bluuebunny/crossref_metadata_2025 huggingface dataset:
Research in Nonlinearity of Surface Acoustic Wave Devices
Authors: Tian Yahui , Wang Litian , Wang Yuanyuan , Li Yang , Wu Haoxiang , Qian Lirong , Li Honglang , Wu Jinghui , Wang Ji
Published: November 2021

Surface acoustic wave (SAW) devices are one of the indispensable components in the radio frequency (RF) front-end of mobile phones. With the development of mobile communication technology, the requirements for linear specification of devices are more and more strict. Nonlinear distortions of SAW devices have a serious influence on the application of mobile RF modules. To satisfy the strict requirement of linearity of communication system, it is necessary to understand the generation mechanism of nonlinearity and study the accurate modeling, appropriate measurement methods, and nonlinear response elimination technology. In this paper, we summarize the research progress on the nonlinearity of SAW devices in recent years from four aspects: the generation mechanism, simulation methods, measurement system, and suppression technology. The nonlinear harmonics with the nonlinear Mason equivalent circuit model are simulated. Furthermore, harmonics and intermodulation signals of SAW filters are tested by the authors. Thanks to these research studies, it is of great significance to the development of future RF front-end modules with high linear SAW devices.
Mechano-Triboelectric Analysis of Surface Charge Generation on Replica-Molded Elastomeric Nanodomes
Authors: Ji Myung , Bazroun Mohammed , Cho In , Slafer W. , Biswas Rana , Kim Jaeyoun
Published: November 2021

Replica molding-based triboelectrification has emerged as a new and facile technique to generate nanopatterned tribocharge on elastomer surfaces. The “mechano-triboelectric charging model” has been developed to explain the mechanism of the charge formation and patterning process. However, this model has not been validated to cover the full variety of nanotexture shapes. Moreover, the experimental estimation of the tribocharge’s surface density is still challenging due to the thick and insulating nature of the elastomeric substrate. In this work, we perform experiments in combination with numerical analysis to complete the mechano-triboelectrification charging model. By utilizing Kelvin probe force microscopy (KPFM) and finite element analysis, we reveal that the mechano-triboelectric charging model works for replica molding of both recessed and protruding nanotextures. In addition, by combining KPFM with numerical electrostatic modeling, we improve the accuracy of the surface charge density estimation and cross-calibrate the result against that of electrostatic force microscopy. Overall, the regions which underwent strong interfacial friction during the replica molding exhibited high surface potential and charge density, while those suffering from weak interfacial friction exhibited low values on both. These multi-physical approaches provide useful and important tools for comprehensive analysis of triboelectrification and generation of nanopatterned tribocharge. The results will widen our fundamental understanding of nanoscale triboelectricity and advance the nanopatterned charge generation process for future applications.
Biocompatibility Study of a Commercial Printed Circuit Board for Biomedical Applications: Lab-on-PCB for Organotypic Retina Cultures
Authors: Urbano-Gámez Jesús David , Valdés-Sánchez Lourdes , Aracil Carmen , de la Cerda Berta , Perdigones Francisco , Plaza Reyes Álvaro , Díaz-Corrales Francisco J. , Relimpio López Isabel , Quero José Manuel
Published: November 2021

Printed circuit board (PCB) technology is well known, reliable, and low-cost, and its application to biomedicine, which implies the integration of microfluidics and electronics, has led to Lab-on-PCB. However, the biocompatibility of the involved materials has to be examined if they are in contact with biological elements. In this paper, the solder mask (PSR-2000 CD02G/CA-25 CD01, Taiyo Ink (Suzhou) Co., Ltd., Suzhou, China) of a commercial PCB has been studied for retinal cultures. For this purpose, retinal explants have been cultured over this substrate, both on open and closed systems, with successful results. Cell viability data shows that the solder mask has no cytotoxic effect on the culture allowing the application of PCB as the substrate of customized microelectrode arrays (MEAs). Finally, a comparative study of the biocompatibility of the 3D printer Uniz zSG amber resin has also been carried out.
Three-Dimensional Semantic Segmentation of Pituitary Adenomas Based on the Deep Learning Framework-nnU-Net: A Clinical Perspective
Authors: Shu Xujun , Zhou Yijie , Li Fangye , Zhou Tao , Meng Xianghui , Wang Fuyu , Zhang Zhizhong , Pu Jian , Xu Bainan
Published: November 2021

This study developed and evaluated nnU-Net models for three-dimensional semantic segmentation of pituitary adenomas (PAs) from contrast-enhanced T1 (T1ce) images, with aims to train a deep learning-based model cost-effectively and apply it to clinical practice. Methods: This study was conducted in two phases. In phase one, two models were trained with nnUNet using distinct PA datasets. Model 1 was trained with 208 PAs in total, and model 2 was trained with 109 primary nonfunctional pituitary adenomas (NFPA). In phase two, the performances of the two models were investigated according to the Dice similarity coefficient (DSC) in the leave-out test dataset. Results: Both models performed well (DSC > 0.8) for PAs with volumes > 1000 mm3, but unsatisfactorily (DSC < 0.5) for PAs < 1000 mm3. Conclusions: Both nnU-Net models showed good segmentation performance for PAs > 1000 mm3 (75% of the dataset) and limited performance for PAs < 1000 mm3 (25% of the dataset). Model 2 trained with fewer samples was more cost-effective. We propose to combine the use of model-based segmentation for PA > 1000 mm3 and manual segmentation for PA < 1000 mm3 in clinical practice at the current stage.
Biogenic Silver Nanoparticles: Synthesis and Application as Antibacterial and Antifungal Agents
Authors: Rozhin Artem , Batasheva Svetlana , Kruychkova Marina , Cherednichenko Yuliya , Rozhina Elvira , Fakhrullin Rawil
Published: November 2021

