bluuebunny/crossref_metadata_2025 huggingface dataset:
One for all and all for one: on the role of a conference in a scientist's life
Authors: Mryglod O.
Published: March 2023

The quantitative description of the scientific conference MECO (Middle European Cooperation in Statistical Physics) based on bibliographic records is presented in the paper. Statistics of contributions and participants, co-authorship patterns at the levels of authors and countries, typical proportions of newcomers and permanent participants as well as other characteristics of the scientific event are discussed. The results of this case study contribute to better understanding of the ways of formalization and assessment of conferences and their role in individual academic careers. To highlight the latter, the change of perspective is used: in addition to the general analysis of the conference data, an ego-centric approach is used to emphasize the role of a particular participant for the conference and, vice versa, the role of MECO in the researcher's professional life. This paper is part of the special CMP issue dedicated to the anniversary of Bertrand Berche - a well-known physicist, an active member of the community of authors and editors of the journal, long time collaborator and dear friend of the author.
Адміністративно-правове забезпечення реалізації права осіб з інвалідністю на отримання електронних послуг у сфері міграції та громадянства
Authors: Мороз В. П. , Мінка Т. П.
Published: March 2023

Розглянуто структуру та зміст адміністративно-правового забезпечення реалізації права осіб з інвалідністю на отримання електронних послуг у сфері міграції та громадянства. У статті висвітлено питання розкриття нормативно-правових актів щодо охорони прав осіб з інвалідністю. Висвітлено особливості надання електронної  послуги у сфері міграції та громадянства (наприкладі паспорту громадянина України для виїзду за кордон) для осіб з інвалідністю. Висвітлюється питання процедура, зокрема і вартість оплати, за отримання електронної  послуги у вигляді паспорту громадянина України для виїзду за кордон. Необхідно правове регулювання надання електронних послуг в сфері міграції та громадянства удосконалювати в двох основних напрямках: всі розміри плати за найбільш поширені електронні послуги мають визначатися виключно у законах, і жодним чином не у підзаконних актах; розробити та прийняти закон «Про адміністративний збір», у якому має бути уніфіковано назву плати за електронні послуги; визначити чіткі та єдині розміри адміністративних зборів для всіх видів електронних послуг. Констатовано, що держава має сприяти реалізації розумових, освітніх, професійних, фізичних здібностей осіб з інвалідністю, забезпечивши їх індивідуальну мобільність, доступність до всіх закладів і установ, зокрема щодо отримання електронних послуг у сфері міграції. Під час отримання електронної послуги у сфері міграції та громадянства  суб’єкти звернення стикаються з такими проблемами:  кількість документів необхідних для отримання певного виду електронної послуги є необґрунтованою та суперечить нормативно-правовим актам, що призводить до різного тлумачення відповідними суб’єктами публічної адміністрації, наприклад, п. 8 ст. 4 Закону України «Про адміністративні послуги» – раціональної мінімізації кількості документів та процедурних дій, що вимагаються для отримання електронної послуг тощо; відсутність інформаційного забезпечення щодо вичерпного переліку електронних послуг у сфері міграції та громадянства  та суб’єктів публічної адміністрації, які здійснюють надання цих послуг; відсутність нормативно-правової основи на рівні законів  України  щодо визначення чіткого переліку електронних послуг у сфері міграції та громадянства; неможливість подати документи в електронній формі щодо отримання електронних послуг у сфері міграції та громадянства  тощо.
Nghiên cứu thiết kế hệ thống pin mặt trời dùng cho trạm sạc và bãi đỗ xe ô tô điện
Authors: Vũ Trọng Tấn , Mai Hữu Thuấn
Published: March 2023

Khủng hoảng năng lượng trên toàn cầu hiện nay đã gây ra một hệ lụy vô cùng lớn, giá xăng, dầu tăng cao buộc chính quyền các nước cần quan tâm đặc biệt tới lĩnh vực này. Gần đây, giá xăng, dầu tại Việt Nam tăng kỷ lục trên 30.000 VNĐ/lít, buộc người dân phải thay đổi nhu cầu, thói quen đi lại của mình. Với chi phí vận hành phù hợp, xe ô tô điện (EC – Electric Car) có thể được xem như là một giải pháp hứa hẹn nhằm thay thế cho các loại xe có động cơ chạy bằng xăng, dầu. Trong nghiên cứu này, chúng tôi đã thiết kế và tính toán công suất cho trạm sạc pin mặt trời nạp ô tô điện (VFe34) và xe đạp điện (dùng cho hộ gia đình có công suất P = 9 kWp, DVốn = 179.672.000 VNĐ). Thời gian thu hồi vốn là 5,2 năm và lợi nhuận ước lượng là 34.197.878 VNĐ/năm. Đối với trạm sạc pin mặt trời cho 12 ô tô điện có vốn đầu tư thêm cho các mô hình trạm sạc độc lập, trạm sạc pin mặt trời hòa lưới có tích trữ và không có tích trữ cho thấy hiệu quả là lợi nhuận của từng mô hình. Chi phí nguyên vật liệu 759.176.000 VNĐ cho một trạm sạc pin mặt trời hòa lưới thì sau 4,1 năm đã hoàn vốn (kể từ năm thứ ba trở đi mỗi năm thu về hơn 180 triệu). Thay vì thiết kế một trạm sạc ô tô thông thường, nghiên cứu này đã đưa ra các mô hình trạm sạc thông minh tích hợp pin mặt trời nhằm chứng minh hiệu quả và mức độ ứng dụng thực tế cao.
Nghiên cứu biến dạng ống chuyên dụng dưới tác dụng của tải trọng áp suất và nhiệt độ
Authors: Lai Thanh Tuan , Uông Sỹ Quyền
Published: March 2023

