bluuebunny/crossref_metadata_2025 huggingface dataset:
The Fermentation of Robusta Coffee With Termite Enzymes to Improve Quality and Taste
Authors: Sudarma I Wayan , Badung S.D A.A.N.
Published: June 2022

This research involved the fermentation of robusta coffee with termite enzymes in Subak Pura Pengulu, Bongancina village, Busungbiu–Buleleng between May and December 2019. The raw materials included red pickled coffee, termite microbes, water, pH meter molasses and plastic. 100 kg of the coffee sample was added in each wet processing treatment. Methods included sample preparation, field observations, coffee harvesting, sorting, and post-harvest processing. A completely randomized design with four treatments and five replications was used to create high-quality products with distinct flavors and aromas. Physical quality, taste, caffeine content and amino acids were reported. According to the findings, the yields of wet coffee beans and dry samples without skin (ose) were 51.73% and 19.36%, respectively. In addition, in the specialty categories, the three-day fermentation period produced the best taste, with a score of 83.50. Furthermore, the defect value was specified as 13.4, water content as 12.5, caffeine content as 3.40% w/w, and the acids, including oleic and α-linoleic, were 51.147 and 0.587 ppm, respectively. According to the economic estimations, the three-day fermented coffee would produce an optimal profit of IDR 8,090,000.
Keywords: robusta coffee, termite, fermentation
Efficiency in the Use of Rice Farming Organic Inputs to Promote Food Security
Authors: Sukanteri Ni Putu , Diah Yuniti I Gusti Ayu , Suryana I Made , Verrawati Yenny
Published: June 2022

Rice farming is highly developed in Tabanan Regency, which accounts for 27.04% of the agricultural land in Bali’s eight districts. Rice output is on the decline: 188,446 tons of rice were produced in Tabanan in 2018, 158,757 tons in 2019, and 142,846 tons in 2020. The use of inputs can influence farm productivity. Rice farmers have started to switch to using organic inputs such as fermented organic fertilizers through input processing technology innovations, and to using vegetable pesticides to combat disease. Land owned by farmers is classified as narrow land. Farmers’ awareness of the importance of providing healthy food is a powerful motivator for using organic inputs in rice production. The focus of this research was to determine the efficiency of rice farming inputs to ensure food security. The research took place in Tabanan Regency, with five groups of farmers who use organic fertilizers to manage their farms. Data were analyzed using cost analysis to determine the amount of input used in farming, and acceptance analysis to determine the optimal amount of farm productivity and income. The farmers had low land, according to the findings. Farmers have not been able to use farm inputs according to the requirements of Indonesian national standards to create food security, so their use of inputs is inefficient. The results showed that farmers benefit from rice farming innovations.
Keywords: Organic farming, input rice organic
Effects of Plant Growth-Promoting Rhizobacteria and Trichoderma sp. on Potato Growth on Medium Plains
Authors: Purwantisari Susiana , Ferniah Rejeki Siti , Nurchayati Yulita , Jannah Siti Nur
Published: June 2022

The potato is a horticultural commodity with a high economic value and a consistent selling price. Indonesian potato production, however, remains lower than that of other Asian countries. One reason for this is that environmental sustainability has influenced the expansion of potato cultivation on a plateau, so medium plains have become an alternative. Aside from high-quality seeds, using plant growth-promoting rhizobacteria (PGPR) and Trichoderma sp. as an organic fertilizer is a strategic effort to boost potato yields on medium plains. The focus of this research was to examine how PGPR and Trichoderma sp. affect the growth of potatoes on medium plains. This study was carried out in Temanggung and Sawangan, Magelang, Jawa Tengah, at an altitude of 480 m.a.s.l, using the a complete random design with four different treatments: P0 = control, Treatment P1 = PGPR 20 ml/10 liter water, Treatment P2 = PGPR 40 ml/10 liter water, Treatment P3 = Trichoderma 80 gram/10 liter water, Treatment P4 = Trichoderma 150 gram/10 liter water, and Treatment P5 = PGPR 20 ml/10 liter water + Trichoderma 80 gram/10 liter water. The study found that a combination of PGPR and Trichoderma sp. treatment resulted in better growth than a single PGPR treatment.
Keywords: biopesticide, organic fertilizer, PGPR
Selection of suitable IoT-based End-devices, tools, and technologies for implementing Smart Farming: Issues and Challenges
Authors: Gupta Rajeev , Bhatnagar Vivek , Kumar Gautam , Singh Gulbir
Published: June 2022

Purpose of Study: In the contemporary world, Internet-of-Things have become an indispensable part of our lives. The present era is of sensor-based electronic gadgets. Nowadays, more or less, every aspect of human life, from Home Automation, Healthcare, and Fitness, Agriculture, Education, Entertainment, Locomotive, Smart Farming, Smart Digital Cities, towards Industrial IoT, each one is redesigned from statistical to qualitative mechanisms. With the growing trends and technological transformations, the reality is that Internet-of-Things play a vital role. Currently, the agriculture industry is precise, and data-centered than traditional farming. Such revolutionary changes in the smart farming in the last decades are shaking the existing agriculture methods and creating new opportunities in the specific agriculture domains like crop status, insect and pest detection, and removal, irrigation, soil preparation, crop surveillance along with a range of unfolded issues and challenges. This study highlights the potential unfolded issues and challenges in the domain specific and precise selection of Internet-of-Thing based devices with supportive technologies and tools for instigating Smart Farming.

