bluuebunny/crossref_metadata_2025 huggingface dataset:
STUDI META-ANALISIS: PEMBELAJARAN BERBASIS DIGITAL DAN KONTRIBUSINYA TERHADAP KEMAMPUAN MATEMATIS
Authors: Yunita Yunita
Published: July 2022

ABSTRACT

Currently, hundreds of studies have been found in the literature on digital learning models for mathematical abilities. This meta-analysis study aims to determine the overall effect of the use of digital learning models and the extent to which the characteristics of the study moderate the effect size of the study to consider its implications later. This study analyzed 35 study effect sizes from ERIC, Google Scholar, and Semantic Scholar search. Accurate effect size calculation is assisted by CMA software. These findings indicate that the use of digital learning models has a positive effect on students' mathematical abilities and is suitable for application at the junior and senior high school levels. However, its implementation must take into account the student sample size and home learning platform. These results contribute to the Education setting and platform selection in the future.

Keywords: Mathematical Ability, Digital Learning, Meta-analytical Studies.

ABSTRAK

Saat ini, ratusan studi ditemukan dalam berbagai literatur mengenai model pembelajaran digital pada kemampuan matematis. Studi meta-analisis ini bertujuan untuk  mengetahui pengaruh keseluruhan dari penggunaan model pembelajaran digital dan sejauh mana karakteristik studi memoderasi ukuran efek studi untuk mempertimbangkan implikasinya nanti. Studi ini menganalisis 35 ukuran efek studi dari pencarian ERIC, Google Cendekia, dan Semantic Scholar. Perhitungan ukuran efek secara akurat dibantu dengan perangkat lunak CMA. Temuan ini menunjukan bahwa  penggunaan model pembelajaran digital memberikan pengaruh yang positif terhadap kemampuan matematis siswa dan cocok untuk diterapkan pada tingkat SMP dan SMA. Namun implementasinya mesti mempertimbangkan ukuran sampel siswa, dan platform rumah belajar. Hasil ini berkontribusi dalam pengaturan Pendidikan dan pemilihan platform dikemudian hari.

Kata kunci: Kemampuan Matematis, Pembelajaran Digital, Studi Meta-analisis
Mental health and COVID-19
Authors: Ashutosh Kumar , Trivedi Rachna
Published: July 2022

Background – Mental health care and concerns are usually overlooked when there are limited resources available to contain the pandemic. In this global COVID-19 crisis, mental health issues have increased and became one of the most underrated and widespread health concerns globally. Objectives – This study is an attempt to review the existing mental health concerns in the post-pandemic era through various strategies related to mental health care and global experiences with special emphasis on the context of India. By reviewing existing evidence, this study proposes recommendations and conceptual framework for mental health concerns in the pandemic. Methodology – The researchers have searched through Google Scholar and various electronic databases like PubMed, Web of Science, SCOPUS, etc. with the search terms like “psychiatry”, “mental health”, “COVID-19”, “Coronavirus”, “SARS-CoV-2”, “anxiety”, “stress”, “depression”, etc. in several combinations. They compiled information from published magazines, newspaper articles, journals, official websites of several NGOs and institutions and web pages, press releases, verified pages on social media, etc. Results – Some of the common health concerns reported were anxiety, stress, insomnia, depression, anger, denial, and fear.
Relationship between self-reported hearing impairment and occupational exposure to aggressive agents in workers
Authors: Dakhel Saif Nofan , Ibrahim Radhwan Hussein
Published: July 2022

The goal of this study was to estimate the relationship between self-reported hearing impairment and occupational exposure to too aggressive agents in Mosul workers. This is an analytical cross-sectional study was conducted in out-patient of Ibn Sina Teaching Hospital in City of Mosul, Iraq. Data collection: data were categorized into two parts; part one included information related to workers' socio-demographic characteristics like (age, gender, duration of working, work Environment, and specific diseases like hypertension). Part two included a hearing assessment. A Self-reported questionnaire (HHIE) which was developed by Ventry and Weinstein and its scores were classified based on American Speech-Language-Hearing Association (ASHA) draft guidelines, was used in the present study. A total of 500 workers participated in this study. The largest proportion of the sample was composed of men (63.7%). Regarding the occupational environment, 62 % of workers had between 0 and 4 years of work, followed by individuals with ten years or more (28%). In addition, there was a higher prevalence of closed work environments (50.5%). Among the most prevalent occupational exposures, 30.5% were exposed to noise, followed by chemical substances (17.3%) and industrial dust (8.2%). Difficulty hearing was reported by 8.2 % of participants.
Phytochemical analysis and evaluation of antioxidant activity of the leaves of Begonia picta smith
Authors: Khairnar Ashishkumar S. , Majaz Quazi , Khan G. J. , Pawar S. P.
Published: July 2022

Like most other plants begonia picta smith  contains various secondary metabolites with great potentials. The aim of this paper is to evaluate the phytochemicals by using quantitative and qualitative analysis of Petroleum ether , Chloroform, Methanol  extracts ,with the help of standard methods as well solvent residual analysis byGCHS The findings from quantification and phytochemical screening showed the presence of alkaloids, flavonoids, reducing sugars, Phenols, proteins, amino acids, saponins, tannins, terpenoids,Antioxidant activity was determined by 1, 1-diphenyl-2-picryl hydrazyl (DPPH)scavenging method, nitric oxide scavenging method, reducing power assay method and  Inhibitory concentrations (IC50) were calculated. the residual solvents present in the three herbal extract also in current specified limits. Evaluation of In Vitro Anti-Oxidant activity reveals that methanolic extract is most potent as compare to other extracts by taking Ascorbic acid as standard. This information clearly represent that the plant Begonia picta smith  is the good source of dietary antioxidant.
Improvising micro transactions using IOTA tangle on smart refrigerator applications
Authors: Muthulakshmi S , Kannammal A. , Padma Priya M , Pramila V , Shobiadevi G
Published: July 2022

