and penetrated the brainstem from the point just below the anterior inferior cerebellar artery and above the root exit zone of the abducens nerve, which might be located in the somewhat lowest border of actual maneuverability in the ATPA. Maneuverability through this corridor was sufficient without hindering and darkening the high magnification microscopic view, as demonstrated in our surgical video.

Conclusion:

This report demonstrates surgical treatment of a lower ventral pontine CM using the ATPA. The surgical video we present provides information that is useful for understanding this technique’s maneuverability and working window.
Gloves Perforations in Minor Oral Surgical Procedures: A Comparison of Latex and Nitrile Gloves
Authors:   Sir Syed College of Medical Sciences, (Dental Section), Karachi, Kumar Ajeet , Iqbal Naveed , Farooq Javaria , Siddiqui Saad Uddin
Published: June 2021

OBJECTIVE: This study was performed to compare incidence of perforations in Latex and Nitrile examination gloves during Minor Oral surgical procedures performed under local anesthesia. METHODOLOGY: 100 pairs of latex and 100 pairs of Nitrile examination gloves where used to perform 200 minor oral surgical procedures under local anesthesia. After completion of every minor oral surgical procedure each gloves was examined by Water Inflation method to observe presence or absence of Perforations. A data sheet was used to collect data including type of Gloves used (Latex or Nitrile) presence of perforations, sites of perforations and nature of minor oral surgical procedures. Data was entered and analyzed using SPSS version 20. Descriptive analysis was conducted to calculate frequency and percentages of Number and sites of perforations for both Nitrile and latex examination gloves. Chi Square test was used to find out statistical significance of difference of perforations rate between Nitrile and Latex gloves. P value of < 0.05 was considered significant. RESULTS: Out of 200 latex gloves 23 (11.5) had 29 perforations whereas out of total 200 Nitrile gloves 28 (14%) had 22 perforations. Nitrile gloves had a statistically significant higher rate of perforations as compared to Latex gloves. (P value 0.043). For both Nitrile and Latex gloves left non dominant hand had highest frequency of perforations Latex 18 (81.81%) perforations and Nitrile 18(62.06%). Index finger and thumb were most frequent sites of perforations in both Latex and Nitrile gloves. CONCLUSION: Gloves perforations were more common in Nitrile examination gloves however total number of perforations was more in Latex examination gloves.
Effect of Bite Opening on the Correction of Dental Anterior Cross Bite – A Novel Approach
Authors:   Pakistan Institute Medical Sciences, Islamabad, Zalan Abul Khair , Maxood Anser , Haroon Dalili Mohammad , Zaman Hira , Khalil Zubairy Khadeejah , Babar Palwasha , Anser Miraat
Published: June 2021

OBJECTIVES: To correct dental origin anterior crossbite by placement of Glass Ionomer cement occlusal stops on mandibular first permanent molars for maximum of two weeks. METHODOLOGY: 16 patients (age: 7-11 years) with dental anterior crossbite were treated by placement of Glass Ionomer cement occlusal stops on mandibular first permanent molars for maximum of 2 weeks to create 1mm anterior open bite. The patients were then recalled after 1 month, 3 months and 6 months for follow up visits. Fisher’s exact test applied using SPSS version # 25. RESULTS: 13 out of 16 patients were treated successfully within two weeks of placement of occlusal stops. Follow-up at six months showed no relapse in any of the corrected cases. CONCLUSION: Placement of glass ionomer cement occlusal stops for two weeks on mandibular first permanent molars is an easy approach to correct dental anterior crossbite. KEYWORDS: Crossbite, Malocclusion, Glass ionomer cement, Corrective orthodontics
Zencefilin (Zingiber officinale Roscoe) Diazinon Toksisitesine Karşı Koruyucu Rolünün Allium cepa L. Meristem Hücrelerinde Araştırılması
Authors: ÇAVUŞOĞLU Kültiğin , MACAR Oksal , KALEFETOĞLU MACAR Tuğçe , YALÇIN Emine
Published: June 2021

Yaygın olarak kullanılan bir pestisit olan diazinon hedef olmayan canlılar üzerinde toksik etkilere sahiptir. Bu çalışma, diazinonun meristem hücrelerinde teşvik ettiği toksisiteye karşı zencefilin koruyucu ve iyileştirici etkisini fizyolojik, genotoksik ve biyokimyasal parametrelerle araştırmayı hedeflemiştir. Ayrıca kök meristem hücrelerinde meydana gelen hasarlar incelenmiştir. Bu amaçla A. cepa soğanları 6 gruba ayrıldı (kontrol, 240 mg/L zencefil, 480 mg/L zencefil, 500 mg/L diazinon, 500 mg/L diazinon + 240 mg/L zencefil ve 500 mg/L diazinon + 480 mg/L zencefil). Diazinon süperoksit dismutaz aktivitesi, katalaz aktivitesi, malondialdehit seviyesi, mikronükleus sıklığı, kromozomal anormallik yoğunluğu ve meristematik hücre hasarlarını arttırmış; ancak mitotik indeksi, çimlenme yüzdesi, kök uzunluğu, ağırlık artışı azaltmıştır. Zencefil, diazinon ile birlikte uygulandığında doza bağlı olarak tüm bu toksisite göstergelerini düşürmüştür. Bu çalışma, A. cepa modeli kullanılarak diazinonun hedef olmayan organizmalar üzerindeki toksik etkilerine karşı zencefilin koruyucu bir rolünü açıkça göstermiştir.
EVALUASI SISTEM PELAKSANAAN MANAJEMEN PEMELIHARAAN ALAT MEDIS DI INSTALASI PEMELIHARAAN DAN PERBAIKAN PERALATAN MEDIS RUMAH SAKIT (IP3MRS) RSUD ARIFIN ACHMAD PROVINSI RIAU TAHUN 2020
Authors: Auliani Istiana
Published: June 2021

