bluuebunny/crossref_metadata_2025 huggingface dataset:
Mapping of anthropogenic transformation of landscapes in Yakutia
Authors: ГОРОХОВ А.Н.
Published: April 2022

Рассмотрены методологические принципы оценки и картографирования степени антропогенной измененности ландшафтов. Приведен анализ современного состояния ландшафтов Южной Якутии на основе структурной организации и экологического состояния природных комплексов разного уровня. Изучена ландшафтная структура Южной Якутии, установлены основные черты их дифференциации. Оценка степени антропогенного воздействия осуществляется на основных уровнях эколого-географического анализа Якутии: региональном, локально-региональном и локальном. На региональном уровне выявляется степень антропогенной нарушенности ландшафтных региональных комплексов. Здесь приводятся данные об изменениях выделенных объектов исследования на уровне региональных комплексов. На локально-региональном уровне определяется степень антропогенной трансформации типологических комплексов в пределах определенного физико-географического района. Нарушенность ландшафтов определяется по соотношению суммы площадей нарушенных ландшафтов с их весовыми коэффициентами к площади природных ландшафтов. На локальном уровне определяется степень антропогенной измененности ландшафтов, выражаемая в процентах. Выделяется пять степеней нарушенности ландшафтов: неизмененные, слабоизмененные, существенно измененные, сильно измененные и преобразованные ландшафты. Предлагаемая методика оценки нарушенности природных ландшафтов была использована на примере следующих объектов исследования в Южной Якутии: на региональном уровне рассматривается территория Алдано-Тимптонского междуречья (масштаб 1:500 000), локально-региональном – территория Нерюнгринского промышленного комплекса (масштаб 1:200 000), локальном – месторождение «Элькон» (масштаб 1:25 000). На основе результатов оценки антропогенной измененности и с помощью ГИС-технологий были составлены карты степени антропогенной преобразованности ландшафтов Южной Якутии. Анализ антропогенного воздействия на разных пространственно-иерархических уровнях ландшафтов позволил выявить степень нарушенности их естественного состояния.
Laser scanning and prospects of its application for the purposes of topographic mapping and cadastre
Authors: НЕХИН С.С. , БАБАШКИН Н.М.
Published: April 2022

Исследовано современное состояние дел с использованием результатов лазерного сканирования для целей топографического картографирования, кадастра и получения пространственной информации для решения других задач в России и за рубежом. Рассмотрены проблемы, присущие воздушному лазерному сканированию с пилотируемых и беспилотных воздушных судов (БВС). В частности, для систем лазерного сканирования, устанавливаемых на БВС, имеют место сдерживающие факторы их применения, а именно существующие организационно-правовые ограничения доступа БВС к воздушному пространству и обеспечение безопасности полетов, в том числе в ночное время. Системам лазерного сканирования, устанавливаемым на пилотируемые воздушные суда присущи проблемы высокой стоимости оборудования и ПО, а также ограниченное и с каждым годом сокращающееся количество специально оборудованных носителей, способных обеспечить эффективное лазерное сканирование с больших высот.Показаны перспективы и направления применения лазерного сканирования для целей топографического картографирования, кадастра, получения пространственной информации в целях создания цифровых двойников территорий и объектов, связанные с внедрением технологий лазерного сканирования в работы по созданию городов-миллионников в Сибири, созданием единой электронной картографической основы (ЕЭКО), получением совершенно особенного вида продукции - высокоточной топобатиметрической лазерной съемки.Даны предложения по задачам, требующим решения для более интенсивного внедрения технологий лазерного сканирования в производство работ Росреестра и других ведомств: разработка на основе проведения опытно-производственных работ нормативно-технических документов, стандартов, а также документов, регламентирующих временные и финансовые затраты производства работ с учетом новых подходов к оценке эффективности использования технологий лазерного сканирования, связанных с новыми видами продукции, многоцелевым применением пространственной информации в различных отраслях хозяйства страны, многоразовым использованием информации по принципу «получил один раз, используй многократно».
THE THEME "DUALITY" BY F. M. DOSTOEVSKY IN THE NOVEL "DEVIL’S SOUL" E. V. SHISHKIN
Authors: Люй Т.
Published: April 2022

