bluuebunny/crossref_metadata_2025_split huggingface dataset:
ANALISIS EFEKTIVITAS PEMBELAJARAN MATEMATIKA SECARA DARING SISWA SMP DI BANGKA BELITUNG PADA MASA PANDEMI COVID-19
Authors: Arisisari Ayen , Yopa Yopa , Karennisa Frisyeila , Farisma Siti , Pendi Pendi , Juwita Intan , Anisa Fitri 
Published: March 2022

ABSTRAK
Penelitian ini bertujuan untuk menganalisis keefektifan pembelajaran matematika secara daring (online) pada masa pandemi Virus Corona. Penelitian ini merupakan penelitian deskriptif kualitatif dengan menggunakan metode survey secara daring yang dilakukan dengan menyebarkan lembar angket secara daring kepada 32 orang responden yang merupakan siswa dari beberapa SMP di Bangka Belitung. Teknik analisis data yang digunakan terdiri dari reduksi data, tampilan data, dan gambaran kesimpulan/verifikasi. Hasil penelitian yang dilakukan menunjukkan bahwa kebanyakan siswa dari beberapa SMP di Bangka Belitung dalam pembelajaran matematika secara daring masih kurang paham, beberapa siswa merasa pembelajaran matematika secara daring ini dianggap kurang efektif, dan juga modul atau buku merupakan model pembelajaran matematika yang dianggap efektif dari kebanyakan siswa dalam pembelajaran secara daring karena siswa menggunakan gadget dalam pembelajarannya tentu memiliki kendala salah satunya yaitu mengalami jaringan internet yang lambat. Jadi proses pembelajaran matematika lebih efektif dilakukan secara tatap muka atau luring.
Kata kunci : analisis; efektivitas; daring; pandemi

ABSTRACT
This study aims to analyze the effectiveness of online mathematics learning during the Corona Virus pandemic. This research is a research qualitative descriptive using an online survey method which was conducted by distributing questionnaire sheets online to 32 respondents who were students of several junior high schools in Bangka Belitung. in online learning because students use gadgets in their learning. Data analysis techniques used consist of data reduction, data display, and drawing conclusions / verification. The results of the research conducted show that most students from several junior high schools in Bangka Belitung in online mathematics learning still do not understand, some students feel that online mathematics learning is considered ineffective, and also modules or books are considered effective mathematics learning models for most students. one of them is experiencing a slow internet network. So the process of learning mathematics is more effectively done face-to-face or offline.
Keywoards: analysis; efectivities, online, pandemic
EFEKTIVITAS PEMBELAJARAN KOOPERATIF TIPE COOPERATIVE INTEGRATED READING AND COMPOSITION (CIRC) DITINJAU DARI KEMAMPUAN KOMUNIKASI MATEMATIS
Authors: Junior Ruben Andreas , Noer Sri Hastuti , Gunowibowo Pentatito 
Published: March 2022

ABSTRAK
Penelitian ini merupakan jenis penelitian eksperimen semu yang bertujuan untuk mengetahui efektivitas model pembelajaran CIRC ditinjau dari kemampuan komunikasi matematis siswa. Populasi penelitian ini adalah seluruh siswa kelas VII SMP Tri Sukses Natar tahun pelajaran 2018/2019 yang terdistribusi dalam empat kelas. Pengambilan sampel dilakukan dengan teknik purposive sampling dan dipilih siswa pada kelas VII A dan VII C. Desain yang digunakan adalah posttest only control group design. Data penelitian diperoleh dengan menggunakan instrumen tes kemampuan komunikasi matematis siswa. Pengujian hipotesis menggunakan uji proporsi. Hasil dari penelitian ini menunjukkan bahwa peningkatan representasi matematis siswa yang mengikuti pembelajaran CIRC lebih tinggi dari peningkatan representasi matematis siswa yang mengikuti pembelajaran konvensional. Berdasarkan hasil dan pembahasan, diperoleh simpulan bahwa pembelajaran CIRC efektif terhadap kemampuan komunikasi matematis siswa.
Kata kunci: CIRC; komunikasi matematis; pembelajaran kooperatif