The world moves towards the concept of automation. Day to Day more number of people uses the creation of new technology in effective manner. This paper helps to design a smart refrigerator using IOTA. The load sensor fixed under the tray of the refrigerator senses the load of the tray. If the load decreases the IP camera fixed to the refrigerator captures the image of the items in the tray and sends it to the user’s registered email. The catalogue of products will be available via a mobile app, through which he/she will be able to purchase the items required by viewing the image of the refrigerator sent. The transactions will be performed through IOTA network. When micro transactions are performed in Block chain, it takes more time to approve the process. By using IOTA tangle, the transactions will be carried out more fast and more secure. Thus, the payment process implemented using IOTA tangle is more secure and effective. Finally, the list of items ordered by the users will be sent to the nearby grocery store and will be delivered to the customer at their door step.
Delving into the STP marketing of health tourism in Kerala
Authors: Kariyil Rajeev , Mathew Rincy V
Published: July 2022

Tourism boosts the economy, creates thousands of jobs, improves a country's infrastructure, and encourages cultural exchange between tourists and locals. Tourism supports a large number of jobs in a range of businesses. It also provides a one-of-a-kind medical tourism alternative, in addition to its environment and culture. Kerala's ancient medical systems, such as Ayurveda, Sidha, Naturopathy, Panchakarma, Kalari, and others, have drew visitors from all over the world. Furthermore, modern medicine plays a key role in Medical Tourism because of its low cost and compatibility with medical systems in the developed countries.  Patients from the West and the Middle East are flocking to India, specifically Kerala, for cardiology, nephrology, orthopaedics, cancer, and other medical procedures. STP Marketing- Segmentation, Targeting and Positioning, It is easy to understand and applying in the business which will definitely make a change the economic status.  Segmentation of the market will help to understand the pros and cons of this sector. In Kerala, there are a number of speciality hospitals that provide efficient treatment for complicated medical conditions.
Development of competency-based continuous professional development (PKB) training management model to improve competence and research culture for middle school teachers in Pematangsiantar City
Authors: Sherly Sherly , Gultom Syawal , Daryanto Eka , Nasrun Nasrun
Published: July 2022

The objectives of this study were to: (1) determine the design of competency-based sustainable professional development training management model to improve competence and culture of researching SMP teachers in Pematangsiantar City; (2) determine the effectiveness of the competency-based sustainable professional development training management model to improve competence and culture of researching SMP teachers in Pematangsiantar City. This research is a development research with ADDIE model. The subjects of this research population were all SMP City Pematangsiantar teachers totaling 1,094 people and the sample subjects of this study were SMP City Pematangsiantar teachers totaling 80 people where the sample was determined by purposive sampling technique. Data collection techniques were carried out by observation, interviews, documentation, questionnaires and tests. The results of the research are: (1) The competency-based sustainable professional development training management model to improve competence and culture of researching junior high school teachers in Pematangsiantar City was developed using the ADDIE model which includes analysis, design, development, implementation and evaluation; (2) The competency-based continuous professional development training management model is very effective in improving teacher competence and research culture.
Cardiovascular risk factors in patients with chronic autoimmune thyroiditis
Authors: Elgendy Doaa Salah , Abdelraof Maha Mohamed , Galbat Eman Abdelaziz , Abdalraouf Mie Mohamed
Published: July 2022

Introduction: Hashimoto's thyroiditis, or chronic autoimmune thyroiditis (CAT), is the most common organ-specific autoimmune disorder. Aim: To determine the relation between thyroid autoimmunity and the presence of cardiovascular risk factors. Patients and Methods: This is a case-control study included fifty patients with autoimmune thyroiditis (case group) and fifty healthy individuals with matched age and sex (control group). We analyzed the levels and variations of thyroid function, lipid profile, high sensitivity C-reactive protein (hs-CRP), insulin resistance markers comprising the HOMA-IR (homeostatic assessment insulin resistance index), QUICKI (quantitative insulin sensitivity check index). Results: There is nonsignificant positive correlation between TSH and LDL, Apo A-I, Lp (a) and Homocysteine while there is nonsignificant negative correlation between TSH and HDL, Apo B, CRP and HOMA-IR. There is a positive significant correlation between FT3 and HDL, HOMA-IR (p=0.024 and 0.013, respectively). Also, there is a significant positive correlation between Anti-Tg and Apo B, Homocysteine (p=0.013 and 0.017, respectively) while there is a significant negative correlation between Anti-Tg and HDL, Lp (a) (p=0.026 and 0.021, respectively). Conclusion: There is an association between thyroid function, thyroid autoimmunity and cardiovascular risk factors, including dyslipidemia, insulin resistance, levels of homocysteine and CRP.
Assessment of diabetes mellitus prevalence among outdoor patient departments in a tertiary care hospital
Authors: Sandhu Annie , Singh Daljinder , Singh Dharminder , Sandhu Kuldip Singh
Published: July 2022

Diabetes mellitus, affecting the multisystem in human body, is primarily characterized by chronic hyperglycemia. The impaired glucose level may be due either of insulin resistance or insulin secretion that produces micro vascular as well as macro vascular complications in human beings. Diabetes is characterized by excessive thirst, extreme hunger, frequent urination and weight loss. Pre-screening to assess random blood glucose level, before any minor or major procedure is of utmost important for better functional outcome of patients. The aim of this retrospective study was to assess the level of awareness and screening amongst patient visiting in outdoor and indoor department in a tertiary level hospital. The patients which were sent for random blood sugar testing were included in this study from a period of March 2019 to February 2020. Data of random blood sugar level of 3750 patients were scrutinized and collected from 75000 records and analyzed by Excel software for correlation and association. Keeping statistical significance of P < 0.05, the prevalence of diabetes mellitus was found to be 33.4% in tested random blood sugar levels. This study has shown more prevalence in male (m=2325, 62%) with higher incidence in age group in 41-60 years (48.4%).
Ethnobotanical note and antibacterial evaluation of “Punarnava churna” an ethnic formulation of Rayalaseema Nostrum
Authors: Sripriya D. , Sekhara M. Chandra
Published: July 2022

