bluuebunny/crossref_metadata_2025_split huggingface dataset:
analysis of mechanical properties of ceiling boards based on corn cobs and coconut coir waste with latex adhesive
Authors: Jumiati Ety , Tumanggor Ufik Eliati , Daulay Abdul Halim 
Published: December 2021

<p align="center"><strong><em>Abstract</em></strong></p><p>Ceiling evelopment by utilizing waste corn cobs, coconut coir with gypsum flour an the adition of latex adhesive. Variations in the composition of the mixture of corn cobs, coconut coir, gypsum flour with latex adhesive include sample A (0:0:100:15), sample B (3:3:94:15), sample C (6:6:88:15), sample D (9:9:82:15), sample E (12:12:76:15), and sample F (15:15:70:15) with emphasis using a <em>hot press </em>and drying for 28 days. The test parameters include flexural strength and fracture strength. The test results show that sample B in the composition (3:3:94:15) is the optimal result. In this composition, the resulting ceiling board has the characteristics of a flexural strength of 3966,39 kgf/cm<sup>2</sup> and a fracture strength of 1088,6 kgf/cm<sup>2</sup>.</p><p><strong><em>Keyword :</em></strong><em> Lateks , Ceiling Board, Coconut Coir, Corn Cob</em></p><p><em> </em></p>
COMPLICACIONES EN PACIENTES DIABÉTICOS CON COVID-19
Authors: Barrionuevo  Mejía Jenny Alicia , López Pérez Grace 
Published: December 2021

Introducción: Durante la pandemia por Covid 19 la población diabética ha sido considerada como vulnerable y de alto riesgo al ser más propensos a adquirir infecciones respiratorias por deterioro del sistema inmunológico y alteración de los niveles de glucosa. Objetivo: Describir las complicaciones en pacientes diabéticos con COVID-19. Metodología: meta-análisis de artículos publicados hasta el 14 de septiembre de 2020 en bases de datos como: Medline, PubMed, Lilacs, Scielo, Redalyc, Elsiever, BVS y Google académico. La búsqueda se realizó en 3 fases; la primera implicó la búsqueda en base a los descriptores, la segunda donde se aplicaron criterios de selección y la tercera que fue de lectura evaluativa. Resultados: Las principales complicaciones de los pacientes diabéticos con COVID-19 son: síndromes de distrés respiratorio severos y síndrome de hiperinflamación sistémica extrapulmonar, shock, vasoplejia, insuficiencia respiratoria, colapso cardiopulmonar, neumonía grave, miocarditis, lesión renal aguda, daño pancreático, esto debido a mecanismos inmunológicos e hipoglucémicos que conllevan a un mayor riesgo de muerte. Conclusión: Los pacientes con diabetes sí presentan mayores complicaciones en cuadros de Covid 19, ya que cuando existe un inadecuado control glicémico se origina una mayor susceptibilidad a desarrollar un cuadro séptico severo por falla en la respuesta del cuerpo a los patógenos
Embarazadas con hisopado positivo para SARS-CoV-2: presentación clínica y evolución de la dupla madre-recién nacido de una población hospitalaria
Authors: Pereira Ferreira Sara , Carrera Dina , Mesquita Mirta 
Published: December 2021

Introducción. Durante la pandemia, todas las mujeres embarazadas fueron sometidas a hisopado nasofaríngeo para SARS-CoV-2. Objetivo. Describir las características clínicas y evolución de las embarazadas con estudio de PCR positivo para SARS-CoV-2 y sus recién nacidos en una población hospitalaria. Materiales y Métodos. Estudio observacional ambispectivo de seguimiento de una cohorte, en la maternidad del Instituto de Previsión Social entre marzo 01 de 2020 a mayo 31 de 2021. Participaron embarazadas del tercer trimestre ingresadas para parto, con resultado positivo para SARS-CoV-2. Variables: edad, síntomas, complicaciones del embarazo, clasificación de COVID-19, ingreso a terapia intensiva, antropometría neonatal, seguimiento de la dupla madre-neonato hasta los 7 días post parto. Datos analizados en SPSS utilizando estadísticas descriptivas. Protocolo aprobado por el comité de ética de la investigación. Resultados. Ingresaron 136 embarazadas y 139 neonatos (3 gemelares). El 78,6% sintomáticas, 8,1% presentó formas graves. El 10,3% presentó preeclampsia, el 10,3% ingresó a terapia intensiva y el 2,2% falleció. El 86,4% nació por cesárea, hubo 2 mortinatos. El 29,2% fue pretérmino, el 18,2% de bajo peso de nacimiento, 24,8% fue hospitalizado Fallecieron 3/137 antes de los 7 días. El hisopado neonatal fue positivo en 3. El 78 % se alimentó con pecho materno. Conclusión. El 15,5% de embarazadas positivas ingresaron con formas moderada a grave, de COVID 19, el 10,3% ingresó a UTI y 3 fallecieron. El porcentaje de cesárea, prematuridad y hospitalización neonatal fue muy elevado. Hubo 2 mortinatos y el 2,9% de los nacidos vivos fallecieron. El hisopado neonatal fue positivo en el 2,2%.
Conflicto de interés: los autores declaran no poseer conflicto de interés
Fuente de financiamiento: El estudio no conto con financiación externa
Recibido: 3/11/2021 Aceptado: 19/11/2021
Redox Climate in Quiescence and Pathogenicity of Postharvest Fungal Pathogens
Authors: Bostock Richard M. , Prusky Dov , Dickman Martin 
Published: December 2021