ABSTRACT
This research is a type of quasi-experimental research that aims aimed to find out the effectiveness of the learning model of CIRC in term of mathematical communication of students. The population of this research was students of grade VII of Junior High School Tri Sukses Natar in academic year of 2018/2019 that were distributed into four classes. The sampling was done by puposive sampling technique and it was chosen students of VII A and VII C. The design which was used in this research was the posttest only control group design. Research data were obtained through test on mathematical communication of students. The data analysis which was used was t test. The result of this research show that enhancement on mathematical communication of students who follow learning with CIRC higher than of student who follow learning with convensional. Based on the results and working through of research, the conclusion of the research is the CIRC model effective against mathematical communication of student.
Keywords: CIRC; cooperative learning; mathematical communication
ANALISIS KESALAHAN SISWA DITINJAU DARI PERBEDAAN GENDER DALAM MENYELESAIKAN SOAL ARITMATIKA SOSIAL BERDASARKAN KRITERIA WATSON
Authors: Vahlia Ira , Setiawati Ni Nyoman , Rahmatunnisa Nurida , Susanti Reni 
Published: March 2022

ABSTRAK
Penelitian ini bertujuan untuk mengetahui kesalahan peserta didik dalam menyelesaikan soal Artimatika Sosial yang ditinjau dari perbedaan gender berdasarkan kriteria Watson. Metode penelitian ini merupakan jenis penelitian kualitatif dengan menggunkan pendekatan deskriptif. Pengumpulan data pada penelitian ini dilakukan dengan pemberian soal tes dan wawancara. Subjek penelitian ini adalah 6 orang peserta didik dari Kelas VII SMP Negeri 1 Rumbia yang terdiri atas 3 orang peserta didik laki-laki dan 3 orang peserta didik perempuan dan pemilihan subjek atau sampel dilakukan dengan teknik purposive sampling. Materi yang digunakan adalah materi Aritmatika Sosial. Teknik pengumpulan data dilakukan dengan pemberian 3 soal tes uraian dan kegiatan wawancara untuk memperkuat analisa yang dilakukan oleh peneliti. Teknik analisa data yang digunakan peneliti yaitu menganalisis kesalahan menurut kategori Watson, yaitu menganalisis jawaban tes tertulis yang sudah diberikan kepada siswa kemudian membagi kesalahan-kesalahan yang dilakukan oleh peserta didik kedalam 8 tipe kesalahan.
Kata kunci: analisis kesalahan; aritmatika sosial; kriteria watson.

ABSTRACT
This study aims to find out the errors of students in solving Social Artimatics questions in terms of gender differences based on Watson's criteria. This research method is a type of qualitative research using a descriptive approach. Data collection in this study was carried out by giving test questions and interviews. The subjects of this study were 6 students from Class VII SMP Negeri 1 Rumbia which consisted of 3 male students and 3 female students and the selection of subjects or samples was carried out by purposive sampling technique. The material used is Social Arithmetic material. The data collection technique was carried out by giving 3 essay test questions and interview activities to strengthen the analysis carried out by the researcher. The data analysis technique used by the researcher is to analyze errors according to the Watson category, which is to analyze the written test answers that have been given to students and then divide the errors made by students into 8 types of errors.
Keywords: error anallysis; aritmatica social; kriteria of watson.
ANALISIS KESULITAN BELAJAR SISWA DALAM PEMBELAJARAN MATEMATIKA KELAS X PADA MATERI SPLDV DENGAN MENGGUNAKAN PENDEKATAN PMRI
Authors: Agustina Rina , Kinanti Tia , Bunganingrum Titin Tri , Rifah Trimas 
Published: March 2022

ABSTRAK
Penelitian ini bertujuan untuk membahas kesulitan belajar matematika yang dialami siswa dalam pembelajaran yang menggunakan pendekatan PMRI. Dan untuk menjelaskan jenis-jenis kesulitan yang dialami oleh siswa ketika belajar matematika, disertai dengan faktor yang menyebabkan kesulitan dalam pembelajaran matematika. Jenis penelitian ini adalah Kualitatif deskriptif. Penelitian ini berjenis kualitatif karena fokus pada satu perhatian yaitu kesulitan siswa dalam pembelajaran menggunakan pendekatan PMRI. Metode deskriptif dipakai karena penelitian ini bertujuan untuk membuat gambaran secara sistematis, dan akurat dari sampel yang diteliti. Dalam pekerjaan siswa, peneliti tidak menemukan siswa yang memeriksa kembali jawaban. Selain itu, langkah-langkah pengerjaan soal siswa bervariatif.
Kata kunci: belajar; kesulitan belajar; pembelajaran; PMRI