Latar Belakang: Instalasi Pemeliharaan dan pebaikan peralatan medis rumah sakit (IP3MRS) salah satu Instalasi di RSUD Arifin Achmad Provinsi Riau berkegiatan menunjang pelayanan Kesehatan dan bertanggung jawab terhadap peralatan medis.

Tujuan: Mengevaluasi sistem pelaksanaan Manajemen Pemeliharaan dan pebaikan peralatan medis rumah sakit di RSUD Arifin Achmad Provinsi Riau.

Metode: Penelitian kualitatif dengan pendekatan deskriptif. Pengambilan sampel dengan metode purposive sampling. Jumlah informan terdiri dari informan pangkal Kepala dan staf, fasilitas pelayanan Medik, informan Kunci Kepala keuangan.

Hasil: Jumlah (SDM) belum sesuai dengan Permenkes, besaran dana dialokasikan untuk kegiatan harian pemeliharaan alat medis cukup, bahan baku disediakan belum sepenuhnya terpenuhi kebutuhan, peralatan dan fasilitas pengadaan alat medis belum memadai, kebijakan terkait pemeliharaan alat medis sudah disosialisasikan dengan baik, pelaksanaan perencanaan kegiatan pemeliharaan alat medis dilaksanakan pada setiap tahunnya, struktur organisasi dan pembagian kerja tidak memiliki hambata, pelaksanaan yang dijalankan merujuk kepada program serta standar operasional (SPO),pengawasan kegiatan pemeliharaan alat medis meliputi pemeriksaan laporan kegiatan pemeliharaan, sistem evaluasi pemeliharaan sudah berjalan dengan baik.

Simpulan: Secara umum Sistem Pelaksanaan Manajemen Pemeliharaan Alat Medis di (IP3MRS) RSUD Arifin Achmad Provinsi Riau yang dilihat dari tujuan peneliti, terkait SDM, Ketersediaan Dana, Ketersediaan Peralatan dan Fasilitas, Suku Cadang, Kebijakan Pemeliharaan, Perencanaan, Pengorganisasian, Pengawasan, Dan Evaluasi ada beberapa yang belum optimal

Saran: Disarankan dapat menambahkan SDM guna mengantisipasi resiko beban kerja, pembelian suku cadang baru yang dibutuhkan agar alat yang rusak lebih cepat ditangani, fasilitas Gedung IP3MRS dan gudang penyimpanan suku cadang agar dapat dipisah sehingga staf dapat bekerja dengan baik.
A Computational and Literature-Based Evaluation for a Combination of Chiral Anti-CoV Drugs to Block and Eliminate SARS-CoV-2 Safely
Authors: Suhail Mohd.
Published: June 2021

It has been a great challenge for scientists to develop an anti-covid drug/vaccine with fewer side effects, since the coronavirus began. Of course, the prescription of chiral drugs (chloroquine or hydroxychloroquine) has been proved wrong because these chiral drugs neither kill the virus nor eliminate it from the body, but block SARS-CoV-2 from binding to human cells. Another hurdle in front of the world, is not only the positive test of the patient recovered from coronavirus but also the second wave of Covid 19. Hence, the word demands such a drug or drug combination which not only prevents the entry of SARS-CoV-2 in the human cell but also eliminates it or its material from the body completely. The presented computational study explains (i) why the prescription of chiral drugs was not satisfactory (ii) what types of modification can make their prescription satisfactory (iii) the mechanism of action of chiral drugs (chloroquine and hydroxychloroquine) to block SARS-CoV-2 from binding to human cells, and (iv) the strength of mefloquine to eliminate SARS-CoV-2. As the main protease (Mpro) of microbes is considered as an effective target for drug design and development, the binding affinities of mefloquine with the main proteases (Mpros) of JC virus and SARS-CoV-2, were calculated, and then compared to know the eliminating strength of mefloquine against SARS-CoV-2. The main protease (Mpro) of JC virus was taken because mefloquine has already shown a tremendous result of eliminating it from the body. The current study includes the docking results and literature data in support of the prescription of a combination of S-(+)-hydroxychloroquine and (+) mefloquine. Besides, the presented study also confirms that the prescription of only hydroxychloroquine would not be so effective as in combined form with mefloquine.
Validated stability-indicating method for estimation of related substances of paroxetine in active pharmaceutical ingredient and its pharmaceutical dosage forms
Authors: Surapuraju Pavan Kumar Raju  , Raveendra Reddy J
Published: June 2021