The importance and need for eco-oriented technologies has increased worldwide, which leads to an enhanced development of methods for the synthesis of nanoparticles using biological agents. This review de-scribes the current approaches to the preparation of biogenic silver nanoparticles, using plant extracts and filtrates of fungi and microorganisms. The peculiarities of the synthesis of particles depending on the source of biocomponents are considered as well as physico-morphological, antibacterial and antifungal properties of the resulting nanoparticles which are compared with such properties of silver nanoparticles obtained by chemical synthesis. Special attention is paid to the process of self-assembly of biogenic silver nanoparticles.
Development of a Microfluidic Device to Form a Long Chemical Gradient in a Tissue from Both Ends with an Analysis of Its Appearance and Content
Authors: Tokuoka Yasunori , Kondo Keiichi , Nakaigawa Noboru , Ishida Tadashi
Published: November 2021

Tissue assays have improved our understanding of cancers in terms of the three-dimensional structures and cellular diversity of the tissue, although they are not yet well-developed. Perfusion culture and active chemical gradient formation in centimeter order are difficult in tissue assays, but they are important for simulating the metabolic functions of tissues. Using microfluidic technology, we developed an H-shaped channel device that could form a long concentration gradient of molecules in a tissue that we could then analyze based on its appearance and content. For demonstration, a cylindrical pork tissue specimen was punched and equipped in the H-shaped channel device, and both ends of the tissue were exposed to flowing distilled and blue-dyed water for 100 h. After perfusion, the tissue was removed from the H-shaped channel device and sectioned. The gradient of the blue intensity along the longitudinal direction of the tissue was measured based on its appearance and content. We confirmed that the measured gradients from the appearance and content were comparable.
Experimental Investigation of Porous and Mechanical Characteristics of Single-Crack Rock-like Material under Freeze-Thaw Weathering
Authors: Yu Songtao , Ke Yuxian , Deng Hongwei , Tian Guanglin , Deng Junren
Published: November 2021

Freeze-thaw weathering changes the pore structure, permeability, and groundwater transportation of rock material. Meanwhile, the change in rock material structure deduced by frost heaving deteriorates mechanical properties of rock material, leading to instability and insecurity of mine slopes in cold regions. In this paper, rock-like specimens containing prefabricated cracks at different angles and having undergone various freeze-thaw cycles are used as the object. Their pore structure, compressive mechanical properties, strain energies, failure characteristics, and the connection between pore structure and mechanical properties are analyzed. Results show that the porosity, spectrum area of mesopores, and spectrum area of macropores increase with the increase in freeze-thaw cycles, while crack angle shows no obvious influence on pore structure. Peak stress and elastic modulus drop with the increase in freeze-thaw cycles, while peak strain shows an increasing trend. Peak stress and elastic modulus decrease in the beginning, and then increase with the increase in crack angle, while peak strain shows a reverse trend. Elastic strain energy and pre-peak strain energy drop with the increase in freeze-thaw cycles. Elastic strain energy decreases first, and then increases with the increase in crack angle. The correlation between the spectrum area of macropores and elastic modulus is the strongest among different pores. Elastic modulus and peak stress decrease with the increase in macropore spectrum area, and peak strain increases with the increase in macropore spectrum area.
Cost management in agribusiness organizations
Authors: Tunin S. A. , Frolov A.V.
Published: November 2021

The article presents the results of the development and testing of cost management methods in agricultural organizations. The purpose of the activity of any organization that has set itself the task of extracting profit is its growth and increasing the efficiency of its activities. As a rule, all organizations strive to maximize their profits while minimizing the costs incurred. In modern economic conditions, such an approach is possible only with a properly constructed effective cost management system. Rational use of available resources by organizations of the agro-industrial complex with proper cost management will allow organizations to be competitive in the market and carry out their activities in the foreseeable future. The subject of the study is the cost management accounting system, the object of the organization of the agro-industrial complex of the Stavropol Territory. The information base was the forms of specialized reporting of agricultural organizations of the Stavropol Territory. The scientific novelty of the research consists in the development of a methodology for the cost management system in the agro-industrial complex organizations of the Stavropol Territory.
Analysis of the resource potential of digitalization in Russian agriculture
Authors: Kagirova M.V.
Published: November 2021

The article is devoted to the study of the state and development features of the components of the resource potential of agricultural production from the point of view of the possibility of using digital technologies in the production process. The information infrastructure of rural areas, production resources, sources of funds for their modernization are considered as key factors. The analysis of the composition and structure of resources in dynamics is carried out, the reasons for the lagging of the pace of digitalization in agriculture from other industries and activities are revealed. In particular, the low level of development of digital competencies of the personnel of agricultural enterprises, low interest in professional development were noted; a high share of the imported component of production resources in the agricultural sector, which leads to high costs and, together with low incomes, makes it difficult to modernize technologies.
Economic and statistical analysis of labor resources of agricultural organizations according to departmental reporting
Authors: Dashieva B. Sh.
Published: November 2021

The article provides an economic and statistical analysis of labor resources by types of agricultural organizations (AO), allocated taking into account both the provisions of the Federal Law 209-FZ, dated 24 July 2007, “On the development of small and medium-sized businesses in the Russian Federation”, and specialization of agricultural organizations i.e., by production type (based on the author’s approach). The subject of the research is the system of statistical indicators of the availability, composition and, use of labor resources. The object is the aggregate of agricultural organizations of the Lipetsk region. The information base of research is the departmental reporting forms “On the financial and economic condition of agricultural producers in 2019”. The scientific novelty of the research consists in the substantiation of the system of indicators and the development of methods of analysis of labor resources by types of agricultural organizations, as well as in assessing the influence of the capital-labor ratio on the level of labor productivity based on the construction of the power functions.
MOSCOW INTERNATIONAL SYMPOSIA ON SOLAR SYSTEM RESEARCH (10M-S3 AND 11M-S3) REPORTS REVIEW. Part 1. Mars exploration
Authors: EVDOKIMOV Roman A.
Published: November 2021

