bluuebunny/crossref_metadata_2025 huggingface dataset:
Tiểu văn hóa đô thị: Khái niệm và lý thuyết
Authors: Quyên Lâm Thị Ánh
Published: April 2021

Không có định nghĩa thống nhất về “tiểu văn hóa”. Tuy nhiên, đa số học giả đều nhất trí tiểu văn hóa là những nhóm người với những mối quan tâm chung và thực hành chung. Các tiểu văn hóa có những mức độ khác nhau so với văn hóa chủ đạo.

Nghiên cứu về tiểu văn hóa đô thị tập trung vào 3 lối tiếp cận/lý thuyết chính: lối tiếp cận sinh thái học của Trường phái Chicago về những “khu vực tự nhiên/natural areas”; lý thuyết thành phần/nhấn mạnh các yếu tố như giai cấp, nghề nghiệp, họ tộc, dân tộc…; “Lý thuyết tiểu văn hóa về tính đô thị” của Claude Fischer nhấn mạnh môi trường đô thị thúc đẩy sự cố kết, sự sáng tạo thể hiện ở các tiểu văn hóa nhờ khối lượng tới hạn.
The Microrna 29 family and its regulation
Authors: Linh Le Thi Truc
Published: April 2021

Since miRNAs have broad effects on tissue homeostasis, and disease development, it is particularly interesting to work out how miRNAs themselves are being regulated. Such data could provide crucial information for further understanding the mechanism underlying disease development and for being able to manipulate these miRNAs therapeutically. Generally, the expression of miRNAs can be regulated transcriptionally, epigenetically, or

controlled by different stimuli e.g. cytokines and growth factors. In review, just transcription factors, cytokines, and growth factors controlling the miR-29 family expression in human diseases were for the first time investigated.
Propagating arbuscular mycorrhizal fungi associated with coffee plant by using the herbaceous host
Authors: Quyen Dang Hoang , Duong Vu Thuy , Hoang Pham Nguyen Duc
Published: April 2021

Coffee (Coffea spp.) is one of important industrial crops. Additionally, arbuscular mycorrhizal fungi (AMF) provide many benefits for plants such as increasing nutrient uptake, enhancing tolerance in drought and stress

condition, etc. Therefore, preservation and propagation of AMF spores collected from coffee’s rhizosphere are necessary for coffee cultivation. The AMF preservation on coffee plant is not feasible because coffee is a long-term plants, which led to study on symbiotic ability of AMF on several short-term host plants (maize (Zea mays), plantain (Plantago spp.), rice (Oryza sativa), beggarticks (Bidens pilosa), and bahia grass (Pensacola bahia)) to maintain AM association. Investigation of symbiosis ability with four types of AMF spores showed that maize had the highest rate of fungal infection. The total number of AMF spore per 50g soil after 3 months of inoculation on maize reached 352 spores, which was 4.1 times higher than that of the origin while the lowest figure recorded in bahia grass is with only 2.3 times.
Alpha-momorcharin: Protein tiềm năng được ứng dụng trong nông nghiệp
Authors: Thảo Nguyễn Thị Thu , Linh Lê Thị Trúc , Dũng Đặng Thanh
Published: April 2021

Alpha-momorcharin (α-MMC) thuộc tuýp I protein bất hoạt ribosome (ribosomeinactivating protein) được tìm thấy trong trái khổ qua. Hiện nay, α-MMC đang được nghiên cứu như một protein chức năng có tiềm năng ứng dụng trong y dược và nông nghiệp. Ngoài khả năng chống lại khối u trong giai đoạn đầu của ung thư của α-MMC trong y dược, những nghiên cứu gần đây cho thấy protein này có khả năng kháng virus, kháng vi khuẩn, kháng nấm trong nông nghiệp cây trồng. Hiểu được cơ chế hoạt động của α-MMC sẽ góp phần quan trọng trong việc tìm ra phương pháp cũng như là sản xuất chế phẩm vi sinh ứng dụng vào lĩnh vực nông nghiệp. Trong nghiên cứu này, chúng tôi thảo luận cơ chế hoạt động của α-MMC và khả năng kháng nấm và virus trong cây trồng.
Các marker phân tử ứng dụng trong nhận diện dòng ớt cay bất dục đực bào chất (Cytoplasmic Male Sterility - CMS)
Authors: Linh Lê Thị Trúc , Phượng Hồ Thị Bích , Kính Lê Thị
Published: April 2021

Bất dục đực bào chất (cytoplasmic male sterility, CMS) là một tính trạng di truyền làm mất chức năng của hạt phấn. Đây là một trong những tính trạng quan trọng trong sản xuất hạt giống lai. Đối với giống lai ớt cay thương

mại, thời gian nhận diện các dòng ớt bất dục đực bào chất bằng phương pháp truyền thống mất nhiều thời gian. Do đó, các marker phân tử đang được phát triển để khắc phục khó khăn này. Với mục đích phát hiện các dòng ớt bất dục đực tại Việt Nam bằng marker phân tử, chúng tôi tiến hành phân tích dữ liệu từ các công trình nghiên cứu trong và ngoài nước. Kết quả phân tích cho thấy, để có thể nhận diện chính xác dòng ớt CMS cần sử dụng kết hợp hai yếu tố: (1) yếu tố nhận diện bào chất S và bào chất N, và (2) yếu tố nhận diện gene Rf và fr. Mỗi yếu tố có nhiều loại marker khác nhau được phát hiện. Bài báo này sẽ giúp cung cấp cơ sở khoa học để chọn lựa các marker tiềm năng và phù hợp với điều kiện hiện tại ở Việt Nam trong phát hiện dòng ớt CMS. Ngoài ra, mồi cần thiết cho phản ứng PCR để nhận diện dòng ớt CMS đã được xác định để làm cơ sở cho các nghiên cứu thực nghiệm sau này
Nghiên cứu quy trình chiết xuất và tinh chế Rotudin từ củ bình vôi (Stephania rotunda lour.) trồng tại tỉnh Hòa Bình
Authors: Hoàng Nguyễn Minh , Quỳnh Tôn Nữ Yên
Published: April 2021