Validated stability-indicating analytical method was established for the quantitative determination of paroxetine and its related substances in API and it’s finished product in the presence of degradation products. To prove the stability-indicating nature of the method, stress studies were carried out. The method was developed by using (Waters, symmetry C18, 250×4.6 mm, 5 μm column) employing water:THF: TFA 90:10:1 (v/v/v) as mobile phase-A and mobile phase-B consist of ACN:THF: TFA the proportion of 90:10:1 (v/v/v) in a gradient mode with a flow rate of 1.5 mL/min was chosen. The column and sample cooler were kept at 45°C and 5°C respectively and 285 nm used as detection wavelength. Significant degradation observed in alkaline conditions, whereas no signification decay in drug stability was observed in other decomposition environments. Method development as well as optimisation studies were done by analysing the samples generated in the stress studies and spiked samples. Mass balance was found to be in the range of 90.3 and 100.1%, signifying the method is stability-indicating. All earlier analysis methods for the analysis of paroxetine have not been entirely validated by considering all the degradation products. The established method validated as per ICH Q2 (R1) and considered as linear, specific, accurate, precise, rugged, robust and found to be suitable for the routine and stability analysis of the product.
FRASA BAHASA MAIRASI (PHRASES IN MAIRASI LANGUAGE)
Authors: Maturbongs Antonius
Published: June 2021

Frase hanya mengisi satu fungsi dalam klausa. Untuk memperkuat klarifikasi di atas dikutip satu pengertian frasa pendukung yang dibuat oleh Elson Pickket dan (1976: 73), yaitu “Frasa tersusun unit a dalam A, berpotensi lebih dari dua kata atau lebih, biasanya selalu diperhatikan tingkat klausa." Tersirat di sini pengertian bahwa frasa hanya berpotensi terdiri dari dua kata atau lebih dan jelas tidak melebihi ciri klausa yaitu hanya satu fungsi kecuali predikat [hubungan/tautan] dan objek dalam frasa konsekuensi untuk mewakili pengisi gatra pada klausa. Kesamaan inilah yang dipakai sebagai dasar untuk mengidentifikasi frasa dalam analisis penelitian ini. Berawal dari teori yang dipakai dalam penelitian ini yaitu menganalisis tagmemik, maka pembahasan selanjutnya akan dibagi menjadi analisis fungsi, kategori, dan peran interior masing-masing frasa.
Kata Kunci: Frasa, bahasa Mairasi
 
Various meaning and definition phrase have been made by various writer, but is not quit of congeniality phrase as a group word. In consequence, phrase basically [is] word group. If/When seen from facet forming [of] phrase, can be said that [by] phrase [is] word [relation/link] with word and word with suprasegmental elements and also situation that [do] not exceed subjek function boundary and predikat in clause. Thereby, phrase to represent word corps ( word with word, word with suprasegmental elements and situation) representing part of which not yet complete in a[n broader tuturan namely discourse and sentence ( Fautngil, 1997: 5). Phrase only filling one function in clause. To strengthen clarification above cited one congeniality [of] phrase supporting [it] made by Elson Pickket and ( 1976: 73), namely " Phrase composed unit a in A, potentially, words more or two or, typically which but, always note but, level clouse a of slot fills." Implicit here congeniality that frase only have potency [to] consist of two word or more and clearly [do] not exceed clause characteristic namely only one function except predikat [relation/link] and object in consequence phrase to represent gatra filler in clause. This congeniality [is] weared as basis for identify phrase in this research analysi.  Starting from theory weared in this research namely analyse tagmemik, hence discussion hereinafter will be divided into function analysis, category, and role of[is each phrase interior.
Descolonizando sexualidades: enquadramentos coloniais e homossexualidade indígena no Brasil e nos Estados Unidos
Authors: Fernandes Estevão Rafael
Published: June 2021

A partir da comparação entre Brasil e Estados Unidos e fazendo uso de vasto material histórico e etnográfico, este livro investiga as várias formas de manejo moral dos povos indígenas utilizadas em sua incorporação compulsória ao sistema colonial, bem como as respostas por parte desses povos nos dois países. Tal comparação buscou incorporar as perspectivas two-spirit e as críticas coloniais a fim de compreender os caminhos a partir dos quais a subalternização da homossexualidade indígena passa a ser parte inerente da colonização. Nestas páginas vemos como a colonização equivale, necessariamente, a um aparato burocrático-administrativo, político e psicológico para normalizar as sexualidades indígenas, moldando-as à ordem colonial. Entretanto, tais práticas de disciplinamento não impedem respostas por parte dos indígenas cujas sexualidades operam fora do modelo hegemônico, de modo que tais formas de contestação nos permitem compreender melhor os movimentos indígenas, as relações interétnicas e as políticas indigenistas, assim como as relações de poder nestes dois contextos nacionais.
Equações diferenciais ordinárias e séries de potências
Authors: Seco Lucas , Patrão Mauro
Published: June 2021

As equações que descrevem o movimento e, de maneira mais geral, taxas de variação, são denominadas equações diferenciais ordinárias (EDOs). Neste livro, apresentamos uma introdução às EDOs na qual as séries de potências aparecem pela necessidade de resolver EDOs de coeficientes variáveis. Buscamos simplicidade e rigor, numa exposição autocontida, ilustrada por mais de 60 figuras e que dá ênfase aos conceitos essenciais e, ao mesmo tempo, a demonstrações acessíveis. Nas EDOs de 1a ordem, focamos apenas nas separáveis e nas lineares, que são os casos de maior aplicação e necessários para o desenvolvimento da teoria de ordem superior. O restante do livro é dedicado à teoria das EDOs lineares, começando pelas EDOs de 2a ordem. Obtemos a solução geral da homogênea via fórmula de Abel e, para coeficientes constantes, obtemos a existência de soluções fundamentais por meio do operador de derivação. No caso de coeficientes variáveis, primeiro procuramos soluções polinomiais, o que nos leva a equações de recorrência. Em seguida consideramos soluções dadas por séries de potências e questões relacionadas à convergência. Por último, consideramos equações de ordem superior e sistemas, focando no caso de coeficientes constantes. Usamos o operador de derivação para resolver as EDOs homogêneas de ordem superior e obter de forma rigorosa o método dos coeficientes a determinar. Usamos a transformada de Laplace para resolver EDOs e sistemas de EDOs com coeficientes constantes.
Memória da Educação a Distância na Universidade de Brasília
Authors: Gomes Ana Lúcia de Abreu , Fernandes Maria Lidia Bueno
Published: June 2021

