bluuebunny/crossref_metadata_2025_split huggingface dataset:
STUDI TENTANG KONSEPSI (MAHA)SISWA DALAM MEMAHAMI FENOMENA PERGANTIAN SIANG DAN MALAM
Authors: Hartanto Theo Jhoni , Marcelina Susi 
Published: November 2021

Abstract. Everyone must experience regular day and night changes. The question is: how could the day and night shift occur? It is often not all people's understanding of the event is in accordance with scientific concepts. This article describes the conceptions of a number of students about the day and night turnover events. This study was carried out through pictures and explanations from each participant's interview. Participants in this study consisted of 10 high school students and 16 first year students of Physics Education Study Program, all participants lived in Palangka Raya and its surroundings. Based on the results of the study, students still have many misconceptions about day-night shifts, for example the conception of revolving Earth models, rotation models, revolving sun-moon models, and blocking models. The conceptions found in this study have similarities with the results of studies abroad in various age groups and levels of education. Keywords: day and night, conception, scientific concept Abstrak. Setiap orang pasti mengalami pergantian siang dan malam secara beraturan. Pertanyaannya: bagaimana peristiwa pergantian siang dan malam itu bisa terjadi? Seringkali tidak semua pemahaman orang-orang terhadap peristiwa tersebut sesuai dengan konsep ilmiah. Artikel ini mendeskripsikan konsepsi dari beberapa siswa dan mahasiswa tentang peristiwa pergantian siang dan malam. Studi ini dilaksanakan melalui gambar dan penjelasan dari wawancara masing-masing partisipan. Partisipan dalam studi ini terdiri dari: 10 siswa sekolah menengah dan 16 mahasiswa tahun pertama Prodi Pendidikan Fisika, seluruh partisipan tinggal di Kota Palangka Raya dan sekitarnya. Berdasarkan hasil studi, pada siswa dan mahasiswa masih banyak konsepsi-konsepsi yang salah tentang pergantian siang-malam, misalnya konsepsi revolving Earth model, rotation model, revolving sun-moon model, dan blocking model. Konsepsi-konsepsi yang ditemukan dalam studi ini memiliki kemiripan dengan hasil-hasil studi di luar negeri pada berbagai kelompok umur dan jenjang pendidikan. Kata kunci: siang dan malam, konsepsi, konsep ilmiah
KETERAMPILAN PROSES SAINS, GAYA BELAJAR, DAN HASIL BELAJAR FISIKA
Authors: Susilawati Sri Nur , Ma'ruf Ma'ruf , Yani Ahmad 
Published: November 2021

Abstract. This study is an ex-post facto research that is correlational analysis that aims to analyze the significance of the relationship between science process skills and learning styles with students' physics learning outcomes. The population in this study were students of class XI SMA Negeri 8 Gowa. The research instrument used was a science process skill test instrument, a learning style questionnaire and a physics learning achievement test. The results showed that there was a significant relationship between science process skills and learning styles with the physics learning outcomes of XI MIPA students of SMA Negeri 8 Gowa. Keywords: science process skills, learning styles, learning outcomes Abstrak. Penelitian ini merupakan penelitian ex-post facto yang bersifat analisis korelasional yang bertujuan untuk menganalisis signifikansi hubungan antara keterampilan proses sains dan gaya belajar dengan hasil belajar fisika peserta didik. Populasi dalam penelitian ini adalah peserta didik kelas XI SMA Negeri 8 Gowa. Instrumen penelitian yang digunakan adalah instrumen tes keterampilan proses sains, angket gaya belajar dan tes hasil belajar fisika. Hasil penelitian menunjukkan terdapat hubungan yang signifikan antara keterampilan proses sains dan gaya belajar dengan hasil belajar fisika peserta didik kelas XI MIPA SMA Negeri 8 Gowa. Kata Kunci: keterampilan proses sains, gaya belajar, hasil belajar
IMPLEMENTASI DISCOVERY LEARNING BERBANTUAN KIT FISIKA UNTUK MENINGKATKAN HASIL BELAJAR SISWA
Authors: Auliya Wa Ode Nur , Nurlina Nurlina , Khaeruddin Khaeruddin 
Published: November 2021