Củ bình vôi (Stephania rotunda Lour.) trồng tại tỉnh Hòa Bình được sử dụng làm nguyên liệu để chiết xuất l-tetrahydropalmatine (tên hoạt chất thuốc là Rotundin) C21H25NO4 - một alkaloid có tác dụng an thần, gây ngủ, giảm mất trí nhớ. Mục đích của nghiên cứu là tìm ra một quy trình chiết xuất rotudin đơn giản, rẻ tiền, hiệu quả để có thể ứng dụng. Kết quả thu được cho thấy:

- Phương pháp ngâm chiết với tỉ lệ 1/6 giữa bột khô củ bình vôi và thể tích dung dịch H2SO4 1% cho hiệu suất trích ly cao nhất 0,35%. Hợp chất thu được đạt độ tinh khiết 98% (trên HPLC).

- Cấu trúc hóa học được xác nhận trên phổ NMR.
Tổng hợp nano artesunate ứng dụng trong y sinh học
Authors: Tân Phạm Thị Hồng
Published: April 2021

Trong bài báo này, hạt nano β-cyclodextrin–alginate–artesunate đã được tổng hợp với kích thước từ 20nm – 80nm, kích thước hạt khá đồng đều ứng dụng làm tăng khả năng dẫn truyền thuốc. Đặc điểm hình thái và cấu trúc của hạt nano được xác định bằng SEM và TEM. Bằng phương pháp sắc ký bản mỏng TLC, vị trí vết của mẫu chuẩn artesunate và mẫu thử nano β-cyclodextrin–alginate–artesunate ngang bằng nhau, chứng tỏ được sự có mặt của artesunate trong mẫu nano tổng hợp được.
A REVIEW AND CRITIQUE OF COMMANDER THEORY
Authors: Kim Il-woon , James Phillip C.
Published: April 2021

The development of accounting was marked by three key theories namely: the proprietary theory, the entity theory and the fund theory. The commander theory was subsequently introduced to address the criticisms of the previous theories. This paper, therefore, outlines the history and development of the commander theory, it also outlines the essence of the theory and discusses general criticisms levied against it.  Despite some apparent weaknesses of the commander theory, one of which is that it is in-ward focused, there-by ignoring those outside the firm, it is simultaneously argued that the commander theory should be viewed as a significant theoretical framework in the formulation of accounting standards.

JEL Classification Codes: M41.
Are Resource-Rich Regions Impacted More by Covid-19 Pandemic? Comparing Economic and Mobility Impact in Indonesia’s Provinces
Authors: Hilmawan Rian , Aprianti Yesi
Published: April 2021

The coronavirus pandemic has caused negative impact on economy as it limits people interactions from their normal life. This paper tries to compare the effects on economic growth and visits by locals to central economic places (retail and recreation, grocery and pharmacy stores, parks, and workplaces) of Covid-19 in Indonesia’s provinces as social restrictions applied. By using Google’s mobility report data combined with the second quarterly GRDP data across Indonesia’s sub-national level, we compare economic and mobility performances between “the treated provinces” located in Sumatra, Kalimantan and Papua Islands (SKP) who’s their economy has been dominated by natural resources-based sectors (e.g., palm oil, natural gas, oil and coal) and “the untreated provinces” in Java-Bali-and Eastern Regions (Sulawesi, Maluku, Nusa Tenggara), henceforth JBE. We visualize and provide scatterplots to depict relationships between selected variables. We also test whether each impact differs between SKP and JBE. Our study finds that while almost all provinces have been impacted negatively during the pandemic, its effects graphically differ among regions, while Java’s provinces have looked to be affected strongly. However, our statistical analyses based on Welch’s and Levene’s tests provide weak evidence that the pandemic harms regions disproportionately.
"Simulation of an Isolated Wind Power System with Battery Energy Storage and Dump Load"
Authors: Sebastián Rafael , Quesada Jerónimo
Published: April 2021

"This study presents the modelling and dynamic simulation of an Isolated Wind Power System (IWPS) consisting of a Wind Turbine Generator (WTG), a synchronous machine (SM), consumer load, dump load (DL) and a Battery Energy Storage System (BESS). First the IWPS architecture and the dynamic models of the IWPS components are described. Second, the control requirements for frequency regulation of the IWPS are studied and a PID regulator to govern the active power stored+dumped by the BESS+DL combination or supplied by the BESS along with a power sharing algorithm between the BESS and DL is presented. Finally the IWPS is simulated facing to variations to load and WTG power. The simulation results are given showing graphs of the main electrical variables in the IWPS: system frequency and voltage and active power in each component. The results show how the BESS or BESS+DL combination regulates correctly the isolated system frequency. The results also show that the BESS improves the IWPS reliability when compared with the frequency control obtained using only the DL."
"Infrastructure linking for E-Mobility – approach to integrative traffic and energy network planning"
Authors: Schmidtke Niels , Weigert David , Behrendt Fabian
Published: April 2021

"This paper gives an introduction to the strategic research field of the cross-infrastructural planning process and the system operation for charging stations from the traffic and energy network view. In the course of the energy turnaround in Germany (grid and plant expansion, liberalization) as well as changes in the transport sector (increasing traffic volume vs. increasing loss of transport infrastructure [Radke 2017; Daehre 2012]) complex cross-infrastructure solutions and tools (simulation systems) will be needed in order to ensure the technical reliability as well as the economic and ecological orientation of these systems. Based on the current stock of charging points and the forecasted total demand, there is a need for the comprehensive construction of charging infrastructure for electric vehicles. This creates user acceptance and lowers the barriers to electric vehicles in the private and commercial sectors."
Determining Suitable Regions for Potential Offshore Wind Farms in Bandırma Bay using Multi-criteria-Decision-Making Method
Authors: KARİPOĞLU Fatih , ÖZTÜRK Samet , GENÇ Mustafa Serdar
Published: April 2021