Роман «Бесова Душа» Евгения Шишкина написан в соответствии с традицией классической русской литературы. В произведении можно найти характерные черты стиля повествования многих русских классиков, особенно Ф.М. Достоевского. Шишкин унаследовал и развил традиции Достоевского, на формирование характера героя Федора Завьялова в романе «Бесова Душа» глубоко повлияла тема «двойничества» Достоевского.

Evgeniy Shishkin’s novel Devil's Soul follows the glorious tradition of Russian literature. In this novel, elements of many Russian classic writers can be founded, especially those of Dostoevsky's. Shishkin inherited and developed the traditions of Dostoevsky, the formation of the character of the hero Fyodor Zavyalov in the novel "Devil's Soul" was deeply influenced by the creative theme "duality" of Dostoevsky.
Investigation of the structure of atomically dispersed NiNx sites in Ni, N-doped carbon electrocatalysts by 61Ni Mössbauer Spectroscopy and Simulations
Authors: Koshy David M. , Hossain Md Delowar , MASUDA Ryo , Yoda Yoshitaka , Gee Leland B. , Abiose Kabir , Gong Huaxin , Davis Ryan C. , Seto Makoto , Gallo Alessandro , Hahn Christopher , Bajdich Michal , Bao Zhenan , Jaramillo Thomas
Published: April 2022

Ni and nitrogen-doped carbons are selective catalysts for CO2 reduction to CO (CO2R) but the hypothesized NiNx active sites are challenging to probe with traditional characterization methods. Here, we synthesize 61Ni-enriched model catalysts, termed 61NiPACN, in order to apply 61Ni Mössbauer spectroscopy using synchrotron-radiation (61Ni-SR-MS) to characterize the structure of these atomically dispersed NiNx sites. First, we demonstrate that the CO2R results and standard characterization techniques (SEM, PXRD, XPS, XANES, EXAFS) point to the existence of dispersed Ni active sites. Then, 61Ni-SR-MS reveal significant internal magnetic fields of ~5.4 T which is characteristic of paramagnetic, high spin Ni2+, in the 61NiPACN samples. Finally, theoretical calculations for a variety of Ni-Nx moieties confirm that high spin Ni2+ is stable in non-planar, tetrahedrally-distorted geometries which results in the calculated isotropic hyperfine coupling that is consistent with 61Ni-SR-MS measurements.
In-Liquid Plasma Modified Nickel Foam: NiOOH/NiFeOOH Active Site Multiplication for Electrocatalytic Alcohol, Aldehyde, and Water Oxidation
Authors: Hausmann J. Niklas , Menezes Pramod V. , Vijaykumar Gonela , Laun Konstantin , Diemant Thomas , Zebger Ingo , Jacob Timo , Driess Matthias , Menezes Prashanth W.
Published: April 2022

The oxygen evolution reaction (OER) and the value-added selective oxidation of renewable organic substrates are the most promising reactions to supply electrons and protons for the synthesis of sustainable fuels. To meet industrial requirements, new methods for a simple, fast, environmentally friendly, and cheap synthesis of robust, self-supported, high surface area electrodes are required. Herein, we report on a novel in liquid plasma electrolysis approach for the growth of hierarchical nanostructures on nickel foam. Under retention of the morphology, iron could be incorporated into this high surface area electrode. For the oxidation of 5-hydroxymethylfurfural and benzyl alcohol, the iron free plasma treated electrode is more suitable reaching current densities up to 800 mA/cm² with Faradaic efficiencies above 95%. For the OER, the iron incorporated nickel foam electrode reached the industrially relevant current density of 500 mA/cm² at 1.473±0.013 VRHE (60 °C) and showed no activity decrease over 140 h. The different effects of the iron doping is rationalised using MeOH doping and in situ Raman spectroscopy. Furthermore, we could separate changes in intrinsic activity per active site and number of active sites for the OER as well as reveal diffusion limitations of the organic oxidation reactions which we explain with respect to the surface morphology. We anticipate that the plasma modified high surface area nickel foam could potentially be applied for various electrocatalytic processes.
Highly Conducting Single-Molecule Topological Insulators Based on Mono- and Di-Radical Cations
Authors: Li Liang , Low Jonathan , Wilhelm Jan , Liao Guanming , Gunasekaran Suman , Prindle Claudia , Starr Rachel , Golze Dorothea , Nuckolls Colin , Steigerwald Michael , Evers Ferdinand , Campos Luis , Yin Xiaodong , Venkataraman Latha
Published: April 2022