A review of the reports of the last two Moscow International Symposia on Solar System Research has been completed. In the first part of the review, 43 reports of the main session of the "Mars" section are considered. The works of leading experts in the field of planetary science cover a wide range of scientific and applied problems - from the study of the geological history and climate of Mars, the search for traces of life and subsurface water reserves, to new technologies in planetary research, mission planning, as well as monitoring solar activity and radiation conditions in the interplanetary space, orbit and the surface of Mars. The data obtained in the last two decades has made it possible to significantly advance in understanding the nature of Mars, but many unresolved questions remain regarding the climate in the early era, the existence of the Martian oceans in the past, biological and geological activity. The scientific results obtained by unmanned spacecraft should be fully taken into account in the development of manned deep space exploration programs.
Key words: Solar system, planetology, international symposium, deep space, automatic interplanetary stations, Mars, Moon, reports review
The Kidney Diet Challenge: An Experiential Educational Experience
Authors: Norouzi Sayna , Liu Kyle S. , Bustamante Edlyn , La Ton , Mitch William E. , Pivert Kurtis , Staggers Kristen A. , Shusterman Blake , Yuan Christina M. , Raghavan Rajeev
Published: November 2021

Key Points

Participating in a Kidney Diet Challenge can improve your ability to educate your patients with CKD about dietary modification.

The Kidney Diet Challenge can be recreated with freely available webinars and our supplemental document.

Social media improved our ability to recruit more participants in the Kidney Diet Challenge and made the experience more enjoyable.

Background

Health care providers who care for patients with CKD must be able to provide effective counseling about a kidney-friendly diet. Nutrition is underemphasized in medical curricula, and the kidney diet is one of the most challenging diets. We hypothesized that participation in an experiential educational program in kidney diet would result in improved knowledge of the underlying principles behind it and provide concrete examples of how to explain this diet to patients.

Methods

The first part of this study was a knowledge assessment administered to all US nephrology fellows during the 2020 National Board of Medical Examiners Nephrology In-Training Examination. We later opened the assessment to a broader, global audience via social media. Respondents included trainees, practicing nephrologists, dieticians, and other health professionals. Participants self-identified willingness to participate in the second part of the study, the Kidney Diet Challenge (KDC). The 5-day challenge included daily webinars by experts in nutrition. Daily surveys captured self-reported adherence to the diet. Social media was used to engage with participants. All participants received a follow-up knowledge assessment.

Results

Among the nephrology fellows (n=317), the median pretest score was 2 out of 5 (40%) questions correct, and results did not differ by year of training (P=0.31). Of the participants (n=70) who completed the 5-day challenge and responded to the post-challenge survey, the distribution of the number of correct answers improved after the KDC (median [25th, 75th percentile]: 3 [2, 3] versus 3 [2, 4]; P<0.001). Statistics from our official hashtag for this study (#kidneydietchallenge) showed that we achieved 406,241 reaches and 1,004,799 impressions, with a total of 974 posts using this hashtag.

Conclusions

The KDC is an immersive, experiential educational tool that enabled a global population to learn how to counsel their patients better about adherence to a complex kidney diet.
Proposing a Method for Assessing Fuel Consumption and Pollutants Emissions with the Use of Continuously Variable Transmission in Town Cars
Authors: Leonardo Serfert Junior  , Thiago B. Muraria  , Lilian Lefol Nani Guarieiro
Published: November 2021

The 21st century brings countless social, economic, environmental, and technological challenges to humanity and, to face them, the United Nations (UN) created the Sustainable Development Goals (SDGs). The auto industry, which is part of the private sector, aims to reach them. In this context, this study aims to evaluate the consumption and emissions of pollutants by using an automatic transmission of the CVT (Continuously Variable Transmission) type concerning the automatic transmission of the "Planetary" type. This study will be based on the Consumption/Energy Efficiency tables, published annually by INMETRO (National Institute of Metrology, Quality, and Technology) and whose data will be processed and evaluated using the Quik Sense Software. Thus, the work aims to appraise the advantages of vehicles with automatic transmission of the CVT type about fuel consumption, energy efficiency and emissions, in markets such as Brazil, where these vehicles use ethanol or a mixture of gasoline with up to 27 as fuel % Ethanol. This research can contribute to studies of emission control and approval, benefiting the automotive industry in general, government agencies, the environment, the economy, and society, contributing to the UN's SDGs achievement.
Projekt „S-Bahn Bodensee“ – Positionierung, Kommunikation und Vermarktung
Authors: Fritschi Werner , Frank Patrick
Published: November 2021

Die Geographie, der heterogen entwickelte Bodenseeraum und die multinationale Anrainerschaft zeigen dem Verkehrssektor die Grenzen auf. Um im ÖPNV die angestrebten Entwicklungsziele zu erreichen, reicht eine grenzüberschreitende Angebotsplanung nicht aus. Das Projekt „S-Bahn Bodensee“ soll im Hinblick auf Positionierung, Kommunikation und Vermarktung die Kräfte über die Landes- und Unternehmensgrenzen hinweg bündeln. Nur so hat der öffentliche, grenzüberschreitende Verkehr eine realistische Chance die ungenutzten Potentiale auszuschöpfen.
Bieterwettbewerb Klimaneutralität - Grenzüberschreitende Verkehre in realitätsfernen politischen Programmen
Authors: Radermacher Franz Josef
Published: November 2021