Wind energy is an environmentally friendly, profitable, and renewable energy resource. Wind energy eployment is increasing in the last two decades. In this paper, Bandırma bay which has a potential for offshore wind deployment is studied to determine the most suitable area in it and eventually potential offshore power capacity of the location is estimated. This study combines applications of Geographical Information System and Multi-Criteria- Decision-Making Methodology to obtain fast results supported with visual documentation. In this scope, eight standard criteria such as wind speed, water depth, bird migration lines are applied and

nvestigated in detail by using Geographical Information System. It is found that there is sufficient wind speed t the shallow level of the sea. Consequently, two locations are found to be suitable; one is on the northwest and the other one is on the north east of Bandırma, with capacities of 72 MW and 48 MW, respectively.
Produção de mudas de alface cv. “Stella-Manteiga” em diferentes combinações de substratos e recipientes alternativos
Authors: Rodrigues Iraiane Oliveira , Xavier Poliana Soares , Santos Ana Luiza Nonato , Neves José Maria Gomes , Barbosa Edimilson Alves
Published: April 2021

O artigo apresenta um relato de experiência de estudantes do curso de Engenharia Agronômica do Instituto Federal do Norte de Minas Gerais – Campus Almenara sobre o projeto de pesquisa realizado no próprio campus. A utilização de substratos e recipientes alternativos, renováveis, de fácil aquisição e com baixo custo possibilita aos agricultores da região do Baixo Jequitinhonha a produzirem mudas de alface de uma forma economicamente viável e mais sustentável para o sistema de produção agrícola. O objetivo do projeto foi avaliar o efeito de recipientes alternativos e diferentes composições de substratos na produção de mudas de alface cv. “Stella-Manteiga”. Foram testados dois tipos de recipientes alternativos: ½ caixa de leite, com a capacidade de 400 ml e copos descartáveis, com a capacidade de 100 ml; preenchidos com 10 diferentes substratos orgânicos. Os resultados do experimento mostraram que as mudas de alface cv. “Stella-manteiga” obtiveram melhores resultados na produção de massa seca da parte aérea (MSPA) quando cultivados em substratos contendo solo + esterco bovino (T2) ou solo + esterco bovino + fibra de coco (T6) em recipiente de caixa de leite.
Palma forrageira na alimentação de ruminantes: revisão
Authors: Brandão Amanda Oliva , Eustáquio Filho Antônio
Published: April 2021

O sucesso da pecuária no semiárido brasileiro tem forte relação com a regularidade e distribuição das chuvas na região. Dessa forma, o cultivo de culturas com menores exigências hídricas passam a ser a chave para manutenção dos sistemas de produção, especialmente, de ruminantes. Neste cenário, a palma forrageira surge como uma excelente alternativa para a alimentação de ruminantes. A palma forrageira é excelente fonte de energia, rica em carboidratos não fibrosos e nutrientes digestíveis totais, porém não se recomenda a utilização deste produto exclusivamente na alimentação animal, devido ao seu baixo teor de fibras em detergente neutro e proteína. Desta forma, recomenda-se associá-la a uma fonte de fibra de alta efetividade e de proteína, para a manutenção das condições normais do rúmen. O objetivo com esta revisão foi realizar um levantamento bibliográfico sobre as principais características nutricionais e formas de uso da palma forrageira na alimentação de animais ruminantes além de reunir informações sobre a viabilidade econômica do uso dessa cactácea.
Latinx Children’s Push and Pull of Spanish Literacy and Translanguaging
Authors: Bussert-Webb Kathy , Masso Hannah , Lewis Karin
Published: April 2021

We explored 19 Latinx children’s literacies in Spanish and translanguaging by asking, “What are Latinx children’s experiences and beliefs regarding Spanish and translanguaging reading and writing? How do tutorial staff and teacher candidates (TCs) help the youth to resist hegemonic and bracketing practices of English-only?” This study took place in a South Texas tutorial agency, where children voluntarily attended for after-school homework help. Data sources consisted of questionnaires, interviews, focus groups, hobby essays, and newsletter articles. Most children reported negative school-related language experiences and expressed dislike and unease regarding Spanish and translanguaging reading and writing, although they lived less than 10 miles from the Mexico border. However, two tutorial staff and 15 TCs provided counter narratives and modeled that Spanish and translanguaged (hybrid) reading and writing are neither wrong nor difficult. Schools’ accountability pressures and the U.S. socio-political milieu move language to the center (centripetal forces), while forces that resist normalization are centrifugal. Implications relate to how neighborhood educational centers, TCs, and classroom teachers can help subaltern youth to resist centripetal language forces.
Evaluation of the Socio Emotional Learning (SEL) Activities on Self-Regulation Skills Among Primary School Children
Authors: Coskun Kerem
Published: April 2021

I seek the experience of the primary school children who participated in the SEL Activities instructing self-regulation skill. I designed the SEL Activities and conducted them with the participant students’ classroom teacher. I used phenomenological methods (Moustakas, 1994) to collect data through semi-structured interviews with primary school children who are 10-years-old and analysed the data by identifying significant statements and then clustering the significant statements into themes, writing textural and structural descriptions, before finally arriving at a composite description. Findings demonstrate that through the SEL Activities, the participant children became more competent in realizing the influence of emotions on their behaviours and in using practical and strategic knowledge on self-regulation skills.
So You Want to Do Post-Intentional Phenomenological Research?
Authors: Soule Katherine , Freeman Melissa
Published: April 2021

