bluuebunny/crossref_metadata_2025 huggingface dataset:
In Vitro Anti-cancer, Anti-hypertensive and Antihyperglycaemic effect of Hypoxis colchicifolia
Authors: Moodley Suggessan , Dwarka Depika , Baijnath Himansu , Jason Mellem John
Published: July 2021

Economic challenges associated with non-communicable diseases and the sociocultural outlook of many patients especially in Africa has increased the dependence on traditional herbal medicines for these diseases. Hypoxis colchicifolia is a traditional medicinal plant used in Southern Africa against an array of ailments. This study evaluated the in vitro antidiabetic (α-amyalse and α-glucosidase), antihypertensive (angiotensin-converting enzyme) and anticancer potential of H. colchicifolia corm as well as leaf (acetone, methanol and aqueous) extracts. Results showed that extracts have a moderate anti-diabetic and anti-hypertensive potential, with great anti-cancer potential. The acetone extract of both fresh and dried corms produced significant α-amylase and α-glucosidase inhibition with ACE inhibited predominantly by the dried corms methanolic extract (IC50 368.2 μg/mL). Methanolic extract of dried leaves showed the least cytotoxicity against the noncancerous cell line HEK-293 while exhibiting the highest inhibition of MCF-7 cells (IC50 3.24 μg/mL). All extracts exhibited a greater inhibitory potential in A549 cells than the positive control camptothecin (IC50 304.2μg/mL). This study reveals that H. colchicifolia has therapeutic potential as an anti-diabetic and anticancer agent; however, further in vivo studies need to be conducted.
Assessment of Anti-Cancerous Effect of Green, Roasted and Decaffeinated Coffee on Oral Squamous Cell Carcinoma Cell Line (In Vitro Study)
Authors: Rashad Asmaa E. E. M. , Abdel Latif Mohsen K. , Abdul-Aziz Manar A.
Published: July 2021

Oral Squamous Cell Carcinoma (OSCC) is one of the most prevailing malignancies of the head and neck area. So far, treatment methods are associated with harmful effects which drive attention towards natural compounds such as coffee. The current study attempted to test the anti-cancerous effect of green coffee, medium roasted coffee and decaffeinated coffee in OSCC cell lines and correlate the obtained results with their total phenolic content. We prepared coffee extracts using soxhlet apparatus. Then, we purchased and sub-cultured OSCC-25 cell into four study groups. We subjected three of those groups to coffee extracts separately. We left the remaining group without any treatment as a control group. We assessed cell cytotoxic effect of each extract by MTT viability assay. Additionally, we evaluated the apoptotic effect of each extract on OSCC-25 cell lines using flowcytometric analysis. Finally, we measured the total phenolic content in each coffee extract. The results revealed that coffee extracts induced varying degrees of cell cytotoxicity and apoptosis. Green coffee showed the highest cytotoxic and apoptotic effect followed by medium roasted coffee, then decaffeinated coffee. The total percentage of necrotic cells were higher in the coffee extracts groups, compared to the control group with a higher value in favor of green coffee followed by medium roasted coffee. Upon chemical analysis, the results showed that green coffee extract contained the highest concentration of phenolic compounds followed by medium roasted coffee then decaffeinated coffee extracts. We concluded that green coffee was the most potent anti-cancer extract. It seems plausible that coffee, and particularly green coffee could be for treating of OSCC.
PRECARITY, AGENCY, AND UNSUSTAINABILITY: THE MOBILITY OF YOUNG ADULT TOURISM WORKERS IN BANFF NATIONAL PARK, CANADA
Authors: Smith Angèle
Published: July 2021

This article focuses on young adults who travel to work and live in the Rocky Mountain resort destination of Banff National Park in western Canada. This is usually an early work experience in the lives of these young workers, often their first. I discuss the patterns and the impact of the work mobility of young adult tourism workers using three different frames of understanding: (a) the precarious employment associated with the tourism industry itself; (b) the specific place and community of Banff and how it shapes particular conditions of precarity and agency within the tourism industry and for young tourism workers’ experiences; and (c) the young adult tourism workers themselves — their motives for work and travel, their experiences of work, and their agency in navigating the tourism industry in Banff. Using these three frames, I examine the impact of precarity and agency on the transfer of work knowledge, on the sustainability of the tourism industry work and the community, and on the young adult tourism workers’ future work experiences. It is critical to examine work precarity, worker agency, and job and community sustainability in order to understand more fully the experiences of mobility of young adult tourism workers, and their early work experiences. This is all the more important as, in a climate of economic change and restructuring, young adult workers are becoming central to the consideration of employment policy issues.
Unboxing Childhood: Risk and Responsibility in the Age of YouTube
Authors: Garlen Julie C. , Hembruff Sarah L.
Published: July 2021

In this article, we look to viewer responses to James Bridle’s TED Talk on children’s YouTube to learn about the discursive landscape of childhood in the digital age. We first situate concerns about children’s use of YouTube within a history of moral panic and then conduct a thematic analysis of online comments to discover what viewers identify as the central concerns. We “unbox” three emergent themes of responsibility—corporate, parental, and societal—to understand how these themes might help us think about contemporary discourses of childhood “at risk,” critical media literacy, and children’s agency as social actors on the Internet.
FOLKLORE OF THE PEOPLES OF DAGESTAN
Authors: Gasharova Aida Ruslanovna
Published: July 2021

Purpose: The article focuses on the genetic relationship of Dagestan people majority, which was reflected in the archaic layer of culture, on the processes of interethnic historical and cultural interrelations, which are generally characterized with a sufficient intensity in Dagestan.