Single-molecule topological insulators are promising candidates as conducting wires over nanometer length scales. In past, most conjugated molecular wires exhibit low conductance that decays as the wire length increases. To overcome this limitation, we studied a family of oligophenylene-bridged bis(triarylamines) with tunable and stable (mono-/di-)radicaloid character. The wires can undergo one- and two-electron chemical oxidations to the corresponding monocation and dication, respectively. We found that the oxidized wires exhibit high reversed conductance decay with increasing length, consistent with the expectation for the Su-Schrieffer-Heeger-type one-dimensional (1D) topological insulators. The champion 2.6 nm long dication displays a significantly high conductance greater than 0.1 G0 (2e2/h, the conductance quantum), 5400-fold greater than the neutral form. The observed conductance-length relationship is similar between monocation and dication series. DFT calculations elucidate how the frontier orbitals and delocalization of radicals facilitate the observed nonclassical quasi-metallic behavior. These findings offer new insights into molecular design of highly conducting 1D topological insulators.
Evaluation of Incidence and Prognosis of COVID-19 in Patients with Nasal Polyps
Authors: İLHAN Necati , DEMİR Deniz , DELİBAŞ Köksal , GÜVEN Mehmet , YILMAZ Mahmut Sinan , KARA Ahmet
Published: April 2022

Objective: Coronavirus disease 2019 (COVID-19) is a global pandemic infectious disease caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Type 2 immune response accompanied by type 2 cytokines such as IL-4, IL-5, IL-13, and eosinophilic inflammation, may have a potential protective effect against COVID-19 in chronic rhinosinusitis patients with nasal polyps (CRS + P). In the study, it was aimed to investigation the prevalence and prognosis of COVID-19 in chronic rhinosinusitis patients with nasal polyps (CRS + P).
Materials and Methods: Patients between the ages of 15-65 operated for CRS + P and were compared with the control group in terms of incidence and disease severity.
Results: Covid RT-PCR test was positive in 5.04% of CRS + P patients. This rate was 8.96% in the control group, and the difference between both groups was statistically significant. When the two groups were compared in terms of disease severity, no significant difference was found.
Conclusions: The incidence of COVID-19 was lower in patients with CRS + P. However, further prospective studies are needed to research the relationship between nasal polyp and COVID-19.
Comparação entre a determinação direta do VO2 máximo e a determinação indireta do VO2 máximo pelo dispositivo polar V800 de corredores recreacionais
Authors: Silvino Valmir , Ferreira Cirley , Prado Danilo , Santos Marcos
Published: April 2022