In this article, phenomenology, both in its philosophical and methodological variants, is introduced in the form of a fictional dialogue between a student justifying her interest in using a post-intentional phenomenological approach in her dissertation to her major professor. The dialogue tackles founding philosophers, notably Husserl, Heidegger, and Merleau-Ponty; contemporary researchers, including A. Giorgi, B. Giorgi, van Manen, and Vagle; several phenomenological concepts, such as intentionality, bracketing, and bridling; and provides examples of three distinct approaches to phenomenological research.
Advocating for the Use of Poetry and Mixed Media Work in Analytic Processes
Authors: DeHart Jason
Published: April 2021

As part of my analytical process of looking at data collected from a pilot study on the use of film in the classroom, I discovered that I had the space to engage in a creative analysis process. In this article, I propose that creative methods be employed when analyzing data. An arts-based approach to research (Barone & Eisner, 1997) led to two creative products for my research: Poetry, which has been used with research in the past (Cahnmann, 2003; McCullis, 2013) and mixed media. This article explores relevant literature about integrating poetry and other arts into analysis and serves to advocate for an arts-based process when trying to understand and represent study data.
Musical Memos in Qualitative Inquiry: Creating Artful, Embodied and Salient Reflections
Authors: Boyle Dale , Butler-Kisber Lynn
Published: April 2021

This article presents musical memoing as an arts-based reflective process and as a way to engage with and represent data in qualitative inquiry. Used in conjunction with more well-known approaches to data analysis (constant comparison and narrative analysis), musical memos serve to pull forth and highlight salient understandings emerging in the analyses. Moreover, musical memoing allows for the creation of concise yet holistic representations of the data, which can be performed in an embodied manner to enhance understanding of phenomena. The role of musical memoing is discussed within the context of a research study carried out at McGill University entitled, “Exploring a University Teacher’s Approach to Incorporating Music in a Cognition Psychology Course.” A brief overview of the research findings is presented, as well as the methodological implications musical memoing has for future research.
Research with Children: Context, Power, and Representation
Authors: Lane Danielle , Blank Jolyn , Jones Phyllis
Published: April 2021

In this article, we examine methodological issues qualitative researchers encounter when they engage in research with children. Within this view, qualitative research is employed with children but not on children and focus is placed upon children’s voices, agency, and the ways they participate with researchers in the research process (Einarsdóttir, 2007). Our discussion draws upon a study we conducted with four- and five-year-old children on the preschool playground. We reflect upon methodological issues pertaining to researching with children; issues of context, power, and representation.
Interviewing Criminal Justice Populations without Electronic Recording Devices: A Guide
Authors: Cheah Phaik Kin , Unnithan N. Prabha , Sandela Raran Annie Margaret
Published: April 2021

We outline a guide for facilitating face-to-face in-depth interviews without the use of electronic recording devices in criminal justice research. It is designed to provide researchers with step-by-step directions they can follow to conduct interviews when recording equipment is not available, not allowed, or not used due to other reasons. In-depth interviews are common in qualitative criminal justice research but require researchers to be highly flexible and adaptive. When interviews are conducted on sensitive issues or carried out in high security environments, recording devices may not be permitted or welcomed. This protocol aims to make the interviews more structured, systematic and organized when electronic recording devices are not used in an attempt to enhance the accuracy and transparency. These guidelines were developed based on practical and theoretical foundations.
Vulnerable Vets? How Gatekeeping and Stereotypes Shape Access to Student-Veterans in the Qualitative Interview Process
Authors: Morales Erica , Narayan Anjana , Atienza William
Published: April 2021

Based on in-depth interviews we conducted with more than 30 student-veterans enrolled in higher education institutions, in this paper we examine the methodological challenges of collecting qualitative interview data from this population. Situated within the larger interdisciplinary literature of doing qualitative research with vulnerable groups, we explore the implications of student-veterans being labeled as vulnerable by ethics review boards and institutional agents such as veteran’s organizations. Based on our research experience, we argue that framing student-veterans as vulnerable can lead to further stereotyping of this group and to difficulties in accessing an already under-researched population. In addition, our inability to hear the voices and experiences of student veterans can impact the kind of services and support that higher educational institutions can provide them.
From an Active Learner to a Reflective Practitioner: Learning to Become a Professional Indonesian EFL Instructor
Authors: Zulfikar Teuku
Published: April 2021

For teachers, professional development is a lifelong journey and a complex and multi-dimensional process. Effective professional development requires practitioners to engage not only in training but also in habitual reflection. However, research on reflective learning within the context of Indonesian English as a Foreign Language (EFL) teaching, at both secondary and tertiary levels, is limited. Using the-Self Study, Qualitative Inquiry this article explores my reflective practices in the Indonesian educational context. It is structured around a narration of my roles as an active EFL learner and instructor which have led me to become a reflective practitioner. The article starts with my first contact with English and then goes on to my later learning-teaching experiences. It highlights the process of my reflective learning experience and its influence on my practices as an EFL instructor. In doing so, it aims to encourage similar awareness and reflective professional development in Indonesian EFL teachers. My reflection reveals that learning from experience allows educational practitioners to improve professional competent.
Poetry across the Curriculum: New Methods of Writing Intensive Pedagogy for U.S. Community College and Undergraduate Education: A Book Review
Authors: Cousik Rama
Published: April 2021

This book review presents the basic premise of the book, which is use of poetry to teach undergraduate courses. The author of the review shares her own experiences with using poetry to teach college courses and highlights the beginning chapters. The editors of the book, Frank Jacobs, Shannon Kincaid and Amy. E. Traver, and other authors share their experiences from a workshop on the use of poetry in college. Empirical and anecdotal examples do well to underscore the need for more arts-based education and particularly poetry in teaching college courses.
A Lighthouse in the Sea of Qualitative Textbooks: A Book Review of Kakali Bhattacharya’s Fundamentals of Qualitative Research—A Practical Guide
Authors: Adams Joshua
Published: April 2021

