bluuebunny/crossref_metadata_2025_split huggingface dataset:
Efek Jumlah Ridge terhadap Performansi Antena Horn untuk Aplikasi Tomografi
Authors: OKTAFIANI FOLIN , SULISTYANINGSIH SULISTYANINGSIH , MUNIR ACHMAD 
Published: April 2024

ABSTRAKPaper ini membahas pengaruh jumlah profil ridge terhadap performansi antena horn untuk aplikasi tomografi. Penelitian ini mengobservasi dua variasi jumlah ridge, yaitu dua ridge dan empat ridge. Untuk mengevaluasi pengaruh jumlah ridge terhadap kinerja antena horn, maka didesain tiga jenis antena horn yang berbeda: antena horn tanpa ridge (horn konvensional), antena horn dengan penambahan dua ridge (DRHA), dan antena horn dengan penambahan empat ridge (QRHA). Ketiga jenis antena difabrikasi dengan menggunakan teknik CNC milling dengan bahan dasar aluminium. Kinerja antena kemudian dikarakterisasi melalui eksperimen yang bertujuan untuk mengamati pengaruh jumlah ridge terhadap parameter-parameter antena, yaitu koefisien refleksi, gain, dan pola radiasi. Hasil dari karakterisasi eksperimen menunjukkan bahwa QRHA, yaitu antena horn dengan penambahan empat ridge, memberikan kinerja terbaik dalam hal bandwidth, beamwidth, dan gain.Kata kunci: antena horn; frekuensi cut-off; tomografi; double-ridge, quad-ridge. ABSTRACTThis paper discusses the effect of ridge number on the horn antenna performance for tomography application. The study observes two variations in the number of ridges: two ridges and four ridges. To evaluate the impact of the number of ridges on the horn antenna's performance, three different types of horn antennas were designed: horn antenna without ridge (conventional horn antenna); horn antenna with two addition ridges (DRHA); horn antenna with four addition ridges (QRHA). The antennas were fabricated using CNC milling technique with aluminum as the base material. The antenna performance was then characterized through experiments aimed at observing the influence of the number of ridges on antenna parameters in term of reflection coefficient, gain, and radiation pattern. The results of the experimental characterization indicated that QRHA, the horn antenna with the addition of four ridges, exhibited the best performance in terms of bandwidth, beamwidth, and gain.Keywords: horn antenna,cut-off frequency,tomography,double-ridge,quad-ridge.
PELATIHAN PENYUSUNAN LAPORAN KEUANGAN USAHA BERBASIS MICROSOFT EXCEL PADA PELAKU UMKM, DESA MOJODESO, BOJONEGORO
Authors: Untarini Nindria , Asandimitra Nadia , Frianto Agus , Tiarawati Monika 
Published: April 2024

Laporan keuangan penting bagi pemilik Usaha Mikro, Kecil, dan Menengah (UMKM) karena menjadi bukti bahwa UMKM memiliki kinerja keuangan yang baik dan dipercaya sehingga meningkatkan kepercayaan bank dalam memberikan kredit usaha atau modal kepada UMKM. Namun, masih sekitar 72% UMKM di Indonesia belum memiliki akses permodalan dari bank maupun Lembaga keuangan bukan bank. Kendalanya adalah ketidakmampuan UMKM mengelola keuangannya secara tertib dan berkala. Karena itu, diperlukan edukasi dan pengenalan bagaimana menyusun laporan keuangan yang mudah dan efektif bagi para pelaku UMKM. Tujuan PKM ini adalah memberikan edukasi dan pelatihan penyusunan laporan keuangan berbasis Ms Excel bagi pelaku UMKM di bidang minuman dan makanan yang tergabung dalam komunitas Creative Economy Center (CEC) di desa Mojodeso, kecamatan Kapas, kabupaten Bojonegoro. Kegiatan ini dilaksanakan di Balai Desa Mojodeso, Bojonegoro dengan jumlah peserta 15 UMKM. Tahapan kegiatan ini meliputi perencanaan, pelaksanaan, dan evaluasi. Data di analisis secara deskriptif dengan teknik prosentase. Hasil kegiatan menunjukkan bahwa aktivitas pelatihan penyusunan laporan keuangan usaha berbasis Ms Excel mampu meningkatkan pemahaman dan ketrampilan bagi para pelaku UMKM dalam mencatat laporan keuangan. Kegiatan monitoring dan evaluasi dilakukan untuk memastikan para peserta dapat mempraktekan pencatatan laporan keuangan usaha dengan menggunakan Ms Excel dengan benar dan rutin melalui penyerahan soft file laporan keuangan usaha berbasis Ms Excel kepada tim PKM. Kesimpulan PKM ini adalah kegiatan pelatihan mampu meningkatkan pemahaman dan ketrampilan dalam praktek membuat laporan keuangan usaha berbasis Ms Excel.
PENDAMPINGAN PENGELOLAAN AKTIVITAS LABORATORIUM UNTUK MENINGKATKAN PEMAHAMAN DAN KETRAMPILAN DASAR UJI MIKROBIOLOGI SERTA PEMANFAATAN MIKROBA DALAM PENGOLAHAN MAKANAN BAGI SISWA PESERTA EKSTRAKURIKULER SCIENCE CLUB DI SMA KATOLIK SANTA MARIA SURABAYA
Authors: Sutedja Anita Maya , Kusumawati Netty , Nugerahani Ira , Virly Virly 
Published: April 2024