Der Text betrachtet Verkehr und Mobilität als Teil der internationalen Energie- und Klimathematik. Er beschreibt, weshalb der in Deutschland verfolgte Zugang zu den Themen in seiner auf das Nationale fixierten Betrachtungsweise zur Lösung der bestehenden Probleme fast nichts beitragen kann. Leider werden durch diese Politikansätze aber erhebliche Kollateralschäden verursacht, die die Mobilitätszukunft in Deutschland und Europa erheblich belasten und zu großen Wohlstandsverlusten führen können. Wie problemadäquate, alternative Ansätze aussehen könnten, wird anhand der Logik von Global Energy Solutions e. V. beschrieben.
Balıklardan İzole Edilen Bazı Bakteriyel Patojenlere Karşı Tannik Asidin Antibakteriyal Etkisinin Belirlenmesi
Authors: TEKİN Neşe , BALTA Fikri
Published: November 2021

Bu çalışmada, bitkilerden doğal ekstraksiyon işlemiyle elde edilen ve su ürünleri yetiştiriciliğinde tatlandırıcı yem katkı maddesi olarak kullanılan Silvafeed TSP (tannik asit) antimikrobiyal duyarlılığı araştırıldı. Balıklarda önemli ekonomik kayıplara neden olan Aeromonas hydrophila, Pseudomonas fluorescens, Yersinia ruckeri ve Vibrio anguillarum izolatlarına karşı tannik asitin farklı konsantrasyonlardaki dilüsyonlarının antimikrobiyal duyarlılığı tespit edildi. Çalışmada kullanılan bakterilerin antibiyogram test sonuçlarına göre Ps. fluoresens gentamisin ve doksisiklin hariç hepsine dirençli olduğu, diğer bakterilerin (A. hydrophila, E. coli, V. anguillarum ve Y. ruckeri) ise ampisilin hariç diğer antibiyotiklere karşı hassas olduğu tespit edildi. Tannik asitin beş farklı bakteri türlerine karşı antimikrobiyal hassasiyet test sonuçlarına göre, tannik asitin 125 µg/ml üzerindeki konsantrasyonları Ps. fluorescens ve V. anguillarum'a duyarlı olduğu tespit edildi. Aynı çalışmada E. coli, A. hydrophila ve Y. ruckeri ise 250 µg/ml üzerindeki konsantrasyonların hassas olduğu tespit edildi. Ps. fluoresens izolatının florfenikol (FFC)’ün 2000 µg/ml hariç bütün konsantrasyonları ve E. coli izolatının sadece FFC’nin 31,25 µg/ml konsantrasyonuna dirençli olmasına karşın doksisiklin beş bakteri izolatına karşı duyarlı olduğu belirlendi. Tannik asitin 31.25 µg/ml konsantrasyonun ve Ps. fluorescens ve V. anguillarum dirençli iken, 62.5 µg/ml konsantrasyonuna ise A. hydrophila ve Y. ruckeri'nin dirençli olduğu belirlendi. Tannik asitin MİK değerleri A. hydrophila, Ps. fluoresens, V. anguillarum ve Y. rukeri için sırasıyla, 250 µg/ml, 31,25 µg/ml, 500 µg/ml ve 125 µg/ml olarak tespit edildi.
Distilasi Azeotrop Campuran Etanol-Air untuk Meningkatkan Kadar Etanol menggunakan Entrainer Etil Asetat
Authors: Indarti Retno , Manfaati Rintis , Marlina Ari , Keryanti
Published: November 2021

Bioetanol yang dapat digunakan sebagai campuran bahan bakar alternatif harus memiliki kadar 99%, sehingga perlu dilakukan proses pemurnian terhadap campuran etanol yang masih mengandung air. Distilasi sederhana campuran etanol-air menggunakan bahan tambahan (entrainer) etil asetat dapat dilakukan untuk meningkatkan kadar etanol. Pada penelitian ini, pemurnian etanol dilakukan dengan proses distilasi azeotrop pada tekanan atmosfer dan suhu penangas air sebesar 70-75oC. Komposisi umpan yang terdiri dari campuran etanol yang mengandung air dan etil asetat sebagai entrainer. Penelitian dilakukan sebanyak 5 run dengan variasi penambahan etil asetat ke dalam umpan sebanyak 10% v/v, 20% v/v, 30% v/v, 40% v/v dan 50% v/v. Hasil penelitian yang diperoleh yaitu penambahan etil asetat ke dalam umpan yang menunjukkan kadar etanol tertinggi dengan waktu yang paling singkat ialah pada penambahan etil asetat sebagai entrainer yaitu sebesar 30% v/v, yang terdiri dari campuran 15 ml etil asetat dan 35 ml etanol 80%. Hasil analisis yang dilakukan dengan kromatografi gas diperoleh konsentrasi etanol sebesar 99.80% dan waktu distilasi selama 90 menit
Sintesis dan Karakterisasi Lihium Iron Phosphate (LiFePO4) Menggunakan Metoda Solid State Reaction Sebagai Katoda Pada baterai Lithium-Ion
Authors: Putra Oki , Fadila Rusdan , Andrijanto Eko , Suminar Dian Ratna
Published: November 2021