Bài báo trình bày mô hình tính toán và giải bài toán phân tích trạng thái ứng suất biến dạng của ống chuyên dụng khi tính đến tác dụng đồng thời của tải trọng áp suất động và nhiệt không dừng. Mô hình này của ống phù hợp khi khảo sát hoạt động của các nòng súng pháo khi bắn ở chế độ liên thanh. Kết quả bài toán thuật phóng trong và bài toán truyền nhiệt trong thành ống là thông số đầu vào cho mô hình tính toán. Quá trình khảo sát dựa trên cơ sở phương pháp phần tử hữu hạn và được thực hiện bởi phần mềm Ansys Mechanical. Kết quả khảo sát nhận được lần lượt là các ứng suất, biến dạng của ống khi xét đến riêng tải trọng áp suất tĩnh, áp suất động, riêng tải trọng nhiệt độ không dừng và tải trọng đồng thời áp suất và nhiệt độ. Đây là căn cứ để đánh giá ảnh hưởng của các yếu tố tải trọng áp suất và nhiệt độ tới việc tính bền cho các ống chuyên dụng, đặc biệt là khi đánh giá phần miệng nòng súng pháo và đưa ra những khuyến cáo trong quá trình tính toán, thiết kế và khai thác sử dụng các trang bị vũ khí trong thực tế.
Giải pháp thiết kế bộ xoay pha số hoạt động ở băng tần C
Authors: Phương Văn Quang  , Vũ Đình Tuấn  , Nguyễn Sỹ Quyền  , Hồ Đình Linh
Published: March 2023

Trong ra đa và hệ thống tác chiến điện tử hiện đại các bộ xoay pha được áp dụng rộng rãi. Bộ xoay pha hiện nay được thiết kế ngày càng trở nên nhỏ gọn, dải xoay pha rộng, chịu đựng công suất lớn, hiệu suất cao với chi phí thấp hơn. Bài báo này trình bày giải pháp kỹ thuật và công nghệ sử dụng trong thiết kế bộ xoay pha băng C. Bộ xoay pha sử dụng nhiều diot PIN kết hợp với đường truyền stripline nhằm thu nhỏ kích thước tổng thể mà vẫn đảm bảo bước nhảy pha chính xác theo yêu cầu thiết kế.
Điều chỉnh bám quỹ đạo cho robot tự hành bốn bánh lái chủ động 4WD4WS bằng vật chuẩn
Authors: Đặng Nam Kiên  , Nguyễn Vũ  , Nguyễn Thành Trung
Published: March 2023

Bài báo trình bày phương pháp ứng dụng thuật toán ngắm theo điểm đích ảo để điều khiển robot tự hành bốn bánh lái chủ động 4WD4WS bám theo đường quỹ đạo, dựa trên thông tin cung cấp về vị trí thực tế của robot bằng các vật chuẩn dọc theo quỹ đạo. Động học của robot tự hành bốn bánh lái chủ động cũng được nghiên cứu chi tiết, đảm bảo được tính ổn định của hệ thống khi vận hành với các ràng buộc vận tốc và hướng cho từng bánh xe. Quá trình tổng hợp luật điều khiển được bảo đảm toán học chặt chẽ. Mô phỏng trong Matlab thể hiện trực quan kết quả nghiên cứu.
Nghiên cứu ảnh hưởng của phụ gia đến tính chất chống cháy của sơn chống cháy kiểu trương nở nhằm bảo vệ cho vật liệu thép
Authors: Đỗ Đăng Trung
Published: March 2023

Trong bài báo này, chúng tôi sẽ trình bày kết quả nghiên cứu về ảnh hưởng của phụ gia Al(OH)3 và nanoclay lên tính chất của sơn chống cháy kiểu trương nở trên cơ sở nhựa epoxy. Tính chất của sơn chống cháy được khảo sát bằng kính hiển vi điện tử quét (SEM), phổ hồng ngoại biến đổi Fourier (FTIR), phổ tán xạ năng lượng tia X (EDS), phân tích nhiệt trọng lượng (TGA). Kết quả nghiên cứu chỉ ra rằng, mẫu sơn có bổ sung 5% Al(OH)3 làm giảm nhiệt độ mặt sau của tấm thép là 98oC so với mẫu sơn chống cháy không có phụ gia. Ngoài ra, độ trương nở và hàm lượng tro (than) của mẫu sơn chống cháy khi trộn thêm 5% Al(OH)3 sau khi đốt lần lượt là 21 lần và 17,42% được cải thiện đáng kể so với mẫu không có phụ gia có giá trị tương ứng là 10 lần và 12,61%. Như vậy, Al(OH)3 là phụ gia thích hợp được sử dụng để cải thiện tính chất của sơn chống cháy nhằm bảo vệ cho vật liệu thép dưới tác động của đám cháy.
Phân lập và xác định cấu trúc các hợp chất phenolic trong phần chiết nước từ cây Cỏ lào đỏ
Authors: Tô Linh , Vũ Ngọc Toán  , Đồng Ngọc Phúc  , Trần Xuân Trúc  , Vũ Minh Trang  , Trần Thị Thu Thủy  , Phan Minh Giang
Published: March 2023

Hiện nay, đặc trưng thành phần các hợp chất từ thực vật là cơ sở cho việc đánh giá hoạt tính sinh học và ảnh hưởng sinh thái học của thực vật lên môi trường và các loài sinh vật khác. Phân tách sắc ký và phân tích cấu trúc bằng phổ NMR được sử dụng trong bài báo này để nghiên cứu sự xuất hiện của sáu hợp chất phenolic trong phân đoạn nước từ lá Eupatorium adenophorum Spreng. Cấu trúc của các hợp chất được xác định là 4-hydroxybenzoic acid, methyl 3,4-dihydroxybenzoate, isovanillic acid, 5-O-glucopyranosylthymoquinol, 2-O-b-D-glucopyranosylcinnamic acid và quercetagetin 7-O-b-D-glucopyranoside.
Tính chất nhiệt phát quang của vật liệu CaF2 đồng pha tạp ion Er3+, Li+
Authors: Vũ Hà , Đỗ Thư , Đoàn Anh , Nguyễn Thành
Published: March 2023