Methodology: a systematic data processing approach with literature search and screening to review, is used in this study to identify selection of suitable iot-based end-devices, tools and technologies for implementing smart farming

Main Findings: This study discussed the various IoT end-devices, tools and technologies in a well-organized manner. This study also highlights the foremost outspread challenges during selection of IoT-based resources for smart farming.

Implications: This article is beneficial to all concerned stakeholders involved in agricultural activities like farmers, agricultural institutions, professional decision makers, who are passionate for enhancing the smart farming.

Novelty/Originality of the study: Various scholars/researchers have been making efforts for smart farming by using IoT concepts in agriculture. This study make some efforts to discussed past research on IoT tools and Technology and challenges in selection of IoT devices for implementing an Iot based infrastructure for smart farming.
Application of honeycomb panel structures in spacecraft
Authors: Ivanov E.A. , Ikonnikova A.A. , Kleshnina I.A. , Nagovitsin V.N. , Pokhabov A.Yu.
Published: June 2022

Most modern spacecraft are made of three-layer honeycomb panels which are layered structures consisting of two carrier layers and a honeycomb core. When equipment, cables, waveguide networks are installed, a panel has inserts as well. For a spacecraft design to use inserts, it should account for various factors that can affect the bearing capacity of an insert. The study investigates the influence of these factors, tests the method of analytical calculation, and carries out the calculation of inserts. The practical importance of the experimental data obtained makes it possible to use them in honeycomb structures design and calculations.
Formation of welded solid-state wire bonds in the manufacture of 12Kh18N10T steel porous mesh materials
Authors: Tretyakov A.F.
Published: June 2022

The experience of using turbine blade shells based on porous mesh materials in aerospace products and high-temperature gas turbines has shown that they are subject to destruction when under the influence of pressure fluctuations. So, first of all, fatigue failure occurs, in those permeable shells where there are no high-quality connections of structure-forming elements. It has been established that in diffusion welding and rolling welding, the strength of welded bonds increases with an increase in the process temperature, as well as in the vacuum depth and deformation time in diffusion welding. Research findings show that at strain rates of 10–2…1.0 s–1, the low quality of welded joints is explained by the high deformation resistance of microroughnesses on the contact surfaces of the wires and the low rate of diffusion mass transfer in the connection zone. The study establishes that under the conditions of diffusion and impact welding in vacuum, the formation of a solid-phase joint is possible on the entire surface of the macrocontact. At the same time, in percussion welding, the influence of the temperature value in the investigated interval on the quality of welded bonds is much lower than that for processes with lower loading rates. Practical recommendations are given for determining the optimal modes of wire mesh welding in the manufacture of porous mesh materials made of 12Kh18N10T steel.
Safe assets w międzynarodowym systemie finansowym
Authors: Bogołębska Joanna , Feder-Sempach Ewa , Stawasz-Grabowska Ewa
Published: June 2022

Monografia stanowi pierwsze na polskim rynku opracowanie poświęcone problematyce funkcjonowania aktywów bezpiecznych (ang. safe assets) w międzynarodowym systemie finansowym. Pojęcie safe assets jest coraz powszechniej wykorzystywane w odniesieniu do zjawisk zachodzących na rynkach finansowych, w tym na rynkach długu, jednakże nie podjęto dotychczas próby kompleksowego wytłumaczenia jego złożonej, wielowątkowej natury.
Autorki monografii podejmują pionierską próbę usystematyzowania pojęcia safe assets, osadzenia go w polskiej literaturze przedmiotu poprzez wskazanie atrybutów i funkcji tej kategorii aktywów. Przyjmują dwie perspektywy badawcze: popytową i podażową. Perspektywa podażowa, stanowiącą obszerniejszą część monografii, podkreśla dominującą pozycję publicznych aktywów bezpiecznych w stosunku do instrumentów emitowanych przez sektor prywatny. Perspektywa popytowa ukazuje główne podmioty akumulujące safe assets - ich motywy, zakres wykorzystania, tendencje.
Ze względu na ograniczoną możliwość podaży bezpiecznego długu publicznego oraz rosnący popyt, powstaje kluczowe pytanie o alternatywne źródła dostarczania tych aktywów. Mając świadomość, że niedopasowania popytowo-podażowe na rynku aktywów bezpiecznych stanowią jedno z kluczowych wyzwań dla stabilności międzynarodowego systemu finansowego, Autorki wskazują na szczególny potencjał do zwiększania puli safe assets w ramach europejskiej unii walutowej oraz w Chinach.
Publikacja jest niezbędnym źródłem wiedzy dla ekonomistów, doktorantów i studentów na kierunkach: finanse, ekonomia, międzynarodowe stosunki gospodarcze, a także dla praktyków rynku finansowego, zainteresowanych tą kategorią aktywów.
[Book Review] Ungrading: Why Rating Students Undermines Learning (and What to do Instead), edited by Susan D. Blum
Authors: Green Corinne A. , West Conor , Delahunty Janine
Published: June 2022

Book review of Ungrading: Why Rating Students Undermines Learning (and What to do Instead), edited by Susan D. Blum.
A arte postal na XVI bienal de São Paulo
Authors: Romano Camila Bôrtolo
Published: June 2022