In this article, we document the ethnobotanical information and elucidate the antibacterial potency of ethnic formulation “Punarnava churna” (PC) prescribed for its immune boosting and strength enhancing property. “Punarnava churna” prescribed by Rayalaseema nostrum was examined against gram positive and gram negative human pathogenic bacteria by Agar well diffusion method. Results revealed that this ethnic formulation showed good antibacterial activity against bacterial strains (Staphylococcus aureus, Bacillus subtilis, Escherichia coli and Klebsiella pneumonia) at 50 mg/ml. In conclusion, the findings of this research suggest ethic drug “Punarnava churna” effective against common human pathogens and can be trusted as antibacterial agent.
Compliance to self-care management among adults with chronic obstructive pulmonary disease
Authors: Tony Mohamed I. , Ragheb Seham G. , Mohammed Hala M. , Ibrahim Wafaa K.
Published: July 2022

Background: Chronic obstructive pulmonary disease (COPD) is still defined as a disease state characterized by poorly reversible airflow limitation induced by cigarette smoke and/or other noxious particle and gases. The aim of this study was to evaluate the effect of intervention program for adults with chronic obstructive pulmonary disease on their knowledge and practices regarding compliance to self-care management. Research design: A Quasi-experimental research design was utilized to fulfill the aim of this study. Setting: This study was conducted at outpatient clinic of Menia Chest Hospital, Menia Governorate, Egypt. Sample: A purposeful sample of 115 COPD patients. Tool; one tool  was used included six parts. (1 socio-demographic characteristics of COPD patients, (2 medical history of COPD patients (3 the effect of COPD on activity of daily living and health status of COPD patients (4 Patents’ knowledge about COPD, (5) adults 'compliance to self-care management and (6) adults reported practices regarding self-care management. Results: less than two third of the studied sample had unsatisfactory total knowledge of COPD, in pre intervention program, comparing to less than three quarter of them had satisfactory total knowledge regarding COPD in post intervention program.
Sistem Informasi Persediaan Alat Tulis Kantor Berbasis Web Pada Koperasi Baytul Ikhtiar Cabang Cicurug
Authors: Ramanda Yunita , Abdullah Syahid
Published: July 2022

Koperasi Baytul Ikhtiar adalah salah satu lembaga keuangan berbasis mikro syariah, pada kegiatan yang di lakukan di koperasi tentunya membutuhkan alat tulis kantor atau yang biasa disebut ATK sebagai sarana penunjang kerja. Saat ini dalam proses pengelolaan dan penyediaan data alat tulis kantor di koperasi ini masih menggunakan cara manual sehingga laporan yang di hasilkan belum optimal. Penilitian ini bertujuan untuk merancang sistem informasi persediaan alat tulis kantor berbasis web dengan menggunakan metode waterfall. Dalam pembangunan sistem ini di harapkan dapat membantu dalam menyediakan informasi mengenai persediaan alat tulis kantor serta membantu dan mempercepat proses pembuatan laporan pemakaian guna mengurangi ketidaktepatan informasi sehingga akan menghasilkan laporan yang dapat dipertanggung jawabkan.
Implementasi keamanan informasi file dokumen shipping menggunakan algoritma AES Shipping
Authors: Dharmendra I Komang , Januhari Ni Nym Utami , Ramayasa I Putu , Putra I Made Agus Wirahadi
Published: July 2022

Dalam penyimpanan data, dokumen pengiriman disimpan tanpa pengamanan khusus. Untuk mengatasi masalah di atas, diperlukan cara yang cepat untuk melindungi data dari penyalahgunaan. Peneliti bertujuan untuk menggunakan teknik enkripsi deskriptif algoritma AES 128-bit pada sistem, karena memiliki tingkat ketahanan tertentu terhadap segala jenis serangan untuk menghindari kehilangan dan pencurian serta mengurangi risiko korupsi data/file. Proses enkripsi dan deskripsi file dokumen menggunakan algoritma AES 128-bit (Advanced.Encryption Standard ). Pada data/file, proses enkripsi plaintext (1 blok) terlebih dahulu diubah menjadi kode ASCII bilangan heksadesimal dan dibentuk menjadi matriks 4x4 byte yang disebut state . Proses enkripsi pada AES 128 adalah 10 loop iteratif transisi state . Data yang diproses pada setiap putaran adalah data biner . Setiap putaran AES membutuhkan pembangkitan kunci dan menggunakan 4 transformasi dasar, yaitu subbyte, shiftrows, mixcolumns, dan addroundkey. Dan proses dekripsi mengkonversi dalam urutan invshiftrows, invsubbytes, addroundkey, dan invmixcolumns. Pemrosesan enkripsi dan dekripsi dilakukan setiap 128 bit atau 16 karakter dalam file dokumen dengan lebih dari 16 karakter yang dikonfirmasi. Jadikan proses enkripsi dan dekripsi AES paralel. Untuk file teks dengan kurang dari 16 karakter, padding akan terjadi. Padding adalah penggunaan karakter ASCII kosong untuk mengisi sejumlah kecil karakter sehingga dapat diproses tanpa mempengaruhi hasil enkripsi atau dekripsi.
Prototipe Teknik Mutual Authentication Untuk Digital Rights Management
Authors: Setyoko Yoso Adi , Zafia Anggi , Utomo Aulia Desy Nur
Published: July 2022