Monilinia fructicola causes brown rot blossom blight and fruit rot in stone fruits. Immature fruit are highly resistant to brown rot but can become infected. These infections typically remain superficial and quiescent until they become active upon maturation of the fruit. High levels of chlorogenic acid (CGA) and related compounds occur in the peel of immature fruit but these levels decline during ripening. CGA inhibits cutinase expression, a putative virulence factor, with little or no effect on spore germination or hyphal growth. To better understand the regulation of cutinase expression by fruit phenolics, we examined the effect of CGA, caffeic acid (CA) and related compounds on the redox potential of the growth medium and intracellular glutathione (GSH) levels. The presence of CA in the medium initially lowered the electrochemical redox potential of the medium, increased GSH levels and inhibited cutinase expression. Conidia germinated in the presence of CA, CGA, or GSH produced fewer appressoria and had elongated germ tubes compared to the controls. These results suggest that host redox compounds can regulate fungal infectivity. In order to genetically manipulate this fungus, a transformation system using Agrobacterium was developed. The binary transformation vector, pPTGFPH, was constructed from the plasmid pCT74, carrying green fluorescent protein (GFP) driven by the ToxA promoter of Pyrenophora tritici-repentis and hygromycin B phosphotransferase (hph) under control of the trpC promoter of from Aspergillus nidulans, and the binary vector pCB403.2, carrying neomycin phosphotransferase (nptII) between the T-DNA borders. Macroconidia of M. fructicola were coincubated with A. tumefaciens strain LBA 4404(pPTGFPH) on media containing acetosyringone for two days. Hygromycin- and G418-resistant M. fructicola transformants were selected while inhibiting A. tumefaciens with cefotaxime. Transformants expressing GFP fluoresced brightly, and were formed with high efficiency and frequency of T-DNA integration frequency. The use of these transformants for in situ studies on stone fruit tissues is discussed.
Стан проблеми щодо зонування території навколо АЕС
Authors: Griban K. , Bogorad V. , Nosovsky A. , Slepchenko O. 
Published: December 2021

Наведено принципи встановлення санітарно-захисної зони, зони спостереження та зон аварійного планування в різних країнах. На підставі розглянутих вимог і принципів визначення меж санітарно-захисної зони та зони спостереження АЕС показано необхідність підтвердження існуючих або визначення нових розмірів санітарно-захисної зони і зони спостереження відповідно до вимог нормативних документів України. Розглянуто стан проблеми щодо встановлення зон аварійного планування навколо АЕС згідно з рекомендаціями МАГАТЕ.
Сучасний підхід до організації електроживлення систем, важливих для безпеки АЕС у разі знеструмлення власних потреб
Authors: Iokst V. , Yefimova K. , Levakin V. , Iokst O. , Romaniuk M. , Martyniuk B. 
Published: December 2021

Розглянуто передумови до перегляду стратегії електропостачання власних потреб АЕС в Україні та нові підходи до організації електропостачання споживачів систем безпеки від внутрішніх резервних джерел електроживлення і мобільних дизель-генераторних електростанцій.
Повітряний інфрачервоний моніторинг об’єктів ядерного паливного циклу в Україні
Authors: Stankevich S. , Dudar Т. , Kovalenko G. , Kartashov V. 
Published: December 2021