O presente artigo aborda a participação da arte postal na XVI Bienal de São Paulo e suas repercussões no campo artístico e museológico, 40 anos depois da realização do evento. Investiga-se as transformações pelas quais passou essa manifestação artística que de uma existência marginal, no circuito independente das artes, passou a ser assimilada no contexto museal. Para isso, analisaremos o desenvolvimento da arte postal, do contexto internacional ao brasileiro, sua presença no Museu da Arte Contemporânea da Universidade de São Paulo (MAC USP), na XVI Bienal de São Paulo e seu processo de musealização no Centro Cultural São Paulo (CCSP).
Narrativas Textiles
Authors: Borre Luciana
Published: June 2022

Quais regimes de verdade buscamos criar sobre as práticas e narrativas têxteis contemporâneas? Como estão circulando as discussões e os processos de criação em artes têxteis? Como mapear práticas têxteis contemporâneas em um contexto histórico cultural que impossibilita demarcações metodológicas e construção de novos muros epistemológicos? Neste artigo, construo algumas pistas para entender as práticas artísticas têxteis contemporâneas apresentando exemplos da terceira edição da exposição coletiva Tramações: a memória e o têxtil, desenvolvida de maneira virtual, em 2020, pelo Departamento de Artes, da Universidade Federal de Pernambuco. E ainda reflito sobre como e quais narrativas autobiográficas estão compondo regimes de verdade no campo das artes têxteis.
Os saberes matemáticos na formação do professor leigo
Authors: Costa Reginaldo Rodrigues da , Bezerra Fabiane Aparecida de Almeida
Published: June 2022

O objetivo desse texto é apresentar os saberes a e para ensinar matemática, presentes nos oito módulos de Didática da Matemática do Projeto Logos II que visava habilitar, no nível de 2º Grau, professores leigos que estavam atuando em algumas regiões do Brasil. A pesquisa foi orientada pela História Cultural, mobilizou os conceitos de saberes a e para ensinar de Hofstetter e Schneuwly (2017, 2003); de Valente (2017, 2017a, 2007, 2004).  Procuramos responder a seguinte questão: Quais saberes matemáticos e orientações metodológicas foram veiculados no Projeto Logos? Há indícios que nesse curso havia uma articulação entre os saberes a e para ensinar Matemática. Além disso, observamos uma interação de três tendências pedagógicas: formalista moderna, tecnicista e empírico-ativista. Ao que tudo indica, os professores tiveram contato com os saberes profissionais dando condições para realizar a tarefa de ensinar matemática.
DIGITALIZATION IN FINANCIAL REPORTING AND MARKETING ON MICRO, SMALL AND MEDIUM ENTERPRISES AS A STRATEGY FOR ECONOMIC RECOVERY IN THE PANDEMIC PERIOD
Authors: Rosyidiana Riska Nur , Ervianty Rizka Miladiah , Nurul Mochammad , Linduwati Putri Marta , Arda Rini Indri Nurisa , Rahmawati Laily Agustina
Published: June 2022

Background: Covid-19 pandemic has been attacking for more than a year. And since then, the pandemic not only attacked public health, but also attacked the economic sector. Micro, Small and Medium Enterprises (MSMEs) as the backbone of the economy are the most affected parties. One of the reasons is that the offline sales and marketing channels. The members of the East Java IKM Forum (FIJ) Bojonegoro Branch also face this problem. MSMEs as a 60% contributor of Indonesia’s Gross Domestic Product (GDP), have a very important role in economic recovery. Support for this industry is not only the obligation of the government, but also the obligation of various parties such as the higher education institution. Objective: This community service aims to help the members of FIJ Bojonegoro Branch to transform into a digital ecosystem. Digitalization is not only in marketing, but also in financial reporting. Methods: Implementation of activities in 3 (three) stages, planning stage, implementation stage in the form of training and mentoring and evaluation stage. Results: This activity has encouraged 100% training participants to transform into a digital ecosystem and also helps MSME owners in optimizing the use of financial transactions applications and the use of marketing applications. Conclusion: MSME digitalization training and assistance is very useful in helping business owners evaluate business financial performance and carry out effective promotions, attracting attention and helping to bring products closer to customers.
FAMILY HEALTH HISTORY CONFIRMED POSITIVE COVID-19 DURING SELF ISOLATION
Authors: Nurliani Lia , Pragholapati Andria
Published: June 2022

Introduction: Coronavirus or the so-called Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-COV2) is a virus variant that was newly discovered in December 2019, in Wuhan China, and is the cause of the infectious disease Coronavirus Disease-2019 (COVID-19). This virus can infect all ages and manifests mild to severe symptoms, and can even cause death. Until now, various efforts have been made to prevent the spread of COVID-19, including the government's policy to self-isolate for people infected with COVID-19 who have mild symptoms. During self-isolation, different health problems may arise for each person. Mental health is very necessary to support physical health during isolation. Method: The method used is a qualitative method, a case study on five family members who were confirmed positive for COVID-19 by describing the health history of each individual. Results: In this study, researchers will use both data analysis techniques, namely quantitatively to synthesize research results with a quantitative approach, for example, Cohort Study or Case-Control Study, Cross Sectional Study, Prospective Study / cohort, Retrospective Study, Rapid Review, Observational Study and qualitatively to synthesize (summarize) the results of the descriptive qualitative research. Conclusions: Isolation independent by someone or group of people with mild COVID-19 symptoms. Isolation independent could walk with good if needs base fulfilled and have good mental health.
THE EFFECT OF PUPPET SHOW ON HOSPITALIZATION IN PRESCHOOL CHILDREN (3-6 YEARS)
Authors: Sulpat Emuliana , Mardhika Amellia , Fadliyah Lailatul , Tyas Anestasia Pangestu Mei , Harianto Susilo , Ilhami Yusrina Ika
Published: June 2022