A estimação do consumo máximo de oxigênio (VO2max) com o sistema ergoespirométrico, considerado padrão ouro, é de difícil acesso para a população. Portanto, testes indiretos são comumente utilizados. Este estudo comparou o VO2max determinado por um sistema ergoespirométrico com valores estimados pelo dispositivo Polar V800. 17 corredores recreacionais do sexo masculino (29.89 ± 6.84 anos) realizaram um teste cardiorrespiratório em uma esteira programável (modelo ATL, Inbramed, Brasil). Trocas gasosas e variáveis ventilatórias foram medidas respiração por respiração, utilizando um sistema analisador metabólico (Ergoestik Geratherm®, Alemanha). O VO2max foi indiretamente estimado com o Polar V800. A normalidade dos dados foi analisada com o teste de Shapiro-Wilk. O coeficiente de correlação intraclasse e o erro padrão das medidas (SEM) foram utilizados para verificar a confiabilidade. Foi aplicado o teste coeficiente de correlação de Pearson. A significância estatística foi estabelecida em p < .05. O Polar V800 demonstrou baixos níveis de SEM (1.83 mL/kg/min). Houve uma correlação intraclasse moderada-forte entre as repetições para ambos os métodos (ICC = .69; p = .01), uma correlação moderada (r = .54; R2 = .29; p = .02) e uma concordância excelente entre os métodos. O Polar V800 pode ser usado para aferir indiretamente o VO2max de corredores recreacionais.
A massa muscular desempenha um papel sobre marcadores inflamatórios e metabolismo de ferro em pacientes hemodialíticos?
Authors: Jesus Josiane
Published: April 2022

O presente estudo investigou o impacto dos traços da sarcopenia sobre o perfil antropométrico, citocinas pró- e anti-inflamatórias, fatores relacionados ao metabolismo do ferro e o risco de mortalidade em pacientes hemodialíticos. A mostra consistiu de 247 participantes, 177 foram incluídos na amostra com idade de 66.8 (± 3.34) anos.com doença renal em estágio terminal (taxa de filtração glomerular <15 mL/min/1.73m2) com fístula arteriovenosa distribuídos em três grupos: Baixa Massa Muscular, Dinapenia e Sarcopenia. Todos os pacientes apresentavam hipertensão e diabetes. Entre 247 indivíduos, 38 (15.4%) morreram durante o estudo. Desse número de mortes, 9.3% eram não sarcopênicos e 32.3% eram sarcopênicos (p < .0001). Com base na análise de risco proporcional de Cox, os participantes do grupo sarcopênico apresentaram maior risco de morte (HR: 2.492; IC 95%: 1.165 – 5.5331) (p < .0001). Os achados evidenciaram que a massa muscular desempenha um importante papel de proteção para prognósticos ruins em pacientes com DRC, pois o perfil antropométrico, inflamatório e o metabolismo de ferro tendem a ficar comprometidos diante da baixa força e baixa massa muscular apresentados.
Activity profile and physiological demand of padel match play
Authors: Oscar Mellado-Arbelo , Baiget Ernest
Published: April 2022

Padel
is a complex sport within which performance relies on the interrelation of multiple
factors such as physiological and physical capacities, psychological skills,
and tactical and technical knowledge. Padel match involves intermittent whole-body
efforts, evidenced by a large number of strokes and repeated high-intensity
running actions such as accelerations, decelerations and changes of direction.
Due to its recent creation, little is known about the activity and energy
demands of padel match play. The purpose of the
present study was to systematically review physiological demands of padel match
play by assessing parameters related to external load, such as notational
analysis or time-motion studies, and internal load through the analysis of
physiological responses during the match.
The
systematic review process was conducted in accordance with the PRISMA
guidelines. The electronic databases PubMed, Scopus and SportDiscus were
searched using: (“padel” OR “pádel” OR “paddle tennis”). Twelve papers matched
the inclusion criteria, from which four addressed internal load, six external load,
and two analyzed both. A total of 203 padel players across all competition
levels participated in the 12 selected studies. Study outcomes have probed
prevalence of moderate physiological responses, low contribution of anaerobic
glycolytic processes to supply energy, O2 not
being a limiting factor, and moderate to relatively high perceived effort rate.
The highest game durations were found in professional players. Work-to-rest
ratios reaffirm the intermittent nature of padel. Distance covered per set and
match as well as speed are reciprocally proportional to player’s standard level.
The Investigation of the Effect of Antibody Recruiting Molecules on Various Antigenic Markers (Cancer, Bacteria, Viruses): A Literature Review
Authors: Ghai Tanya , Das Aditi , Patel Rudra
Published: April 2022