O livro visa apresentar os sentidos atribuídos e as representações de alguns de seus inúmeros protagonistas sobre a educação a distância na UnB. É um projeto que ainda se encontra em andamento; entretanto, tendo em vista as comemorações dos 50 anos dessa universidade, avaliamos ser de fundamental importância trazer essas reflexões, ainda que ainda parciais, aos projetos de futuro da nossa universidade, certos da enorme contribuição daqueles que viveram intensamente essas experiências.
Interventional Vascular Surgery Guidance during the COVID-19 Pandemic
Authors: Abdelghaffar Mahmoud Amr
Published: June 2021

Background: The ongoing outbreak of the COVID-19 pandemic is considered a major public concern and has resulted in a huge burden on health care. We hereby provide a brief review for vascular surgeons regarding COVID-19 clinical issues, pathogenesis, diagnosis, and treatment approaches.Methods: We review the international society’s guidance on managing vascular interventions during the COVID-19 outbreak.Results: This work provides summarized descriptions of how to manage and deal with vascular surgery cases at time of COVID-19 outbreak, including measures at outpatient clinic, emergency room, and operations.Conclusions: Although vascular surgeons are not considered to be the front line in combating the COVID-19 pandemic, certain measures, detailed in this work, can be adopted in their practice during this period to control and lessen the spread of the disease.
برامج تنمية المرأة المعيلة ودورها في وقاية الأبناء من الانحراف دراسة مطبقة على المرأة المعيلة في جمعية إنسان بالمملكة العربية السعودية
Authors:   Social Sciences College  Naif Arab University, Alharthy Sultan , Soliman Hoda , Laheg Hadhyah , Alrashidi Najla
Published: June 2021

يركز هذا الكتاب على توفير مزيداَ من فرص وجود البيئة السوية للمرأة المعيلة بحيث تستطيع رفع مستوى دخلها وإعالة أبنائها بشكل يجعلهم في معزل عن الانحراف بكافة درجاته وصوره، وقد تطرق الكتاب إلى مفهوم المرأة المعيلة والمشكلات التي تواجهها وأثرها على تربية الأبناء بالإضافة إلى دور منظمات المجتمع المدني في مساعدة المرأة المعيلة والبرامج المتاحة. وقد وضع هذا الكتاب مجموعة من الحلول منها توفير الميزانيات اللازمة لبرامج تنمية المرأة المعيلة بما يتيح تقديم دعم مادي يغطي احتياجات الأسر، على القائمين على أمر برامج تنمية المرأة المعيلة العمل على مساعدة المرأة المتعثرة في سداد مديونيتها، وحث القائمين على أمر برامج تنمية المرأة المعيلة على توفير الخامات للازمة للمشروعات، وتعزيز عملية تسويق منتجات المرأة المعيلة من خلال برامج تنمية المرأة المعيلة.
الآثار الاقتصادية والاجتماعية للمخدرات على التنمية البشرية في الدول العربية: الأردن والكويت والمغرب ولبنان ومصر أنموذجًا
Authors:   Quds University State of Palestine, Rabee Afaf
Published: June 2021

هدفت هذه الدراسة إلى التعرف على الآثار الاجتماعية والاقتصادية للمخدرات على التنمية البشرية العربية، وكذلك على مجالات التعليم والصحة والدخل كمؤشرات للتنمية البشرية العربية، وقد طُبِّقَت الدراسة على خمس دول عربية (عينة الدراسة)، وهي: الأردن ومصر والكويت ولبنان والمغرب. وحاولت الدراسة رصد أغلب ما تم إنتاجه وبحثه حول الآثار الاجتماعية والاقتصادية للمخدرات على التنمية البشرية العربية، وتحليله للخروج بمجموعة من النتائج والتوصيات على مستوى الإقليم العربي التي تضع المسؤولين وأصحاب القرار وأفراد المجتمعات العربية أمام مسؤولية مجتمعية كبيرة تحتاج إلى كل الجهود للحد من آثارها المدمرة على التنمية البشرية خاصة في مجالات الصحة والتعليم والدخل.         واستخدمت الدراسة المنهج الوصفي التحليلي وتحليل المضمون الذي يساعد على الوصول إلى بعض التعميمات والقضايا المتعلقة بالآثار المترتبة لتعاطي المخدرات على التنمية البشرية بمجالاتها الصحية والتعليمية والاجتماعية والاقتصادية في العالم العربي. وقد توصلت الدراسة إلى مجموعة من النتائج، منها: -       تنامي ظاهرة المخدرات في الوطن العربي بتسارع كبير على مستوى التعاطي والتجارة والزراعة، بشكلٍ سبق كافة الجهود المبذولة للحد منه على المستوى الرسمي والأهلي. -       انتشار المخدرات الكيميائية في كافة الأقطار العربية مُخَلِّفة آثارًا صحية واجتماعية عالية، وهي شديدة الخطورة على الصحة العقلية والنفسية والبدنية. وخلصت الدراسة إلى بعض التوصيات، منها: ضرورة تعديل المناهج الدراسية على مستوى الوطن العربي مع الأخذ في الاعتبار خصوصية كل دولة. دراسة النماذج العربية والعالمية حول سياسات الحد من المخدرات وأثرها في التنمية البشرية العربية. •        توفير برامج معالجة ومساندة تسهم في تأهيل المدمنين ودمجهم الفاعل في المجتمع.
Construção e apropriação de saberes docentes: um estudo sobre a importância de atividades acadêmico-científicas na formação de professores para o ensino de Matemática
Authors: Machado Marcelo Souza , De Lima Francisco José
Published: June 2021