Kakali Bhattacharya (2017) effortlessly advances the pedagogical literature on qualitative research. As a scholar-practitioner of the field of criminal justice, a recent doctoral graduate, and a qualitative methodologist, reading this book allowed me to reflect on my strengths and weaknesses in conducting qualitative inquiry. This review presents the primary intent of the book, which is to be a supplemental text for an introductory qualitative research methods course. Bhattacharya (2017) offers a succinct and straightforward recipe to improve one’s understanding of qualitative research methods, as well as provides best practices while doing so. This book is the perfect roadmap for the instructor who is asked to facilitate his or her first qualitative research methods course to follow or for a student to supplement their course text.
Koreksi Instrumen pada Seismometer Broadband Trilium-120p dan Short-Period DS-04A Co-Located di Stasiun Geofisika Denpasar (Studi Kasus : Gempabumi Lombok 31 Maret 2016)
Authors: Pratama I Putu Dedy
Published: April 2021

Dalam penjalarannya sinyal seismik yang terekam oleh alat merupakan konvolusi dari sumber, penjalaran, efek lokal, dan yang menjadi pengaruh terbesar adalah respon instrumen.Oleh karena itu, sangat penting untuk menghilangkan respon instrumen pada rekaman seismogram untuk mendapatkan getaran tanah yang sesungguhnya. Penulis menggunakan rekaman gempabumi Lombok pada 31 Maret 2016 pukul 09:34:43 UTC magnitude 4,7 koordinat 8.480 LS dan 116.020 BT dengan kedalaman 10 km yang terekam oleh seismometer Broadband Trilium-120P dan Short-period DS-04A yang terpasang co-located di Stasiun Geofisika Denpasar. Penelitian ini bertujuan untuk meningkatkan nilai korelasi kedua sinyal dari alat yang berbeda sehingga dapat menginterpretasikan getaran tanah sesungguhnya.Untuk memperoleh nilai getaran tanah yang sesungguhnya diperlukan informasi poles dan zeros guna mendapatkan nilai dari fungsi transfer yang selanjutnya didekonvolusi dengan sinyal seismogram. Hasil penghilangan pengaruh respon instrumen menunjukan kemiripan antara sinyal Broadband dan Short-period secara kualitatif dan peningkatan nilai normalisasi korelasi sinyal secara kuantitatif.Perubahan spektrum frekuensi pada sinyal setelah dekonvolusi menunjukan hasil kemiripan antara sinyal setelah koreksi instrumen dibandingkan dengan sebelum koreksi instrumen.
Analisis Dinamika Atmosfer Dan Distribusi Awan Konvektif Menggunakan Teknik Red Green Blue (RGB) Pada Citra Satelit Himawari-8: Studi Kasus Banjir Jakarta 30 Desember 2019 - 1 Januari 2020
Authors: Abay Fryska Mazayyah J.
Published: April 2021

Hujan ekstrem yang melanda wilayah Jakarta sejak tanggal 31 Desember 2019 hingga 1 Januari 2020 menyebabkan sejumlah wilayah di Jakarta terendam banjir. Berdasarkan pengukuran curah hujan harian yang diukur pada tanggal 1 Januari 2020, curah hujan tertinggi terukur sebesar 377 mm di Pangkalan TNI Angkatan Udara Halim Perdana Kusuma. Analisis dari kejadian ini menggunakan Teknik RGB (Red Green Blue) pada citra satelit Himawari-8. Terdapat beberapa skema RGB yang mendukung penelitian ini yaitu, skema 24-Hours Microphysics, Day Microphysics, Night Microphysics, Air Mass dan Day Convective Storms. Hasil analisis time series suhu puncak awan menunjukkan pertumbuhan awan penyebab hujan ekstrem dimulai pada pukul 08.00 JLT dan hujan mulai melanda wilayah Jakarta sekitar pukul 09.15 JLT. Dari skema RGB diketahui terdapat massa udara hangat di wilayah Jakarta yang merupakan pemicu pertumbuhan awan Cumulonimbus. Tujuan dari penelitian ini ialah untuk mengetahui dinamika atmosfer dan sebaran awan konvektif saat terjadi banjir di Jakarta tanggal 31 Desember 2019 – 1 Januari 2020
Pengukuran dan Analisa Data Radiasi Matahari di Stasiun Klimatologi Muaro Jambi
Authors: Sianturi Yesi
Published: April 2021

Radiasi matahari merupakan salah satu besaran paling penting dalam penelitian di bidang klimatologi, karena berperan sebagai penggerak dalam sebagian besar proses dinamis di atmosfer. Pengukuran beberapa parameter radiasi matahari di Stasiun Klimatologi Muaro Jambi dilakukan menggunakan satu set instrumen automatic solar radiation station (ASRS) sejak tahun 2017. Dalam tulisan ini, metode pengukuran, kontrol kualitas data, dan hasil analisa variabilitas dari tiga jenis radiasi matahari – radiasi langsung, radiasi baur, dan radiasi global – dalam periode 2018 – 2019, telah dijabarkan. Hasil kontrol kualitas data menunjukkan bahwa secara umum ketiga parameter radiasi tersebut memiliki rentang nilai yang baik. Selama tahun 2018 – 2019, ketiga parameter radiasi tersebut mencapai puncak pada pukul 13.00 LT dan nilai rata rata akumulasi radiasi global dalam sehari mencapai 4.4 ± 1.0 kWh/m2 day-1. Puncak insolasi di Stasiun Klimatologi Muaro Jambi terjadi pada bulan Maret dan September, yang bertepatan dengan waktu terjadinya equinox. Kuatnya pertumbuhan awan di wilayah Jambi mempengaruhi pola radiasi yang mencapai permukaan bumi.
Perubahan Tingkat Kenyamanan Berdasarkan Indeks Panas (Humidex) di Kalimantan Barat
Authors: Aditya Fanni
Published: April 2021