Introduction: One way to minimize the impact of hospitalization is storytelling with dolls or puppet shows , which is a type of game using puppet media through fantasy games for preschoolers (3-6 years old). The purpose of this study was to determine the effect of play therapy "puppet show" on the impact of hospitalization on preschool children (3-6 years) in the Orchid room of Ibnu Sina Hospital, Gresik Regency. Methods: This study uses a quasi experiment with one group pre test and post test design. The population of this research is parents who have preschool age children (3-6 years) who are hospitalized in the Orchid Room of Ibnu Sina Hospital, Gresik Regency. While the sampling using consecutive sampling technique obtained 22 parents. The independent variable studied was play therapy "puppet show". The dependent variable in this study was the impact of hospitalization on preschool children aged (3-6 years) who experienced hospitalization. Data collection is done by using a questionnaire then analyzed through the T-test statistical test. Results: The results of this study indicate that there is a significant difference between positive and negative impacts on pre-school age children during nursing actions before and after play therapy "puppet show" (p value = 0.005 smaller than = 0.05). Conclusions: Based on the results of the research obtained, the need for play should still be given to children undergoing hospital treatment to continue the child's growth and development, reduce stress and tension.
NON-PHARMACOLOGICAL INTERVENTIONS IN HEART FAILURE PATIENTS TO IMPROVE SLEEP QUALITY
Authors: Rosiah Rosiah
Published: June 2022

Introduction: The Symptoms of Paroxysmal Nocturnal Dyspnea (PND) in patients with heart failure are shortness of breath at night which may appear suddenly causing the patient to wake up and will affect people’s quality of sleep. One of the treatments that can be given to patients with poor sleep quality is by providing non-pharmacological interventions. Methods: This study uses a literature review design. The database used in the literature is Google Scholar, Science Direct and PubMed in which the terms are selected and limited with the range 2011-2021 which can be accessed in PDF format. Results: The results obtained five articles of non-pharmacological interventions that can be given to treat the problem of sleep disorders in heart failure patients: massage therapy, position therapy; and Cognitive Behavioral Therapy (CBT). Sleep disorder is not handled properly, it can affect the physical condition of this heart failure patient. Interventions massage therapy are hand, back and foot massage to improve sleep quality in heart failure patients with pain and environmental problems. Heart failure patients, there is a relative change in hemodynamic status so it is necessary to take one of the actions by providing nursing interventions in the form of a right lateral rest position for nursing. Anxiety conditions are one of the mental problems that occur in heart failure patients and CBT interventions can be given. Conclusions: These three therapies are effective in overcoming sleep disturbances and improving sleep quality for heart failure patients.
INEFFECTIVE BREATHING PATTERN NURSING CARE WITH CHRONIC KIDNEY DISEASES PATIENT
Authors: Ilkafah Ilkafah , Fujiyah Eka Fatmah , Purwanto Cucuk Rahmadi , Susanto Joko , Lutfiandini Cherlys Tin
Published: June 2022

Introduction: Patient with Chronic Kidney Disease (CKD) will get a failure to breathing because of fluid accumulation in the lung. Patients with CKD will not be able to breathe normally, so the main problem that often occurs is an ineffective breathing pattern.  This study aims to explore nursing care for patients with ineffective-breathing pattern in patient with CKD at Soegiri Lamongan hospital. Methods: The design of this research is qualitative with a case study, the methods of data collection through interviews, observations, physical examinations and documentation studies. The data obtained were analyzed by comparing case reviews and literature reviews. Results: The results of the problems for nursing diagnosis that arise are CKD with ineefective-breathing pattern. Interventions that are emphasized and carried out in the field in the case study are providing a semi-fowler/ fowler position, and maintaining oxygen therapy. Final evaluation of nursing diagnoses in patients with problems resolved and goals achieved according to the specified time criteria. Conclusions: The study indicated that ineefective breathing pattern can be solved by positioning a semi-fowler or half-sitting position, decrease fluid intake and correcting anemia. Suggestions for nurses to focus in developing science and technology to be applied to all nursing personnel in providing nursing care for ineffective breathing patterns for patients with chronic kidney disease.
Research by undergraduate medical students: Common pitfalls and ethical dilemmas
Authors: Mulkalwar Alhad
Published: June 2022

In recent times, multiple attempts have been made to involve medical students in research projects right from the early days of their medical education. Such efforts have started showing results and students are involving themselves in research workshops and activities to understand scientific literature better. However, they need to keep in mind some important ethical aspects which they may tend to overlook. Here, I highlight the loopholes exploited by young researchers and shortcuts used in the process. I also focus on different measures medical students could incorporate in their research to generate quality data, while following ethical practices.
A POPULAÇÃO EM SITUAÇÃO DE RUA E O CIRCUITO INFERIOR DA ECONOMIA URBANA EM CAMPOS DOS GOYTACAZES/RJ
Authors: Jordão Diogo
Published: June 2022