Vật liệu CaF2 pha tạp Er3+ và Li+ được chế tạo bằng phương pháp kết tủa trong dung dịch. Cấu trúc, hình thái và thành phần của vật liệu được khảo sát thông qua phổ nhiễu xạ tia X (XRD), chụp ảnh hiển vi điện tử (SEM) và phổ tán xạ năng lượng (EDS).Tính chất nhiệt phát quang của vật liệu đã được nghiên cứu; kết quả cho thấy nồng độ ion Li+ có ảnh hưởng đến cường độ nhiệt phát quang của vật liệu. Các thông số động học của bẫy tương ứng với đỉnh chính đã được xác định bằng cách sử dụng phần mềm TLAnal phân tích đường cong thực nghiệm.
Effect of Soil Moisture and Distance of Scraper in Field Performance of Disk Plow
Authors: Al-Jarrah Mothana Abed Al-Malik Noori , Aljuboori Husain Abed Hamood , Al-Jawadi Rafea Abdulsattar M.
Published: March 2023

Soil tillage is a critical process in agricultural production. Furthermore, the process consumes a lot of energy and time to complete the soil tillage practices. A disk plow with triple disks was tested in one of the Agriculture and Forestry college plantations at the University of Mosul during season 2013. The research included two soil moisture contents (10.7 and 16.2%), and three distances between the inner disk face and the scraper (2, 4, and 6 cm). Besides, two forward speeds for the tractor (2.29 and 5.85 km/h) were used. The disk plow test was adopted to evaluate the energy consumed, the specific energy, the volume of soil pulverized, and the soil adhesion on the disks. The test also evaluated the ratio of soil overturn, the lateral soil transfer, and the number of soil clods bigger than 10 cm/m2. The data were analyzed with the statistic randomized complete block design (RCBD) using the split-split plots system. The results indicated significant differences with the factor level of soil moisture 10.7% with the first scraper position of 2 cm, and forward speed of 5.85 km/h, and for the traits of soil adhesion and lateral soil transfer, which were 0.11 N/m2 and 170.33 cm, respectively. On the other hand, there were no statistical significant differences in the traits of energy consumed, specific energy, volume of soil pulverized, soil overturn, and number of soil clods bigger than 10 cm/m2. The consumed energy, specific energy, and number of soil clods decreased, while the volume of pulverized soils and soil overturn ratio increased, at soil moisture 16.2% with the same levels of treatment.
A Novel Method Using Two-stage Anaerobic Digestion Integrated with Greenhouse Solar Dryer for Increased Biogas Production
Authors: Sudsuansee Thaithat , Khanthirat Wanrop , Lawong Amin , Sergsiri Supakit
Published: March 2023

Solar energy is infinite and environmental-friendly energy that is widely used in many fields such as solar cells, solar roofs, solar dryers and so on. However, solar energy has never been used in anaerobic digestion processes for biogas production. The use of solar energy may accelerate the biogas reaction to achieve higher gas production rates. Hence, the purpose of this research was to study a two-stage anaerobic digestion system in combination with a greenhouse solar dryer to increase the rate of biogas production. The study consisted of two parts: the first was to study the temperature variations in greenhouse solar dryers using computational fluid dynamic techniques, and the second was to conduct two-stage anaerobic digestion integrated with the greenhouse solar dryer system for biogas production. The results showed that the average temperature and biogas production rate in the integrated two-stage anaerobic digestion system compared to a conventional system increased by 16.2% and 19.69 %, respectively
Estudio de la innovación y competitividad empresarial en pequeñas empresas
Authors: Hernández Noé Chávez , Ávila Beatriz Sauza
Published: March 2023

La innovación es un factor importante para desarrollar una transformación en los procesos, estructura y productos de las organizaciones con la finalidad de buscar la sostenibilidad competitiva en el entorno actual. En ese sentido, los objetivos de este trabajo consistieron en identificar los niveles de ejecución de actividades de innovación y, los niveles de aplicación de estrategias para lograr la competitividad en las empresas; así como, evaluar la relación entre innovación y competitividad empresarial manifestada en las actividades realizadas por pequeñas empresas. Para tales propósitos, se realizó un estudio de alcance descriptivo y correlacional de corte transversal, no experimental con un instrumento de 15 ítems a 273 pequeños empresarios de la zona centro de México. Empíricamente, se evidenciaron bajos niveles de ejecución de actividades de innovación y estrategias que encaminen a la competitividad. También, se confirmó una correlación positiva significativamente moderada entre los elementos que distinguen ambos factores. Se concluyó que, el nivel de relación moderado puede deducir que los pequeños empresarios necesitan desarrollar más las estrategias competitivas y de innovación, donde la creación y promoción de una cultura de innovación, contribuya a fortalecer las capacidades para encarar las situaciones actuales de incertidumbre e inestabilidad en el entorno.
IMPACT OF PACKAGING ON CONSUMER BUYING BEHAVIOUR
Authors: SHAH KRITIKA
Published: March 2023

Packaging of a product has many functions including containment, protection, convenience and communication. Product packaging servers to consolidate of unit loadsof shipping, to protect the product inside during the period of shipping, to convey necessary information. Other than these functions packaging is also used in marketing activities. The labels on the product can be used to encourage potential buyers to purchase the product. Companies use attractive colors, logos, symbols and captions to promote that can influence purchase decision. According to Rundh (2005) package attracts consumer’s attention to brand, enhances itsimage, and influences consumer’s perceptions about product. Also, package imparts unique value to products. In this competitive environment packaging has become an effective tool to capture theconsumers purchase intention. Packaging perform the important role for attracting thecustomers. We can see the buying intentions of children. The design of the wrapper attracts the children, so organisations’ design the wrapper in such a way that it is attractive to their eye.
Experimental Investigation on the performance and emission characteristics of Jatropha oil blended waste plastic oil in a CRDI Engine
Authors: Ganapathi Dr.P
Published: March 2023