Abstract. This study aims to analyze the improvement in student learning outcomes through discovery learning. This research is a pre-experimental research using One-Group-Pretest-Posttest Design. The population in this study were all students of class X IPA of SMA Negeri 4 Makassar, which consisted of six classes. The research instrument used was a student achievement test in the form of multiple choice. The results showed an increase in learning outcomes with N-Gain of 0.42 in the moderate category. Key words: discovery learning, learning outcomes. Abstrak. Penelitian ini bertujuan untuk menganalisis peningkatan hasil belajar peserta didik melalui discovery learning. Penelitian ini merupakan penelitian pra-eksperimen dengan menggunakan One-Group-Pretest-Posttest Design. Populasi dalam penelitian ini adalah seluruh peserta didik kelas X IPA SMA Negeri 4 Makassar yang terdiri dari enam kelas.. Instrumen penelitian yang digunakan adalah tes hasil belajar peserta didik yang berbentuk pilihan ganda. Hasil penelitian menunjukkan peningkatan hasil belajar dengan N-Gain sebesar 0,42 berada pada kategori sedang. Kata kunci: discovery learning, hasil belajar.
PERSEPSI MAHASISWA BERKEBUTUHAN KHUSUS TERHADAP BLENDED LEARNING DALAM PENGAJARAN BAHASA INGGRIS
Authors: Arini Dini Noor 
Published: November 2021

Abstract. This research investigated the perceptions of disabled students in joining the blended learning of English course as an obligatory subject. The subjects of this research are 9 disable students with various disabilities who join the English class. This research uses is interview and questionnaires as instruments. From the findings it can be concluded that the disabled students or students with special need has positive perception toward blended learning. They believe that it is helpful and make them easier to learn foreign language. It is also shown that they are eager to use the blended learning despite of their special needs. It is suggested to teachers who teach disabled students to use blended learning since it helps them to be autonomous learners. Keywords: Blended learning, disable students, English course Abstrak. Penelitian ini bertujuan menginvestigasi persepsi mahasiswa berkebutuhan khusus dalam mengikuti pembelajaran inklusi mata kuliah bahasa Inggris sebagai mata kuliah wajib. Subjek penelitian ini adalah 9 mahasiswa difabel dengan berbagai kebutuhan khusus yang mengikuti kelas bahasa Inggris. Penelitian ini menggunakan wawancara dan kuesioner sebagai instrumen. Dari temuan tersebut dapat disimpulkan bahwa mahasiswa berkebutuhan khusus memiliki persepsi positif terhadap blended learning. Mereka percaya bahwa hal tersebut dapat membantu dan membuat mereka lebih mudah untuk belajar bahasa asing. Hal ini juga menunjukkan bahwa mereka ingin menggunakan blended learning meskipun mereka memliki keterbatasan dalam hal fisik. Disarankan kepada dosen yang mengajar mahasiswa berkebutuhan khusus untuk menggunakan blended learning karena dapat membantu mereka menjadi pembelajar yang mandiri. Kata kunci: Blended learning, mahasiswa berkebutuhan khusus, kursus bahasa Inggris
Serapan Nitrogen dan Fosfor serta Hasil Kedelai Edamame (Glycine max (L.) Merrill) pada Tanah Alfisol akibat Aplikasi Biochar dan Vermikompos
Authors: Rochman Allaganur , Maryanto Joko , Herliana Okti 
Published: November 2021

<p>Alfisol merupakan jenis tanah dengan kesuburan rendah, namun memiliki potensi untuk perluasan lahan bagi budidaya tanaman kedelai edamame. Aplikasi biochar dan vermikompos digunakan untuk memperbaiki nutrisi tanah dan mensuplai unsur hara pada tanah Alfisol. Penelitian bertujuan untuk mengetahui pengaruh aplikasi biochar dan vermikompos terhadap serapan nitrogen dan fosfor, serta hasil tanaman kedelai edamame (Glycine max (L.) Merrill) pada tanah Alfisol. Penelitian dilaksanakan pada bulan Agustus sampai Desember 2019 di kebun percobaan dan Laboratorium Agronomi dan Hortikultura, Fakultas Pertanian, Universitas Jenderal Soedirman. Penelitian menggunakan rancangan faktorial terdiri dari 2 faktor. Faktor I adalah aplikasi biochar, terdiri dari empat taraf yaitu B0: tanpa biochar, B1: 10 t/ha, B2: 20 t/ha, B3: 30 t/ha. Faktor II adalah aplikasi vermikompos, terdiri dari 3 taraf yaitu V0: tanpa vermikompos, V1: 10 t/ha, V2: 20 t/ha. Variabel yang diamati adalah sifat kimia tanah awal, kadar N dan P tersedia, laju pertumbuhan tanaman (LPT), laju asimilasi bersih (LAB), bobot polong segar per tanaman, jumlah polong per tanaman, serta analisis kadar N dan P jaringan tanaman. Hasil penelitian menunjukkan bahwa dosis biochar hingga 30 t/ha tidak meningkatkan serapan nitrogen, fosfor, dan hasil tanaman, sedangkan vermikompos hingga 20 t/ha meningkatkan kadar P jaringan, P tersedia, dan hasil tanaman, tetapi tidak meningkatkan kadar N jaringan, N tersedia, LPT, dan LAB. Hasil tertinggi diperoleh pada aplikasi biochar 30 t/ha dan 20 t/ha vermikompos. Tidak terdapat interaksi antara vermikompos dengan biochar terhadap pertumbuhan dan hasil tanaman, sehingga dapat diaplikasikan secara secara tunggal.</p>
Pertumbuhan dan Produktivitas Beberapa Varietas Kedelai di Bawah Tegakan Kelapa
Authors: Suwitono Bayu , Aji Himawan Bayu , Hidayat Yayat , Cahyaningrum Hermawati , Lala Fredy , Habehaan Kisey Bina 
Published: November 2021