Methodology: The article is a generalizing analysis of multinational Dagestan oral-poetic creativity, the statement of the positions and conclusions on the genesis and the centuries-old functioning of a unique folkloric unity in diversity.

Main Findings: Dagestan folklore material, in particular such genres as myths, legends, legends, heroic epic, heroic historical and historical songs and ballads, ritual poetry genres, unconscious lyrics, the fairy epics of its variety, parables, oral stories and anecdotes, proverbs, sayings and riddles are characterized by their commonality and mutual influences, conditioned by the historical and cultural interrelationships of Dagestan peoples.

Implications: Dagestan folklore material allows us to draw important conclusions concerning not only the peculiarities of the functioning of folklore in a particular region, but also the general theory of folklore.

Novelty: The very syncretic nature of folklore dictates the need for a complex attraction to the object of analysis of the verbal, musical, ethno-graphic and other components of this field of art, which makes it possible to more deeply and broader comprehend the above unity in diversity.
Аналіз методів визначення швидкості об’єктів систем гіркової автоматизації
Authors: Мойсеєнко В.І. , Сафін В.Т. , Жебко В.О. , Некрасов О.Л.
Published: July 2021

Стаття присвячена дослідженню проблем модернізації систем автоматизації сортувальних гірок, зокрема в частині вимірювання швидкості скочування відчепів. Аналіз наукових публікацій з цієї проблеми на залізничному транспорті та в інших галузях техніки вказує на перспективність використання лідара як датчика первинної інформації про параметри руху вагона. Запропоновано технічне рішення системи гіркової  автоматизації з використанням лідара як багатоінформаційного перетворювача
Short-Term Effects of Cell Phone Radiation on Fertility and Testosterone Hormone in Male Rats
Authors: FATAHİ ASL Jafar , SHİRBANDİ Kiarash , REZAİE Anahita , RASTEGARPOUR Shahrzad , PAHLAVANİ Shamim , AHANGARPOUR Akram , DASTOORPUR Maryam , MANSOURİ Esrafil
Published: July 2021

Aim: Given the increasing usage of cell phones (6.9 billion subscriptions globally) and heterogeneous reports, this study aimed to determine the cell phone effect as non-ionizing radiation on the level of testosterone hormone and sperm parameters in male rats.
Material and Methods: Twenty-five matured male Wistar rats were randomly allocated to five groups with the same body weights. Radiofrequency radiation for the exposed groups was 1 h/day call, 2 h/day call, and 50 missed calls/day in 30 days. The other two groups were control (out of any radiation) and positive control (exposed to γ-radiation) groups. Sperm parameters (motility, morphology, viability, counting), histopathology, and serum level of testosterone were measured and analyzed.
Results: According to the results, the sperm viability significantly decreased compared to the control group (p<0.001). Also, the findings revealed that the sperm motility in all groups except missed call group (p=0.475). For sperm count and morphology only in Group C (2 h/day call) and Group D (positive control), there were significant reductions compared to the control group (p<0.001). The level of testosterone was not statistically significantly different between the groups (p=0.451).
Conclusion: This study suggests that cell phone hazard to infertility was mild to moderate, and cell phone usage might have long-term effects on infertility. However, the cell phone cannot significantly affect the serum testosterone level.
Impact of Livestock Enteric Emission on Climate and its Mitigation
Authors:   Division of Veterinary Biochemistry, Faculty of Veterinary Sciences & Animal Husbandry, (SKUAST-K), Alustang, Shuhama, Srinagar, J&K, India 190006, Rashid Shahzada Mudasir
Published: July 2021

The increase in production of greenhouse gases is a major cause of global warming for which livestock holds a big share in total greenhouse gas emission annually. The greenhouse gases produced by livestock include carbon dioxide, methane, nitrous oxide etc. Cattle and buffalo are the major contributors responsible for 90% emission of GHG followed by sheep and goat. Increase in carbon dioxide emission by livestock, decaying of dung in absence of oxygen, enteric fermentations are the major sources of greenhouse gas production by livestock species. Owing to greenhouse effect, the elevated greenhouse gases cause global warming resulting in the increase of surface temperature of earth, decreased precipitation, and huge damage to environment and affect the flora and fauna turning the conditions on earth unfavorable for survival of living forms. The major impacts are loss of biodiversity, loss of habitat for animals and plants, uncertainty in climate, increase in livestock diseases, damage to feed sources (plants), decrease in productivity of livestock species and many more. Mitigation measures needed to be focused on decreasing the global meat consumption, implementing carbon tax, feeding dietary oils/nitrates, manure management and its biodigestion, genetic manipulations besides strengthening of global livestock environmental assessment models.
ORIGANUM VULGARE И МОЛОЧНАЯ СЫВОРОТКА КАК КОМПОНЕНТЫ НОВОГО ФУНКЦИОНАЛЬНОГО НАПИТКА
Authors:   Оренбургский государственный университет, Алешина Е.С. , Дроздов Е.А. ,   Оренбургский государственный университет
Published: July 2021

В настоящее время пятая часть взрослого населения России, включая жителей Оренбургской области, страдает не только полидефицитным состоянием в отношении витаминов, микро- и макроэлементов, но и пониженным иммунным статусом вследствие перенесенных инфекционных заболеваний, в том числе и вирусной природы. Были оценены основные показатели молочной сыворотки пастеризованной (титруемая и активная кислотность, общая обсемененность и количество бактерий рода Lactobacillus), антибактериальные характеристики растительного сырья на примере Origanum vulgare. Показано, что добавление в молочную сыворотку эстрактов растительного сырья O. vulgare приводит не только к обогащению и без того полезной молочной сыворотки витаминами, микро- и макроэлементами, но и увеличение срока годности продукта.
OYUN TEMELLİ SOSYAL BECERİ GELİŞTİRME PROGRAMININ SOSYAL BECERİ VE DUYGU DÜZENLEME DÜZEYİNE ETKİSİ
Authors: AKSAKAL Beliz , GÜLOĞLU Berna
Published: July 2021