This paper describes an experimental study of using jatropha oil as a fuel in CRDI diesel engine. In this study the effect of using Jatropha oil – plastic oil blends (JP10 JP20) on the engine performance, exhaust emission have been experimentally investigated. This present work deals with 10% Jatropha oil and 90% waste plastic oil called JP10, 20% Jatropha oil and 80% waste plastic oil called JP20 were used in single cylinder four stroke, water cooled CRDI diesel engine. The experimental result showed that the carbon monoxide, hydrocarbons and exhaust gas temperature were significantly reduced. Oxides of nitrogen, Brake specific fuel consumption was increased and also brake thermal efficiency were found to have increased with Jatropha oil – waste plastic oil blends. Keywords: Diesel, jatropha, Plastic oil, Engine Performance, Emission.
Manajemen Psoriasis Pustulosa
Authors: Yefta  , Winarni Dwi Retno Adi , Wirohadidjojo Yohanes Widodo
Published: March 2023

Psoriasis merupakan penyakit radang kulit kronis dengan dasar genetik yang kuat. Berdasarkan tipenya, psoriasis dibagi menjadi psoriasis plak (psoriasis vulgaris), psoriasis gutata, psoriasis pustulosa generalisata/lokalisata, psoriasis inversa, dan eritroderma psoriatika. Manajemen psoriasis pustulosa mempertimbangkan tingkat keparahan penyakit. Acitretin, cyclosporine, methotrexate, dan infliximab merupakan terapi lini pertama untuk psoriasis pustular generalisata. Adalimumab, etanercept, dan psoralen plus ultraviolet A (PUVA) adalah modalitas lini kedua. Berbagai modalitas terapi lain yang sedang dikembangkan adalah agen biologis dan terapi berdasar sel punca. Manajemen psoriasis pustulosa dapat menggunakan berbagai modalitas dengan memperhatikan kondisi pasien dan keterjangkauan terapi

 

Psoriasis is a chronic skin inflammation with a strong genetic basis. Based on its type, psoriasis is divided into plaque psoriasis (psoriasis vulgaris), guttate psoriasis, generalized/localized pustular psoriasis, inverse psoriasis, and psoriatic erythroderma. The management of pustular psoriasis depends on the disease severity. Acitretin, cyclosporine, methotrexate, and infliximab are first-line therapies for generalized pustular psoriasis. Adalimumab, etanercept, and psoralen plus ultraviolet A (PUVA) are second-line modalities. Other therapeutic modalities being developed are biologic agents and stem cell-based therapies. Management of pustular psoriasis can use various modalities, depending on the patient’s condition and its affordability
Non-ST Elevation Acute Coronary Syndrome (NSTEACS) as Hypertension-Mediated Organ Damage (HMOD) in Hypertensive Emergencies
Authors: Puspaseruni Karina , Da Rizka Edmond , Sakulat Wisnu
Published: March 2023

Hypertensive emergencies are characterized by severe increases in blood pressure with evidence of hypertension-mediated organ damage (HMOD) and are associated with an increased risk of cardiovascular events, i.e. coronary heart disease (CHD) and mortality. Case: A 75-year-old man with typical chest pain with nausea and vomiting 1 hour before admission. Blood pressure was 200/100 mmHg, ECG showed T inversion in leads II, III, AVF, V1-V6 and prolonged QT interval, cardiomegaly on chest x-ray, and leukocytosis, hyperglycemia, and hypokalemia. The diagnoses were non-ST elevation acute coronary syndrome (NSTE-ACS), hypertensive emergency, and T2DM. Treatment in the ICCU consists of intravenous antihypertensive, antiplatelet, anticoagulant, statin, nitrate, insulin, and potassium chloride for electrolyte correction. The patient was admitted to the ICCU for further observation and management.

Hipertensi emergensi ditandai dengan kenaikan tekanan darah yang sangat disertai bukti kerusakan organ yang progresif (hypertension-mediated organ damage - HMOD). Keadaan ini berkaitan dengan peningkatan risiko kejadian penyakit kardiovaskular, seperti penyakit jantung koroner bahkan kematian. Kasus: Seorang laki-laki usia 75 tahun dengan nyeri dada tipikal sejak 1 jam sebelum datang ke rumah sakit disertai mual dan muntah. Tekanan darah 200/100 mmHg, pada EKG didapatkan inversi T pada lead II, III, AVF, V1-V6, dan pemanjangan interval QT. Pada pemeriksaan X-ray dada didapatkan kardiomegali, hasil laboratorium menunjukkan leukositosis, hiperglikemi, dan hipokalemi. Pasien didiagnosis non-ST elevation acute coronary syndrome (NSTE-ACS), hipertensi emergensi, dan diabetes melitus tipe 2. Tata laksana di ICCU menggunakan anti-hipertensi intravena, anti-platelet, anti-koagulan, statin, nitrat, insulin, dan kalium klorida untuk koreksi elektrolit. Pasien dirawat di ICCU untuk observasi dan tata laksana lebih lanjut.
Perikardiosentesis Ekokardiografi pada Tamponade Jantung dan Suspek Hipertensi Pulmonal: Langkah-Langkah Prosedur dan Komplikasinya
Authors: Kartawan Gabrielle Alexander , Diartoputro Achmad Yusri Rachmani
Published: March 2023

Tamponade jantung merupakan kondisi emergensi yang disebabkan oleh peningkatan tekanan intraperikardium karena akumulasi cairan pericardium, sehingga terjadi kompresi ruang-ruang jantung, mengakibatkan curah jantung menurun. Terapi definitif tamponade jantung adalah perikardiosentesis, dapat dilakukan dengan bantuan ekokardiografi. Keberhasilan perikardiosentesis ekokardiografi mencapai >95%, namun juga memiliki risiko tinggi hingga beberapa komplikasi. Kasus seorang perempuan 17 tahun dengan SLE dan tamponade jantung datang dengan instabilitas hemodinamik. Perikardiosentesis ekokardiografi berhasil dilakukan. Laporan ini disertai langkah-langkah prosedur perikardiosentesis ekokardiografi dan pembahasan komorbiditas hipertensi pulmonal dan komplikasinya.