Science club merupakan merupakan salah satu kegiatan ekstrakurikuler di SMA Katolik Santa Maria Surabaya yang menjadi mitra dalam kegiatan abdimas. Kegiatan abdimas bertujuan melakukan pendampingan pengelolaan aktivitas laboratorium untuk meningkatkan pemahaman dan ketrampilan teknik mikrobiologi dasar serta pemanfaatan mikroba dalam pengolahan makanan bagi siswa peserta science club. Abdimas dilakukan dalam tiga tahap perlaksanaan yaitu preparasi, pendampingan pengelolaan aktivitas laboratorium dan evaluasi. Preparasi dilakukan untuk mengidentifikasi permasalahan dalam penyelenggaraan kegiatan science club disekolah mitra. Pelaksanaan pendampingan aktivitas laboratorium meliputi pembuatan materi ajar untuk pelaksanaan kegiatan science club, pelatihan bagi guru pendamping science club dan laboran, serta penyelenggaraan kegiatan praktikum bagi siswa peserta science club. Evaluasi untuk melihat ketercapaian tujuan abddimas dilakukan melalui pemberian kuis dan kuesioner untuk siswa peserta science club. Kegiatan abdimas menghasilkan buku "Panduan Dasar Uji Mikrobiologiâ€ dan leaflet tentang â€Fermentasi Yoghurtâ€ untuk pelaksanaan kegiatan praktikum bagi siswa peserta science club. Pelatihan yang diadakan selama abdimas memberikan ketrampilan pada guru pembina dan laboran dalam mempersiapkan dan mengelola aktivitas praktikum di laboratorium. Praktikum yang diberikan kepada siswa selama kegiatan abdimas dapat meningkatkan pengetahuan dan keterampilan tentangdasar uji mikrobiologi dasar dan pemanfaatan mikroba dalam fermentasi yoghurt bagi siswa peserta ekstrakurikuler science club. Berdasarkan data hasil kuesioner, setelah mengikuti aktivitas laboratorium yang diberikan, memberi dampak bagi sebagian besar siswa peserta science club (98%) memiliki kemampuan mempraktekkan teknik dasar uji mikrobiologi dan menerapkan prinsip kerja aseptis untuk memanfaatkan mikroba dalam fermentasi yoghurt.
Overview of the application of open cell foam heat exchangers
Authors: Solovev S. A. , Soloveva O. V. , Shakurova R. Z. , Golubev Ya. P. 
Published: April 2024

PURPOSE. Review modern highly porous cellular heat exchangers. METHODS. We conducted a broad literature review on highly porous cellular structures used as heat exchangers. We studied both domestic and foreign literature. RESULTS. We analyzed highly porous heat exchangers of various structures: stochastic (foam with open and closed cells) and ordered (honeycombs and lattices). Methods for producing open/closed cell foams and additive technologies for producing honeycomb and lattice structures have been studied. The basic properties of highly porous structures are described. The factors influencing heat transfer and hydrodynamics in highly porous cellular heat exchangers are analyzed. A review of theapplication areas of highly porous metal heat exchangers is carried out. CONCLUSION. Heat transfer and hydrodynamics in highly porous materials depend on structural parameters, such as porosity, cell size and geometry, diameter, and geometry of the strands. Increasing porosity and cell size leads to a decrease in heat transfer coefficient and pressure drop. Changing the cell geometry affects the specific surface area of the heat exchanger and the pressure drop. Cells with complex geometries, such as octet, have a large surface area and provide a high heat transfer coefficient but high resistance to coolant flow. Cells with simple geometries, such as a cube, on the other hand, provide low flow resistance and low heat transfer coefficient. In general, any structural parameter change affects heat transfer and hydrodynamics.
Industrial environmental control of polycyclic aromatic hydrocarbons in organic fuel combustion product
Authors: Ivanitskiy M. S. 
Published: April 2024