Tingkat kenyamanan merupakan interaksi antara manusia dengan lingkungan yang berkaitan dengan cuaca dan iklim. Tingkat kenyamanan ini cukup mempengaruhi kegiatan manusia baik di dalam maupun di luar ruangan. Kenaikan suhu yang diakibatkan oleh pemanasan global menyebabkan potensi perubahan tingkat kenyamanan yang dirasakan oleh manusia. Kalimantan Barat yang berada di wilayah khatulistiwa umumnya memperoleh radiasi matahari yang intensif sehingga suhu udara rata-ratanya relatif tinggi. Penelitian ini dilakukan untuk mengetahui tren perubahan suhu dan perubahan tingkat kenyamanan termis akibat perubahan iklim dengan menggunakan humidex di wilayah Kalimantan Barat. Data yang digunakan adalah data suhu dan kelembaban rata-rata bulanan selama 30 tahun di enam stasiun, yaitu Stasiun Klimatologi Mempawah, Stasiun Meteorologi Supadio, Stasiun Meteorologi Sambas, Stasiun Meteorologi Melawi, Stasiun Meteorologi Sintang, dan Stasiun Meteorologi Ketapang. Hasil perhitungan humidex di wilayah Kalimantan Barat menunjukkan rata-rata humidex bulanan berkisar  antara 37.5°C hingga 39.2°C. Nilai ini menunjukkan bahwa kondisi tidak nyaman akibat panas sangat umum dirasakan di Kalimantan Barat. Suhu di Kalimantan Barat mengalami peningkatan selama periode 1990-2019. Peningkatan ini mengindikasikan telah terjadi perubahan iklim di Kalimantan Barat. Humidex juga mengalami tren peningkatan pada periode 1990-2019. Namun, tren peningkatan tersebut masih pada rentang kategori “perasaan tidak nyaman akibat panas” (35⁰C - 39⁰C).
Effect of Perioperative Instructions on Postoperative Discomforts and Satisfaction Level among Patients Undergoing Thyroidectomy
Authors: Abd Elazeem Yasmin F. M. , Abdel-Karim Nesrine E. M. , Aly Eman F. A. M.
Published: April 2021

Context: Thyroidectomy is a type of surgery directed to remove all or part of the thyroid gland. Documented complications after thyroidectomy are rare, but their consequences can often be life-threatening. Patients who receive perioperative instructions about what to expect after the operation often have better coping with postoperative discomforts minimizes post-surgical complications and reduces the duration of hospitalization. It also improves patient safety and reduces the anxiety induced by the intervention. In addition to this, it elevates the patient's satisfaction level. So, perioperative instructions are essential.

Aim: The present study aims to determine the effect of perioperative instructions on postoperative discomforts and satisfaction levels among patients undergoing thyroidectomy. The study hypothesized that postoperative patients who receive the perioperative instructions exhibit fewer discomforts and more satisfaction than those who do not.

Methods: The study utilize a quasi-experimental (study/control group) design. It was conducted at the Head and Neck Surgical Department of Alexandria Main University Hospital.  A convenience sample included 70 adult patients were selected from the setting mentioned above who have enrolled either study or control groups, 35 patients, for each. Three tools were used for data collection. A structured interview questionnaire aimed to assess the socio-demographic characteristics and clinical data of the study subjects. Discomfort assessment scale to rate the patient's level of discomfort against six common postoperative problems. Perioperative instructions patients’ satisfaction questionnaire developed to determine the patients' ′ satisfaction level regarding perioperative instructions.

Results: There were statistically significant differences among the study and control groups in the first, second, and third weeks regarding total discomfort score level, where t=3.606, p=<0.001; t=3.049, p=<0.001; t=21.213, p=<0.001respectively. The studied patients had higher level of satisfaction compared to those in the control group with statistically significant differences regarding overall scores of satisfaction, and with preoperative instruction, postoperative instruction, and psychological preparation, where t=48.382, p=<0.001; t=6.023, p=<0.001; t=27.997, p=<0.001; t=32.939, p=<0.001respectively.

Conclusion: The study hypotheses were accepted as postoperative patients who receive perioperative instructions exhibit less discomfort and a more satisfying level than those who do not. The perioperative instructions should be applied to the care of patients undergoing thyroidectomy to decrease patients' discomfort and increase their satisfaction level.
Nursing Intervention for Mothers Having Children Suffering from Acute Bronchitis
Authors: El-Sayed Zienab F. , Abd El-Sattar Radia
Published: April 2021

Context: Acute bronchitis is one of the most common causes of chronic respiratory diseases in childhood with a significant impact on children.

Aim: The study aimed to evaluate the effect of nursing intervention on mothers' knowledge and practices regarding caring for their children suffering from acute bronchitis.

Methods: A quasi-experimental design (one group pre/post-test). The study was conducted at the Pediatric Emergency Department and Outpatient clinic in children's hospital affiliated to Ain Shams University Hospitals. A convenient sample of 52 children newly diagnosed with acute bronchitis accompanied their mothers who were recruited for this study. Two tools were used to collect data: a structured interview questionnaire, and mothers' observation checklist.

Results: The study shows that there was a highly statistically significant improvement found in the post-test compared to their pre-test, regarding the mothers' knowledge and practices related to the care of their children suffering from acute bronchitis.