Introduction: Antibody recruiting molecules (ARMs) are small molecules with low molecular weight that guide endogenous antibodies towards both cancer and infectious cells, they facilitate the process of immune-mediated clearance. ARMs have two specific regions; a Target Binding Terminus interacts with disease biomarkers and the Antibody Binding Terminus, associated with endogenous antibodies. These modules are linked together by a tunable linker region bridging the endogenous antibody and the infected cell. ARMS can be used for a broad range of therapeutic applications, especially for its use against cancer, bacterial, and viral infections. ARMs serve a new potential treatment option over traditional therapies. Methods: To conduct our research, specific search terms were created, and relevant articles were screened on Covidence using an inclusion/exclusion criteria. The CASP and CRAAP checklist will be used for the quality assessment of the utilized sources.
Results: ARMs treatment is a novel pathway which can treat a wide range of diseases from cancer, bacteria, to viruses. ARMs clearly represent promising alternatives in antitumor immunotherapy over traditional methods.
Discussion: One hurdle of using ARMs is that its effect on individuals might differ based on antibody concentrations, their affinities, isotypes etc. Due to the non-specific nature of ARMs, there’s a selectivity issue regarding binding to specific biomarkers or antigens. The use of non-covalent ARMs to target the highly expressed receptors on the tumor can sometimes lead to endocytosis during the binding process before the recruitment of antibodies. This can be potentially solved by adding covalent linkages in the ARMs molecular construct. This paper analyzes the limitations of utilizing ARMs as an effective means for immunotherapy and proposes potential avenues of improvement for greater efficacy.
Conclusion: This paper will potentially advance pharmaceutical and immunotherapeutic interventions available for numerous cancers and infectious diseases.
From Autism Spectrum to Multi-Spectra Living
Authors: Urbistondo Cano Francisco , Simon Gail
Published: April 2022

This paper troubles the concept of single autism spectrum. We discuss how the ideology from early medical theory has influenced the conceptualisation of autistic people, professional diagnostic practice and an aspiration to “cure” people of their autistic selves. We critique the idea of a single spectrum and propose alternative appreciations of autistic people as having diverse identities and community memberships, as people who are living fluid, intersectional lives over many axes and different contexts. Multi-Spectra Living problematises the story of autistic people as primarily or only autistic and proposes autistic people are fluid, contextually influenced and contextually responsive.
We offer an elaboration on intersectionality by explaining how the practice of splintersectionality foregrounds one characteristic over another to reinforce existing professional and everyday prejudice resulting in social and statutory failures to autistic people. We extend the work of Pillow (2019) to discuss how lenticularity, decolonial attitude and epistemic witnessing can support the development of decolonial practice of Multi-Spectra Living.
Frontotemporal dementia: peculiarities of clinical variants
Authors: Klimbytė B. , Vaitkus A.
Published: April 2022

Frontotemporal dementia (FTD) is a group of neurodegenerative diseases that cause atrophy of the frontal and temporal lobes of the brain. The most common clinical variants of FTD are a behavioural variant characterized by disinhibition, apathy, lack of empathy, stereotyped or compulsive behaviour and hyperorality, and primary progressive aphasia which may be semantic or non- fluent. Semantic variant presents with anomia, surface dyslexia, and single-word comprehension deficits, while non-fluent variant is characterized by apraxia of speech and agrammatism in language production. The heterogeneous clinical manifestations of FTD lead to diagnostic challenges in day-to-day clinical practice. Conventional neuropsychological tests used in the diagnosis of Alzheimer’s disease are not sensitive enough to assess cognitive impairment in the frontal lobes. The most frequent clinical variants, differential diagnosis, diagnostic methods, and treatment options of FTD are discussed in this literature review.
From memory impairment to two occluders in the heart – a multidisciplinary case report
Authors: Wiśniewski A. , Filipska K. , Ekkert A.
Published: April 2022