Cardiac tamponade is an emergency condition caused by intrapericardial pressure increase due to pericardial fluid accumulationresulting in compressed cardiac chambers and reduced cardiac output. Definitive therapy is pericardiocentesis, which could be done with the guidance of echocardiography. Echocardiography-guided pericardiocentesis procedure has a>95% success rate, but it carries some potential high risks and several complications. The case is a 17-year-old SLE female patient presenting with cardiac tamponade and hemodynamic instability. Echocardiography-guided pericardiocentesis was successfully done. This case report is supplemented by a step-by-step procedure and discussion on possible pulmonary hypertension comorbidities and their complications.
Psicoativos e sucesso escolar nos estudantes do ensino superior: uma análise em tempos de Pandemia Covid-19
Authors: Taboada Costa Xavier , Pimentel Maria Helena , Díez Liébana María José
Published: March 2023

Resumo Enquadramento: na população estudantil do ensino superior, muitos comportamentos podem afetar o sucesso escolar. Objetivo: analisar a associação entre o consumo dos principais psicoativos e o sucesso escolar dos estudantes do ensino superior. Metodologia: estudo transversal, descritivo, quantitativo e analítico. Questionário online aplicado aos alunos do Instituto Politécnico de Bragança (IPB), Portugal, após o primeiro semestre letivo de 2020/2021. Amostra de 825 alunos estratificada por escola, com base numa população de 8875 alunos matriculados. Resultados: evidenciou-se relação estatisticamente significativa entre quem consome medicamentos psicoativos e/ou drogas recreativas com o menor rendimento escolar. Verificou-se que as práticas abusivas de binge drinking/smoking e a que a combinação com um terceiro psicoativo também estão associados a menor desempenho académico. Com a pandemia Covid-19 os estudantes percecionaram aumento de consumos dos principais psicoativos e diminuição do sucesso escolar. Conclusão: o consumo abusivo de psicoativos causa insucesso escolar e a pandemia COVID-19 agravou ambos problemas. Palavras-chave: psicoativos, sucesso escolar, ensino superior, covid-19 Abstract Background: Many behaviours can affect school achievement in the higher education student population. Objective: To analyse the association between the consumption of the main psychoactive substances and the school achievement of higher education students. Methodology: A cross-sectional, descriptive, quantitative, and analytical study. The questionnaire was applied to the students at the Polytechnic Institute of Bragança (IPB), Portugal, after the first semester of 2020/2021. The sample comprised 825 students, stratified by school, based on a population of 8,875 enrolled students. Results: A statistically significant relationship was found between those who consume psychoactive medicines and/or recreational drugs with the lowest school performance. Abusive binge drinking/smoking practices and the combination with a third psychoactive substance were also found to be associated with lower academic performance. With the COVID-19 pandemic, students perceived increased consumption of the main psychoactive substances and decreased school achievement. Conclusion: abusive consumption of psychoactive substances causes school failure, and the COVID-19 pandemic has further aggravated these problems. Keywords: psychoactive substances, school achievement, higher education, covid-19
Seed Germination and Seedling Emergence of Lysimachia mauritiana Lam. (Primulaceae)
Authors: Marui Yuki , Takizawa Eiichi , Shiba Masayuki , Yoshizaki Shin , Fukuda Tatsuya
Published: March 2023

Lysimachia mauritiana Lam. (Primulaceae), a biennial maritime plant, is widely distributed in East Asia, the Philippines, Micronesia, Polynesia, and the Indian Ocean. Because of this species’ wide distribution in Japan, we hypothesized that it could germinate and grow even in the bare coastal areas damaged by the tsunami caused by the Great East Japan Earthquake. Thus, we aimed to evaluate the seed germination of L. mauritiana under different sowing depths, temperatures, and salinity soil conditions. The highest germination rate was obtained by sowing L. mauritiana seeds near the soil surface, with germination rate decreasing as the seeding depth increased. Lysimachia mauritiana germinated even at relatively low temperatures. Moreover, we found that L. mauritiana seeds could germinate in less than 1% salt water and in salt-accumulated soil, using soil soaked in 5% or 10% salt water. Our results therefore suggest that L. mauritiana seeds could germinate by sowing on the bare soil surfaces damaged by the tsunami.
Aeroradiometric measurements in the framework of the Swiss Exercise ARM22
Authors: Butterweck Gernot , Stabilini Alberto , Bucher Benno , Breitenmoser David , Rybach Ladislaus , Poretti Cristina , Maillard Stéphane , Hess Adrian , Kasprzak Malgorzata , Scharding Gerald , Mayer Sabine
Published: March 2023

The flights of the civil (ARM22c) and military (ARM22m) parts of the exercise were performed between June 13th and 17th and between September 5th and September 9th, respectively. Both parts of the exercise included the measurement of altitude profiles. Two profiles were measured during ARM22c over Lake Thun and one profile during ARM22m over Lake Neuchâtel with sufficient altitude range to determine the slope of the altitude-dependent cosmic correction. The altitude profile over Lake Neuchâtel showed a clear deviation from the expected profile, suggesting a massive influence of airborne radon progeny on the result. According to the alternating schedule of the annual ARM exercises, the environs of the nuclear power plants Beznau (KKB) and Leibstadt (KKL), the Paul Scherrer Institute (PSI) and the intermediate storage facility (ZWILAG) were surveyed with an extension of the measuring area into German territory, following a request of German authorities. The site of the former Lucens reactor was measured and found unobtrusive in the measured data. Background flights were performed over several Swiss cities, regions and valleys. Besides attenuation effects of water bodies, variations of natural radionuclide content could be observed. Remains of the Chernobyl deposition were detected near the French border and in southern Switzerland.
Walk on the Hypercube with Minimum Similarities
Authors: Georgiev Georgi , Yanev Nicola , Kelevedjiev Emil , Yurukov Borislav
Published: March 2023

An efficient scheduler (algorithm) as a part of batch processing, implemented in a real warehouse management system is considered. The goal is not completion time but rather the fairness of the schedule expressed as a minimal overload of working places (machines, workers, etc.) used. As a combinatorial optimization problem, the objective is to find the permutation of the rows of a n x k boolean matrix B that minimizes the sum of the scalar products of each two consecutive rows. For the above-mentioned warehouse, the size n of a batch is in thousands and the number of working places is up to ten.