Our research is the adoption of mutual authentication techniques on smart cards for Digital Rights Management (DRM) which is applied using network protocol engineering. We adopted the protocol engineering from the mutual authentication technique owned by the Mifare Desfire smart card. The tests carried out in our research are testing the security aspects of authentication and data confidentiality. Our authentication test is done by changing the client and server master keys that determine the success of authentication. Meanwhile, data confidentiality testing is carried out by tapping data sent from the client to the DRM server. When authentication by the client and server fails, the software is declared invalid and vice versa. The result of our research is the successful implementation of the adoption of the smart card's mutual authentication technique for application protection in DRM including authentication and encryption functions.
Analisis Kepuasan Pelanggan Menggunakan Algoritma C4.5
Authors: Adriansa Mezi , Yulianti Liza , Elfianty Lena
Published: July 2022

Gas Lpg merupakan  bahan bakar  yang ditetapkan pemerintah  dan  didistribusikan oleh

oleh pangkalan untuk disalurkan kepada masyarakat, yang terkadang belum mengetahui tingkat kepuasan para pelanggan. Berdasarkan data yang di analisis pada tingkat kepuasan pelanggan dapat di ambil atribut berupa pelayanan, fasilitas dan kualitas produk yang dijual. Pada pangkalan Gas Elpiji 3kg Darmawati membutuhkan sistem analisis untuk mengetahui tingkat kepuasan para pelanggan. Analisis sistem yang dibuat menggunakan bahasa pemrograman visual basic 2010 dan metode yang digunakan yaitu Algoritma C4.5. Teknik pengambilan data yang didapat menggunakan metodologi observasi, wawancara, dan studi pustaka. Tahapan dalam sistem kepuasan dengan metode algoritma C4.5 yaitu pengambilan data pelanggan dan data atribut dari kuisioner, perhitungan nilai entropy dan gain, serta hasil kepuasan. Hasil yang diperoleh dari kuisioner yang dibagikan kepada 20 pelanggan terdapat 15 pelanggan dengan hasil puas dan 5 pelanggan dengan hasil tidak puas. Sehingga dari sistem yang dibuat dapat membantu pihak pangkalan untuk mengetahui tingkat kepuasan para pelanggan menggunakan sistem dengan metode algoritma C4.5
Prevalência da soropositividade para sífilis congênita na Região Centro-Sul do estado do Rio Grande do Sul
Authors: Pitana Thalisson , Wolf Jonas , Grando Allyne
Published: July 2022

A bactéria Treponema pallidum é reconhecida mundialmente como o agente causador da sífilis. Essa infecção é capaz de promover sífilis congênita (SC), característica da ocorrência de transmissão vertical na gestação, podendo progredir para neurosífilis, e tendo como consequência a prematuridade e até mesmo aborto. A SC é um grave problema de saúde pública no mundo todo. O objetivo do presente estudo foi determinar a prevalência de sífilis congênita na maternidade do Hospital Nossa Senhora Aparecida de Camaquã/RS (HNSA). Este estudo transversal retrospectivo que incluiu todos os casos de SC ocorridos no ano de 2019, identificados pela busca ativa das gestantes no banco de dados informatizado do hospital. As variáveis qualitativas foram verificadas pelo teste qui-quadrado de Pearson e exato de Fisher. Os dados quantitativos foram comparados pelo teste t de Student. Todas as análises foram bilaterais com nível de significância de 5% (p <0,05). A frequência para a Sífilis Gestacional (SG) foi de 4,4% (24/545), enquanto a SC foi detectada em 2,0% (11/545) da amostra. A frequência de SG foi superior nos meses de julho, novembro e dezembro de 2019 (p <0,05). A SG foi associada com a cor de pele da mãe (branca) e tempo de gestação (1º e 2º semestre), enquanto que a SC foi associada com a faixa etária das mães (21 a 25 anos) (p <0,05). Não houve diferença significativa entre as idades dos casos de SG e SC e aqueles que apresentaram resultados negativos (p >0,05). Os resultados podem servir de base para desenvolver ações de promoção da saúde, prevenção e assistência as gestantes, buscando uma melhor compreensão dos fatores determinantes na abordagem da sífilis na gestação, seja por problemas no diagnóstico ou pelo tratamento oferecido à gestante e parceiro.
On the solitary solutions for the nonlinear Klein-Gordon equation coupled with Born-Infeld theory
Authors: Guo Z. , Zhang X.
Published: July 2022

The aim of this paper is to prove the existence of the nonlinear Klein-Gordon
equations coupled with Born-Infeld theory by using variational methods.
Balance of calcium, magnesium and phosphorus in short-rotary cultivations of the forest-steppe
Authors: Demydenko O.V.
Published: July 2022