Bu çalışmanın amacı, oyun temelli sosyal beceri geliştirme programının koruyucu bakım altındaki 6 yaş çocuklarının sosyal beceri ve duygu düzenleme düzeyine etkisini incelemektir. Çalışma, Aile, Çalışma ve Sosyal Hizmetler Bakanlığı’na bağlı olan ve İstanbul’da bulunan bir çocuk evleri sitesinde kalan 6 deney ve 6 kontrol grubu olmak üzere toplam 12 çocuk ile gerçekleştirilmiştir. Araştırma, gerçek deneysel modellerden ön test-son test kontrol gruplu modeldir. Araştırmada veri toplama aracı olarak Demografik Bilgi Formu, Sosyal Becerileri Değerlendirme Ölçeği ve Duygu Ayarlama Ölçeği kullanılmıştır. Deney ve kontrol grubundaki çocukların sosyal beceri ve duygu düzenleme düzeylerindeki gruplararası farka, Mann Whitney U Testi ile grupiçi farka ise Wilcoxon İşaretli Sıralar testi ile sınanmıştır. Araştırma bulguları, 10 haftalık oyun temelli sosyal beceri geliştirme programının koruyucu bakım altındaki çocukların sosyal beceri ve duygu düzenleme düzeyleri üzerinde etkisinin olmadığını göstermiştir. Bulgular alanyazın temelinde tartışıldıktan sonra gelecekteki araştırmalara ve uygulamacılara yönelik önerilerde bulunulmuştur.
Tertulias Literarias Dialógicas: transformaciones sociales y personales.
Authors: López de Aguileta Garazi , Flecha García Ramón
Published: July 2021

Desde su creación en 1978 en la Escuela de Adultos La Verneda-Sant Martí, situada en uno de los barrios más desfavorecidos y marginados de Barcelona en la época, las Tertulias Literarias Dialógicas (TLD) han generado transformaciones sociales en contextos diversos, en diferentes países, con personas de diferente nivel socioeconómico y educativo y de distintas edades. Desde entonces han desafiado teorías racistas y clasistas de corrientes de pensamiento estructuralistas y posestructuralistas que niegan a personas de bajo nivel socioeconómico la posibilidad de leer y disfrutar de las mejores obras literarias de la humanidad. Sin embargo, las TLD defienden y promueven la libertad literaria de todas las personas, logrando así superar interacciones de poder y realizar profundas transformaciones sociales y personales.
De la investigación a la construcción de la identidad lectora del docente: educación poética y didáctica de la literatura.
Authors: Ibarra-Rius Noelia , Ballester-Roca Josep
Published: July 2021

La poesía constituye una posibilidad de extraordinario potencial para la educación literaria reclamada por diferentes especialistas que sin embargo todavía dista mucho de ser una realidad en los diferentes niveles educativos. Por este motivo, los autores se preguntan sobre la situación de la investigación en torno a la poesía en la didáctica de la literatura contemporánea y ofrecen una aproximación a la producción académica sobre la temática a través de Dialnet y los artículos publicados en tres revistas emblemáticas de didáctica de la lengua y la literatura: Didáctica, Lenguaje y Textos y Tejuelo. El análisis temático revela diferentes tendencias de estudio, pero también lagunas y vías de trabajo futuras, entre las que destaca la apuesta de los investigadores por la formación docente como espacio de intersección entre la investigación y la praxis en la formación de lectores.
Métodos de enseñanza de idiomas y pedagogía de la coasociación: crítica a un distanciamiento.
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Authors: Fernández Martín Patricia
Published: July 2021

El objetivo del artículo es reflexionar sobre la manera en que se está intentando innovar en las metodologías docentes, especial aunque no exclusivamente de las enseñanzas superiores, sin tener en cuenta, por un lado, que enseñar cualquier disciplina implica también enseñar lengua y que, como consecuencia, por otro lado, se están tratando como innovaciones aspectos que llevan décadas formando parte de los presupuestos metodológicos de numerosos métodos, entre los que se encuentran los de enseñanza de idiomas. Partiendo de la hipótesis de que lo que aquí se llama la “pedagogía de la asociación” va paralelo a la historia de los métodos de idiomas, aunque no se comuniquen de ningún modo, especialmente debido al escaso prestigio sociocultural que estos tienen, se comparan ambas formas de entender la docencia en diversos momentos de la historia. Se concluye que, a falta de realizar mayores comparaciones, todo método de enseñanza debería fijarse en la forma en que se enseñan los idiomas porque, sin estos, no puede existir enseñanza alguna.
Metodologías activas para un aprendizaje transmedia de la Lengua y la Literatura
Authors: Hernández-Ortega José , Rovira-Collado José , Álvarez-Herrero Juan Francisco
Published: July 2021

En el presente trabajo se justifica la utilización de las metodologías activas en la Didáctica de la Lengua y la Literatura. El objetivo principal de este estudio pretende dar a conocer una selección de propuestas basadas en el Aprendizaje Basado en Proyectos (ABP) en los cursos de Educación Secundaria y Bachillerato a partir de una serie de variables y descriptores de los mismos que nos permiten identificar elementos constitutivos a todos ellos. El marco teórico, fundamentado en la Orden ECD/65/2015, de 21 de enero, nos permite destacar qué aspectos procedimentales y competenciales se consiguen consolidar gracias a las propuestas analizadas, a partir de iniciativas previas proporcionadas por Gómez Trigueros y Ruiz Bañuls (2017, 2018). El aprendizaje competencial e interdisciplinar (García-Peñalvo y Ramírez, 2017) favorece el desarrollo horizontal de nuevos procedimientos y saberes que tienen en las metodologías activas su máximo exponente.
Lingüística textual y enseñanza del español LE/L2
Authors: Fernández Suárez Aida
Published: July 2021