ABSTRACT
This study aims to discuss the difficulties in learning mathematics experienced by students in learning using the PMRI approach. And to explain the types of difficulties experienced by students when learning mathematics, accompanied by factors that cause difficulties in learning mathematics. This type of research is descriptive qualitative. This research is qualitative because it focuses on one concern, namely the difficulties of students in learning using the PMRI approach. Descriptive method is used because this study aims to make a systematic and accurate description of the sample under study. In the students' work, the researcher did not find students who checked the answers again. In addition, the steps for working on student questions are varied.
Keywords: Study; Learning Difficulties, Learning; PMRI
Relationship, difference, and diagnostic discordance between blood ionized and total calcium concentrations in client-owned chelonians
Authors: Di Girolamo Nicola 
Published: March 2022

Abstract

OBJECTIVE
To determine (1) the relationship, (2) the difference, and (3) the diagnostic discordance between blood total calcium concentration (tCa) and ionized calcium concentration (iCa) in a population of client-owned chelonian patients.

ANIMALS
161 consecutively admitted client-owned chelonians.

PROCEDURES
Results for tCa, iCa, and other variables were extracted from records. Bound calcium concentration (tCa – iCa) was calculated. General linear models were developed to evaluate factors affecting tCa, iCa and bound calcium concentrations. Diagnostic discordance between tCa and iCa was assessed.

RESULTS
iCa decreased with increasing albumin concentration, it was not influenced by sex, and it was lower in chelonians with disorders of the reproductive tract than in those with disorders of the endocrine/hemopoietic and urinary systems. Total calcium and bound calcium concentrations increased with increasing albumin concentration; they were higher in females and in chelonians with disorders of the reproductive tract. Of the 161 chelonians, 93 (57.7%; 95% CI, 49.7% to 65.5%) would have had a different diagnosis of calcium status based on tCa and iCa results (ie, diagnostic discordance). A 2.2 mmol/L cutoff value for bound calcium could differentiate chelonians with and without disorders of the reproductive tract with a sensitivity (95% CI) of 81.8% (64.5% to 93.0%) and specificity of 76.4% (68.0% to 83.5%).

CLINICAL RELEVANCE
tCa and iCa were related and were associated with albumin concentrations in chelonians. Evaluation of tCa or iCa alone is likely to result in underdiagnosis of alterations of the calcium status. Calculation of bound calcium concentration could help identify chelonians with reproductive disorders.
Frequency diverse array radar with non-uniform array spacing based on sigmoid function
Authors: Ahmad Zeeshan , Jaffri Zain ul Abidin , Bao Shu-Di , Chen Meng 
Published: March 2022

Abstract
As a widely recognized electronic beam steering concept, frequency diverse array (FDA) radar is an effective and feasible solution to provide beam scanning ability in both angle as well as range dimension as a function of time. However, the conventional FDA radar employing progressive incremental frequency offsets across the array elements generates an S-shaped and range-angle coupled beampattern. As such, the FDA beampattern can be decoupled into range-angle dimensions by employing non-linear frequency offsets or using non-uniform arrays. Frequency offsets design has been extensively researched in recent years, whereas non-uniform arrays were given little attention so far. In this paper, we propose a novel FDA radar with a unified configuration of non-uniform linear array, and non-linear frequency offsets to achieve a high-resolution dot-shaped range-angle dependent beampattern. More specifically, the non-uniform inter-element spacing is calculated using the sigmoid function, and non-linear frequency offsets are generated by logistic map, and triangular window function. Simulation results clearly demonstrate the performance advantages of the proposed FDA radar in terms of beam width and side lobe levels.
A new electrohydrodynamic printing method for patterns fabrication with low viscosity fluid of silicone oil
Authors: Tang Suzhou , Cheng E , Cheng Yu 
Published: March 2022

Abstract
Silicone oil is a type of fluid with low viscosity, but it is not easy to form stable cone jet for electrohydrodynamic printing. In this paper, we proposed a new electrohydrodynamic printing method for patterns fabrication with this kind of low viscosity fluid. Dots array was first printed on the substrate at higher direct current voltage. Then by controlling the moving speed of the platform, the dots were connected into lines according to the fluidity of the silicone oil and its low surface tension. With the proposed method, the patterns with silicone oil can be successfully formed by electrohydrodynamic printing. In the experiment, the influence of main parameters including applied voltage, moving speed of substrate, distance from needle to substrate, and axial length of droplet on the quality of printed lines was studied. Finally, by optimizing the printing parameters, the silicone oil lines with width of 73 µm and low surface roughness were printed.
Trends of Major Cereal Productivity in South Asia
Authors: Khanal Saugat , Khanal Saurav 
Published: March 2022