Di Maluku Utara, perkebunan kelapa umumnya ditanam secara monokultur. Menanam kedelai di antara tegakan kelapa diharapkan dapat meningkatkan pendapatan petani dan pemanfaatan lahan. Penelitian bertujuan untuk mengetahui tingkat adaptasi beberapa varietas unggul kedelai pada sistem tanam tumpangsari di antara tegakan kelapa. Penelitian dilaksanakan di lahan perkebunan kelapa umur 10-15 tahun, jenis tanah inceptisols, Desa Bumi Restu, Kecamatan Wasile Timur, Kabupaten Halmahera Timur mulai bulan Juni hingga September 2018. Penelitian menggunakan RAK Faktorial, dengan lima ulangan. Faktor pertama adalah empat varietas kedelai (Dering 1, Demas 1, Devon 1 dan Burangrang). Faktor kedua adalah jenis pemupukan (pupuk organik, pupuk organik + pupuk NPK phonska, dan pupuk organik + pupuk NPK phonska + pupuk Urea). Hasil penelitian menunjukkan bahwa kedelai dengan populasi 80% dapat ditanam secara monokultur di bawah tegakan kelapa dengan intensitas cahaya hingga 40%. Kombinasi perlakukan varietas Dering 1 dengan pupuk organik 2 t/ha mampu menghasilkan biji 1,52 ton/ha, lebih tinggi dibandingkan varietas kedelai lainnya. Jumlah polong tertinggi dihasilkan oleh varietas Demas 1 yaitu 114 polong/tanaman. Varietas Dering 1 dan Demas 1 berpotensi untuk dikembangkan di lorong-lorong lahan perkebunan kelapa umur 10-15 tahun dengan intensitas cahaya hingga 40%. Penanaman kedelai tersebut layak untuk dikembangkan, karena petani kelapa dapat tambahan keuntungan sebesar Rp. 4.402.000/panen kedelai dengan nilai R/C 1,55.<br /><em></em><em></em><p align="justify"> </p>
Chronic deep recurrent pyoderma in the outpatient practice of the surgeon
Authors: Tarasko A. D. 
Published: November 2021

Introduction. Chronic deep pyoderma occurs relatively rare in the surgeon practice and, due to the poor knowledge of this pathology, its diagnosis is difficult by surgeons. Misdiagnosis leads to erroneous treatment tactics. Chronic deep recurrent pyoderma includes: abscessing and disrupting perifolliculitis of the head (Hoffmann) (ADPH), axillary and inguinal-perineal suppurative hydradenitis, pilonidal cyst of the sacrococcygeal area. The diseases listed follow the same pathogenesis.The purpose of the publication: to acquaint surgeons with the diagnosis and treatment of a particular type of chronic deep recurrent pyoderma – abscessing and disrupting head perifolliculitis (Hoffmann) in the conditions of the surgery room, since this problem is purely issued in the literature of the subject.Material and methods. Since 2007 until to 2020, we had observed 20 cases of deep chronic recurrent pyoderma (15 men and 5 women), but only two cases were correctly detected before treatment, in other cases – retrospectively. Research method: analyzing of clinical observation data and laboratory tests.Results. In our practice, nine men suffered from abscessing and disrupting perifolliculitis of the head. We had described and classificated the features of this disease, focused on three clinical cases.Conclusions. Abscessing and disrupting perifolliculitis of the head is still purely diagnosable and curable disease, the treatment as follows: regimen and hygienic measures, surgical treatment, conservative treatment. Surgical treatment should be as radical as possible.
Spatiotemporal pattern variations of daily precipitation concentration and their relationship with possible causes in the Yangtze River Delta, China
Authors: Mei Chao , Liu Jiahong , Huang Ze , Wang Hao , Wang Kaibo , Shao Weiwei , Li Meng 
Published: November 2021