Reseña de la obra Lingüística textual y enseñanza del español LE/L2, Routledge, 2020. De autoría compartida por una veintena de profesores e investigadores internacionales, cuya selección y edición ha corrido a cargo del catedrático Javier de Santiago-Guervós y de la profesora Lourdes Díaz Rodríguez, a través de sus 316 páginas, los diversos estudiosos presentan distintos enfoques teóricos y prácticos en el campo de la lingüística del texto y examinan posibles aplicaciones didácticas de cada uno de los tipos textuales y géneros discursivos en el contexto del aula del español como LE/L2.
CHARACTERISTIC AND HISTOPATHOLOGICAL FEATURES OF PATIENTS WITH PERFORATED PEPTIC ULCER WHO UNDERWENT OPEN SURGERY THERAPY AT DR.SOETOMO GENERAL ACADEMIC HOSPITAL, SURABAYA, INDONESIA
Authors: Rachmani Alfi Nureta , Putro Mamiek Dwi , Rahniayu Alphania
Published: July 2021

Background: Perforated peptic ulcer is a form of complications from peptic ulcer and one of the most common emergency conditions in medicine. Objective: To describe the characteristic and histopathological features of patients with perforated peptic ulcer who underwent open surgery therapy in Dr. Soetomo General Academic Hospital, Surabaya, Indonesia. Materials and Methods: This study was a descriptive study by observing patients’ data from medical records (secondary data) at Medical Record Center of Dr. Soetomo General Academic Hospital, Surabaya, Indonesia, in 2016. Data obtained were analyzed descriptively. Results: Forty-six patients were identified (34 male, 12 female), most of them were between 56-65 years old for male and ≥66 years old for female. Majority of the subjects had a history of herbal medicine consumption (54%) as risk factors for developing perforated peptic ulcer and the most frequent comorbid diseases were diabetes and hypertension. The histopathological features found mostly were inflammation (100%), necrosis (44%), fibrosis (36%), granulation (17%) and  positive Helicobacter pylori (6%). Conclusion: Majority of the subjects were male, mostly between 56-65 years old for male and ≥66 years old for female. The histopathological features showed that all subjects had inflammations.
Perencanaan Pos Jaga Terpadu dan Terintegrasi pada Kawasan Komplek Mandiri Banjarmasin Utara
Authors: Huzairin Muhammad Deddy
Published: July 2021

Keamanan merupakan salah satu hal terpenting dalam suatu lingkungan permukiman, dimana salah satu prasarananya adalah Pos Jaga. Saat ini Pos Jaga difungsikan hanya sebagai pos untuk petugas keamanan, sehingga tidak menyatu dengan fasilitas umum lainnya. Lebih jauh lagi pos jaga pada waktu kosong merupakan bangunan yang tidak produktif karena tidak terpakai. Komplek Mandiri yang terletak di Jl. Sultan Adam Banjarmasin, merupakan lingkungan perumahan unik yang sebagian kawasannya berada di pinggiran Sungai Awang. Komplek ini memiliki pos jaga setiap jalurnya dengan berbagai bentuk dan ukuran yang masing-masing berdiri sendiri dan tidak terintegrasi satu sama lain dan tidak terintegrasi dengan fasilitas umum yang ada. Karenanya komplek perumahan ini perlu bantuan teknis untuk perencanaan secara keseluruhan yang terintegrasi satu sama lain dan terintegrasi pula dengan fasilitas umum lainnya, sehingga didapatkan pos jaga yang efisien, efektif dan integratif.
Kiat Pembelajaran Daring di Era Covid-19 Sebagai Upaya Penerapan Psikologi Pendidikan Pada Proses Belajar Siswa SMP
Authors: Mayangsari Marina Dwi , Nurrachmah Dwi
Published: July 2021

Pengabdian kepada masyarakat ini bertujuan untuk memberikan pemahaman tentang kiat-kiat pembelajaran melalui penerapan teori psikologi pendidikan seperti cara mengelola stres, menemukan gaya belajar, dan cara mengatur waktu dengan menentukan skala prioritas siswa kelas VII SMP Santa Maria Banjarmasin. Tujuan diberikannya pemahaman ini adalah untuk meningkatkan prestasi siswa yang mengalami penurunan dalam pembelajaran online di masa pandemi covid-19 saat ini. Siswa membutuhkan kiat-kiat agar tetap semangat meningkatkan prestasi selama pembelajaran daring yang diterapkan oleh semua sekolah untuk mengurangi penyebaran covid-19. Siswa merasa kurang siap dalam menerima pembelajaran online karena selama ini mereka selalu menerima pembelajaran tatap muka. Pengabdian kepada masyarakat ini dilakukan melalui seminar online (webinar) dengan tema “Kiat Pembelajaran Daring Di Era Covid-19 dengan Penerapan Teori Psikologi Pendidikan”. Metode yang digunakan dalam pengabdian masyarakat ini adalah ceramah oleh narasumber tentang manajemen stres, gaya belajar, dan manajemen waktu terkait skala prioritas. Hasil yang diharapkan dari pengabdian masyarakat ini adalah mahasiswa dapat mengaplikasikan materi yang telah disampaikan oleh narasumber dengan melakukan manajemen stres dengan baik khususnya dalam pembelajaran online sehingga proses pembelajaran dapat berjalan dengan lancar, mengetahui gaya belajar yang ada pada individu sehingga memudahkan dan meningkatkan motivasi belajar siswa, serta manajemen waktu yang tepat berdasarkan penentuan skala prioritas. Kata Kunci : pembelajaran daring, penerapan teori psikologi pendidikan , siswa SMP
Investigation of the physical and mechanical properties of composite materials obtained using additive technologies
Authors: Solovei Vladyslav , Oleksyshen V. Vitalii
Published: July 2021

The prevalence of polymers in all spheres of human life necessitates the creation of new more effective composite materials based on polymer matrices and reinforcing fillers, which by their characteristics meet the growing needs of society. In modern industry, production speeds are constantly increasing, so additive technologies are becoming a powerful alternative to traditional single and small-scale production.