RELEVANCE of this study lies in the computational justification of the choice of the installation location of a multipoint sampling probe in the measuring section of the flue of boiler plants of energy enterprises and thermal power plants that have a significant negative impact of emissions on the environment, in order to increase the reliability and representativeness ofinstrumental measurements during industrial environmental control (PEC) of polluting emissions (PE). PURPOSE. Improving the environmental safety of thermal power plants in the current conditions of the introduction of state principles of technological regulation of emissions is associated with the establishment of technological emission indicators for each source of atmospheric pollution at energy enterprises with a significant negative impact on the environment. In this regard, energy enterprises should carry out round-the-clock monitoring of PE, which requires reliable instrumental control of the content of marker substances in the combustion products of power boilers by determining a representative sampling point on the flue or chimney of an energy boiler installation. METHODS. The paper uses methods of computer simulation of gas dynamics to determine the local fields of concentration of PE and flow velocity and assess their unevenness in the flue of an energy boiler. RESULTS. Using the example of an operating energy boiler plant of a thermal power plant, a control section of the flue was determined to ensure industrial environmental control of marker substances in the combustion products of organic fuels. The average values of the concentration of PE and the flow rate of combustion products of local fields in the calculated sections and their values on the longitudinal axis of the boiler flue are determined, and their uneven distribution is estimated. CONCLUSION. The obtained research results can be used at energy enterprises and thermal power plants to justify the choice of a control representative measuring section for conducting a PEC, and to develop an environmental efficiency improvement program (EEIP).
Influence of dissolved oxygen in the environment on toxicity indices obtained by various bio-testing methods
Authors: Manakhova P. V. , Smirnov A. V. , Semenova M. I. , Kovalevskaya A. S. 
Published: April 2024

RELEVANCE of the study comes from the understanding of the necessity of continuous development of toxicological analysis. Since The simplest organisms are used in toxicological analysis as bioindicators, the reactions of which to the presence of certain pollutants will always differ, the only way to assess the usefulness of a bioindicators as a tool is to study its behavior under specific tasks. Biondicators differ in their metabolic properties, in particular, in the ways of obtaining energy from the presence of molecular oxygen in the environment. However, it is assumed that the presence of different concentrations of oxygen in the environment affects the behavior of the simplest organisms, which, in its turn, can affect the results of toxicological analysis. Previously, this effect has not been studied. THE PURPOSE. The research of the effect of dissolved oxygen on toxicity indices obtained using of bacteria Escherichia coli (Migula) Castellani and Chalmers and ciliates Paramecium caudatum Ehrenberg, METHODS. Obtaining indices of toxicity is given with different concentrations of dissolved oxygen in the environment, which are distilled water and Bonaqua brand water, by the bioluminescent reaction of bacteria and chemotactic reaction of ciliates. RESULTS. With an increase in the concentration of dissolved oxygen in the environment, the bioluminescence of bacteria increases, therefore, the toxicity index decreases. No effect on ciliates is observed. CONCLUSION. It can be concluded that dissolved oxygen does not affect the biotest analysis using ciliates. When using bacteria as a test organism, an error occurs in the toxicity index.
Effect Of Cause Brand Fit On Brand Loyalty Through Moral Judgment On Aqua Consumers In Surabaya
Authors: Trimarjono Adrianto - , Nuraini Dewi 
Published: April 2024

This study aims to determine the effect of cause brand fit on brand loyalty and moral judgment. This research was conducted on consumers of AQUA brand drinking water products in the city of Surabaya using purposive sampling technique with the criteria of AQUA mineral water consumers who know the AQUA 1 to 10 social program. To test the hypothesis, the Amos 50 structural model is used. The results show that the cause of brand fit has a significant effect on brand loyalty, moral judgment has no significant effect on the cause of brand fit. Brand loyalty has a significant effect on moral judgment.
Konceptualizacja relacji między mową i pismem w zapiskach małych dzieci
Authors: Awramiuk Elżbieta 
Published: April 2024