ABSTRAK

 Perkembangan baterai tak luput dari kebutuhan energi yang kian meningkat. Meskipun sumber energi tidak terpaku pada baterai, namun baterai banyak diminati karena dapat menampung cukup banyak energi, relatif aman, dan bersifat portable. Penelitian ini bertujuan untuk mensintesa dan mengetahui karakteristik salah satu jenis katoda baterai lithium-ion yaitu Lithium Iron Phosphate (LiFePO4) dengan variasi mol reagent berdasarkan perbandingan stoikiometri dan suhu proses kalsinasi 600°C, 700°C, dan 800°C selama 3x3 jam menggunakan metode solid state reaction dengan Li2SO4.H2O, FeSO4.7H2O, dan KH2PO4 sebagai reagent. Produk hasil kalsinasi 800°C dengan variasi 0.1 mol dijadikan sampel untuk dianalisa dan dikarakterisasi karena memiliki penurunan berat endapan BaSO4 tertinggi. Hasil karakterisasi menggunakan FTIR menunjukan gugus fungsi P-O yang cukup kuat, sementara hasil karakterisasi menggunakan SEM/EDX menunjukan partikel yang terbentuk memiliki ukuran sekitar 160nm hingga 14µm dan terdapat atom S yang merupakan impurities dalam produk. Pola difraksi hasil uji XRD menunjukan terbentuknya sejumlah fasa seperti LiFePO4, LiFeP2O7, dan Li3PO4.

 

ABSTRACT

 The development of batteries is inseparable from the increasing energy needs. Although energy sources are not available for batteries, batteries are in great demand because they can store a lot of energy, are relatively safe, and are portable. This study aims to synthesize and determine the characteristics of one type of lithium-ion battery cathode, namely Lithium Iron Phosphate (LiFePO4) with various mole reagents based on stoichiometric ratios and calcination process temperatures of 600oC, 700oC, and 800oC for 3x3 hours using the solidstate reaction method with Li2SO4.H2O, FeSO4.7H2O, and KH2PO4 as reagents. The 800oC calcined product with 0.1 mol variation was sampled for analysis and characterization because it had the highest weight loss of BaSO4 deposits. The results of characterization using FTIR showed that the functional group P-O are quite strong, while the results of characterization using SEM/EDX showed that the particles formed had a size of about 160nm to 14µm and contained S atoms which were impurities in the product. The diffraction pattern of XRD test results shows the formation of phase numbers such as LiFePO4, LiFeP2O7, dan Li3PO4.
Pemurnian Kitosan Hasil Fermentasi Limbah Cangkang Kepiting Menggunakan Pelarut Asam Asetat
Authors: Muhlis Holis , Pradana Alfariz Dwi , Leoanggraini Unung
Published: November 2021

Kitosan dapat diperoleh melelaui proses fermentasi yang dilakukan secara sekuensial menggunakan bakteri Lactobacillus acidophilus dan Bacillus subtilis. Salah satu upaya peningkatan kualitas produk kitosan dapat dilakukan dengan proses pemurnian melalui metode ekstraksi padat cair dengan pelarut asam.  Tujuan penelitian ini adalah untuk mengetahui pengaruh variasi rasio kitosan hasil fermentasi dengan pelarut asam asetat 1% terhadap tingkat kemurnian kitosan yang dihasilkan. Proses pemurnian kitosan dilakukan dengan variasi rasio kitosan hasil fermentasi terhadap pelarut asam asetat 1% pada perbandingan 1:60, 1:80, 1:100 dan 1:120 (b/v). Hasil penelitian menunjukkan bahwa kondisi optimum proses pemurnian kitosan diperoleh pada rasio 1:60 dengan nilai kadar air, kadar abu, kadar protein, kelarutan dalam asam asetat 1% dan derajat deasetilasi berturut-turut sebesar 24,3%, 58,6%, 9,2%, 93,3% dan 75,5%.
Klasifikasi Tekstur Kematangan Buah Jeruk Manis Berdasarkan Tingkat Kecerahan Warna dengan Metode Deep Learning Convolutional Neural Network
Authors: Yanto Budi , Fimawahib Luth , Supriyanto Asep , Hayadi B.Herawan , Pratama Rinanda Rizki
Published: November 2021

Sweet orange is very much consumed by humans because oranges are rich in vitamin C, sweet oranges can be consumed directly to drink. The classification carried out to determine proper (good) and unfit (rotten) oranges still uses manual methods, This classification has several weaknesses, namely the existence of human visual limitations, is influenced by the psychological condition of the observations and takes a long time. One of the classification methods for sweet orange fruit with a computerized system the Convolutional Neural Network (CNN) is algorithm deep learning to the development of the Multilayer Perceptron (MLP) with 100 datasets of sweet orange images, the classification accuracy rate was 97.5184%. the classification was carried out, the result was 67.8221%. Testing of 10 citrus fruit images divided into 5 good citrus images and 5 rotten citrus images at 96% for training 92% for testing which were considered to have been able to classify the appropriateness of sweet orange fruit very well. The graph of the results of the accuracy testing is 0.92 or 92%. This result is quite good, for the RGB histogram display the orange image is good
Praktik Leasing di Indonesia dalam Tinjauan Hukum Islam
Authors: Azwarfajri Azwarfajri  , Ainun Najib
Published: November 2021

The development of leasing in Indonesia was in line with the development of banking, both bank and non-bank institutions. This development was certainly inseparable from the demands and needs of the community that they cannot fulfil on their own. The emerging financing institutions carry out activities in the form of providing funds or capital goods by not withdrawing funds directly from the public. The existence of leasing as a means for developing investment financing and empowering the community's economy was still considered to have several problems. Although the practice of leasing in Islamic law was equated with the contract of ijarah vomitiyah bi at-tamlik, in practice in Indonesia the process of leasing agreement was considered fasid, because there was an element of ambiguity in the contract agreement as regulated in the provisions of multi-aqad agreements, both conventional and sharia.  This research will discuss the practice of financing in the community categorized as leasing under the provisions of applicable law and a review of Islamic law on the implementation of such leasing.
Structure of social support for women with depressive disorders and macrosocial, mesosocial and microsocial maladaptation of different expression
Authors: Isakov R.I.
Published: November 2021