A população em situação de rua possui presença marcante nas cidades brasileiras, revelando-se como uma expressão da pobreza urbana no país. Em um contexto de excessiva privação, esses sujeitos se apropriam de espaços e recursos específicos com o intuito de garantir condições mínimas de sobrevivência, fazendo do território usado um abrigo. Nesse contexto, este trabalho busca analisar os usos do território pela população em situação de rua, dando foco às atividades laborais que esses sujeitos executam no Centro de Campos dos Goytacazes, RJ, em suas estratégias de sobrevivência. A pesquisa é de cunho qualitativo, baseando-se em pesquisa bibliográfica e em trabalhos de campo, onde se lançou mão de observações e entrevistas com roteiros previamente elaborados. Os resultados indicam que esse grupo populacional realiza atividades que se inserem no circuito inferior da economia urbana, como a catação de materiais recicláveis, a venda de doces e artesanatos, assim como o trabalho de “flanelinha”, constituindo assim novos usos do território.
Human height and weight classification based on footprint using gabor wavelet and K-NN methods
Authors: Wicaksono Ryan Bagus , Aulia Suci , Hadiyoso Sugondo , Hidayat Bambang
Published: June 2022

Height and weight are parameters to identify a person, especially for a forensic. To identify height and weight is usually done manually. In addition to manually using height measuring devices and scales, you can also use information related to the foot length. There is a relationship between height and foot length can be expressed in the correlation coefficient (r) as same as for weight. Therefore, in this study, a system for measuring human height and weight based on images of the footprint is implemented on Android. The methods used in this study are Gabor Wavelet and k-Nearest Neighbor (k-NN). The simulation results generate the best accuracy of 75%. The system can also used to categorize the ideal body level according to the Body Mass Index (BMI). The system is able to process images with an average computation time of 8.92 seconds.
Sink position analysis of energy efficiency in Wireless Sensor Network (WSN) using routing Stable Election Protocol (SEP)
Authors: Masykuroh Kholidiyah , Ramadhani Afifah Dwi , Raharjo Islamianto Hudan
Published: June 2022

Wireless Sensor Network (WSN) is a wireless network that involves sensors in the network. The sensor node on the WSN will collect data information from the environment around the sensor. However, each sensor node has storage capacity, processing power, communication range, and battery life limitations. The use of energy consumption from these factors is the main problem because each sensor node uses its power consumption from the battery. Stable Election Protocol (SEP) is a type of routing protocol on WSN that uses the clustering method. SEP has a function to extend the time interval before the first node dies. This research was carried out on the SEP protocol with alive node parameters, total initial energy, and stability. This study indicates that on a network that uses 100 nodes with sink positions (0, 100), two nodes are still alive and several nodes that are still alive in several sink positions that use 200 nodes. For networks where there is still a lot of energy remaining in the sink position (0, 100) with the network using 100 nodes and for networks using 200 nodes, the remaining energy is mainly in the sink position (100, 100). The highest stability period is in the sink position (50, 50) for networks using 100 nodes, and for networks using 200 nodes, the highest stability period is in the sink position (100, 50).
Classification of ECG signal-based cardiac abnormalities using fluctuation-based dispersion entropy and first-order statistics
Authors: Jafal Naufal Juhaidi , Hariyani Yuli Sun , Hadiyoso Sugondo
Published: June 2022

The heart is one of the most important organs in the human body. The presence of abnormalities in the heart can be fatal for a person. One way to detect heart abnormalities is an Electrocardiogram (EKG) signal examination. To facilitate the detection of ECG signal abnormalities, an automatic classification method is needed. Therefore, in this study, a method for classifying ECG signals using FdispEn (Fluctuation-based dispersion Entropy) and first-order statistics is proposed. FdispEn measures the uncertainty in the signal and is expected to be able to distinguish the physiological state of the ECG signal time series. In this study FdispEn and statistical computing were used as feature extraction of the ECG signal and combined with the Support Vector Machine (SVM) for the classification process of Normal ECG, AFIB (Atrial Fibrilation), and CHF (Congestive Heart Failure). The method proposed in this study generates an accuracy of 91.5%. The system proposed in this study is expected to assist in the clinical diagnosis of abnormalities in the heart.
The foF2 depression over pameungpeuk during solar minimum and its application on HF radio communication
Authors: Jiyo Jiyo , Pamungkas Wahyu , Ramadhani Syifa Namira
Published: June 2022