The purpose of research. Give a comparative comprehensive assessment of the balance of phosphorus, Ca and Mg and establish a hierarchy of subordination of balances with the productivity of short-rotation crop rotations for long-term use of organo-mineral fertilizer system using by-products of crops as organic fertilizers for Central Forest-Steppe of Ukraine. Methods. The generally accepted methods of researches were applied: field, laboratory, mathematical methods, comparative-settlement. Research results. Regardless of the structure of short-rotation crop rotation, the balance of Ca and Mg was deficient, and the balance of Ca exceeded the balance of Mg by 4.88 times. The balance of Ca was 1.74 times more stable by the coefficient of variation. Between the components of the phosphorus balance and the balance of Ca revealed 62.5% of correlations of medium and strong level, between the turnover of Mg–9.14%, and between the components of the balance of Ca and Mg revealed 34.7% of paired correlation coefficients, indicating subordination balances in the sequence: Mg next Ca then R. Between the balance of Mg and Ca and performance, the relationship was at a low functional level. The ratio of Ca to Mg in the components of the balances did not exceed the optimal values: in the main products the ratio was 1.3 to 1, and the normalized interval varied from 0.9 to 1 to 1.6 to 1. The widest ratio of Ca to Mg was in by-products 2.3–3.7 to 1 with a normalized interval of 2.7–5.0 to 1. Conclusions. When expanding the ratio of the balance of Ca to Mg > 3 to 1 and when reaching the balance of Ca > 800 kg / ha, the circulation of phosphorus is blocked, which leads to a decrease in crop rotation productivity at the yield of k.o. up to 4.0-4.5 t / ha, and with the narrowing of the ratio of Ca to Mg to 2.5 to 1 and 1.5–2.0 to 1 there is an increase in productivity to 5-6 t / ha and 6.0–7.0 t/ha from 1 hectare. According to the established criterion of the ratio of Ca to Mg in the circulation of macronutrients, crop rotations can be classified according to increased soil protection capacity (Ca to Mg > 3) and crop rotations with high productivity (Ca to Mg <2). Crop rotations with a ratio of Ca to Mg 2.0-3.0 to 1 are intermediate in nature and combine soil protection properties with high productivity.
Efficiency of control of segetal vegetation in oats in organic agriculture
Authors: Martyniuk I.V. , Tsymbal Ya.S. , Ptashnik M.M. , Ilchuk R.V. , Martyniuk N.I.
Published: July 2022

The article analyzes the results of studies conducted in the stationary experiment of NSC «Institute of Agriculture NAAS» to determine the impact of different systems of basic tillage on weed agrocenosis of oats in single and mixed crops with legumes (oats + diaper). The aim of the research is to establish the influence of different systems of basic tillage on the level of weediness of crops. The technology of growing crops in the experiment is generally accepted and recommended for the research area. The obtained research results convincingly show that from the replacement of fallow plowing by 20–22 cm by autumn disc cultivation by 10–12 cm weediness of oat crops at the time of its tillering increased from 15 to 25 pieces/m2 on average during the research or 40%. It was found that sowing oat-diaper mixture with 25% bean component, regardless of the system of main tillage, is an effective phytocoenotic agro-measure of control of segetal vegetation and reduces by 9–20% weed binary crops compared to monocotyledons. The priority of application of additional agrotechnical measure of control of segetal vegetation in agrocenosis of oats by carrying out spring pre-emergence loosening of soil by non-shelf implements by 6–8 cm was proved, which allowed to significantly reduce weed infestation. In particular, the spring pre-emergence loosening against the background of fallow plowing and autumn shallow disc cultivation weed reduction of oat crops decreased by 18 and 25% and 20 and 26%, respectively.
Assessment of the level of drought resistance of the group of seedless varieties of the collection of NSC «Tairov institute of viticulture and winemaking» on indicators of water-containing capacity of leaf tissues
Authors: Kovalyova I.A. , Muliukina N.A. , Gerus L.V. , Skrypnyk V.V.
Published: July 2022

Replenishment of the assortment of seedless varieties of Ukrainian selection is one of the tasks of breeders of NSC «IViV them. V.Ye. Tairov ». Climate change has exacerbated and increased the duration of droughts in spring and summer. That is why it is necessary to use in crosses the parent seedless component with a known level of drought resistance. According to the results of the research, the level of drought resistance of the group of seedless varieties of the ampelographic collection of the NSC «IViV im.V.Ye. Tairov «of different genetic and geographical origin was determined . Both intraspecific hybrids of Vitis vinifera and interspecific hybrids, which in their estimated genetic formula contain 3-4 species of Vitis, were studied. The study was based on determining the level of manifestation of the physiological mechanism of protection against temperature stress - the water-holding capacity of leaf tissues. Studying the content of different fractions of water (easily retained and bound) and changes in their ratio during the growing season made it possible to identify stress-tolerant varieties. The study was conducted in years with a high level of exposure to temperature stress, which increases the objectivity of the data. The obtained results confirmed the sensitivity to the lack of moisture supply of interspecific hybrids derived from varieties created with the participation of non-drought-resistant species Vitis amurensis. The research was aimed at identifying donor varieties with the sign of «drought resistance», namely varieties with high water holding capacity. Due to the impact of lack of moisture on the grape plant, samples were taken in critical phases - the phase of intensive growth of shoots, the phase of formation and growth of berries and the phase of completion of the growing season. A rather high level of drought resistance of intraspecific hybrids has been determined, which is explained by their origin from Central Asian varieties. However, the main feature of the breeding interest that they can pass on to offspring is seedlessness and product quality. In comparison with the control values, the varieties Attika and Flame seedless stood out. These varieties are recommended for use in the further selection process as sources and donors of a set of signs of selection interest, including the ability to withstand thermal stress and lack of moisture.
Economic-mathematical methods and models in management of economic activity of agricultural enterprises
Authors: Tkachenko A.M. , Buslaeva N.G. , Vetrova N.O.
Published: July 2022