Розглядається можливість застосування повітряного інфрачервоного моніторингу об’єктів ядерного паливного циклу, зокрема в Україні, на прикладі сухого сховища відпрацьованого ядерного палива Запорізької атомної електростанції. Впровадження інфрачервоного аерознімання забезпечує додаткову інформацію про стан об’єктів моніторингу, засновану на принципово інших фізичних принципах, ніж в існуючих системах. Представлено моделі застосування та технічні вимоги до сучасних зразків інфрачервоної знімальної апаратури та її малогабаритних безпілотних носіїв.
Аналіз характеристик електроохолодчувачів для ОЧГ-детекторів гамма-випромінювання
Authors: Sokolov A. , Pchelintsev A. , Gostilo V. 
Published: December 2021

Поява на ринку малогабаритних і, водночас, досить потужних електроохолоджувачів різного типу відкриває перспективу розробки широкого спектра ядерно-фізичної апаратури на основі ОЧГ-детекторів із застосуванням таких електроохолоджувачів. У статті наведено огляд електроохолоджувачів, придатних для охолодження ОЧГ-детекторів, аналіз їх переваг і недоліків для вирішення конкретних завдань зі створення гамма-спектрометричної апаратури для різних застосувань. Представлено приклади реалізації спектрометричної апаратури на основі ОЧГ-детекторів з електроохолоджуванням та її характеристики.
Investigation of the Influence of Gamma Radiation on Structural Transformations in Portlandcement Stone
Authors: Anopko D. , Honchar O. , Kochevykh M. , Kushnierova L. 
Published: December 2021

The radiation resistance of concrete under the influence of large doses of gamma radiation was investigated. To study the behavior of concrete under the influence of gamma radiation, two series of samples were taken: оne was the reference sample, and the other was exposed to gamma radiation. The temperature of the irradiated samples during testing did not exceed 40 °C, the reference temperature was also accepted to be 40 °C. The dose of gamma radiation was 109 rad. Its value corresponds to the dose that concrete can receive when it comes into contact with high-level radioactive waste from the Shelter over 300 years. Characteristics of an industrial gamma radiation equipment are: radiation energy is 1.25 MeV and dose rate is 2 Mrad/h. The use of such equipment allows reaching a dose of 109 rad in less than a month, and 108 rad - in 4-5 days. Concretes that were 28 days old and stored under normal conditions were exposed to gamma radiation.
El Fenómeno El Niño, las Inundaciones de 1877 y la Incorporación del Salitre a la Soberanía de Chile
Authors: Camus Pablo , Jaksic Fabián 
Published: December 2021

Este artículo aborda las interrelaciones entre clima y sociedad durante la década de 1870 en Chile a partir del análisis de fuentes históricas como el Boletín de la Sociedad Nacional de Agricultura, El Mercurio de Valparaíso, los Mensajes Presidenciales y el libro El Clima de Chile publicado en 1877 por Benjamín Vicuña Mackenna. Tras exponer el crítico contexto socioeconómico del período se constata que la agricultura nacional, representada en la producción y exportación de trigo, estaba expuesta no sólo a fluctuaciones meteorológicas sino también a plagas, epizootias y a prácticas agrícolas que llevaron a desequilibrios socio-ecológicos que en la época fueron atribuidos al clima. Aquí se propone que fueron los temporales y las grandes inundaciones de 1877 provocadas por el fenómeno El Niño las que aceleraron y agudizaron la profunda crisis política, social y económica en que se hallaba el país. Ella fue superada por la elite chilena a partir de la Guerra del Pacífico y de la incorporación de los territorios salitreros, la gran riqueza mundial de la época.
Los Suelos están Cansados: La Historia Agroecológica de los Cantones Costarricenses de Mora y Puriscal en las Primeras Cinco Décadas del Siglo XX
Authors: Amaris Cervantes Orlando Enrique 
Published: December 2021

E
El presente artículo propone esclarecer los procesos de cambio ocurridos en las coberturas agrícolas resultantes de actividades agropecuarias vinculadas directa e indirectamente con la exportación cafetalera en la primera mitad del siglo XX. Mediante la consulta de censos agropecuarios y anuarios estadísticos, así como fuentes secundarias, además con la realización de entrevistas semiestructuradas a mayores de los cantones de Mora y Puriscal, fue posible reconstruir transiciones agroecológicas de ambos cantones caracterizados por la producción de alimentos. La demostración de la pérdida de reposición de la fertilidad de la tierra por medio de la biomasa proveniente del barbecho en las zonas de descanso, así como la expansión de los pastos para la alimentación del ganado sirven para exponer las presiones que vivieron las poblaciones de estos cantones productores de granos básicos en el marco una simplificación ecológica que contrasta para este mismo período, como también describimos en este estudio, con el sistema agroforestal cafetalero dominante en otros cantones.
Usage of telecommunication technology in perpetration of sexual assault- A study conducted on reported victims in a Tertiary Medical College Hospital OCC
Authors: Farooqui Iffath , Islam Md Shamsul , Chowdhury Rahat Amin , Hasan ATM Hasibul 
Published: December 2021