Abstract
Understanding the spatiotemporal pattern of precipitation concentration is important in the water cycle under changing environments. In this study, the daily precipitation concentration index in the Yangtze River Delta in China is calculated based on the Lorenz curves obtained from the observed data of 36 meteorological stations from 1960 to 2017, and spatiotemporal pattern variations and their possible causes are investigated. The driving forces of elevation, SUNSPOT, El Niño-Antarctic Oscillation, Pacific Decade Oscillation, and Arctic Oscillation are detected with correlation and wavelet analysis. Results show that, the daily precipitation concentration index ranges from 0.55 to 0.62 during the study period, 22 of 36 stations (accounting for 61%) show increasing trends, while three stations increase significantly at the 95% significant level. Relationship analysis indicates that the daily precipitation concentration shows a slightly negative correlation with elevation, while the relationships with SUNSPOT, El Niño-Antarctic Oscillation, Pacific Decade Oscillation, and Arctic Oscillation are complicated and diverse, there are different correlations and significance levels in different years. Further analysis shows that SUNSPOT is significantly correlated with El Niño-Antarctic Oscillation, Pacific Decade Oscillation, and Arctic Oscillation, which suggests that SUNSPOT may be an important factor that drives the changes of the three large-scale atmosphere circulation factors and causes precipitation concentration changing indirectly. These results provide further understanding of precipitation variations, which is meaningful for regional flood risk management under climate change.
Trombose venosa profunda em pacientes com COVID-19:
Authors: Piveti Farias Camila , Moreira Alvarenga Vitor , Souza Maria Cristina Almeida de 
Published: November 2021

A doença respiratória aguda causada pelo SARS-CoV-2, identificada como COVID-19, é uma doença infecciosa que apresenta uma rápida e descontrolada propagação, sendo a causa da pandemia mundial atualmente em andamento. Esse vírus gera uma resposta desregulada progressiva, com a síntese de IL-6 e outros mediadores inflamatórios que contribui para ativar o sistema complemento e a cascata de coagulação, causando um estado de hipercoagulabilidade, que potencializa a ocorrência de trombose venosa profunda (TVP). O objetivo do presente estudo foi revisar a literatura sobre a TVP em pacientes diagnosticados com COVID-19. O presente estudo é do tipo qualitativo, retrospectivo, realizado através de uma revisão integrativa de literatura nas bases de dados eletrônicas PubMed, Science Direct e Biblioteca Virtual em Saúde, artigos publicados nos anos de 2020 e de 2021. Foram selecionados 25 artigos que atenderam aos critérios de inclusão. Foi observada uma expressiva incidência de TVP em pacientes com COVID-19, principalmente nos admitidos em unidade de terapia intensiva, do sexo masculino com comorbidades. Esse estudo demonstrou a necessidade de despertar a atenção da equipe médica sobre a TVP como sintoma clínico da COVID-19, mesmo nos pacientes que não apresentam sintomas típicos da virose.
Palavras-chave: Trombose; Profunda; COVID-19.
Role of Lipopolysaccharides in Potential Applications of Nanocarrier Systems
Authors: Shende Pravin , Gupta Shubham 
Published: November 2021

Background:
Lipopolysaccharides (LPS) are considered the main molecular component in the outer
membrane of gram-negative bacteria. The LPS molecule in the bacterial cell wall acts as a primary physical barrier
and protects gram-negative bacteria from the surrounding environment. LPS (endotoxins) show immunomodulatory
therapeutic properties as well as toxicity to the host cell, along with several potential applications.

Objective:
This review article aims to describe the recent developments of lipopolysaccharides in nanocarrier
systems for various applications such as vaccination, cancer chemotherapy, and immune stimulants action. Different
nanocarriers like cubosomes, niosomes, dendrimers, and metal nanoparticles used in the delivery of actives
are employed to decorate lipopolysaccharide molecules superficially.

Methods:
A narrative review of all the relevant papers known to the author was conducted.