Among the existing types of additive technologies, the method of fused deposition modeling (FDM) deserves special attention, which provides an opportunity to organize production in conditions of limited material, time and human resources. As opposite to traditional production technologies, such as injection molding, FDM allows you to create products of more complex geometric shapes, using different combinations of polymer matrices and reinforcing fillers and thus create composite materials with the required physico-mechanical, rheological and other properties. At the same time, the main advantages of FDM also cause a number of serious disadvantages, such as anisotropy of the properties of finished products, printing defects that lead to increased yields of defective products, uneven physical and mechanical properties etc. In particular, the anisotropy of the properties of FDM-printed products results in significantly lower strength of the parts in the transverse direction to the 3D printing direction (strand overlay direction) compared to the longitudinal one, and the discontinuity of the reinforcing fibers in the strands of polymeric material leads to reduced strength.

The main areas of research to modernize the process of manufacturing products on a 3D printer using the FDM method are: modernization of components and structures of 3D printers to improve the melting process and layering of materials, aimed at improving print quality and speed, as well as reducing defective yield products; improving the properties of raw materials and creating composite materials to improve the quality of finished products and their characteristics, such as electrical, chemical, mechanical, thermal, environmental, etc .; development of new biopolymers, technologies of their production and use for 3D-printing, which in the future are planned to be used in the creation of bionic parts of human bodies, etc.

To overcome the main shortcomings of FDM technology, it is proposed to modernize the method of 3D printing and the extruder unit of the 3D printer, which allows to create composite materials directly (directly in the extruder), using different combinations of polymer matrices and solid reinforcing fibers.
Determination of the mechanical properties of 3d-printed polymer products by methods of structural mechanics
Authors: Solovei Vladislav , Karvatskii Аnton , Lazarev Taras , Mikulionok Іgor , Omelchuk Iryna
Published: July 2021

Mathematical models of stress-strain state (SSS) for modeling tests of polymer composite samples obtained by fused deposition modeling (FDM) in approximations of isotropic and orthotropic media are formulated. An algorithm for solving the inverse SSS problem to determine the effective mechanical properties in the orthotropic approximation of composite products printed by the FDM method has been developed. Numerical models have been developed to solve inverse SSS problems to determine the effective orthotropic mechanical properties of composite products with different degrees of reinforcement, obtained using additive technologies based on the FDM method. The grid convergence of the developed numerical models by the method of double recalculation is investigated. It is established that the used mesh of geometric models of product samples leads to errors in determining the vector of the modulus of elasticity in the range of 0–3.19%, and the vector of the shear modulus does not exceed 0.05–0.2%. Numerical experiments to determine the effective mechanical properties of samples of composite polymeric materials in the approximation of orthotropic homogeneous medium were performed. The obtained results are compared with the data of calculations by analytical dependences to determine the effective mechanical properties of composite materials. It is shown that the results of numerical studies agree satisfactorily with the corresponding data obtained from analytical dependences in the range of 0.081–5.696%. It is established that all three components of the vectors of modulus of elasticity and shear increase with the degree of reinforcement. The largest increase is observed for the components of vectors  and , which is due to the reinforcement in the direction , and the difference between the values ​​of the components of vectors  and  and  and  is due to the cross-sectional asymmetry of the strand. Dependences for operative prediction of effective orthotropic mechanical properties of composites based on PLA + KEVLAR 29 within the limits of change in the volume fraction of reinforcing fibers up to 5% are obtained. To develop new composite materials with predetermined properties, it is not necessary to perform multivariate, rather complex and cumbersome numerical experiments in solving the inverse SSS problem.
Lorenz- and Shilnikov-Shape Attractors in the Model of Two Coupled Parabola Maps
Authors:   National Research University Higher School of Economics, Kuryzhov E. ,   National Research University Higher School of Economics, Karatetskaia E. ,   National Research University Higher School of Economics, Mints D.
Published: July 2021

We consider the system of two coupled one-dimensional parabola maps. It is well known that the parabola map is the simplest map that can exhibit chaotic dynamics, chaos in this map appears through an infinite cascade of period-doubling bifurcations. For two coupled parabola maps we focus on studying attractors of two types: those which resemble the well-known discrete Lorenz-like attractors and those which are similar to the discrete Shilnikov attractors. We describe and illustrate the scenarios of occurrence of chaotic attractors of both types.
Pelatihan Literasi Digital Pada Sekolahrumah Salihah Yogyakarta: Animasi, Poster Digital, Video Dan Gim
Authors:   Prodi Informatika Universitas Islam Indonesia, Rahayu Nur W. , Sofia Nanum ,   Prodi Psikologi Universitas Islam Indonesia
Published: July 2021