The paper summarizes the most common mathematical methods used in the analysis, planning, organization, and management of economic activities of agricultural enterprises. It is determined that mathematical methods in combination with qualitative, logical methods of analysis contribute to the correct assessment of production efficiency or assessment of individual economic phenomena. It is a set of methods that turns analysis into truly scientific means of production management. It is proved that the most important universal method of research of economic activity of the enterprise is the method of modeling and construction of mathematical model of economic object. The study of economic processes in agricultural enterprises with the help of economic and mathematical modeling allows to assess the level of efficiency of the enterprise for the past period and to predict the effect of the implementation of certain management measures. Particular attention is paid to the principle of classification of economic and mathematical models on various grounds used in agricultural production during management decisions. The optimization models which make the widest group of models are considered and are intended for a choice of an optimum variant which will provide the maximum efficiency of the enterprise. Different approaches to the choice of basic parameters for building models to determine the resource potential are presented. It is revealed that during modeling it is necessary to follow the system approach, considering not only separate components and their interrelations, but also all system as a whole. It is advisable to use a system of models of parameters, characteristics, condition, and behavior in the external environment of interconnected economic processes, taking into account the complex structure of the organization, which will increase the adequacy and accuracy of results obtained in management decisions by managers of agricultural enterprises. It is established that economic-mathematical modeling allows to effectively solve specific economic problems and practical problems in the field of enterprise management in order to minimize the negative economic consequences.
Privacy-Preserving Decision Tree Solution in the 2-Part Fully Distributed Setting
Authors: Van Vu Thi , Dung Luong The , Quan Hoang Van , Luong Tran Thi , Tho Hoang Duc
Published: July 2022

Abstract— Data mining has emerged as an important technology for obtaining knowledge from big data. However, there are growing concerns that the use of this technology is infringing on privacy. This work proposes a decision tree mining solution according to the ID3 algorithm that ensures privacy in the 2-Part Fully Distributed setting.Tóm tắt— Khai phá dữ liệu đã nổi lên như một công nghệ quan trọng để thu thập kiến thức từ lượng dữ liệu khổng lồ. Tuy nhiên, ngày càng có nhiều lo ngại rằng việc sử dụng công nghệ này đang vi phạm quyền riêng tư của cá nhân. Bài báo này đề xuất giải pháp khai phá cây quyết định theo thuật toán ID3 có đảm bảo tính riêng tư trong mô hình phân tán đầy đủ hai bên.
Machine learning approach detects DDoS attacks
Authors: Son Doan Trung , Tram Nguyen Thi Khanh , Thu Tran Thi
Published: July 2022

Abstract— Denial of Service attacks have been around since the dawn of the internet age. Along with the development and explosion of the Internet, denial of service attacks are also increasingly powerful and become a serious threat in cyberspace. The article aims to evaluate machine learning algorithms: K-nearest neighbor (KNN) algorithm, Decision Tree, Random Forest algorithm and Support Vector Machine (SVM) on various metrics in detecting DDoS attacks. The main objective of the paper is to analyze the algorithms, collect data and evaluate the effectiveness of the algorithms in DDoS attack detection.Tóm tắt— Tấn công từ chối dịch vụ đã xuất hiện từ những năm khởi nguyên của thời đại internet. Song hành cùng sự phát triển và bùng nổ của mạng Internet, tấn công từ chối dịch vụ cũng ngày càng mạnh mẽ và trở thành mối đe dọa nghiêm trọngtrên không gian mạng. Bài báo hướng tới đánh giá các thuật toán học máy: Thuật toán K láng giềng gần nhất (K-nearest neighbor - KNN), cây quyết định (Decision Tree), thuật toán rừng ngẫu nhiên (Random Forest) và máy vector hỗ trợ (Support Vector Machine - SVM) trêncác chỉ số đánh giá khác nhau trong việc phát hiện các cuộc tấn công DDoS. Mục tiêuchính của bài báo nhằm phân tích các thuật toán, thu thập đánh giá dữ liệu và tiến hành so sánh hiệu quả các thuật toánvào phát hiệntấn công DDoS.
Zum Glück ist es jetzt nicht mehr so
Authors: Fehlmann Meret
Published: July 2022

Schon die allerersten prähistorischen Sachtexte für ein breiteres Publikum im 19. Jahrhundert stellen die Frage nach dem Alter der Menschheit. Die Antworten fallen unterschiedlich aus: von einer vorbehaltslosen Bejahung des hohen Alters der Menschen bei Pierre Boitard und Gabriel de Mortillet, zu einer zurückhaltenden Einschätzung bei Louis Figuier, der nicht prinzipiell das hohe Alter der Menschheit ablehnt, sondern die Vorstellung der tierischen Abstammung des Menschen. Louis Figuiers L’homme primitif richtet sich an ein jugendliches Lesepublikum, bei ihm findet eine Versöhnung von zwei aus heutiger Warte als tendenziell unvereinbar verstandenen Haltungen statt. Für ihn ist der Mensch der „privilégié de Dieu“ und weist keine Abstammung vom Tierreich auf, dennoch stütz er sich auch auf evolutionistische Ansätze, die eine Entwicklung der Menschheit wenigstens im kulturellen Bereich annehmen lassen.

In den belletristischen Bearbeitungen steht die Frage nach dem Alter der Menschheit nicht mehr im Zentrum, einzig bei Adrien Arcelins Chasseurs de rennes à Solutré wird auf diese Debatte eingegangen, um sie dann als nicht relevant zu beurteilen, da die Bibelexegese über 150 Berechnungen des Alters der Erde und der Menschheit produziert habe. Vielmehr nimmt der Kampf der verschiedenen Bewohner Europas eine wichtige Rolle ein. Die Vorzeit wird ähnlich wie bei David Friedrich Weinlands Roman Rulaman als eine Zeit des Kampfes ums Überleben und um Raum zwischen verschiedenen Ethnien geschildert. Die verschiedenen Ethnien unterscheiden sich im Aussehen und dem ihnen zugebilligten Kulturgrad erheblich. Bei Arcelin ist die Grundhaltung, dass die Ausrottung der in ihrer Entwicklung stehengebliebenen Solutréens durch die nachstossenden, fortgeschritteneren Arier gerechtfertigt war. Bei Weinland fällt die Einschätzung leicht anders aus: Der Untergang der Aimats wird beklagt, aber Weinland lässt die Stammesälteste im Sterben noch die Prophezeiung ausstossen, dass später einmal die echten Kinder der Sonne – Arier – kommen würden, die für den Fortschritt stehen.