Conclusion: The implementation of a nursing intervention program improves the mothers' knowledge and practices related to their children with acute bronchitis. These study findings were supporting the study hypotheses. Continuous mothers' evaluation and monitoring for their knowledge and practices toward children with acute bronchitis are recommended in the pediatric emergency and outpatient clinics. Periodic health education for children and their mothers lead to improve their knowledge and practice regarding acute bronchitis.
Effect of Central Venous Catheter Care Bundle Implementation on Outcomes of Critically Ill Patients
Authors: Atia Gehan A. F.
Published: April 2021

Context: Central venous access device (CVAD) bundles for insertion and maintenance demonstrate a reduction in the frequency of complications and bloodstream infection when implemented with compliance monitoring, with the reported success of CVAD bundles. Aim: This study aimed to examine the effect of central venous catheter care bundle implementation on outcomes of critically ill patients. Methods: Quasi-experimental research (pre/post-test design) used to achieve the aim of this study. The study conducted at general and surgical intensive care units affiliated to Menoufia University and teaching hospital. Two study samples recruited in this study. All nurses working at the ICUs, as mentioned above, were recruited in this study. They were 6o critical care nurses. A convenient sample of all available critically ill patients at the time of the study was subjected to treatment via a central venous catheter. Four study tools used to collect the data of this study. These are a structured interview questionnaire, CVC nurses’ knowledge assessment questionnaire, nurses’ compliance assessment checklists, and patient complications assessment records.

Results: The study result showed a highly statistically significant difference between pre and post-test knowledge scores of studied nurses regarding assisting line insertion, removal, maintenance, care, and infection control practices. Besides, a highly statistically significant difference between pre and post-test scores of nurses’ compliance to central venous catheter care practices of assisting in CVC insertion, blood sample withdrawal, medication and fluid administration, CVP measurements, CVC removal, and the management of central venous line complications. The study also revealed a highly statistically significant difference between the study and control group patients regarding the central venous catheter complications. However, signs of infection were the most frequent complications in both groups.

Conclusion. The study concluded that a statistically significant difference between pre and post nurses’ knowledge and compliance with the CVC care bundle. The patients’ outcomes were also improved significantly after the implementation of the CVC care bundle compared to the controls. The study recommended the adoption of the current care bundle that should be disseminated and updated following the international organizations’ recommendation for implementing evidence-based practices for successful central line-associated bloodstream infection (CLABSI) prevention.
Job Stress and Self-Efficacy Among Nurses Working in Al-Amal Psychiatric and Addiction Hospital
Authors: Aladah Rawan A. M. , Morsi Nahed M. A. , Yousf Shadia A.
Published: April 2021

Context: Nurses act as patients' first caregivers who help them manage their physical needs, control, and treat health conditions through their early nursing interventions and critical decision-making. The critical factor for nurses that help to raise their feeling of confidence is self-efficacy. Psychiatric nurses as long as they are protected, they will become more productive, creative, and supported.

Aim: This study aimed to identify the relation between job stress and self- efficacy among nurses working in psychiatric and addiction hospital.

Methods: A descriptive-correlational design was utilized. The study was conducted at Al-Amal Psychiatric and Addiction Hospital in Jeddah, Saudi Arabia. A convenience sample of 133 nurses voluntarily participated. Data were collected by using two tools; psychiatric nurse job stress scale used to assess nurses' socio-demographic data and clinical experiences, besides, to measure psychiatry nurses' job stress. General self-efficacy scale to assess self-beliefs to cope with stressful life events and capture individuals' general beliefs about their capabilities to handle different situations.

Results: The results showed that about half of the participants (47%) have high job stress, and approximately three-quarters of participants (74.44%) have high self-efficacy. Middle-aged nurses had less job stress than young nurses. It was found that non-Saudi were experience job stress less than Saudi.

Conclusion: The analysis of the collected data revealed that there is a statistically significant negative relationship between overall job stress and self-efficacy. Nurses need to be trained in coping strategies to deal with job stress. Workshops regarding stress management, communication skills are a must for those nurses working in a psychiatric hospital. Develop training programs on self-efficacy to help nurses heighten their stress management capability and also increase their job achievements.
UPAYA MENINGKATKAN MINAT BELAJAR MATEMATIKA DENGAN MODEL PEMBELAJARAN KOOPERATIF TIPE TEAM ASSISTED INDIVIDUALIZATION (TAI)
Authors: . Sarinem , Hidayati Ika Septi
Published: April 2021

The purpose of this study was 1) to find out the application of the Team Assisted Individualization (TAI) Cooperative learning model in order to increase the learning interest of the fifth grade students of Tangkisan State Elementary School.. The results of this study indicate that: (1) In general, the application of the appropriate TAI learning model is effective in improving mathematics learning achievement, (2) Increased mathematics learning achievement of fifth grade elementary school students at Tangkisan at 61.07 in the first cycle of 75, 31 in the second cycle of 84.69
STATISTICAL REASONING TENTANG KEBIJAKAN SATU ANAK PER KELUARAG DI NEGERI TIRAI BAMBU ( CINA)
Authors: Hermawan Toto , Fajarini Nuria Mahdra , Utami Nurni
Published: April 2021

This study attempts to explain what distribution of opportunities is in accordance with population growth if a family must have sons and evaluate policies based on the data obtained. The distribution of opportunities according to population growth if a family must have sons is a geometric distribution. For n families, the binomial distribution is used to measure the success rate of the government. If the chances of having a baby boy are high, then the chances of the one-child policy will be successful. In addition, the one-child policy in China was a policy implemented during the Deng Xiaoping administration in 1979 until it was finally abolished at the end of 2015. The decision to abolish this policy is of course a very interesting matter because this policy has been implemented for more than three decades and has succeeded in driving economic growth and improving the standard of living of the Chinese people. After more than three decades of implementation, various social and economic impacts have been felt by China as a result of the one-child policy. The low fertility rate in China, the imbalance of the sex ratio, and the aging population are new problems facing China because of the implementation of this policy. Taking into account these effects, the Chinese government officially abolished the one-child policy and implemented a new policy that allows every couple in China to have two children
UPAYA MENINGKATKAN MINAT BELAJAR MATEMATIKA DENGAN METODE COOPERATIVE SCRIPT
Authors: Hidayati Ika Septi
Published: April 2021