Young people could learn and use technology in formal, informal and nonformal education effortlessly. As a legal nonformal education, homeschooling programs become more popular because the programs demonstrate some advantages, such as customized learning materials, personalized learning methods, and flexible learning schedules. However, some homeschooling communities face several problems related to digital literacy skill because of lack of teachers’ capacity and tools. To support digital literacy, a series of training has been conducted for teachers and students at Salihah Homeschool, Yogyakarta. It consisted of training of modern computer technology for teachers and multimedia training for students and parents. The second training taught students on how to make digital posters, videos, animations, and games related to Covid-19 pandemic. Survey showed half of the students were happy with the training activities. Furthermore, the most preferred lessons were animation and digital posters, while game and video tutorials were perceived difficult. Nevertheless, student participation showed a declining trend since the second day of training. Moreover, some parents expressed happiness with the training contents, but there were also parents who found difficulty as the parents were novice users. It implies future efforts to promote positive awareness of the ease of using IT and continuous monitoring to improve digital literacy.
Pembekalan Ilmu Perhitungan Digital Berbasis Stand Alone dan Cloud Melalui Excel dan Spreadsheet
Authors:   Fakultas Teknologi Informasi Universitas Budi Luhur, Pradana Rizky , Irawati Riri ,   Fakultas Teknologi Informasi Universitas Budi Luhur, Aryasanti Agnes ,   Fakultas Teknologi Informasi Universitas Budi Luhur, Achadiani Dwi ,   Fakultas Teknologi Informasi Universitas Budi Luhur, Irawan Hendri ,   Fakultas Teknologi Informasi Universitas Budi Luhur
Published: July 2021

The current prolonged pandemic requires every individual to do social distancing and physical distancing. This made a difference study and work patterns. In order to overcome this and prepare workforce in the future, it requires an habituation of learning patterns and work through devices you own from your home or residence. To improve the performance of the learning process, an additional learning mechanism is needed on the use of technology, especially in the field of digital calculations. In order to solve this problem on the partner's side, the team made a solution, namely in the form of provisioning with a training pattern using Microsoft Excel which is the basis for a general calculation pattern commonly used both in the world of education and in the world of work and also the use of Google Spreadsheets. The method used in this debriefing is learning by doing, which is a method where every student who follows it will go directly to practice by following instructions from the training instructor from the PKM team. Based on the training provided, the average post test result is 76.6 from the 0-100 range, or increasment 23,28% at from Pre Test to Post test
On the Loop Homology of a Certain Complex of RNA Structures
Authors: Li Thomas J.X. , Reidys Christian M.
Published: July 2021

In this paper we establish a topological framework of τ-structures to quantify the evolutionary transitions between two RNA sequence-structure pairs. τ-structures developed here consist of a pair of RNA secondary structures together with a non-crossing partial matching between the two backbones. The loop complex of a τ-structure captures the intersections of loops in both secondary structures. We compute the loop homology of τ-structures. We show that only the zeroth, first and second homology groups are free. In particular, we prove that the rank of the second homology group equals the number γ of certain arc-components in a τ-structure, and the rank of the first homology is given by γ−χ+1, where χ is the Euler characteristic of the loop complex.
Staff Perceptions of Organizational Patient Safety Climate and Quality Outcomes: An Examination of Outpatient Medical Offices
Authors: Richter Jason P. , Beauvais Brad M , Downs Lynn , Calvert Matthew , Najera Fernando , Wentz Steven , Wolfe Bob , Kim Forest
Published: July 2021

As many as 20-25% of the population experiences harm in outpatient settings, yet these locations are underrepresented in the literature compared to hospitals. We examined results from the Medical Office Survey on Patient Safety Culture designed by the Agency for Healthcare Research and Quality. The survey administered in 2012 gathered perceptions from 23,679 individuals in 934 unique medical offices. We examined associations of organizational patient safety climate composites on frequency of safety and quality issues, overall quality score, and safety rating. We found organizational patient safety composites are all positively and significantly associated with a higher overall quality score and patient safety rating, and fewer safety and quality issues. Office processes and standardization appeared to have the most consistent influence on perceived quality outcomes. Our results indicate it may be advantageous for medical offices to improve on the factors that contribute to positive safety climate.
Tracking the CAR-T Revolution: Analysis of Clinical Trials of CAR-T and TCR Therapies for the Treatment of Cancer (1997-2020)
Authors: Ivica Nikola Aleksandar , Young Colin M
Published: July 2021

Chimeric antigen receptor and T-cell receptor (CAR-T/TCR) cellular immunotherapies have shown remarkable success in the treatment of some refractory B-cell malignancies, with potential to provide durable clinical response for other types of cancer. In this paper, we look at all available FDA CAR-T/TCR clinical trials for the treatment of cancer, and analyze them with respect to different disease tissues, targeted antigens, products, and originator locations. We found that 627 of 1,007 registered are currently active and of those 273 (44%) originated in China and 280 (45%) in the US. Our analysis suggests that the rapid increase in the number of clinical trials is driven by the development of different CAR-T products that use a similar therapeutic approach. We coin the term bioparallels to describe such products. Our results suggest that one feature of the CAR-T/TCR industry may be a robust response to success and failure of competitor products.
Impact of Internet use on the income gap among rural residents: A social capital-based analysis of the mediating effect
Authors: Shangguan Lina , Peng Xiaoyan
Published: July 2021