The sexual assaults and its consequences are increasing along with socioeconomic development of the country. Rise of modern communication technology add fuel to the flame. This descriptive cross-sectional study aimed to evaluate the role of communication technology in sexual assaults in Bangladesh. There were 87 victims included in this study. All were female of 6 years to 40 years of age, mean age was 15.67 (± 6.69) year. Most of the victims were below 20 years of age and came from low income families. About 76% mobile used were smart phone. Among them 46% were owned by the victims herself, 26% gifted by the assailants to the victims. Talking through mobile (37%) was the main communication route between the assailants and the victims; followed by direct verbal (31%), mixed verbal and mobile talking (26%) and others (6%). Regarding methods of communication, they only talk in 42% cases and 36% cases used mixed method (talking, SMS and video chatting). The assailant paid all the costs in 62% cases. Mobile phone came as a blessing in communication, but inchoate use makes it a curse to our society. Parents should be cautious about their children's mobile usage (especially smart phone) daily. Government also should make some policy on using mobile technology by the younger citizens.
CBMJ 2020 July: Vol. 09 No. 02 P: 03-07
Conversion of laparoscopic cholecystectomy to open cholecystectomy in a single center
Authors: Biswas Suttam Kumar , Roy Shilpi Rani , Sarker Subbrata , Rahman Md Mustafizur , Islam Kamrul 
Published: December 2021

Laparoscopic cholecystectomy (LC) has become the gold standard for the surgical treatment of gallbladder disease, but conversions to open cholecystectomy are still inevitable in certain cases. Knowledge about the rate and underlying reasons for conversion could help surgeons during preoperative assessment and improve the informed consent of patients. We decide to review the rate and causes of conversion of our LC series. This study included 320 consecutive laparoscopic cholecystectomies from January 2017 to December 2019 at Community Based Medical College Hospital Bangladesh, Mymensingh. All patients had surgery performed by same surgeon. Conversion to open cholecystectomy required in 15 (4.6%) patients. Out of 15 cases, the highest number of patients 10(66.6%) were in age group 50 to 59 years with a mean age of 60.1 years and standard deviation (SD) of 9.8 years. Of them 9 (60%) were male. The most common reasons for conversion of them were severe adhesions at calot's triangle 6 (40%) and acutely inflamed gallbladder 5 (33.3%), bleeding 2 (13%). No surgical procedures are complication free. The most common complication was superficial wound infection 8(2.5%). Delayed complications seen in our series is port site incisional hernia 2 (0.62%). Male gender, age older than 60 years, previous upper abdominal surgery, diabetes, and severity of inflammation were all significantly correlated with an increased conversion rate to laparotomy. LC is the preferred method even in difficult cases. This study emphasizes that although the rate of conversion to open surgery and complication rate are low in experienced hands, the surgeons should keep a low threshold for conversion to open surgery.
CBMJ 2020 July: Vol. 09 No. 02 P: 14-18
Approach to the Diagnosis of Bleeding Disorders in Children
Authors: Tawfique Muhammad 
Published: December 2021

Hemostasis is the cessation of bleeding in the intravascular compartment. This occurs by the formation of clot formation at the site of injury. The intricately related system also regulates the size of the clots by the activation of fibrinolysis. The disorders that lead to the bleeding outside the intravascular space is bleeding disorder. Bleeding occurs as a result of defective quality or quantitative deficiencies of platelets, coagulation problems in the extrinsic or intrinsic or the common pathways and abnormalities in the vascular walls to contain hemorrhage. Although the values of different coagulation and fibrinlytic factors are pretty much like that of the adults yet, neonates have considerable differences in these values than their senior counterparts even in pediatric age groups. Considering all these facts the history, physical examination and laboratory investigations always provide the clinicians some important clues to reach the diagnosis. Because of the complicated relationship among the different pathways of coagulations and fibrinolytic systems the whole procedure might look complex yet methodical approach paves the way of an intelligent clinician to arrive at the diagnosis with precision and clinical perfection.
CBMJ 2020 July: Vol. 09 No. 02 P: 45-53
The Bent-Tube Nozzle Optimization of Force-Spinning With the Gray Wolf Algorithm
Authors: Liu Kang , Li Wenhui , Ye Peiyan , Zhang Zhiming , Ji Qiaoling , Wu Zijun 
Published: December 2021