Este trabalho foi desenvolvido com apoio do Programa Institucional de Bolsa de Iniciação Cientifica (PIBIC) e objetivou refletir sobre processos constitutivos de futuros professores, identificando atividades acadêmico-científica como ações formativas e espaços articuladores de saberes e fazeres na formação docente. Com enfoque qualitativo e abordagem descritiva, foi realizado o mapeamento de atividades desenvolvidas em um curso de Licenciatura em Matemática de uma instituição pública federal, no período de abril de 2018 a março de 2020. A partir do conjunto de ações levantadas, organizou-se três eixos para análise, a saber: 1. Palestras e mesas redondas como espaços para promoção ao debate, (re)construção de conhecimentos e desenvolvimento da aprendizagem docente; 2.  Encontros e seminários como espaços de formação recíproca e 3. Cursos de Extensão e Aperfeiçoamento, que foram discutidos a partir da perspectiva da Análise de Conteúdo. Conclui-se que no processo de formação inicial docente, além das disciplinas que compõem a matriz curricular, as atividades acadêmico-científicas se mostram importantes e se constituem em pressupostos formativos que possibilitam estudos, pesquisas e partilhas que implicam na aprendizagem de saberes para o exercício da docência, porém para que isso se materialize, concepções e visões institucionais precisarão convergir para a concretização de tais propostas.
Plant disease severity estimation by computer vision methods
Authors: Altukhov V. G.
Published: June 2021

The first stage results within the framework of the thesis “Investigation of computer vision methods and algorithms in the field of plant diseases detection” are presented. The analysis of the work related to the automatic assessment of plant disease severity was carried out. It was established that for solving problems in this field, convolution neural networks are promising methods, which are currently superior to classical methods of computer vision in terms of accuracy. To assess the severity degree, classification and segmentation architectures of convolutional neural networks are used. Classification architectures are able to take into account disease visual features at different stages of the disease development, but information about the actual affected area is unavailable. On the other hand, solutions based on segmentation architectures provide actual data on the lesion area, but do not grade severity levels according to disease visual features. Based on the result of the research into the application of convolutional neural networks and options for their use, the goal of this study was determined, which is to develop an automatic system capable of determining the lesion area, as well as to take into account disease visual features and the type of immunological reaction of the plant at different stages of disease progress. It is planned to build a system based on the segmentation architecture of a convolutional neural network, which will produce multi-class image segmentation. Such a network is able to divide image pixels into several classes: background, healthy leaf area, affected leaf area. In turn, the class "affected leaf area" will include several subclasses corresponding to the disease visual features at different stages of disease progress.
B. Nihan Eren’in Kör Pencerede Uyuyan adlı öykü kitabı üzerine bir inceleme
Authors: KARADENİZ Mustafa
Published: June 2021

Çağdaş Türk öykücülüğünün genç yazarlarından biri olan B. Nihan Eren’in Kör Pencerede Uyuyan adlı öykü kitabı, bilinçle kurgulanmış ve birbirine sıkıca bağlı yirmi öyküden oluşur. “Gece” ve “Gün” adlı iki bölümden oluşan kitaptaki öyküler, ortak bir zaman diliminde ve mêkanda geçer. Aynı zaman ve mekân üzerine kurgulanan öyküler, birbiriyle kesişerek birbirine işaret ederek ve birbirini aydınlatarak gelişir. Öykülerin içerdiği bu özellik, Kör Pencerede Uyuyan’a bir romandaki gibi bütünlüklü bir yapı da kazandırır. Başka öykücülerde sadece atmosfer oluşturmak için kullanılan nesne veya ayrıntılar, Eren’in öykülerinde olay örgüsünü aydınlatan bağlantı noktaları olarak işlev kazanır. Kitaptaki öykülerde yalnız, mutsuz, kaygılı, umutsuz, geçmişinde hayal kırıklıklarını ve terk edilmişlikleri barındıran muhtelif yaş gruplarına ait insanlarla karşılaşılır. Eren, aynı toplumsal yapı ve zaman diliminde yaşama tutunmaya çalışan “kırık hayatlar”dan manzaralar sunar. Bu manzaralar yoluyla, öykü karakterlerinin yaşadıklarının aslında toplumsal yapıya hâkim olumsuzluklardan kaynaklandığını ima etmeye çalışır. Kitaptaki öykülerde görünüşle gerçek arasındaki derin uçurum ve topluma hâkim ikiyüzlülük Eren’in eleştiri oklarının temel hedefi olur. Eren’in öykülerindeki bu kurgu ve içerik uyumu, dil ve anlatım tutumuyla da desteklenir. Kör Pencerede Uyuyan adlı öykü kitabına yönelik biçim, kurgu, dil ve muhteva eksenli bir inceleme bu makalenin temel konusunu oluşturmaktadır. Bu inceleme yoluyla Eren’in öykü anlayışının temel bileşenlerini ve bunların birbiriyle olan ilişkisini saptamaya çalışmak amaçlanmıştır.
Hüseyin Rahmi Gürpınar’ın İffet ve Son Arzu romanlarında hayal ve hakikat karşıtlığı
Authors: OYMAK Alparslan
Published: June 2021