Based on 2010, 2013 and 2015 CGSS data, the impact of Internet use and social capital on the income gap among farmers in the past five years is assessed at three time points using the OLS method and a quantile regression method. The study finds that (1) the income gap among farmers increases continuously in the five-year period, while Internet use plays a positive impact on farmers’ income growth in all five quartiles; the coefficient differences are all significantly negative, indicating that Internet use plays a positive role in alleviating the income gap between high-income and low-income farmer subgroups, and (2) social capital plays a positive role in moderating the income gap among farmers and that Internet use by farmers expands the boundary of social capital, which in turn increases the income level of and alleviates the income gap among farmers.
Sensitivity of Ultrasonic Coda Wave Interferometry to Material Damage - Observations from a Virtual Concrete Lab
Authors: Finger Claudia , Saydak Leslie , Vu Giao , Timothy Jithender J. , Meschke Günther , Saenger Erik H.
Published: July 2021

Ultrasonic measurements are used in civil engineering for structural health monitoring of concrete infrastructures. The late portion of the ultrasonic wavefield, the coda, is sensitive to small changes in the elastic moduli of the material. Coda Wave Interferometry (CWI) correlates these small changes in the coda with the wavefield recorded in intact, or unperturbed, concrete specimen to reveal the amount of velocity change that occurred. CWI has the potential to detect localised damages and global velocity reductions alike. In this study, the sensitivity of CWI to different types of concrete mesostructures and their damage levels is investigated numerically. Realistic numerical concrete models of concrete specimen are generated and damage evolution is simulated using the discrete element method. In the virtual concrete lab, the simulated ultrasonic wavefield is propagated from one transducer using a realistic source signal and recorded at a second transducer. Different damage scenarios reveal a different slope in the decorrelation of waveforms with the observed reduction in velocities in the material. Finally, the impact and possible generalizations of the findings are discussed and recommendations are given for a potential application of CWI in concrete at structural scale.
Contextualization of Qiwamah Meaning: Reflection on Abdullah Saeed, Application and Consistency
Authors: Musfiroh Mayadina Rohmi , Syamsuddin Sahiron
Published: July 2021

Textual interpretation potentially emerges conflict because it denies the social cultural context in which Al-Qur’an is used a way of life in the present context. Especially if the verse interpreted textually is related to the division of roles and rights that must be fulfilled in a family relationship. This article aims to examine the principles of interpretation, application and consistency of Saeed’s contextual interpretation in the qiwamah verse. This research is a library research with a data collection model and is presented in an analytical descriptive. The results of this study found that: First, Saeed’s contribution in contextual interpretation was a theoretical-methodological contribution by establishing nine principles in treating texts. Secondly, Saeed has applied three hermeneutical stages in interpreting verses related to male and female relationship, but it is not entirely consistent with the contextual interpretation model he initiated, especially in the third (meaning for the first recipient) and the fourth (meaning for the present). He explores the opinions of pre-modern to modern scholars more to describe the shift in context and the possibility of radically changing interpretation but he tends not to convey his personal opinion regarding the meaning of qiwamah. 
Анализ динамики эпидемического процесса COVID-19 в мире за неделю с 03.07.2021 г. по 09.07.2021 г.
Authors: Поспелов Михаил , Иванова Александра , Дмитриева Людмила , Зимирова Анастасия , Чумачкова Елена , Сафронов Валентин , Карнаухов Игорь , Щербакова Светлана , Кутырев Владимир
Published: July 2021

В обзоре представлен анализ эпидемиологической ситуации в странах мира по COVID-19, за неделю с 03.07.2021 г. по 09.07.2021 г.
Kumbang Palma Bertungkai Depan Panjang, Cyrtotrachelus sp. (Coleoptera: Curculionidae), Hama Baru pada Tanaman Kelapa di Indonesia
Authors: Hosang Meldy L.A. , Rahma NFN , Gosal Lidyana M. , Supit Marco M. , Saka Oskar
Published: July 2021

Kumbang  Cyrtotrachelus sp. (Coleoptera: Curculionidae) dikenal sebagai kumbang moncong  rebung bambu (bamboo shoot weevil), kumbang moncong bamboo (Bamboo weevilatau bamboo snout beetle), kumbang moncong bambu raksasa(Giant Bamboo Weevil) atau kumbang palma bertungkai depan panjang (Long Armed Palm Weevil).  Kumbang Cyrtotrachelus sp., pertama kali ditemukan merusak dan mematikan tanaman muda atau bibit kelapa yang berumur > 1 tahun, dan kerusakannya mirip dengan kerusakan akibat hama Rhynchophorus spp. pada tanaman muda. Penelitian ini bertujuan untuk mengidentifikasi kumbang yang merusak tanaman kelapa. Survei dilakukan pada lokasi pembibitan kelapa umur 1-3 tahun di Kebun Percobaan Mapanget, Balai Penelitian Tanaman Palma(Balit Palma) di Manado, Sulawesi Utara. Pengamatan lapangan meliputi gejala serangan, populasi larva, pupa dan imago, sedangkan pengamatan laboratorium difokuskan pada ciri morfologi imago. Hasil penelitian  menunjukkan bahwa kumbang yang merusak kelapa di Kebun Percobaan Mapanget, Balit Palma, di Sulawesi Utara adalah kumbang Cyrtotrachelus sp. Kumbang ini pertama kali ditemukan pada tahun 2018 sebagai hama pada tanaman kelapa. Dari 207 tanaman kelapa yang diobsevasi, ternyata 10,63%  terserang atau mati akibat serangan Cytrotrachelus sp., hal ini sangatmerugikan bagi petani atau pengusaha kelapa karena hama ini merusak bagian pucuk sehingga tanaman mati. Berdasarkanhasil penelitian ini maka perlu dipelajari lebih lanjut bioekologi dan teknik pengendalian yang sesuai untuk hama Cyrtotrachelus sp.
Dampak Ekspansi Kelapa Sawit terhadap Kinerja Perkebunan Kelapa di Indonesia
Authors: Sudjarmoko Bedy , Harianto NFN
Published: July 2021