The structure of social support in women with depression of different genesis and different severity of macrosocial, mesosocial and microsocial maladaptation was studied to determine further targets of differentiated psychosocial rehabilitation of patients of this group. 252 women with depressive disorders were examined: 94 women were with psychogenic disorders, 83 women were with endogenous disorders and 75 patients were with organic depression. 48 women did not show signs of psychosocial maladaptation, the other 204 showed manifestations of macrosocial, mesosocial and microsocial maladaptation of varying severity. The study was conducted using clinical-psychopathological and psychodiagnostic methods. The study revealed a decrease in the level of social support of family, social support of friends and social support of significant others as the degree of psychosocial maladaptation of any level (macrosocial, mesosocial or microsocial). The structure of the ratio of social support varied depending on the degree of macrosocial, mesosocial and microsocial psychosocial maladaptation: in general, in the absence of signs of psychosocial maladaptation, the highest level was social support of family, lower level was social support of significant others, and the lowest level was social support of friends; with mild psychosocial maladaptation, the highest level was social support of significant others, the lowest level was the social support of friends, and the lowest level was social support of family; with moderate and severe psychosocial maladaptation, the highest was the level of social support of friends, the lowest level was social support of significant others, and the lowest level was the social support of family. The identified patterns should be taken into account in the development of treatment and rehabilitation and preventive measures for depressive disorders in women.

Keywords: depressive disorders, macrosocial maladaptation, mesosocial maladaptation, microsocial maladaptation, social support, women.
Análisis de acidez y basicidad en compuestos orgánicos
Authors: Schiavoni María de las Mercedes , Laurella Sergio Luis , Caputo Maricel
Published: November 2021

El presente texto tiene como objetivo abordar el tema de la acidez y basicidad de compuestos orgánicos, uno de los más importantes en la Química Orgánica, ya que muchas de las reacciones y procesos que ocurren tanto en dicha disciplina como en la Química de los seres vivos dependen de las propiedades ácido–base de los compuestos. No está demás aclarar que, en la vida cotidiana, muchas de las situaciones que se nos presentan pueden ser planteadas también desde esta propiedad de los compuestos.
Erratum
Authors: Figueroa-Giralt Manuel Gonzalo
Published: November 2021

En el artículo publicado “Ascitis pancreática traumática, manejo conservador:Reporte de un caso. Rev. Cir. 2021;73(5):610-613. DOI: http://dx.doi.org/10.35687/s2452-454920210051070”, existen errores en las figuras. La Figura 1ª debería titularse Figura 1, la Figura 1b debería titularse Figura 2 y su legenda debiese ser corregida por errores en la descripción, finalmente la Figura 2 y su legenda deberían ser eliminadas. El Comité Editorial de Revista de Cirugía quisiera corregir los detalles de erroneos de las mismas. El Comité Editorial se disculpa con los autores y lectores por cualquier inconveniente que esto causase. La versión corregida del artículo y sus figuras está en la siguiente referencia: Rev. Cir. 2021;73(5):610-613. DOI: http://dx.doi.org/10.35687/s2452-454920210051070
ENGAGING CIVIL SOCIETY RESOURCES TO COMBAT THE THREATS OF THE CORONA CRISIS IN TIMES OF DIGITAL TRANSFORMATIONS
Authors: PANKOVA Oksana , KASPEROVICH Oleksandr
Published: November 2021

In the context of Ukraine’s European integration aspirations, the authors summarise the results of European research on challenges, trends, obstacles and opportunities for civil society organizations (CSOs) in European countries in times of the COVID-19 pandemic. The considerable potential of digitalization is highlighted in terms of creating a new environment for CSO operation, where sustainability would be ensured even in the face of health threats or force majeure. This is the basis the authors use to establish the context within which they explore the problems and opportunities of engaging civil society resources in Ukraine to stabilise the socio-economic conditions in the country. Having systemised and generalised the outcomes of national and expert surveys conducted in Ukraine, the authors reveal: (1) the main trends of changes in the operation of Ukrainian civil society organizations (CSOs) in the current conditions and the public opinion regarding these issues; (2) the impact of the corona crisis on the operation of Ukrainian CSOs and civil engagement; (3) problems and opportunities of developing institutional support for engaging the potential of civil society (CSOs) in digital transformations in Ukraine and in CSOs using modern digital and information and communication technologies. The conducted investigation makes it possible to present a comprehensive assessment of the current conditions and prospects for engaging the resources of Ukrainian CSOs in combating the threats of the corona crisis and future post-pandemic recovery, as well as to set priorities in the development of CSOs in times of digitalization.
ACHIEVEMENTS AND CHALLENGES OF UKRAINE’S EUROPEAN INTEGRATION
Authors: GRYTSENKO Andriy , BORZENKO Оlena , BURLAY Tetyana
Published: November 2021