The foF2 depression of the ionosphere layer is a reference for determining the maximum usable frequency depression for an HF communication circuit. This paper discusses the foF2 depression observed at the Pameungpeuk observation station ((7.65°S, 107.96°E; inclination 32.38°S), in 2018 - 2021 when solar activity is minimum and the sun is at a minimum, but the foF2 depression continues to occur up to the severe level. Likewise, geomagnetic disturbances also occur to a moderate level, so that geomagnetic disturbances are a potential cause of foF2 depression. Another result is that the temporal variation pattern of the foF2 depression is less clear so that statistical models cannot be used. The correlation between the number of occurrences of foF2 depression in a month and the number of occurrences of geomagnetic disturbances is relatively low and found in months without the occurrence of geomagnetic disturbances but still foF2 depression occurs, so that geomagnetic disturbances are not the only cause of foF2 depression. Another possibility is the cause of foF2 depression is solar eclipse. In the application, information on the prediction of the foF2 depression that will occur can be used in frequency management, so that a frequency channel is obtained that matches the reflectivity of the ionospheric layer during operation. Anomalies of solar activity and geomagnetic disturbances can be used as inputs in predicting the foF2 depression.
oxLDL-Induced Trained Immunity Is Dependent on Mitochondrial Metabolic Reprogramming
Authors: Groh Laszlo A. , Ferreira Anaisa V. , Helder Leonie , van der Heijden Charlotte D. C. C. , Novakovic Boris , van de Westerlo Els , Matzaraki Vasiliki , Moorlag Simone J. C. F. M. , de Bree L. Charlotte , Koeken Valerie A. C. M. , Mourits Vera P. , Keating Samuel T. , van Puffelen Jelmer H. , Hoischen Alexander , Joosten Leo A. B. , Netea Mihai G. , Koopman Werner J. H. , Riksen Niels P.
Published: June 2022

Following brief exposure to endogenous atherogenic particles, such as oxidized low-density lipoprotein (oxLDL), monocytes/macrophages can adopt a long-term pro-inflammatory phenotype, which is called trained immunity. This mechanism might contribute to the chronic low-grade inflammation that characterizes atherosclerosis. In this study, we aim to elucidate immunometabolic pathways that drive oxLDL-induced trained immunity. Primary isolated human monocytes were exposed to oxLDL for 24 h, and after five days stimulated with LPS to measure the cytokine production capacity. RNA-sequencing revealed broad increases in genes enriched in mitochondrial pathways after 24 h of oxLDL exposure. Further omics profiling of oxLDL-trained macrophages via intracellular metabolomics showed an enrichment for tricarboxylic acid (TCA) cycle metabolites. Single cell analysis revealed that oxLDL-trained macrophages contain larger mitochondria, potentially likely linked to increased oxidative phosphorylation (OXPHOS) activity. Co-incubation with pharmacological blockers of OXPHOS inhibited oxLDL-induced trained immunity. The relevance of OXPHOS was confirmed in a cohort of 243 healthy subjects showing that genetic variation in genes coding for enzymes relevant to OXPHOS correlated with the capacity of monocytes to be trained with oxLDL. Interestingly, OXPHOS appears to play an important role in the increased cytokine hyperresponsiveness by oxLDL-trained macrophages. The TCA-cycle can also be fuelled by glutamine and free fatty acids, and pharmacological blockade of these pathways could prevent oxLDL-induced trained immunity. This study demonstrates that the mitochondria of oxLDL-trained macrophages undergo changes to their function and form with OXPHOS being an important mechanism for trained immunity, which could unveil novel pharmacological targets to prevent atherogenesis.
Theoretical Study on the Kinetics of a Special Particle Swarm
Authors: Guo Tao
Published: June 2022

Prior studies have focused on the overall behavior of randomly moving particle swarms. However, the characteristics of ubiquitous special particle swarms that form in these swarms remain unknown. This study demonstrates a generalized diffusion equation for randomly moving particles that considers the velocity and location aggregation effects in a special circumstance (that is, in a moving reference frame Ru relative to a stationary reference frame R0). This equation can be approximated as the Schrodinger equation in the microcosmic case and describes the kinetics of the total mass distribution in the macrocosmic case. The predicted density distribution of the particle swarm in the stable aggregation state is consistent with the total mass distribution of massive, relaxed galaxy clusters (at least in the range of r < rs), preventing cuspy problems in the empirical Navarro-Frenk-White (NFW) profile. This article is helpful for inspiring people to think about the essence of universal gravitation.
Hepatitis E Virus Seroprevalence and Associated Risk Factors in Pregnant Women Attending Antenatal Consultations in Senegal
Authors: Diouara Abou Abdallah Malick , Lo Seynabou , Nguer Cheikh Momar , Senghor Assane , Diop Ndiaye Halimatou , Manga Noël Magloire , Danfakha Fodé , Diallo Sidy , Faye Dieme Marie Edouard , Thiam Ousmane , Biaye Babacar , Manga Ndèye Marie Pascaline , Thiam Fatou , Sarr Habibou , Lo Gora , Ndour Momar , Manga Sébastien Paterne , Diaby Nouhou , Dieng Modou , Diop Idy , Dieye Yakhya , Toure Kane Coumba , Peeters Martine , Ayouba Ahidjo
Published: June 2022