Transient global amnesia (TGA) is a rare cause of a sudden onset of confusion and anterograde amnesia. It is considered of ischemic, epileptogenic, or venous origin. The etiology is uncertain, although hipertension, hiperlipidemia, and ischemic heart disease are considered as possible mechanisms. The impact of stress, migraine, physical effort is also highlighted. In contrast to ischemic stroke, atrial fibrillation (AF) and patent foramen ovale (PFO) are relatively rarely reported in the pathophysiology of acute memory impairment. In most cases, no visible lesion is detected on neuroimaging. This case report presents a 62-year-old woman with TGA symptoms who had an acute left temporal lobe ischemic lesion confirmed by diffusion-weighted imaging sequence of magnetic resonance imaging. Extensive workup revealed coexistence of AF and PFO. Due to intolerance to oral anticoagulants, percutaneous closure of left atrial appendage and PFO was performed within two months. Combined heart interventions have proven to be a safe and efficient therapeutic option for secondary stroke prevention in this patient. This case illustrates that patients with sudden memory impairment require careful observation and extensive workup, as well as a multidisciplinary approach and treatment.
SINTESIS ESTER SELULOSA STEARAT SEBAGAI WET STRENGTH AGENT UNTUK PAPERBAG DARI TANDAN KOSONG SAWIT (TKS)
Authors: Agusna PA Angga Tri , Ginting Zainuddin , Azhari Azhari , Dewi Rozanna , Zulnazri Zulnazri
Published: April 2022

Tandan kosong kelapa sawit (TKS) adalah salah satu produk samping (by-product) berupa padatan dari industri pengolahan kelapa sawit. Kandungan selulosa yang cukup tinggi yaitu sebesar 40% menjadikan Tandan Kosong Sawit sebagai alternatif lain untuk dimanfaatkan Selulosa sebagai bahan baku pembuatan Ester Selulosa stearat. Ester Selulosa Stearat disintesa melalui reaksi transesterifikasi antara α-Selulosa hasil isolasi dari Tandan Kosong Sawit (TKS) dengan metil stearat. Sintesa Metil stearat dilakukan dengan mereaksikan metanol dan asam stearat dengan bantuan katalis H2SO4(p). Sintesis Ester selulosa stearat dilakukan dengan cara refluks selama 2 jam menggunakan pelarut metanol dengan variasi katalis Na2CO3 5, 10, 15, 20 mg dan dengan variasi volume metil stearat 5, 10, 15 ml. Variasi terbaik ditentukan berdasarkan uji derajat substitusi yaitu dengan variasi katalis Na2CO3 20 mg dan volume metil Stearat 15 ml, sebesar 1,95. Hasil sintesis yaitu selulosa stearat diuji gugus fungsi dengan spektroskopi FT-IR dan morfologi permukaan menggunakan SEM. Terbentuknya selulosa stearat didukung oleh spektrum FT-IR pada daerah bilangan gelombang 3468,01 cm-1 menunjukkan gugus O-H, 3062,96 cm-1 gugus C-H streching, 1695,43 cm-1 gugus C=O, 1465,90 cm-1 gugus C-H bending, 1095,57cm-1 gugus C-O-C, dan 609,51cm-1 gugus (CH2)n>4. Hasil analisis morfologi permukaan menggunakan SEM menunjukkan bahwa permukaan selulosa stearat tampak homogen, lebih teratur dan memiliki rongga-rongga yang lebih rapat daripada α-Selulosa.
PENURUNAN KADAR FFA (FREE FATTY ACID ) PADA CPO DENGAN MENGGUNAKAN ADSORBEN DARI KARBON AKTIF CANGKANG BUAH KETAPANG
Authors: Jondra Adriyan , Azhari Azhari , Sulhatun Sulhatun , Zulnazri Zulnazri , Meriatna Meriatna
Published: April 2022