Abstract
The trend analysis in the time series of crop production is an important tool to make future plans and to take the appropriate decisions for sustainability in food production and future food security. The objective of this study was to assess the trend analysis of the yield of five different major kinds of cereal (paddy, maize, millet, wheat, and barley) from 1985 to 2018 in six South Asian countries (Nepal, India, Pakistan, Bhutan, Afghanistan, and Bangladesh). The average annual yields of cereals in five quadrennial drought years (1985, 1989, 1993, 1997, and 2002) were estimated. The results revealed that the yield of major cereals had an increasing trend over the study period. The reasons for the fluctuations in the production were due to the changing climates, increasing global warming, the development of new hybrids and cultivars, the adoption of new practices by the farmers, economic constraints, and agronomic constraints. For improving the production of cereal crops, the use of modern technology should be increased, and the agricultural organizations should provide full support at the country level.
Clausewitz’s Small War in the 21st Century
Authors: Kováts Levente , Takács Márk György 
Published: March 2022

Abstract
Carl Philipp Gottfried von Clausewitz is recognized as one of the most influential military theorists of all time. His ideas and theories represented in “On War” and their relevance in the 21st century are recurring debates as irregular warfare and asymmetric warfare is on the rise since World War II. While Clausewitz did not write extensively about irregular or asymmetric warfare in “On War”, he did hold lectures on as at the time was called “small war”, where he shared his views about the war on the Spanish guerilla war against Napoleon. In this study, we will examine the nature and tactics described by Clausewitz and draw a comparison regarding modern tactics.
Group Analysis as a Formal and Informal Structure at Higher Education Level
Authors: Halmaghi Elisabeta-Emilia , Rusu Maria-Lucia 
Published: March 2022

Abstract
In this article, we started from the premise that the human resource is organized in groups within universities, as in any other organization, in order to accomplish professional tasks. These groups should cooperate with the group coordinator as well as with other groups or members of the management team. The formal working groups are those through which universities meet their objectives, being officially designated to serve a specific organizational purpose, while the informal groups are formed spontaneously, in response to the common interests of the university members, helping to perform the received tasks.
Legal Considerations Regarding the Interdiction of Using Children as Spies, Guides or Couriers During Armed Conflicts
Authors: Puşcaş Paul-Augustin , Stănciulescu Cristian Sorin 
Published: March 2022

Abstract
This study performs a detailed examination of the provisions of Article 81 of Law no. 272/2004 for protection and promotion of childrenʼs rights, text of law according to which “No child shall be used a spy, guide or courier during armed conflicts”. Derived from the three fundamental human rights – the right of life, the right to physical integrity and the right to mental integrity, the legal interdiction of using children during armed conflicts as spies, guides or couriers, appears as a real instrument for protection and guarantee of minorsʼ rights, in correlation with their sheltering against the hostilities generated in conflict environments, by avoiding their use as human pawns in the theatres of operations. The lot of substantial information of the study has the vocation to transmit a firm message – to protect the children in case of war and to respect the standards of conduct in armed conflicts.
Comparative Value Relevance of Main Accounting Figures in France and the United Kingdom
Authors: Kimouche Bilal , Charchafa Ilyes 
Published: March 2022

Abstract
The value relevance of financial reports has been the preoccupation of researchers and regulators during the last three decades. Therefore, this study is an attempt to reinvestigate the comparative value relevance of the main accounting figures (equity book value, earning, and cash flow) in two prominent economic and accounting models in the world, France and the UK. Using 115 French companies and 100 UK companies over the period 2011-2019, and relying on Ohlsonʼs model, the results indicated that equity book value and earnings are value-relevant in two countries, but cash flow has no value relevance. In France, the equity book value has low-value relevance versus a high-value relevance of earnings. However, in the UK, equity book value and earnings have close levels of value relevance. Although the differences between French and UK companies in terms of relative value relevance of equity book value and earnings, they have very close common value relevance.
Minding the Gap. Psychoanalysis and the Unrepresented
Authors: Levine Howard B. 
Published: March 2022