Force-spinning is a popular way to fabricate various fine fibers such as polymer and metal nanofibers, which are being widely employed in medical and industrial manufacture. The spinneret is the key of the device for spinning fibers, and the physical performance and morphology of the spun nanofibers are largely determined by its structure parameters. In this article, the effect of spinneret parameters on the outlet velocity is explored and the spinneret parameters are also optimized to obtain the maximum outlet velocity. The mathematical model of the solution flow in four areas is established at first, and the relationship between outlet velocity and structure parameters is acquired. This model can directly reflect the flow velocity of the solution in each area. Then, the optimal parameters of outlet diameter, bending angle, and curvature radius are obtained combined with the gray wolf algorithm (GWA). It is found that a curved-tube nozzle with a bending angle of 9.1°, nozzle diameter of 0.6 mm, and curvature radius of 10 mm can obtain the maximum outlet velocity and better velocity distribution. Subsequently, the simulation is utilized to analyze and compare the velocity situation of different parameters. Finally, the fiber of 5 wt% PEO solution is manufactured by a straight-tube nozzle and optimized bent-tube nozzle in the laboratory, and the morphology and diameter distribution were observed using a scanning electron microscope (SEM). The results showed that the outlet velocity was dramatically improved after the bent-tube parameters were optimized by GWA, and nanofibers of better surface quality could be obtained using optimized bent-tube nozzles.
miR-153-3p Targets βII Spectrin to Regulate Formaldehyde-Induced Cardiomyocyte Apoptosis
Authors: Yang Panyu , Yang Yanyan , He Xiangqin , Sun Pin , Zhang Ying , Song Xiaoxia , Tian Yu , Zong Tingyu , Ma Jianmin , Chen Xiaofei , Lv Qifeng , Yu Tao , Jiang Zhirong 
Published: December 2021

Background: Formaldehyde (FA) is ubiquitous in the environment and can be transferred to the fetus through placental circulation, causing miscarriage and congenital heart disease (CHD). Studies have shown that βII spectrin is necessary for cardiomyocyte survival and differentiation, and its loss leads to heart development defects and cardiomyocyte apoptosis. Additionally, previous studies have demonstrated that miRNA is essential in heart development and remodeling. However, whether miRNA regulates FA-induced CHD and cardiomyocyte apoptosis remains unclear.Methods: Using commercially available rat embryonic cardiomyocytes and a rat model of fetal cardiomyocyte apoptosis. Real-time quantitative PCR (RT-qPCR) and Western blot were performed to examine the level of miR-153-3p, βII spectrin, caspase 7, cleaved caspase7, Bax, Bcl-2 expression in embryonic cardiomyocytes and a rat model of fetal cardiomyocyte apoptosis. Apoptotic cell populations were evaluated by flow cytometry and Tunel. Luciferase activity assay and RNA pull-down assay were used to detect the interaction between miR-153-3p and βII spectrin. Masson's trichrome staining detects the degree of tissue fibrosis. Fluorescence in situ hybridization (FISH) and Immunohistochemistry were used to detect the expression of miR-153-3p and βII spectrin in tissues.Results: Using commercially available rat embryonic cardiomyocytes and a rat model of fetal cardiomyocyte apoptosis, our studies indicate that miR-153-3p plays a regulatory role by directly targeting βII spectrin to promote cardiomyocyte apoptosis. miR-153-3p mainly regulates cardiomyocyte apoptosis by regulating the expression of caspase7, further elucidating the importance of apoptosis in heart development. Finally, the results with our animal model revealed that targeting the miR-153-3p/βII spectrin pathway effectively regulated FA-induced damage during heart development. Recovery experiments with miR-153-3p antagomir resulted in the reversal of FA-induced cardiomyocyte apoptosis and fetal cardiac fibrosis.Conclusion: This study investigated the molecular mechanism underpinning the role of βII spectrin in FA-induced CHD and the associated upstream miRNA pathway. The study findings suggest that miR-153-3p may provide a potential target for the clinical diagnosis and treatment of CHD.