The issues of Ukraine’s development within the framework of the European integration project and its transformation under the influence of the convergence processes of the EU economies, Brexit, and the search for a new «European identity» are studied. The influence of European integration on the dynamics of social and macroeconomic development of Ukraine after the signing of 2014 and the implementation of the Association Agreement with the EU is revealed. The main achievements of Ukraine’s European integration are highlighted, which are mainly related to the improvement of its institutional environment, the formation of civil society, the growth of trade between Ukraine and the EU, increasing Ukraine’s capacity to overcome internal crises, including those related to the ongoing armed conflict. Donbass and modernization of the national system of public administration. Emphasis is placed on the key challenges of Ukraine’s European integration, which must be in the field of view of the national government in order to effectively overcome them through the tools of state regulation. It is established that the most serious challenges of Ukraine’s European integration are related to the problems of economic growth, deindustrialization, structural and dynamic disparities in foreign trade, macro-financial stability, as well as the inhibition of convergence between Ukraine and the EU. The key institutional challenges related to the implementation of the Agreement and institutional crises in the development of the EU have been identified. It is substantiated that Ukraine needs the reconstruction of the national economy in accordance with the new architecture in Europe and the world, which provides, in particular, the restoration of Ukraine’s own identity and economic subjectivity on the basis of social justice, which will ultimately contribute to its socio-economic convergence and full integration with the EU.
On Ensuring the Quality of Life in the Innovative Economy of St. Petersburg from the Strategic Perspective
Authors: Okrepilov V. V. , Gagulina N. L.
Published: November 2021

Aim. The presented study aims to analyze quality-of-life estimates obtained for St. Petersburg using a theoretical and methodological approach developed based on the concept of the qualitydriven economy.Tasks. The authors consider the concept of the quality of life in the context of the Strategy of socio-economic development of St. Petersburg until 2035; measure and analyze quality-of-life indicators based on the concept of the quality-driven economy.Methods. A major part of this study is based on the methodology of the general scientific philosophical approach and uses such methods of interdisciplinary research as modeling, system analysis, and others. The quality of life is measured on the theoretical and methodological basis of the quality-driven economy using the methodology developed at the Institute of Problems of Regional Economics (IPRE) of the Russian Academy of Sciences.Results. Ensuring a high quality of life for the population of the region is a priority goal of the functioning and development of the economy of St. Petersburg. To this end, it is crucial to use strategic opportunities for economic growth and regional development in achieving the social well-being of the region’s population. Different views on the understanding of the quality of life as the main strategic priority of the innovative development of St. Petersburg are analyzed, and quality-of-life estimates are obtained for St. Petersburg, the Northwestern Federal District (NWFD), and the Russian Federation as a whole. The role of St. Petersburg in enhancing the competitiveness of the economy of the Northwestern Federal District and Russia in the context of innovative development is shown.Conclusions. Quality of life is an integral part of the strategic planning system in the innovative economy of St. Petersburg. The quality-driven economy provides a reliable theoretical and methodological basis for making allowance for the quality of life at the highest levels of regional government. The analysis based on the results of calculations shows a correlation between the system of quality indicators of the methodology for measuring the quality of life to increase regional management efficiency developed at the IPRE RAS and several indicators of the strategic planning system of socioeconomic development in St. Petersburg. Thus, the application of quality-driven economy principles in the innovative economy of St. Petersburg makes it possible not only to set the initial conditions for achieving the necessary quality of life, but also to develop a mechanism that would ensure the achievement of this goal in the future.
Sistem Pendukung Keputusan Sistem Pendukung Keputusan Untuk Menentukan Ekstrakurikuler Atletik Berdasarkan Bakat Siswa Menggunakan Metode Profile Matching
Authors: Basuki Agnes , Sokibi Petrus , Putri Tiara Eka
Published: November 2021

Prestasi atletik di SMP Negeri 17 Kota Cirebon harus dipertahankan dengan terus menggali dan mencari siswa yang memiliki potensi dan bakat di bidang atletik dari tahun ke tahun melalui kegiatan ekstrakurikuler. Namun terkait hal tersebut, tidak mudah bagi pihak sekolah untuk menentukan cabang olahraga mana yang sesuai dengan bakat siswa. Proses penentuan atletik siswa dilakukan melalui hasil tes masing-masing siswa. Hasil tes cenderung kurang objektif karena tidak ada faktor pendukung lainnya. Oleh karena itu, diperlukan suatu sistem yang dapat digunakan sebagai penelusuran dan penentuan bakat atletik siswa. Sistem Pendukung Keputusan dapat menjadi solusi untuk mempermudah dalam menentukan siswa atletik. Dengan adanya sistem ini diharapkan dapat memberikan informasi hasil penentuan kegiatan ekstrakurikuler atletik secara objektif. Penelitian ini menerapkan metode Profile Matching untuk menentukan ekstrakurikuler atletik siswa, dan sistem dibuat dalam bahasa pemrograman PHP dan SQL database menggunakan MySQL. Pada tahap perancangan sistem digambarkan menggunakan diagram UML. Hasil akhir dari penelitian ini diperoleh hasil penentuan cabang ekstrakurikuler atletik siswa dengan persentase keberhasilan perhitungan 100%.
SISTEM PAKAR PENYAKIT BUAH KAKAO UNTUK PENINGKATAN HASIL PANEN KAKAO MENGGUNAKAN METODE CASE BASE REASONING (CBR) BERBASIS WEB MOBILE
Authors: Hafiz Aliy , Verawati Verawati
Published: November 2021