Conclusion:
Commercially available lipid nanoparticles contribute to many advances as promising nanocarriers
in cancer therapy and are used as a vaccine adjuvant by improving the immune response due to their properties
such as size, shape, biocompatibility, and biodegradability. In contrast, lipopolysaccharide-decorated nanoparticles
change the host’s tolerability and increase the effectiveness of molecules in cancer immunotherapy.
These nanoconjugate systems enhance overall immunogenic response and effectiveness in vaccine immunotherapy
and targeted therapy, not only limited to human applications but also for poultry and aquaculture. Newer opportunities
include the use of lipopolysaccharides for the treatment and management of diseases with unique
characteristics like the presence of lipoprotein that acts as an alternative for bacterial infections over conventional
dosage forms.
An Update on Recent Advances for the Treatment of Cerebral Malaria
Authors: Purohit Deepika , Kumar Sahil , Dutt Rohit , Bhardwaj Tilak Raj 
Published: November 2021

:
Among all the parasitic diseases in humans, malaria is the most significant and malicious
one. The widespread species are Plasmodium falciparum and Plasmodium vivax, but the infection
caused by the former is the deadliest. According to the November 2018 report of the World Health
Organization (WHO), a total of 219 million cases of malaria were reported globally in 2017, which
led to an estimated 435,000 deaths. Mortality due to malaria is estimated at 1.5 - 2.7 million deaths each
year. Among all the complications associated with Plasmodium falciparum infection, cerebral malaria (CM)
is the most fretful, accounting for almost 13% of all malaria-related deaths. CM is a medical emergency that
requires immediate clinical testing and treatment. A compromised microcirculation, with sequestration of
parasitized erythrocytes, is central in the disease pathology. No effective therapeutic agents are
available yet for the treatment of CM, and therefore, potential interventions are needed to be
developed urgently. The currently available anti-malarial drugs lack lipophilicity and are thus
not able to reach the brain tissues. Therefore, safe, cost-effective agents with improved lipophilicity
possessing the potential to target brain tissues are needed to be searched in order to fight CM worldwide.
The aim of present review is to systematically revise the published research work available concerning
the development and evaluation of some potential drug targets in the management of CM.
The Lymphangiogenic Factor CCBE1 Promotes Angiogenesis and
Tumor Growth in Colorectal Cancer
Authors: Ding Wenjun , Tang Wenfang , Zhi Jiajun 
Published: November 2021

Background:
Collagen and calcium-binding EGF domain-1 (CCBE1) is
essential for the development of the lymphatic vasculature and colorectal cancer (CRC)
lymphangiogenesis as it enhances the proteolytic process of vascular endothelial
growth factor C (VEGFC) activating VEGFR3. The fully processed mature VEGFC
could also activate VEGFR2, the important endothelial-specific receptor tyrosine kinase,
involved in blood vascular development and tumor angiogenesis. However, the role of
CCBE1 in cancer angiogenesis remains undefined.

Methods:
In this paper, we find that the protein expression of CCBE1 is higher in the
primary CRC tissue with distant metastasis and positively correlated with blood vessel
density.

Results:
The mRNA expression of CCBE1 is closely positively correlated with the
vascular endothelial marker CD31 and VEGFR2 in CRC from TCGA datasets. The
supernatant of the colorectal cancer cell line HCT116 with CCBE1 overexpression
significantly promotes the tube formation ability of the human umbilical vein endothelial
cells (HUVECs) in vitro and enhances angiogenesis and tumor growth in vivo.
Knockdown of CCBE1 decreases the angiogenic ability of CRC.

Conclusion:
Our results demonstrate the angiogenic role of CCBE1 in CRC.
Concrete Microstructure Study on the Effect of Sisal Fiber Addition on Sugarcane Bagasse Ash Concrete
Authors: Tunje Constance , Onchiri Richard , Thuo Joseph 
Published: November 2021

Background:
Concrete made using sugarcane bagasse ash as a cement replacement is associated with a reduction in split tensile strength and therefore a need to establish the possible causes of tensile strength reduction and explore ways of mitigating that reduction.

Objective:
The aim of this study is to establish the possible causes of tensile strength reduction in sugarcane bagasse ash concrete and determine the effect of sisal fiber addition on its mechanical properties.

Methods:
Scanning Electron Microscopy was first done to analyse concrete microstructure in establishing the possible causes of tensile strength reduction in sugarcane bagasse ash concrete. Thereafter, sisal fiber addition was done by varying aspect ratios and percentages. The effect of the addition was determined on the mechanical properties of bagasse ash concrete accompanied by microstructure studies on extracted fibers and split surfaces of concrete.

Results:
Concrete microstructure studies revealed that wider cracks due to drying shrinkage and poor bonding properties of sugarcane bagasse ash are the possible causes of tensile strength reduction in bagasse ash concrete. Sisal fiber addition improved the mechanical properties of bagasse ash concrete. Microstructure studies portrayed effective bridging of cracks and good adhesive properties of the fibers.

Conclusion:
Sisal fibers can be used to improve on the mechanical properties of sugarcane bagasse ash concrete with 100 aspect ratio and 1.5% addition being the optimal combination.