The problem is modeled as many visits traveling salesman problem over the vertices of k dimensional unit hypercube with distances equal to the scalar products of the coordinate vectors of the vertices.

The case n= 2^k is proven NP-hard and for the needs of the practice, where n >> k a heuristic greedy algorithm with a good, experimentally proven precision is proposed.
Comparación de resoluciones algebraicas con y sin tablas de problemas de edades
Authors: Soneira Calvo Carlos
Published: March 2023

En el contexto de la resolución algebraica de problemas de edades, este trabajo estudia las similitudes y diferencias en la construcción del modelo de problema, los errores en las ecuaciones y los procesos subyacentes a estos, dependiendo de si se usan o no tablas. Mediante técnicas de interpretación cualitativa se analizó el discurso, los gestos y las producciones escritas de ocho pares de estudiantes de secundaria. Se obtuvo que cuando usaron tablas construyeron siempre un modelo de problema, mientras que cuando no en ocasiones usaron una estrategia sintáctica. Los errores en las ecuaciones fueron análogos en ambas formas de resolución –con y sin tablas– y la traducción fragmentada del lenguaje natural al algebraico fue un proceso subyacente a ellos en ambas formas.
Integración de la ingeniería en la educación científico-tecnológica desde un prisma CTS
Authors: García-Carmona Antonio
Published: March 2023

Presentamos un análisis crítico sobre la integración de la ingeniería en propuestas curriculares del ámbito científico-tecnológico, auspiciada por el movimiento educativo STEM. Para ello, revisamos las principales perspectivas y planteamientos que se están haciendo al respecto. A continuación, analizamos qué novedad supone introducir explícitamente la ingeniería en el tradicional currículo de tecnología en España. Luego, examinamos bibliografía relevante sobre el tema para determinar qué relaciones podrían establecerse entre la tecnología y la ingeniería. Finalmente, hacemos una propuesta de conceptualización de estas dos disciplinas, incluyendo sus relaciones con la ciencia, que sintoniza con el marco de la educación CTS, y que puede servir de referente en diseños didácticos de integración curricular para el ámbito científico-tecnológico.
Multimodalidad y regulación metacognitiva en el aprendizaje de la evolución
Authors: Pérez Gastón , Gómez Galindo Alma Adrianna , González Galli Leonardo Martin
Published: March 2023

El aprendizaje de la evolución presenta múltiples dificultades, entre ellas ciertos modos de razonar u obstáculos epistemológicos. Estos obstáculos no son eliminables, por lo que se espera desarrollar en los estudiantes la habilidad de regularlos metacognitivamente al momento de aprender o utilizar un modelo científico. En este trabajo se analiza la relación entre dicha regulación y los diferentes modos de representar que pueden utilizarse en una clase de biología. A partir de un análisis multimodal, se examinaron las regulaciones que llevaron adelante estudiantes de Educación Secundaria Obligatoria en el marco de una secuencia didáctica para aprender evolución. Encontramos que modos de representar como la oralidad, los dibujos o los esquemas conceptuales poseen diferentes potencialidades para ayudar a la regulación metacognitiva de los obstáculos epistemológicos.
Emociones y adquisición de conocimiento sobre la luz y los colores mediante un aprendizaje basado en proyectos en educación primaria
Authors: Arana-Cuenca Ainhoa , Romero-García Carmen , Pérez Andrés Sonia , Marcilla García Elena
Published: March 2023

El objetivo de este trabajo ha sido analizar el efecto de un aprendizaje basado en proyectos, utilizando el método científico, en la enseñanza de los contenidos sobre la luz y los colores y las emociones experimentadas por el alumnado. En la experiencia participaron 32 alumnos de 5.º y 6.º de educación primaria. Se utilizó una metodología cuantitativa, con un diseño preexperimental pretest y postest. Los resultados muestran que hubo un efecto alto al aumentar los conocimientos adquiridos por los estudiantes tras la implementación de la propuesta. La actividad se ha valorado de forma muy positiva, especialmente en las dimensiones de interacción-colaboración y aprendizaje. Además, ha generado emociones positivas con un efecto alto sin modificación de las emociones negativas. Dichos resultados no se vieron influidos por el sexo o el curso al que pertenecían los estudiantes.
PENERAPAN METODE ROLE PLAYING DALAM MENINGKATKAN HASIL BELAJAR BAHASA INDONESIA SISWA KELAS IV SDN 12 SINDUE
Authors: Solihin Iramadhana
Published: March 2023

This study aims to improve the results of learning Indonesian using the role playing method for fourth grade students at SDN 12 Sindue, Donggala Regency. In the Indonesian subject, grade IV students have not been able to achieve the KKM that has been determined by the teacher. This type of research is classroom action research in collaboration with class IV teachers at SDN 12 Sindue. The subjects in this study were teachers and fourth grade students at SDN 12 Sindue, totaling 23 students. The data collection technique in this study was through evaluation tests and observations during the learning process. Data analysis in this study used descriptive qualitative and quantitative observation sheets to describe the results of the scores obtained by students. The results of the study show that learning Indonesian by applying role playing learning can improve the learning outcomes of fourth grade students at SDN 12 Sindue, Donggala Regency. An increase in student learning outcomes occurred after carrying out the role playing method, namely students playing roles with their group mates on message material over the phone to understand Indonesian language lessons. Indonesian language learning outcomes increased from cycle 1 to cycle 2. The percentage of completeness of student learning outcomes increased from 69.57% to 82.61%. Students who don't participate in groups are approached by the teacher and directed to ask their friends so that all students can understand the material and can play their roles well. It can be concluded that the use of the role playing method can improve the learning outcomes of Indonesian in grade IV elementary school students.
THE IMPACT OF USING GADGETS ON EARLY CHILDHOOD IN SIDAMUKTI VILLAGE
Authors: Mustakim Usep Saepul , Muliasari Ajeng , Sumarni Nunung , Mardiah Diah , Fatimah Hana
Published: March 2023