Kakao merupakan salah satu komoditas pertanian yang menjadi penyumbang perekonomian yang menjadi andalan bagi negara Indonesia. Hal ini karena Indonesia merupakan penghasil biji kakao (kakao beans) terbesar ketiga di dunia dengan pangsa produksi sebesar 15,68%. Salah satu faktor yang menyebabkan rendahnya kualitas cokelat di Indonesia adalah karena perkebunan kakao di Indonesia selalu diancam oleh hama dan penyakit tumbuhan. Serangga merupakan jenis hama yang jumlahnya terbesar untuk tanaman kakao di Indonesia lebih dari 130 spesies. Kurangnya informasi yang diketahui oleh pihak perkebunan kakao tentang jenis penyakit yang menyerang tanaman cokelat, menyebabkan banyaknya tanaman cokelat yang tidak tertangani dengan benar. Hal ini mengakibatkan banyak tanaman cokelat yang seharusnya bisa diselamatkan menjadi mati dan kualitas cokelat tersebut menurun. Berdasarkan uraian di atas, pihak perkebunan cokelat membutuhkan sebuah sistem pakar yang dapat memberikan informasi mengenai penyakit yang menyerang tanaman kakao dan memberikan solusi untuk menangani penyakit tersebut. Sistem pakar merupakan paket perangkat lunak atau paket program komputer yang ditunjuk sebagai penyedia nasehat dan sarana bantuan dalam memecahkan masalah dibidang spesialisasi tertentu seperti sains, perekayasaan, matematika, kedokteran, pendidikan dan sebagainya. Tujuan praktis dari sistem pakar ini adalah membuat komputer semakin berguna bagi manusia. Adapun metode yang digunakan dalam membangun sistem pakar ini adalah metode case base reasoning (CBR). Kemudian metode pengembangan sistem yang digunakan adalah extreme programmingpenelitian yang dihasilkan yaitu aplikasi sistem pakar  berbasis web mobile yang membantu petani dalam memecahkan masalah dalam pertanian kakao.
REKAYASA PERANGKAT LUNAK PERHITUNGAN HARGA POKOK PRODUKSI METODE FULL COSTING PADA UMKM MITRA CAKE DI BANDAR LAMPUNG
Authors: . Pitrawati , Sanjaya Arif
Published: November 2021

UMKM Mitra Cake adalah salah satu UMKM yang bergerak dibidang produksi Makanan  kue di Bandar Lampung. Dalam proses perhitungan harga pokok produksi masih dilakukan dengan cara menghitung manual, sehingga ketepatan hitungan yang kurang akurat dan berakibat pada ketidaktepatan dalam perhitungan sisa hasil usaha, oleh karena itu Mitra Cake membutuhkan aplikasi yang mampu menghitung dan mengolah data harga pokok produksi yang tepat sehingga tidak salah dalam penentuan harga pokok produksi.

.Tujuan penelitian ini untuk menghasilkan aplikasi perhitungan harga pokok produksi pada UMKM Mitra cake, dimana dalam Rekayasa Perangkat Lunaknya  menggunakan bahasa pemrograman PHP, Database management system menggunakan MySql dengan teknik rancangan menggunakan UML dalam bentuk Use Case, Class Diagram, Activity Diagram

 Hasil dari penelitian ini menghasilkan aplikasi perhitungan harga pokok produksi yang dapat mengelola pencatatan produksi dalam perhitungan harga pokok produksi, menghasilkan laporan harga pokok produksi, sehingga ketepatan hitungan harga pokok produksi lebih akurat dan menghindari dari kerugian produksi dimasa mendatang
AUDIT PELAYANAN SISTEM RUJUKAN ONLINE PUSKESMAS MENGGUNAKAN FRAMEWORK COBIT 5.0
Authors: Nurmayanti Nurmayanti , Parida Merri , Ngajiyanto Ngajiyanto , Anzalna Ina
Published: November 2021

Rujukan online merupakan sistem yang menjembatani antara Fasilitas Kesehatan Tingkat Pertama (FKTP) dengan rumah sakit sebagai Faskes penerima rujukan. Tujuannya untuk kemudahan dan kepastian peserta dalam memperoleh layanan di rumah sakit. Layanan disesuaikan dengan kompetensi, jarak dan kapasitas rumah sakit tujuan rujukan berdasarkan kebutuhan medis pasien. Metode yang dilakukan pada penelitian ini menggunakan kerangka kerja COBIT 5.0. Dengan 5 domain proses yaitu DSS02, DSS03, MEA01, MEA02, dan EDM02 yang bertujuan untuk meningkatkan proses kapabilitas agar mencapai tingkat kapabilitas yang diharapkan. Hasil dari penelitian ini yaitu menghasilkan nilai rata-rata dari kelima domain adalah 3.23 berada pada level 3 (Established Process) dari target yang diinginkan 4, kesenjangan/gap dengan nilai 0.77 yang artinya Pelayanan Sistem Rujukan Online Puskesmas sudah baik dan mendekati nilai yang diharapkan
Filosofia politica nella pandemia. Il panorama italiano
Authors: Serughetti Giorgia
Published: November 2021

From the outset, the emergency generated by the Covid-19 pandemic has had political and philosophical implications, as well as medical, social and economic ones. It has raised issues such as the relationship between security and freedom, between citizens and the state, between rights and obligations, and among democratic powers, as well as discussions about the current economic and environmental model of development. This article presents a review of the main interpretations and reflections on the pandemic proposed by political philosophers in Italy during more than a year of crisis.
Effectiviteit van behandeling van obsessief-compulsieve stoornissen bij ASS: een systematische literatuurreview
Authors: Piening Sigrid , Huyghen Anne-Marie , Hoogma Allies , Kreuze Leonie , Vet Leonike , van Balkom Inge , van Hout Wiljo
Published: November 2021

Little is known about psychological and pharmacological treatment of patients with an autism spectrum disorder (ASD) and comorbid obsessive-compulsive disorder (OCD). We systematically searched PubMed, Embase, and PsycInfo for intervention studies evaluating treatment effects for patients with concurrent diagnoses of ASD and OCD. The search yielded 6594 articles of which after sequential checks of duplicates, title, abstract and full text, eight articles could be included. One study concerned a RCT, four were before-after studies with a control group, and three remaining studies were before-after studies without a control group. All studied the effect of cognitive behavioral therapy (CBT), which appears to be generally effective in treatment of OCD in people with ASD. Further research is needed to determine whether ASD specific CBT protocols are more effective in reducing OCD symptoms than regular CBT.