İffet (1896) ve Son Arzu (1918), Hüseyin Rahmi Gürpınar’ın sonları facia ile biten iki romanıdır. Romanlar; ana karakterleri devirlerine göre eğitimli ve erdemli iki genç kızın, İffet ve Nuruyezdan’ın ölümüyle sona erer. Her iki eser de gerçek hayat hikâyelerine dayanmaktadır. Hüseyin Rahmi Gürpınar, İffet romanında olayın kahramanlarından biri olduğunu eserin önsözünde açıklar. Son Arzu’nun hikâyesi ise Nuruyezdan’ın eşi tarafından kendisine aktarılmıştır. Yazarın bu romanlarla öncelikle dönemin toplumsal yapısını gözler önüne sermek istediği anlaşılmaktadır. Toplumun ahlak anlayışı ise sorgulanan diğer bir kavram olarak ortaya çıkar. İffet romanı özelinde romantizm ile realizmin irdelendiği görülür. Son Arzu özelinde ise eski devrin düşünce biçiminin, durağanlığının eleştirisi yapılır. Kadın hakları ve kadın erkek ilişkileri diğer eleştiri konularıdır. Tüm bu tartışmaların odak noktasını oluşturan asıl temaysa hayal ile hakikat arasındaki karşıtlıkla şekillenir. Her iki romanda da iyi örnek olarak gösterilebilecek çok az kişi varken, erdem sahibi iki kadın toplumun gözünde ahlaksız konumuna düşmüşlerdir. Hüseyin Rahmi Gürpınar’ın İffet ve Son Arzu romanları gerçekçilikle ilgili zayıf noktalarına rağmen evin içi ile sokak arasında kurduğu simgesel zıtlıklarla dikkat çeker. Buna göre evin içi, gerçek hayattan kopukluğu ile “hayal”in, sokak ise “hakikat”in temsilidir. Evdeki diyaloglarda, mektuplarda görülen dil ne kadar erdemli ise, sokağın dili o kadar gayriahlakidir. Ev, eski düzeni ifade ederken ne kadar yıpranmış ya da yüzeyselse, sokakta akan hayat o kadar gerçektir. Kahramanların evlerinde kurguladıkları aşk ne kadar yüce ise, dışarıda karşılaşılan duygu sadece cinsellik üzerinedir. Yazarın büyük başarısı, hayal ve hakikat temi çevresinde oluşturduğu bu zıtlığı ustalıkla eserlerine aktarmış olmasıdır.
Tuna’ya hasret gönüller: 1930-1939 arasında tuna nehri için yazılmış şiirler
Authors: ÇETİN YILDIRIM Saadet
Published: June 2021

Geçmişten günümüze Balkanlar, tarihi, coğrafyası ve insanıyla Türk edebiyatının önemli mevzularından olagelmiştir. Gerek klasik gerekse modern Türk edebiyatında, Rumeli zengin bir anlam ve imge dünyası ile yer almaktadır. Bu çerçevenin ciddi bir bölümünü de Tuna nehrini merkez alan şiirler oluşturur. Zira Balkanları baştanbaşa geçen Tuna, hem bu fiziki özelliği hem de tarihî önemi dolayısıyla, Rumeli denilince ilk akla gelenlerdendir. 1930’lu yıllar, Türkiye Cumhuriyeti’nin kurulmasından sonra, Balkanların yeniden gündeme taşındığı bir dönem olması bakımından önemlidir. Bu bakımdan makalede, Tuna merkezli kaleme alınmış şiirlerden 1930 ile 1939 arası yıllara ait olanlar ele alınmış. Bu dönemde Tuna merkezli şiirlerin Halide Nusret Zorlutuna, Uluğ Turanlıoğlu, Tunalı Nazif, Fazıl Hüsnü Dağlarca, Behçet Kemal Çağlar, İhsan Boran, Hasan Ali Yücel, Osman Attilâ ve Kemalettin Kamu tarafından kaleme alındığı görülür. Makalede, bu şiirler anlam ve imge dünyaları bakımından tahlil edilmiş, ortak imge kullanımlarına işaret edilmiştir. İki savaş arası dönem olması bakımından şiirlerin savaşa yönelik heyecanlı duygulardan ziyade, uzakta kalmış bir sevgiliye hitap tarzında yazıldığı görülmektedir. Şiirlerde öne çıkan duygu hasrettir. Bu hasret duygusu, kimi zaman tarihin anılmasıyla kimi zaman Tuna’yı hatırlatan başka nehirler üzerinden sağlanmıştır. Şiirlerin tahlilinde, Tuna’ya yönelik çeşitli imgesel kullanımlara dikkat çekilmiş olmakla birlikte, Tuna’nın kendisinin tüm Balkanları ve toplumsal hafızada o bölgeye dair olan her şeyi çağrıştıran bir imge değeri taşıdığı görülmüştür.
Bazı tespitler ışığında Neşâtî Dîvânı’ndaki “su” redifli gazel üzerine bir inceleme
Authors: KUZU Fettah
Published: June 2021