The purpose of this study was to determine the appropriate application of the cooperative script method in order to increase the learning interest of the fifth grade students of SD Negeri Prembulan. The results of this study indicate that: (1) In general, the application of the appropriate cooperative script method is effective in increasing interest in learning mathematics, (2) Increasing interest in learning mathematics for fifth grade students of SD Prembulan in pre-cycle by 62.07 in cycle I of 76, 31 in cycle II amounted to 85.39.
ESTIMASI KURVA REGRESI SPLINE PADA DATA LONGITUDINAL DENGAN METODE KUADRAT TERKECIL
Authors: Hermawan Toto
Published: April 2021

This article examines the estimation of spline regression, especially its use in longitudinal data. Longitudinal data is data obtained based on observations made as many as n objects that are independent with each object being repeatedly observed in different time periods and between observations in the same object are dependent besides longitudinal data is data that can distinguish the diversity of responses caused by The regression curve of the spline was estimated using the least squares. It can be seen that the estimation of the spline regression curve for longitudinal data is a class of linear estimation in response observations and is highly dependent on the knots point k1,k2,...,Kn
EFEKTIFITAS PEMBELAJARAN ONLINE SELAMA PANDEMI COVID-19, METODE DAN EVALUASI
Authors: Putra Aji Permana
Published: April 2021

Learning during the pandemic is carried out online (in a network) by paying attention to the situation and conditions when the Covid-19 outbreak hit the whole world. Online learning began in 2020 to be precise in March so that up to this research it had been exactly one year. However, in its implementation, there are many discrepancies, this is indicated by several problems that occur in the field. From the research results, it was found that the online learning models that were widely used were WAG (Whatsapp Group), Google For Education (Google Form, Google Classroom, Google Drive), Youtube, Zoom Meeting. The obstacles experienced were unstable communication signals, exhausted internet quota, parents' cellphones brought to work, students accompanied by their parents working on assignments at night. Meanwhile, the advantages of online learning are flexible, complete reference sources, and adaptive to technology. Of the student activity level, only 50% are fully active in online learning, 32% are active and the remaining 28% are inactive
KERJASAMA DIREKTORAT JENDERAL IMIGRASI DENGAN UNHCR (UNITED NATIONS HIGH COMMISSIONER FOR REFUGEES)
Authors: Fernando David , Putra Razico P , Yulanda Satria
Published: April 2021

PBB membentuk suatu organisasi internasional khusus yang bertanggungjawab dalam penanganan pengungsi secara internasional. Organisasi tersebut dinamakan United Nations High Commissioner for Refugees (UNHCR). Organisasi internasional ini secara khusus menangani pengungsi, pencari suaka, orang-orang tanpa kewarganegaran, dan pengungsi internal. Tugas dari UNCHR meliputi tentang penentuan status pengungsi, relasi dengan pemerintah dan peningkatan kapasitas, kerjasama dan perlindungan berbasis komunitas, solusi komprehensif, dan mencegah keadaan tanpa kewarganegaraan. UNHCR berperan penting sebagai determinator status pengungsi dan sebagaiinisiator/fasilitator perlindungan dan bantuan terhadap para pengungsi. Selain itu dalam menangani pengungsi. UNHCR melakukan berbagai kerjasama yang strategis dengan organisasi regional/internasional lainnya seperti UNICEF, UNDP, UNWFP, WHO. UNHCR merupakan organisasi khusus PBB yang dibentuk untuk tujuan melindungi dan menjamin HAM serta upaya memanusiawikan para pengungsi internasional, sebagai akibat dari suatu peperangan ataupun konflik bersenjata yang berkepanjangan, pertikaian internal dan berbagai persoalan dalam negeri lainnya.
KERJASAMA KEIMIGRASIAN DALAM ASEAN DAN ASEM (Immigration Cooperation within ASEAN and ASEM)
Authors: Lazuardi Alfian Zana , Adityatama Deni Meidistira , Saputra Yaser Arya
Published: April 2021

Penelitian ini mencoba untuk mengamati kerjasama keimigrasian khususnya kerjasama keimigrasian dalam ASEAN dan ASEM. Tujuan dilakukan penelitian ini adalah untuk mengetahui dan memahami implementasi dan bentuk kerjasama keimigrasian dalam ASEAN dan ASEM. Digunakan metode kualitatif dalam penulisan ini, data didapat melalui studi kepustakaan kemudian dikumpulkan dan dianalisis untuk disajikan dalam bentuk deskriptif secara sistematis. Dari penelurusan data sekunder, didapat hasil salah satu bentuk kerjasama ASEAN dalam keimigrasian adalah dibentuknya kebijakan bebas visa atau ASEAN Framework Agreement on Visa Exemption, sementara pada pembahasan kerjasama keimigrasian ASEM membahas mengenai lembaga bernama The Asia-Europe Foundation (ASEF) yang berkaitan dengan keimigrasian. Dalam penerapan kerjasama keimigrasian ASEAN tersebut disatu sisi memberi banyak manfaat namun disisi lain juga tak dapat dihindari adanya kerugian dan permasalahan, sementara bentuk kerjasama keimigrasian ASEM terlihat berjalan baik karena tetap mempertahankan hak-hak para migran dalam hal keimigrasian, salah satu yang dibahas disini adalah pemberian jaminan kesehatan.