Die Vorstellung, dass das Leben in der Vorzeit hart und von Einschränkungen geprägt gewesen sei – ein permanenter Kampf ums Überleben – findet sich in fast allen der untersuchten Werke. Die Menschen der Vorzeit werden in der Regel als schmutzig, hässlich und mehr tierisch denn menschlich geschildert, besonders deutlich tritt dies bei Boitards homme fossile zu Tage, den der Erzähler an seiner Gewaltbereitschaft als Menschen erkennt. Auch Érnest D’Hervillys Crek passt in dieses Schema, denn er durchläuft eine Entwicklung von einem mehr tierischen als menschlichen Jungen zu einem Modell für alle Kinder – die prähistorischen wie die das Buch lesenden. Von einem Nutzen des Studiums der Vorzeit wurde also ausgegangen.
„Der normale Schulwegwahnsinn“
Authors: Mikota Jana
Published: July 2022

Schule ist nicht nur in der realistischen Kinder- und Jugendliteratur ein beliebter Schauplatz, sondern auch in der fantastischen. Nicht nur Harry Potter muss in Hogwarts die Schulbank drücken, Vampire müssen ebenfalls trotz ihrer Unsterblichkeit zur Schule gehen und mitunter den Lernstoff mehrmals hören. Im Kontext der Vampirliteratur existieren unterschiedliche Schulformen: (1) Vampirkinder besuchen menschliche Schulen und müssen ihre Existenz als Vampir geheim halten; (2) Vampire besuchen ihre eigenen Schulen mit anderen Fächern und Abläufen. Vor allem die zweite Form ermöglicht es den Lesern und Leserinnen, über bestimmte Sachverhalte, die z. T. mit Angst besetzt sein können, nachzudenken.

Hinzu kommt, dass die Vampirliteratur an Leser und Leserinnen unterschiedlicher Altersstufen adressiert ist und der Schauplatz Schule so auch andere Funktionen erhält. Auch die Vampire kämpfen mit Hausaufgaben und Lehrpersonen und somit mit ganz alltäglichen Problemen, an denen sie im Laufe der Handlung jedoch wachsen können.

Der Beitrag stellt den Ort Schule in der Erstlese-, Kinder- und Jugendliteratur vor und arbeitet die unterschiedlichen Funktionen des Ortes Schule heraus. Alle vorgestellten Romane greifen den schulischen Alltag auf, schildern Erlebnisse und Erfahrungen, die den Lesern und Leserinnen die Möglichkeit bieten, das Erzählte nicht nur zu rezipieren, sondern auch weiterzuerzählen und mit eigenen Vorstellungen zu verbinden.
Vorbilder für die Jugend?
Authors: Frei Dana
Published: July 2022

Humanitäre Einsätze gehören bei Stars mittlerweile beinahe zum guten Ton. Gleiches gilt für die zahlreichen transkontinentalen Adoptionen, mit denen Prominente allzu oft in den Medien erscheinen. Beide Themen sorgen für kontroverse Diskussionen unter Medienrezipierenden wie auch Medienschaffenden.

Der Beitrag untersucht eine Auswahl von deutsch-sprachigen Online-Promi-Magazinen, die mehrheitlich eine jugendliche Leserschaft ansprechen, im Hinblick auf ihre Darstellung von Adoptionen durch Prominente sowie auf die Thematisierung ihres humanitären Engagements. Im Zentrum der Diskussion stehen insbesondere zwei Aspekte:

1) Der Fokus der humanitären Einsätze von Prominenten liegt – zumindest in ihrer medialen Inszenierung – überwiegend auf der ‚Rettung’ von Kindern. Die transkontinentale Adoption eines solchen ‚rettungswürdigen’ Kindes wird dabei als ultimativer humanitärer Akt und Krönung eines humanitären Images inszeniert.

2) Obwohl beide untersuchten Arten humanitärer Star-Handlungen (Einsätze wie auch Adoptionen) von Jugendlichen wie auch Erwachsenen intensiv beurteilt und mitunter auch radikal verurteilt werden, liegt der Fokus der Kritik stets auf der Hinterfragung der Aufrichtigkeit eines Stars in seinem Engagement und kaum je auf der moralischen Legitimation dieser Art ‚westlicher’ Einmischung in ‚restlichen’ Kontinenten.

Potentiell neo-kolonialistische oder neo-missionarische Interpretationen werden durch die Fokussierung auf Kinder umgangen und durch diese stets als ‚rettungswürdig’ erachteten Geschöpfe kaschiert.
Abschied vom Macho
Authors: Weber Michael
Published: July 2022