Çok sayıda usta şairin birbirinden farklı tarzlarda başarılı eserler telif ettiği 17. yüzyılın önde gelen şairlerinden biri de Edirneli Neşâtî’dir. Neşâtî Dîvânı’nda yer alan “su” redifli gazel ile ilgili birtakım belirsizliklerin olduğu ve bu belirsizliklerin gerek şiirin Fuzûlî’nin “Su Kasidesi”ne bir nazire olması gerekse Edirneli Neşâtî’ye aidiyeti hususlarında akıllarda soru işareti bıraktığı anlaşılmaktadır. Gazelin, nazım şekli ve türü itibariyle nazire olarak kaleme alınmış olma ihtimali zayıf görünmektedir. Ayrıca gazelin Edirneli şair Neşâtî’ye aidiyeti ise hem Dîvân nüshalarında ve biri dışında mecmualarda yer almayışıyla hem de Dîvân’daki tek 9 beyitlik gazel olması hasebiyle muhatabında tereddüt oluşturmaya müsait bir mahiyet arz etmektedir. Bu tereddüt, kaynaklarda Neşâtî mahlaslı başka şair ve/veya şairlerin olduğu yönündeki açıklamalarla daha da belirgin hale gelmektedir. Bütün bu tereddüt ve belirsizliklere ilaveten söz konusu gazelin kelime kadrosunun Dîvân’daki genel söz varlığı karşısındaki durumu incelendiğinde, şiirin Edirneli Neşâtî tarafından kaleme alınmamış olma ihtimali kuvvetlenmektedir. Bu çalışmada, Dîvân’daki gazellerden, Fuzûlî’nin “Su Kasîdesi”ne nazîre olarak yazıldığı düşünülen “su” redifli gazelin nazire geleneği içerisindeki durumu kısaca değerlendirilecek ve sonrasında söz konusu gazelin Edirneli Neşâtî’ye aidiyeti tartışılacaktır.
Detección temprana de propensión al fraude, en MIPYMES del sector servicios restauranteros 2017 en Mineral del Monte, Hidalgo.
Authors: Polo Jiménez Sergio Demetrio , Barrera Tapia Viviana , Vargas Vega Teresa de Jesús
Published: June 2021

El objetivo de este trabajo fue detectar de manera temprana actividades propensas al fraude, a través de la propuesta de un modelo basado en la metodología de la auditoría forense y el modelo C.O.S.O, analizando una muestra formada por 10 empresas restauranteras del municipio de Real del Monte, realizando un análisis estadístico descriptivo, proponiéndose y aplicándose con los resultados un modelo de regresión lineal. Los cuales permitieron identificar que a más personas solteras menor será la propensión al fraude en los recursos con los que cuenta las MiPyMES, que a menor sueldo mayor incremento en la propensión al fraude y que a más años en el mismo encargo mayor es el riesgo al fraude en la administración de los activos.
Barreras de comunicación
Authors: Hernández Mendoza Sandra Luz , Duana Danae
Published: June 2021

La verdadera comunicación no comienza hablando si no escuchando. La principal condición del buen comunicador es saber escuchar. La comunicación no está dada por el emisor que habla y receptor que escucha, si no por dos o más seres o comunidades humanas que intercambian y comparten experiencias. El principal problema en la comunicación se da cuando la información que se transmite resulta incomprensible para el receptor, esto impide crear un diálogo entre ellos, cabe recalcar que a veces es imposible transmitir todo con certeza absoluta, pues para expresar una idea el emisor debe codificar el mensaje de manera efectiva, asimismo el receptor va a decodificar esa información para formar su propia idea y lograr entender lo que se quiere dar a conocer, lo cual no siempre coincide.
Nutrición e hidratación en el deportista, su impacto en el rendimiento deportivo
Authors: Hernández Ponce Lisett , Carrasco García Mónica Suheily , Fernández Cortés Trinidad Lorena , González Unzaga Marco Aurelio , Ortiz Polo Araceli
Published: June 2021