Zapiski małych dzieci, które poznały już polskie litery, ale jeszcze nie rozpoczęły instytucjonalnej nauki bądź znajdują się na początku szkolnej edukacji, mają niestandardową postać graficzną. Celem artykułu jest wykazanie pozytywnych konsekwencji spojrzenia na takie zapisy jako na efekt intencjonalnego zastosowania pisma, znajdującego się między reprezentacją ortograficzną a transkrypcją fonetyczną. Ta zmiana perspektywy pozwala zrekonstruować sposoby dziecięcych konceptualizacji dotyczących pisma i jego relacji z mową. Dziecięce zapiski stanowią odbicie sposobów kategoryzacji dźwięków mowy oraz rekonstruowania systemu grafemicznego języka ojczystego, a także obrazują proces narastania świadomości językowej. Postrzeganie spotykanych w zapiskach dzieci odstępstw od standardowej ortografii w kategoriach prób odzwierciedlania wymowy, a nie błędów ortograficznych, stwarza szansę na efektywniejszą pomoc dzieciom w nabywaniu umiejętności czytania i pisania.
Polski system kształcenia nauczycieli – historia i współczesność
Authors: Latoch-Zielińska Małgorzata 
Published: April 2024

W artykule omówiono najważniejsze etapy formowania się współczesnego polskiego systemu kształcenia nauczycieli. Analiza sięga wczesnych lat osiemdziesiątych, kiedy to uchwalono ustawę Karta Nauczyciela określającą wymagania wobec osoby wykonującej zawód nauczyciela. Przepisy tej ustawy obowiązują do dziś. Następnie przywołano kolejne akty prawne i opisano ich praktyczne wdrożenia na przykładzie programów studiów z przygotowaniem pedagogicznym. Dokonano porównania różnych rozwiązań wynikających z uwarunkowań prawnych, ze standardów kształcenia nauczycieli i z programów kształcenia realizowanych na Uniwersytecie Marii Curie-Skłodowskiej w Lublinie. Omówione przykłady ukazują system przygotowania do wykonywania zawodu nauczyciela w Polsce. W podsumowaniu wskazano zalety i mankamenty przedstawionych rozwiązań.
Rozmowy o wierszach Wisławy Szymborskiej w kontekście nowej humanistyki
Authors: Jaskółowa Ewa 
Published: April 2024

W artykule poszukuje się drogi do zainteresowania uczniów poezją przez odnalezienie w niej problemów ważnych dla pokolenia nastolatków. Wybrane wiersze Wisławy Szymborskiej pokazane zostały jako medium, które może sprowokować pogłębioną refleksję o problemach żywo interesujących młodzież. Zaprezentowano sposoby rozmowy o utworach noblistki w kontekście takich kwestii, jak empatia, propaganda czy ekologia, zasugerowano jednocześnie, że można stawiać wiele pytań, sięgając do tej poezji.
High-risk state for psychosis: psychometric screening tools
Authors: Tsarkov I. E. , Novoselova A. E. , Zhilyaeva T. V. , Mazo G. E. 
Published: April 2024

The purpose of this article is to highlight current ideas available in the world literature about high-risk state for psychosis as a promising diagnostic stage for identification risk groups for the development of schizophrenia in the near future, as well as to allocate and characterize the tools for screening the highrisk state for psychosis.Identification and timely correction of risk factors is a relevant method for reducing the incidence of schizophrenia and improving the prognosis of the disease.As a result of the literature data analysis with a summary of the available results of original researches, systematic reviews and meta-analyses the data about currently available approaches to unified standardized diagnostics of high-risk state for psychosis are presented, and their comparative characteristic is carried out.According to the review of publications, none of the currently available tools fully covers all contemporary diagnostic approaches, and therefore, in order to achieve an optimal result in identifying a state of high risk of psychosis, the combined use of various tools seems to be the most reliable. In addition, the further development of available screening tools and their validation in the Russian population remains relevant.
Posttraumatic growth and related factors among relatives, caring for cancer patients. Systematic review (Part 2)
Authors: Shishkova A. M. , Bocharov V. V. , Tsygankova E. S. , Granovskaya E. A. 
Published: April 2024