AbstractThis paper summarizes and extends the author’s view of the need for a two-track theory of psychoanalysis, transformational as well as archeological, and its application to patients and mind states that are ‘beyond neurosis’ at the limits of analyzability. Considerations of the unstructured unconscious, the transformational movement from unrepresented to represented states, the role of intuition and construction in the completion of perceptions, memories, phantasies, desires and other drive derivatives are presented and explored.
Góp phần nghiên cứu tổng hợp một số N-(ω-azidoalkyl)isatin thế từ các isatin thế và không thế
Authors: Đình Thành Nguyễn , Minh Trí Nguyễn , Ngọc Toán Vũ , Mai Linh Hoàng , Thị Ngọc Mai Ngô , Thị Hải Yến Trần , Thị Thùy Ngô , Thị Thuý Hường Nguyễn , Thị Thúy Vân Phạm , Thị Hải Yến Trần , Thị Kim Giang Nguyễn , Thị Tuyết Anh Đặng 
Published: March 2022

Tóm tắt: Các dẫn xuất azide của isatin là các chất đầu cần thiết cho phản ứng click để tạo ra dị vòng 1,2,3-triazole. Các dẫn xuất N-(ω-bromoalkyl)isatin cần cho chuyển hoá được tổng hợp từ phản ứng thế nucleophile của các isatin tương ứng với các dibromoalkane thích hợp. Một số N-(ω-azidoalkyl)isatin có chứa nhóm thế hoặc không thế ở vòng benzene đã được tổng hợp bằng phản ứng của các N-(ω-bromoalkyl)isatin tương ứng đã tổng hợp được với natri azide. Phản ứng được thực hiện trong DMF khan với sự có mặt của KI với vai trò chất xúc tiến. Hiệu suất sản phẩm đạt được 30−85%.
Abstract: Azide derivatives of isatins were the needed initial materials for click chemistry in order to form 1,2,3-triazoles. N-(ω-Bromoalkyl)isatins were prepared by nucleophilic reaction of (un)substituted isatins with appropriate dibromoalkanes. Some ω-azidoalkylisatins were synthesized by reaction of corresponding ω-bromoalkylisatins with sodium azide. The reactions were performed in dry DMF as solvent in the presence of KI as promotive agent. Product yields achived 30−85%.
PELATIHAN PENULISAN DAN PUBLIKASI ARTIKEL ILMIAH MENGGUNAKAN DIGITAL PLATFORM PADA MASA PANDEMI
Authors: Prahmana Rully Charitas Indra , Lisnani Lisnani 
Published: March 2022

<p><strong><em>Abstract.</em></strong> <em>Writing and publishing scientific articles are essential for researchers, lecturers, and students in Indonesia. However, many of them still have difficulty writing their research results in the form of scientific articles and publishing them in reputable international journals. So, this service activity is carried out to develop academic writing and publish scientific articles skills for researchers, lecturers, and students in Indonesia. The community service activities were carried out using a digital platform, namely Zoom Meeting, during the COVID-19 pandemic. The participants involved in this activity consisted of 193 participants, consisting of researchers, lecturers, and students from various regions in Indonesia. The collecting data uses a questionnaire which was analyzed descriptively. The activity results showed an increase in the participants' academic writing and publication skills, with an average increase of 71.45% after attending this training through a digital platform. The participants gained a lot of knowledge about academic writing and scientific publications in reputable international journals.</em><em> </em><em></em></p><p> </p><p><strong>Abstrak.</strong> Keterampilan menulis dan menerbitkan artikel ilmiah sangat penting bagi para peneliti, dosen, dan mahasiswa di Indonesia. Namun, sejumlah dari mereka masih mengalami kesulitan dalam menuliskan hasil penelitian mereka dalam bentuk artikel ilmiah dan menerbitkannya pada Jurnal internasional bereputasi yang baik. Sehingga, kegiatan pengabdian ini dilakukan untuk menumbuhkan keterampilan menulis dan menerbitkan artikel ilmiah bagi para peneliti, dosen, dan mahasiswa di Indonesia. Adapun kegiatan pengabdian dilakukan menggunakan platform digital, yang bernama Zoom Meeting, pada saat masa pandemi COVID-19. Para peserta yang terlibat dalam kegiatan ini terdiri dari 193 peserta, yang terdiri dari peneliti, dosen, dan mahasiswa dari berbagai daerah di Indonesia. Pengumpulan data menggunakan kuesioner yang dianalisis secara deskriptif. Hasil pengabdian ini menunjukkan peningkatan keterampilan menulis dan publikasi para peserta dengan rata-rata peningkatan di angka 71,45%, setelah mereka mengikuti pelatihan ini melalui platform digital. Para peserta mendapatkan banyak pengetahuan tentang dunia penulisan dan publikasi ilmiah di jurnal internasional bereputasi yang baik.</p><p> </p>