Perkembangan perkebunan kelapa sawit yang cepat dan dalam waktu yang relatif pendek diduga dapat menimbulkan berbagai permasalahan, salah satunya adalah konversi lahan perkebunan non-sawit menjadi perkebunan sawit.  Penelitian ini dilakukan pada tahun 2019, ditujukan untuk menganalisis pengaruh harga minyak sawit dan perkembangan luas area sawit terhadap kinerja perkebunan kelapa. Kinerja perkebunan kelapa diwakili oleh luas area tanaman kelapa dan tingkat produksi kelapa.  Data yang digunakan dalam penelitian ini adalah deret waktu dari tahun 1992 sampai tahun 2016.  Model ekonometrik disajikan untuk menghubungkan kinerja perkebunan kelapa sawit dengan faktor yang memengaruhinya. Hasil penelitian menunjukkan bahwa ekspansi luas area kelapa sawit tidak berpengaruh negatif terhadap kinerja perkebunan kelapa. Namun perkembangan harga sawit, meskipun secara statistik tidak signifikan, berpengaruh negatif terhadap kinerja perkebunan kelapa. Penurunan kinerja perkebunan kelapa terutama dipengaruhi oleh peningkatan upah perkebunan dan tingkat suku bunga. Berdasarkan hasil penelitian ini dapat disarankan bahwa pembangunan perkebunan kelapa dalam arti luas perlu memanfaatkan dengan baik momentum yang ditimbulkan oleh perkembangan perkebunan sawit.
GIBBERELLIC ACID PRIMING ENHANCES MAIZE SEED GERMINATION UNDER LOW WATER POTENTIAL
Authors: Gnawali Amit , Subedi Roshan
Published: July 2021

Germination is a portentous yield determining factor that is a challenge in the low water potential environment due to disrupted imbibition. Hormonal seed priming can markedly increase the germination on maize even in such a stressful environment. Therefore, research was aimed to analyze the application of gibberellic acid (GA3) priming to maize seeds to minimize the deleterious effects of reduced water potential. GA3 priming was done at 0, 50, 100, 150, and 200 ppm for 12 hours and subjected to drought levels of 0, 0.15, 0.50, 1.05, and 1.75 MPa by using NaCl solution. Different germination parameters, i.e., germination percentage, mean germination time, germination index, relative water content, seedling vigor index, root length, and shoot length, were determined on the final day of the experiment. The results showed that all germination parameters were adversely influenced by low water potential. Every level of GA3 priming has hastened all parameters. GA3 priming at 100 ppm decreased the mean germination time by 35 hours under 1.75 MPa compared to non-primed seeds. GA3 priming increased the shoot length of maize seedlings with a shoot length of 2.9 cm in non-primed seedlings compared to 6.4 cm in 200 ppm GA3 priming under 1.05 MPa. GA3 priming is the best method for the early establishment of maize seedlings in low water potential conditions. As a result, it may be utilized as a low-cost and straightforward approach for establishing maize crops under saline and drought conditions.
Strategy to Improve Corn Production and Export in Lampung Province
Authors: Pujiharti Yulia , Arief Ratna Wylis
Published: July 2021

The population of Lampung continues to increase and the rapid development of the industry causes the need for maize in this area to continue to increase as well. This paper provides alternative steps to increase the production and export of maize in Lampung Province. Maize production can be increased by increasing the harvest area by expanding the planted area to suboptimal untapped land, such as in Mesuji, Pesisir Barat, and West Lampung districts. Another effort that can be made to increase maize production is to apply an intercropping pattern on the same land. Another strategy is to increase productivity by using hybrid maize such as varieties NK-22, P-21, and Bisi-2, providing manure, balanced fertilizers, integrated pest and disease management (IPM), and application of post-harvest technology. Efforts to increase harvested area and productivity need to be continued to increase corn production sustainably. The strategy to increase exports is to increase production and reduce the need for corn for feed and other uses (other than foodstuffs). In this case, the corn that will be used for feed and other uses can be replaced by sorghum.

Keywords: Corn, production, export, strategy

 

Abstrak

STRATEGI PENINGKATAN PRODUKSI DAN EKSPOR JAGUNG DI PROVINSI LAMPUNG

Jumlah penduduk Lampung yang terus meningkat dan perkembangan industri yang pesat menyebabkan kebutuhan jagung di daerah ini terus pula meningkat. Tulisan ini memberikan alternatif langkah-langkah peningkatan produksi dan ekspor jagung di Provinsi Lampung. Produksi jagung dapat ditingkatkan melalui penambahan luas panen dengan memperluas areal tanam ke lahan suboptimal yang belum dimanfaatkan, seperti di Kabupaten Mesuji, Pesisir Barat, dan Lampung Barat. Upaya lain yang dapat dilakukan untuk meningkatkan produksi jagung adalah menerapkan pola tumpangsari pada lahan yang sama. Strategi lainnya yaitu meningkatkan produktivitas dengan penggunaan jagung hibrida seperti varietas NK-22, P-21, dan Bisi-2, pemberian pupuk kandang, pupuk berimbang, pengelolaan hama dan penyakit secara terpadu (PHT), dan penerapan teknologi pascapanen. Upaya peningkatan luas panen dan produktivitas perlu diteruskan agar produksi jagung meningkat secara berkelanjutan. Strategi peningkatan ekspor yaitu dengan meningkatkan produksi dan mengurangi kebutuhan jagung untuk pakan dan penggunaan lain (selain bahan makanan). Dalam hal ini, jagung yang akan digunakan untuk pakan dan penggunaan lain dapat digantikan oleh sorgum.

Kata kunci: Jagung, produksi, ekspor, strategi