In West Africa, research on the hepatitis E virus (HEV) is barely covered despite the recorded outbreaks. The still low level of access to safe water and adequate sanitation is one of the main factors of HEV spread in developing countries. HEV infection induces acute or sub-clinical liver diseases with a mortality rate ranging from 0.5 to 4%. The mortality rate is more alarming (15 to 25%) among pregnant women, especially in the last trimester of pregnancy. Here, we conducted a multicentric socio-demographic and seroepidemiological survey of HEV in Senegal among pregnant women. A total of 1,227 consenting participants attending antenatal clinics responded to our questionnaire. Plasma samples were collected and tested for anti-HEV IgM and IgG by using the WANTAI HEV-IgM and IgG ELISA assay. HEV global seroprevalence was 7.9% with 0.5% and 7.4% for HEV IgM and HEV IgG, respectively. One participant's sample was IgM/IgG positive, while four were declared indeterminate to anti-HEV IgM as per the manufacturer's instructions. From one locality to another, the seroprevalence of HEV antibodies varied from 0 to 1% for HEV IgM and from 1.5 to 10.5% for HEV IgG. The data also showed that seroprevalence varied significantly by marital status (p<0.0001), by the regularity of income (p=0.0043) and by access to sanitation services (p=0.0006). These data could serve as a basis to setup national prevention strategies focused on socio-cultural, environmental and behavioral aspects for a better management of HEV infection in Senegal.
Metabolic Food Waste as Food Insecurity Factor – Causes and Preventions
Authors: Balan Ioana Mihaela , Gherman Emanuela Diana , Brad Ioan , Gherman Remus , Horablaga Adina , Trasca Teodor Ioan
Published: June 2022

The Metabolic Food Waste [MFW (kg of food)], first time developed in 2016 as a new indicator by Serafini and Toti, indicates the amount of food consumed over the nutritional requirements and the impact of this overconsumption on the environment. It is necessary to identify the causes and to develop potential methods to prevent and reduce MFW, at the same time with increasing consumer awareness about unsustainable diets and changing diet habits toward more environmentally conscious consumption patterns. By analysing and corroborating external data available for food waste, nutritional requirements, environmental impact of food waste and consumer behaviour, we identified as primary causes for MFW the lack of nutritional education and little understanding of the nutritional requirements amongst all categories of consumers, no access to appropriate food resources or reduced availability of fresh produced food. We conclude that for the quantification of the negative impact of MFW on both the environment and human health, we need a decisive action to raise consumer awareness for healthy and sustainable diets, together with an uniform worldwide distribution of the nutritious food.
Protectivity of Covid-19 Vaccines and Its Relationship with Immune Response and Vaccination Strategy: a One-Year Cohort Study
Authors: Tanir Ferdi , Mete Burak , Demirhindi Hakan , Kara Ertan , Nazlıcan Ersin , Dağlıoglu Gülçin , Kibar Filiz , Cetiner Salih , Kanat Ceren
Published: June 2022

This prospective cohort study aimed to evaluate the efficacy of COVID-19 vaccine schemes, ho-mologous versus heterologous vaccine strategies, and vaccine-induced anti-S-RBD-IgG antibody response in preventing COVID-19 among 942 healthcare workers one year after vaccination with the inactivated and/or mRNA vaccines. All participants received the first two primary doses of vaccines, 13.6% of them lacked the dose-3, 50.5% the dose-4, and 90.3% the dose-5. Antibody lev-els increased with the increase in number of vaccine doses and also in heterologous vaccine regi-mens. In both inactive and mRNA vaccines, infection rates were significantly higher in 2-dose-receivers, but lower in 4- or 5-dose receivers and increasing the total number of vaccine doses resulted in more protection against infection: the 3-dose regimen yielded 4.71 times more protection, the 4-dose 11.76 times and 5-dose 38.46 times more protection from COVID-19 infec-tion, compared to any 2-dose vaccination regimens. Antibody levels at the end of the first year of 4- or 5-dose-receivers were significantly higher than 2- or 3-dose-receivers. To conclude; increased number of total vaccine doses and anti-S-RBD antibody levels increased the protection from COVID-19 infection. Therefore, four or more doses are recommended in one year, for effective protection, especially in risk groups.
Diversity and Potential Function of the Bacterial Rhizobiome Associated to Physalis ixocarpa Broth. in A Milpa System, in Michoacan, Mexico
Authors: Ariza-Mejía Daniella , Oyoque-Salcedo Guadalue , Angóa-Pérez Valentina , Mena-Violante Hortencia , Álvarez-Bernal Dioselina , Torres-García Jesús R.
Published: June 2022

Michoacan state has a long history in plant domestication’s. Physalis ixocarpa is a native plant that growth associated to corn crops from this region. Such plants have similar fruits to Physalis philadelphica (husk tomate). Due to the domestication process includes the adaptation to environmental factors, we ask if 1) Does P. ixocarpa has the capacity of association with bacterial communities of the zone where it was domesticated?, and 2) Does the rhizobiome of this plant can increase the potential functions in the soil?. An experiment was established in a traditional milpa system. Samples of rhizobiome from corn, P. ixocarpa, P. philadelphica, and soil were sequenced using Next Generation Sequencing in the region 16S. The potential function, metabolic pathway reconstruction and participation of each bacteria genus was inferred using iVikodak platform. A total of 34 Phyla and 795 genera were identified. Purine metabolism's was the principal function, where all rizhobiomes showed similar metabolic pathways. However, the difference among plant species is the participation of the distinct genera in the purine metabolism. We conclude that rhizobiome of P. ixocarpa shows complementarity for the soil functions, and their utilization can be helpful in zones where the agricultural practices have degraded microbiological soil conditions.
Youth innovative entrepreneurship under digitalization of economics: analysis of foreign experience in assessing the effectiveness of support
Authors:   Plekhanov Russian University of Economics, Sokolov Maxim , Marushko Dmitry ,   Belarus State Economic University, Zhigun Leonid ,   Plekhanov Russian University of Economics, Morozov Ivan ,   Plekhanov Russian University of Economics, Surilov Meir ,   Plekhanov Russian University of Economics
Published: June 2022