The formulation of the problem in this study is how to analyze the impact of using gadgets in early childhood. The research objectives to be achieved in this study are readers can use gadgets wisely, readers can reduce dependence on gadgets, to provide information about the impact of using gadgets on health and to provide information about gadgets. The research method used is a qualitative research method. Based on the results of research on the negative and positive impacts of using gadgets on children aged 6-12 years in Sidamukti Village, it can be concluded: 1). The positive impact of using gadgets on respondents is 5 children aged 6-12 years in Sidamukti Village, showing data for 2 children who show a positive impact, this is classified as a minority because the other 3 respondents have not shown a positive impact. 2). The negative impact of using gadgets on respondents was 5 children aged 6-12 years in Sidamukti Village, showing data for 3 children showing a negative impact, this is classified as the majority because 2 other respondents have shown a positive impact.
PENINGKATAN KEMAMPUAN GURU KELAS RENDAH DALAM MENGELOLA PROSES PEMBELAJARAN MELALUI SUPERVISI KLINIS MASA PANDEMI COVID-19
Authors: Mulyadi Muhammad
Published: March 2023

This research was school action research (SAR) that raises how low-grade teachers can manage the learning process in classroom with the intention of improving the quality of learning that conducted in the classroom and the evaluation is carried out through clinical supervision activities by principle in the classroom during learning. This school action research was conducted at SD Negeri 1 Teros for 3 months starting from January to march 2022 by going through stages of the cycle. The aim of this school action research was to know how far the supervision that conducted by the principle followed by giving the coaching/treatment to teachers can improve the skill of the teachers to manage the learning process in the classroom. This school action research was conducted in 2 cycles, from the result of the action taken was proven can improve the skill of the teachers with achieve the ideal standard. In cycle I, the improving of teachers’ skill after conducted the clinical supervision and after giving the coaching about managing the learning process was just achieve about 50%, in cycle II it was improved to 100%. The average score obtained after conducted the clinical supervision in cycle I is 74.16 and improved at cycle II to 85.83, it means that there is an improvement of 11.76 and the level of completeness as group/classical in cycle I reached 50% and in cycle II improved to 100%. The result of this school action research showed that the coaching by principle can improve the skill of the teachers in managing the learning process in learning process.
PENINGKATAN KOMPETENSI GURU MELALUI SUPERVISI BERKELANJUTAN MASA PANDEMI COVID 19 DI SEKOLAH DASAR NEGERI 3 WAKAN KECAMATAN JEROWARU SEMESTER GANJIL TAHUN PELAJARAN 2021/2022
Authors: Muttaqin Zaenal
Published: March 2023

The research conducted was school action research (SAR) which raises questions about how teachers can use existing learning media in the learning process in the classroom with the intention of increasing the quality of learning conducted in class and the evaluation was carried out through supervising activities of the principal in class when learning. This school action research activity was carried out at SDN 3 Wakan for 3 months, from October to December 2021 by going through cycle stages. The purpose of this school action research (SAR) is to find out to what extent the supervision carried out by the school principal followed by the provision of guidance/treatment of target teachers can improve the teacher's ability to apply learning models in class. This school action research (SAR) was carried out in 2 cycles, the results of the actions taken proved to be able to improve teacher abilities by achieving ideal standards. In the first cycle of improving the ability of teachers after conducting class supervision after coaching on the use of new learning media reached around 33.33% in cycle II it could increase to 100%. The average score obtained after class supervision in cycle I was 63.30 and increased in cycle II to 83.33, meaning that there was an increase of 20.03 and the level of completeness as a group/classical in cycle I reached 33.33% and in cycle II increased to 100%. The results of this school action research show that school principal coaching can improve teachers' ability to use instructional media in the learning process.
ANALISIS PEMANFAATAN SCREENCAST O MATIC DALAM PEMBERDAYAAN KETERAMPILAN KOMUNIKASI LISAN MAHASISWA PENDIDIKAN BIOLOGI UNIVERSITAS TIMOR
Authors: Sele Yunawati , Oetpah Fincensius
Published: March 2023

This research was conducted with the aim of obtaining an overview of the use of Screencast O Matic in empowering oral communication skills of students of the Biology Education study program, University of Timor. This research is quantitative descriptive. The research subjects were students of the Biology Education Study Program at the University of Timor who programmed the Teaching and Learning course. The instrument used is an open questionnaire containing five questions. The collected data were analyzed using descriptive statistics. The results showed that empowering the oral communication skills of students of the Biology Education study program at the University of Timor could not be carried out optimally. The reason is the low readiness and awareness of students to take part in new lecture patterns, including lectures based on Screencast O Matic.
UPAYA MENINGKATKAN MOTIVASI BELAJAR AKUTANSI MELALUI MODEL PEMBELAJARAN PROJECT BASED LEARNING PADA SISWA KELAS XII AKL DI SMK NEGERI 2 SELONG PADA SEMESTER GANJIL TAHUN AJARAN 2022/2023
Authors: Hakim Sukmanul
Published: March 2023

This research aims to increase the motivation to study Accounting in class XII AKL students using the Project Based Learning model at SMK Negeri 2 Selong in the academic year 2022/2023. This research is classroom action research (CAR). The subjects of this research were students in class XII AKL in the odd semester of the academic year 2022/2023, with a total of 22 students. This research was conducted in two cycles and at the end of each cycle an evaluation of student learning outcomes was carried out. Data collection techniques used simple observation and questionnaires. The research procedures included the stages of planning, implementing actions, observing and reflecting. The results showed that the effort to use the project-based learning model could increase the motivation of class XII AKL students. The increase in motivation was marked by increasing the average learning motivation for each cycle. In cycle I, the average cycle reached 73.71% increases to the number of students who did not complete 5 people and in cycle II decreased to 2 people. Thus, it can be concluded that the use of the project-based learning model can improve the learning outcomes of XII AKL students in the odd semester of the academic year 2022/2023.
ANALISIS PROBLEMATIKA NILAI KARAKTER DALAM PEMBELAJARAN BAHASA JAWA SEKOLAH DASAR
Authors: Makrifah Arin Nurul , Ciptaningsih Ciptaningsih
Published: March 2023