Die Bücher und Hörspiele der Jugendserie TKKG sind Bestseller im deutschsprachigen Raum. Mehr als 15 Millionen Bücher und 30 Millionen Tonträger gingen seit 1979 über den Ladentisch. Doch so erfolgreich, so umstritten ist die Serie auch. Zu altbacken die Sprache, zu antiquiert die Rollenbilder. Am meisten fällt Macho „Tarzan“ oder Tim auf. Dieser pflügt sich – mit den anderen drei Bandenmitgliedern im Schlepptau – mit roher Gewalt durch die Strassen einer unbekannten deutschen Grossstadt. Gaby, das Mädchen in der Gruppe, hat nichts zu melden und glänzt vor allem durch ihr hübsches Äusseres. Karl und Willy, der von den anderen wegen seiner krampfhaften Fresssucht als „Klösschen“ verspottet wird, sind Aussenseiter, die einzig dazu dienen, Anführer Tim weiter zu erhöhen. Trotz vernichtender Urteile seitens der Kinder- und Jugendliteratur-Forschung liess sich Autor Rolf Kalmuczak, der unter dem Pseudonym Stefan Wolf in gut 28 Jahren über 150 Folgen TKKG veröffentlichte, nicht von seinem Kurs abbringen. Nach seinem Tod 2007 setzte André Minninger, der zuvor bereits Bücher und Hörspiele für das politisch unbelastete liberale Pendent Die Drei ??? geschrieben hatte, sie fort. Der Beitrag zeigt auf, wie sich die Serie in Minningers Autorschaft verändert hat. In ihren zwölf Hörspielen machte die Serie einen markanten Wandel durch. Zwar behielt Minninger die überkommenen Rollenbilder weitestgehend bei, er zog aber Macho Tim die Zähne und führte einige starke Frauenrollen ein. Die Gewalt trat in den Hintergrund und TKKG lösten ihre Fälle neu im Stil der Drei ??? mit Köpfchen statt mit Schlägen.
"You’ve gotten too big for your skin"
Authors: Werner Tamara
Published: July 2022

„You’ve gotten too big for your skin. You’re arrogant”, konstatiert Kittys Leitwölfin ärgerlich. Die Mittzwanzigerin und Werwölfin Kitty Norville mag ihren Status als Schlusslicht auf der Hierarchieleiter des Rudels nicht mehr akzeptieren. „I just – I just need space” (Vaughn 2005, 133f.), rechtfertigt sie sich. Sie ist dabei, sich zu entwickeln, ihre Möglichkeiten und Grenzen auszuloten, und erlebt somit breitgefächerte Entwicklungsprozesse, die eine grosse Masse – von pubertierenden Jugendlichen bis hin zu sinnsuchenden Erwachsenen – ansprechen können. Es handelt sich hierbei um Entwicklungs- und Selbstfindungsprozesse der (Spät-)Adoleszenz, die anhand der Folie dieser Werwölfin verhandelt werden. Doch Kitty ist nicht allein, vielmehr zählt sie zur beachtlichen Riege von Werwölfinnen, die sich in der aktuellen jugendliterarischen Urban Fantasy tummeln. Diese Popularität erstaunt umso mehr, da die Werwölfin lange Zeit ein Schattendasein fristete und auf die objektifizierte Rolle des Opfers oder der femme fatale festgenagelt schien. Mit der Beliebtheit ihres männlichen Gegenstücks konnte sie lange nicht konkurrieren. Auch heute gilt der Werwolf immer noch als v.a. männlich konnotiert. Der männliche Werwolf war stets beliebt und fasziniert als Gestaltwandler, der ständig im Kampf mit sich selbst ist, in innere und äussere Konflikte verstrickt. Unter dieser Prämisse ist es umso spannender, die aufmarschierende Riege der Werwölfinnen unter die Lupe zu nehmen. Dies geschieht anhand fünf herausragender Protagonistinnen – Teenager und Tweens – aus Annette Curtis Klauses Blood and Chocolate (1997), Ginger aus Ginger Snaps (2000), Kelsey Bornstein aus Suzy McKee Charnas’ Boobs (1989), Kitty aus Carrie Vaughns Kitty and the Midnight Hour (2005) und Elena Michaels aus Kelley Armstrongs Bitten (2001) und Stolen (2003).
„Bin kein Hase, bin ein Löwe!!!!“
Authors: Giesa Felix
Published: July 2022

Jenseits der Graphic-Novel-Debatte, die im Kern eine Nobilitierung der Comics als Literaturform anstrengt, werden Comics gemeinhin als ‚männliche‘ Erzählform wahrgenommen. Comics werden nach dieser Auffassung vornehmlich von männlichen Künstlern geschaffen, propagieren daher ein männliches Blickregime und werden in der Schlussfolge daher auch bevorzugt von einem männlichen Publikum gelesen. Insbesondere scheint im ureigenen Comicgenre, der Superheldenerzählung, über die Etablierung eines Heldentypus in antiker Tradition eine visuelle Manifestation hegemonialer Männlichkeit gegeben zu sein. Damit einhergeht auch eine entsprechende Darstellung von Weiblichkeit, die tatsächlich einen male gaze zu favorisieren scheint. Demgegenüber existieren in den Mainstreamsuperheldencomics der letzten Jahre vermehrt auch weibliche Superheldinnen wie Ms. Marvel oder die neue Thor, die nicht nur – wie etwa Batgirl oder Supergirl schon aufgrund ihrer desavouierenden Bezeichnung als ‚Mädchen‘ – in konkreter Abhängigkeit eines männlichen Helden stehen. Vorbereitet wurden solche Entwicklungen jedoch bereits in den Underground Comix der 1970er Jahre sowie den Alternative Comics der 1990er Jahre, die erstmals männliche Sexualität und männliches (meist adoleszentes) Gefühlserleben psychologisch differenziert, wenn auch teilweise äusserst subversiv auf die Comicseite bringen. In den 2000er Jahren entstehen aus diesem Einfluss heraus mit den Adoleszenzcomics auch im deutschsprachigen Bereich Bildgeschichten, die ein Männlichkeitsbild jenseits hegemonialer Blickregime etablieren und dieses teilweise als Grundlage für ihre Figurenzeichnungen heranziehen. Der Beitrag illustriert dies, indem er sowohl die (Selbst-)Inszenierung von Männlichkeit durch die Zeichner als auch die Inszenierung von Männlichkeit durch die Comiczeichnerinnen einem close-reading unterzieht. Dabei kann deutlich gemacht werden, dass Adoleszenzcomics ein deutliches Bild ‚neuer‘ Männlichkeit zeichnen.