Caring for cancer patients can have not only negative impact on the informal caregivers, but can also be a source of positive personality transformations in the challenging situation associated with cancer.Aim:identification and synthesis of data on posttraumatic growth (PTG) and socio-demographic, clinical and psychological factors associated with PTG in relatives, caring for patients with cancer.Methods:The review was conducted according to the statement of the PRISMA guidelines. The review used 2 search strategies: systematic electronic search in databases (Pubmed, Google Scholar, Cochrane, EBSCO, SAGE journals и eLIBRARY), manual search of articles in references lists of eligible articles.Results:Psychological factors are crucial in development of PTG. Perceived social support (especially within the family) and constructive emotion- and problem-focused coping (such as positive reframing coping) are among the factors contributing to the PTG. The data on the positive relationship of with the severity of stressful experiences and emotional distress among caregivers predominate in the analyzed studies. At the same time, there is a lack of agreement on the contribution of psychological distress to the development of PTG.Conclusion:Development of supportive social environment, constructive coping strategies training, increase of family satisfaction, work with existential and spiritual values, and creation of psychological readiness of caring relatives for loss in case of negative prognosis for patients’ survival should be considered as the main directions of psychological interventions aimed at facilitating PTG in relatives caring for cancer patients.
Interrelation between subjective assessment of mental state and perception of family relations by relatives caring for patients with addiction
Authors: Nechaeva A. I. , Shishkova A. M. , Gromyko D. I. , Bocharov V. V. , Ilyuk R. D. 
Published: April 2024

The addictive disorder often becomes a difficult experience for the all family. Studying the factors influencing the level of psychological distress of addicted patients’ relatives is necessary to create an effective system of psychological assistance for them.Purpose: to reveal the interrelations between the subjective assessment of the mental state and the perception of family relationships among relatives of patients with pathological gambling (PG) and relatives of patients with stimulant use disorder (SUD).Materials and methods. In a cross-sectional study 100 and 41 patients’ relatives were included in the PG and SUD groups respectively. The Symptom Checklist-90-Revised (SCL-90-R) and the Family Environment Scale (FES) was used as an assessment tools. Socio-demographic and clinical data were also collected.Results. The analysis of interrelations between the severity of psychopathological symptoms and the perception of family relationships in the studied groups determined both general and specific correlations. In both groups there are multiple negative correlations between the majority of SCL-90-R scales and the “Cohesion” scale (FES). The specific interrelations included, for example, multidirectional correlations between the “Expressiveness” scale (FES) and psychopathological symptoms scales of the SCL-90-R. Increased expressiveness in the PG group was associated with less severity of psychopathological symptoms and level of distress, and, on the contrary, a greater severity of psychological distress in respondents of the SUD group. Analysis of the correlations in PG compared to SUD showed greater predictability of the connections between psychopathological symptoms and perception of family relationships in the PG group. Thus, the indicators of psychopathological symptoms and psychological distress are negatively associated with parameters reflecting the perception of family cohesion, trust in intrafamily relations, social activity and family organization and, at the same time, have positive interrelations with the indicator of conflict in family relationships.Conclusion. The perception of the family cohesion function as the intrapsychic protection that facilitate the relatives’ adaptation in the emerging life situation, regardless of the form of patients’ addiction.
Total Flavonoid Levels in n-hexane and Ethyl Acetate Fractions of Rosmarinus officinalis L. Leaves and Their Antibacterial and Antioxidant Activities
Authors: Esati Ni Ketut , La Elisabeth Oriana Jawa , Sudiasih Ni Putu , Saniasih Ni Nyoman Dina 
Published: April 2024

The rosemary (Rosmarinus officinalis L.) is a plant of the Lamiaceae tribe that has not been widely studied regarding its pharmacological activity, known from previous studies to contain secondary metabolites of flavonoids. Flavonoids are phenol compounds with many pharmacological activities, including antibacterials and antioxidants. This study aims to determine the total flavonoid levels in R. officinalis leaves and their effect on antibacterial and antioxidant activities. This research began with the preparation of ethanol extract from R. officinalis leaves, then the fractionation of the extract produced n-hexane and ethyl acetate fractions. Total flavonoid levels were determined against both fractions by UV-Vis spectrophotometry. A test of the fraction’s antibacterial activity against Staphylococcus aureus was performed using the disc diffusion method. The antioxidant test is carried out by the DPPH method. The total flavonoid content of the ethyl acetate fraction is 47.437 ± 1.947%, higher than the n-hexane fraction. Test antibacterial and antioxidant activity showed more significant results in the ethyl acetate fraction than in the n-hexane fraction. In conclusion, the total flavonoid levels of ethyl acetate fraction are directly proportional to the antibacterial and antioxidant activities of R. officinalis leaves.