In the international sense, the digital economy is a network, systemically organized spatial structure of relations between economic entities. It includes the sector of creation and use of new information, technologies and products, telecommunications services, electronic business, electronic commerce, electronic markets, remote services and the like. There are different views on what should and should not be attributed to the digital economy. Initially, it was assumed that this is an expanded concept of the Internet economy, which includes neighboring market segments. This understanding has been revised in recent years, as many industries, including the «real industry», are undergoing a digital transformation. The process covers retail, passenger and cargo transportation, tourism, industry, agriculture, catering, hotel business, medicine, public administration. The enterprises of these industries, which caught the trend and started changes, become, in fact, Internet companies. The purpose of the work is to analyze the past experience of supporting young entrepreneurs in the context of state subsidy and financing programs. In the course of the work, the task is to analyze the foreign experience of supporting young entrepreneurs and its implementation in Russia using international experience in conditions of new digital economy. The results of the work will be useful for analyzing the impact of support mechanisms for start-up entrepreneurs in the CIS.
Financial sustainability of the Iraqi federal budget in 2006-2020 and its effect on governance
Authors:   Wasit University, Atiya Ahmed Sabeeh , Raghad Hussein Ali ,   Wasit University, Kashcool Adel Salam ,   Wasit University
Published: June 2022

The matter of financial sustainability is essential for both advanced and developing economies. It regulates the work of the policies of expenditure with revenue in the short and long term. This research assumes that the increase in the budget deficit is accompanied by an increase in the size of public debt, which will weaken the government’s ability to achieve financial sustainability, the research aims to identify the extent of the government’s ability to achieving to sustainability and obstacles, and it used the descriptive-analytic approach for coverage the theoretical side and then it used the pattern of econometrics for estimated the relationships among the variables (subject of study) for the period 2006-2020. The results of the econometrics analysis indicated that the approved equilibrium relationship long-term between the revenues and expenditures also indicated the causal relationship in one way, which it represented the revenues it causal the expenditures, at the last main recommendations summarized about the rehabilitation of the taxation sector, which is no less important than the oil sector under the fair legislation for guaranteeing all their rights and sacrifices.
Online purchasing intention using the technology acceptance model (TAM) approach
Authors:   Universitas Negeri Malang, Sidanti Heny , Murwani Fulgentius Danardana ,   Universitas Negeri Malang, Wardhana Ery Tri Djatmika Rudijanto Wahyu ,   Universitas Negeri Malang, Sopiah  ,   Universitas Negeri Malang
Published: June 2022

The purpose of this research is to exposure review about several factors of online Purchasing Intention as a form of how consumers behave in accepting digital technology and have an interest in doing behavior. In fact, that the individuals tend to do this behavior, this study uses the Technology Acceptance Model (TAM) approach. The importance of understanding one’s behavior in acceptance technology, the technology acceptance model known as the TAM is growing along with the advancement of information technology itself and changes in user behavior, TAM Model 1, the actual technology use variable is influenced by the perceived usefulness variable, perceived ease of use, attitude towards using technology, and behavioral intention to use. Due to the actual technology use cannot be observed by researchers using a list of questions, it is replaced by the name of perceived usage, TAM 2, external variables are added directly, namely social influence processes which include Subjective Norm and Image with moderator variables Voluntariness and Experience; and cognitive instrumental processes which include Job Relevance, Output Quality, and Result Demonstrability. TAM 3, by adding one of them the Computer Self-Efficacy variable as an external variable that affects Perceived Ease of Use, Online Purchasing Intention influenced by the existence of transactional interest in online.
Innovation capability as a mediation in the relationship of social capital and entrepreneurial leadership behavior on the performance of culinary and hospitality sectors’ SMEs in Pekanbaru, Indonesia
Authors:   Sekolah Tinggi Ilmu Ekonomi Indonesia, Purwati Astri Ayu , Budiyanto  ,   Sekolah Tinggi Ilmu Ekonomi Indonesia, Suhermin  ,   Sekolah Tinggi Ilmu Ekonomi Indonesia
Published: June 2022

The main objective of the research is to evaluate SME performance issues in the Culinary and Hospitality sectors in Pekanbaru via utilizing a number of company internal environmental parameters to develop the dynamic procedure for improving the efficacy. The purpose of this study is to investigate the relationship between social capital and entrepreneurship with respect to the mediating role of organizational innovation capabilities. The present study is applied in terms of purpose and descriptive-survey in terms of data collection. The statistical population of this study includes faculty members that the study population in this study is 2116 people. The method of cluster and random sampling is simple. The sample size according to Morgan table and Cochran’s formula with an error of 0.05 is equal to 325 people. Structural equation modeling technique and PLS Smart software have been used to investigate the causal relationships between variables in a coherent manner. The findings showed that there was not direct link between social capital and culinary and hospitality SMEs’ business performance in Pekanbaru. Problems related to strong social capital, such as over-information, problems due to recklessness, and myopia, along with investing a lot of time and money to maintain relationships, can affect the development of entrepreneurial orientation. Based on the research findings in this regard (social capital and entrepreneurial orientation), the structural dimension of social capital (relational and cognitive) has a negative relationship and other dimensions have a positive relationship with entrepreneurial orientation. In this regard (social capital and entrepreneurial orientation) organizational innovation capabilities play a mediating role.