Introducción: El principal papel de la alimentación diaria, es promover a los deportistas el combustible energético y los nutrientes necesarios. Durante la práctica deportiva, la disminución de rendimiento físico que se provoca a raíz de la deshidratación, es frecuente, puesto que muchos deportistas no ingieren suficientes fluidos para reponer las pérdidas producidas. Objetivo: Describir la nutrición e hidratación del deportista, mediante un análisis bibliográfico, para valorar su impacto en el rendimiento deportivo. Metodología: En buscadores especializados como Google Académico, Scielo, Redalyc, Pub Med, Elservier, Academia.edu y Dialnet, se realizó una revisión bibliográfica, entre los cuales, se analizaron artículos, libros y páginas web. Resultados: Entre los factores que determinan el rendimiento deportivo, la nutrición es uno de los más relevantes, por otro lado,  los estados de hidratación deficientes, no solo impactan en el rendimiento, sino que también pueden afectar la salud del deportista; los efectos pueden producir alteraciones en la homeostasis fisiológica; existen diferentes marcadores para evaluación del estado de hidratación en el deporte, es imprescindible conocerlos y poder utilizarlos de manera acertada ya que cada uno presenta ventajas e inconvenientes respecto al resto. Conclusión: Una estrategia nutricional de vital importancia es vigilar la óptima nutrición e hidratación en los deportistas, con el objetivo de garantizar un rendimiento eficaz en la ejecución de la actividad deportiva, así como también, asegurar que el organismo realice sus funciones correctamente, consiguiendo habilidades como fuerza, resistencia, movilidad y velocidad.
Validez Interna
Authors: Mayorga Ponce Rocio belem , Martinez Alamilla Abigail , Salazar Valdez Daniela , Plata Balderas Dania Zereth
Published: June 2021

La validez interna es el grado de confianza que se tiene de que los resultados del experimento se interpreten adecuadamente y sean válidos, este a su vez se relaciona con la calidad del experimento y se logran cuando hay control, cuando los grupos difieren entre sí solamente en la exposición a la variable independiente, cuando las mediciones de la variable dependiente son confiables y válidas y cuando el análisis es el adecuado para el tipo de datos que estamos manejando.
Descripción de las plantas medicinales de la familia Rubiacea con actividad
Authors: Valadez Vega María del Carmen , Mendoza Guzmán Lorenzo
Published: June 2021

La familia Rubiaceae es la cuarta familia más grande dentro el reino de las plantas, varias especies de esta familia se han utilizado dentro de la medicina tradicional por poseer propiedades antiinflamatorias, antivirales, antitumorales, inmunoestimulantes, entre otras, el objetivo de esta revisión de bibliográfica es identificar especies con un potencial farmacéutico.
Vislumbrar de forma Mística
Authors: Palma Ramírez Gilberto , Flores Bustillos Johali Priscila
Published: June 2021

Las experiencias místicas se presentan prácticamente en todas las culturas y en todas las épocas. Todo sujeto es propenso a la posibilidad de tener una experiencia mística. Es, pues, un fenómeno inherente a la condición humana, que no está necesariamente ligado a contextos religiosos. Es por ello que la experiencia mística puede despuntar tanto en parajes profanos como sagrados. Los hongos psilocibios nos ayudan a vislumbrar de forma mística, la psilocibina es el psicodélico clásico que más alto rankea en experiencias místicas completas o introvertidas. Los psicodélicos clásicos en este caso la psilocibina abre el acceso al mundo visionario, no tiene la capacidad para crear nuevas y diferentes imágenes del mundo, no son una alucinación, las visiones tiene un referente en el mundo y en la vida de la persona.
Resistencia de unión al cizallamiento de un adhesivo experimental conteniendo extracto de semilla de uva a esmalte humano post-blanqueado
Authors: Vola Gelmini Joanna Natalia , Rodríguez Juana , Migues Ignacio , Mederos Gómez Matías , Piva Evandro
Published: June 2021

Introducción: El blanqueamiento dental disminuye la resistencia de unión de las restauraciones adheridas debido a la presencia de radicales libres de oxígeno que interfieren con la penetración y polimerización de los sistemas resinosos. El uso de antioxidantes permite consumir estos radicales y posibilita la realización de restauraciones inmediatamente luego del blanqueamiento. Objetivos: Evaluar el efecto de la incorporación de ascorbato de sodio y extracto de semillas de uva al primer de un sistema adhesivo experimental autoacondicionante de dos pasos, en la resistencia de unión inmediata a esmalte humano blanqueado. Materiales y métodos: Se utilizaron 42 terceros molares de los que se obtuvieron 84 especímenes que se dividieron aleatoriamente en 2 grupos: la mitad de los especímenes no fue blanqueado, mientras que la otra mitad fue sometida a un procedimiento de blanqueamiento con peróxido de carbamida al 45% durante 30 minutos. Posteriormente, los especímenes fueron subdivididos en 3 grupos dependiendo del sistema adhesivo con el que fueron restaurados: adhesivo sin antioxidante, con ascorbato de sodio al 15%, y con extracto de semillas de uva al 10%. Se confeccionaron cilindros de resina compuesta que fueron sometidos a un ensayo de resistencia de unión al microcizallamiento. Análisis estadístico: Se utilizó el programa SigmaPlot 12.0. Se realizó una prueba de ANOVA de dos vías para evaluar el efecto de las variables independientes en la RUM. Se utilizó un nivel de significancia de α = 0.05. Resultados: Los grupos con mayores valores de resistencia de unión al microcizallamiento fueron: no blanqueado sin antioxidante, no blanqueado con extracto de semillas de uva y blanqueado sin antioxidante, sin diferencia estadísticamente significativa entre ellos. Los grupos en los que se utilizó el adhesivo con ascorbato, tanto el que recibió blanqueamiento como el que no fue blanqueado, mostraron los valores más bajos de resistencia de unión al microcizallamiento. Ninguno de los antioxidantes mejoró la resistencia de unión al microcizallamiento (p < 0.05). Conclusión: La incorporación de extracto de semillas de uva al adhesivo no afecta negativamente la resistencia de unión al microcizallamiento. Sin embargo, no es capaz de mejorar la adhesión luego del blanqueamiento.