Pendidikan pada dewasa ini lebih banyak menghasilkan kecerdasan intelektual saja, terlihat dari semakin berkurangnya empati dalam kehidupan bermasyarakat. Sehingga perlu dikembangkan pendidikan karakter yang diharapkan mampu mengembangkan kemampuan siswa, sehingga kelak mereka bisa menjadi manusia yang bertaqwa, jujur, adil, tanggung jawab, disiplin, kreatif, dan mampu bekerja sama. Tujuan pendidikan karakter tertuang dalam muatan lokal Bahasa Jawa. Tujuan penelitian ini adalah untuk mengetahui dan mendeskripsikan proses pelaksanaan pembelajaran Bahasa Jawa dalam pengembangan pendidikan karakter, jenis nilai-nilai karakter yang terdapat dalam pembelajaran Bahasa Jawa dan faktor-faktor yang menghambat pelaksanaan pembelajaran Bahasa Jawa dalam pengembangan karakter siswa. Dalam penelitian ini menggunakan pendekatan deskriptif kualitatif. Sebagai sumber data, dipilih peserta didik kelas V di SDN Tanjungsari 1 Kota Blitar, tahun ajaran 2022/2023 yang berjumlah 32 siswa, guru Bahasa Jawa kelas V dan kepala sekolah SDN Tanjungsari 1 Kota Blitar. Pengumpulan data dilakukan melalui observasi dan kuesioner. Selanjutnya data hasil penelitian ini menjelaskan perencanaan yang dilakukan oleh guru, proses pembelajaran dan  evaluasi pembelajaran serta hasil kuesioner oleh siswa dianalisis melalui tahap penyajian data, analisis data dan penarikan kesimpulan. Hasil penelitian memaparkan (1) pembelajaran Bahasa Jawa diawali dengan menyanyikan “lagu dolanan”, pada inti pembelajaran siswa belajar dengan cara membaca dan memahami materi sehingga peserta didik dapat mengambil tauladan dari cerita untuk diimplementasikan dalam kehidupan sehari-hari. (2) Nilai-nilai karakter pada siswa dalam pembelajaran Bahasa Jawa di SDN Tanjungsari 1 Kota Blitar terdapat 5 nilai karakter, yaitu religius, jujur, disiplin, rasa ingin tahu, dan tanggung jawab. (3) Faktor-faktor penghambat pelaksanaan pendidikan karakter dalam pembelajaran Bahasa Jawa adalah kurangnya pemahaman siswa tentang kosakata Bahasa Jawa dan siswa belum terbiasa menggunakan Bahasa Jawa yang baik dan benar sesuai kaidah.
PENGUASAAN KOSAKATA BAHASA INDONESIA PADA MAHASISWA PIAUD STAI DARUL ULUM KANDANGAN DALAM KETERAMPILAN BERBICARA
Authors: Rahim Afri Risyofa
Published: March 2023

Penelitian yang berjudul “Peningkatan Penguasaan Kosakata Bahasa Indonesia dalam Keterampilan Berbicara” Sebuah Penelitian Tindakan di Kelas Mahasiswa PIAUD STAI Darul Ulum Kandangan, Kecamatan Kandangan, Kabupaten Hulu Sungai Selatan Provinsi Kalimantan Selatan adalah suatu penelitian tindakan yang bertujuan untuk mengetahui proses peningkatan penguasaan kosakata bahasa Indonesia dalam keterampilan berbicara mahasiswa PIAUD STAI Darul Ulum di Kandangan. Penelitian ini dilakukan pada 20 mahasiswa yang dilakukan pada tahun ajaran 2021-2022. Metode penelitian yang digunakan adalah penelitian tindakan kelas atau Action Research dengan analisis data survei. Penelitian ini terdiri atas dua siklus. Setiap siklus dilaksanakan dalam tiga pertemuan. Hasil penelitian selama dua siklus memperlihatkan adanya peningkatan nilai rata-rata penguasaan kosakata bahasa Indonesia melalui keterampilan membaca. Hasil tes awal (pretes) menunjukkan nilai rata-rata 45, tes di akhir siklus pertama menunjukkan nilai ratarata 61, dan tes di akhir siklus kedua nilai rata-rata mahasiswa mencapai 80,6. Berdasarkan indikator keberhasilan, nilai tes rata-rata mahasiswa pada siklus kedua yang mencapai 80,6 menandakan bahwa penggunaan permainan kata sebagai teknik pembelajaran bahasa Indonesia dapat meningkatkan kosakata bahasa Indonesia dalam keterampilan berbicara mahasiswa.
HASIL PENGELOMPOKAN KONSUMEN UNTUK MENENTUKAN KONTEN PEMASARAN PARFUM_20ML
Authors: Tasya Alcung , Valentini Cynthia , Melsen Fandion , Flesya Vanessa , Sinambela Fitriana Aidnilla
Published: March 2023

Pemasaran bisnis sudah menjadi kegiatan yang dilakukan dalam setiap individu maupun kelompok. Dalam beberapa tahun terakhir, UMKM di Indonesia telah mengalami peningkatan pesat yang berdampak perekonomian nasional. Penelitian ini bertujuan untuk mengetahui bagaimana kinerja toko online shop dari Parfum_20 ml dan bagaimana caranya agar Parfum_ml 20 ini dapat melakukan startegi pemasarannya dengan hasil yang maksimal. Sehingga bisa diketahui bagaimana masalah-masalah yang harus dihadapi Parfum_20 ml ini. Metode yang digunakan ialah metode dari segmentasi pasar dengan melakukan pemilihan channel/platform dan mengatur time schedule untuk memposting konten.