AbstrakMinyak Kelapa Sawit dikenal dengan CPO (Crude Palm Oil) yang mengandung sejumlah komponen diantaranya asam lemak bebas atau dikenal dengan FFA (Free Fatty Acid). Tingginya FFA sangat mempengaruhi tingkat kualitas dari minyak sawit. Salah satu pemurniannya adalah dengan cara Adsorpsi menggunakan Adsorben. Penelitian ini menggunakan Adsorben Cangkang Buah Ketapang. Tujuan dari penelitian ini adalah Menganalisis pengaruh massa adsorben cangkang buah ketapang dan waktu adsorpsi terhadap penurunan kadar FFA pada CPO minyak kelapa sawit.Variabel yang digunakan pada penelitian ini adalah massa Adsorben (0,6; 0,8; 1; dan 1,2) gram dan waktu kontak (2, 3, 4) jam. Hasil terbaik diperoleh pada Adsorben 1,2 gram dengan waktu kontak 3 jam dengan persen penurunan kadar FFA 15,51 % dan dengan efisiensi penyerapan 35,18 % dari  Kandungan FFA awal adalah sebesar 23,93 %. Dengan efisiensi penyerapan 35,18 %. Semakin lama waktu adsorpsi maka semakin sedikit kadar air yang terakandung. Model isotherm Langmuir paling baik menggambarkan yang menunjukkan lapisan adsorbat yang terbentuk pada permukaan adsorben adalah monolayer dengan nilai R2 0,9711. Pengujian FTIR sesudah Aktivasi menunjukkan vibrasi ulur gugus (C=O) dan gugus ( C=C). Hasil menunjukkan bahwa penurunan kadar FFA pada CPO meningkat dengan banyaknya massa adsorben dan didapatkan bahwa semakin lama waktu kontak akan menyebabkan proses Adsorpsi mengalami kejenuhan pada Adsorben.Kata kunci:Adsorben, Crude palm oil, Free fatty acid.
PENGARUH KONSENTRASI EKSTRAK KOPI SEBAGAI INHIBITOR TERHADAP LAJU KOROSI PADA BAJA
Authors: Afrilia Desi , Bahri Syamsul , Jalaluddin Jalaluddin , Masrullita Masrullita , ZA Nasrul
Published: April 2022

Penggunaan bahan logam khususnya besi atau paduan besi (alloy) seperti baja banyak dimanfaatkan pada masa modern ini. Namun, kekurangan dari logam yaitu adanya reaksi pengkaratan yang menyebabkan besi keropos sehingga kehilangan kekuatannya.Laju korosi dapat diperlambat salah satunya dengan penambahan inhibitor. Inhibitor organik efektif dan tidak berbahaya bagi lingkungan. Tanin merupakan senyawa alami yang dapat menghambat korosi, salah satu bahan alam yang banyak mengandung tanin adalah kopi, pada penelitian ini menggunakan  kopi. Penelitian ini bertujuan mengetahui pengaruh dan presentase efisiensi inhibisi korosi dengan menggunakan ekstrak kopi terhadap laju reaksi korosi pada baja. Tahap pendahuluan pada baja murni diukur, dipotong, dicuci, dikeringkan, dan ditimbang sebagai berat awal, kemudian kopi ditimbang dan ditambahkan heksane, direndam 2x24 jam ditutup dengan aluminium foil dipanaskan disaring jika belum mengental maka dipanaskan kembali. Inhibitor ekstrak kopi dengan konsentrasi 1:10, 1:7,5, 1:5, ditambahkan ke dalam baja murni untuk melapisi permukaan selama 3 hari sebelum direndam dalam media korosi NaCl 4% dengan variasi waktu 6, 9, dan 12 hari. Kemudian hitung sebagai berat akhir. Perhitungan laju korosi dan efisiensi menggunakan metode gravimetri, yaitu pengurangan berat pada baja murni sebelum adanya ekstrak  kopi dan setelah adanya ekstrak kopi. Hasil penelitian ini menunjukan bahwa ekstrak kopi dengan konsentrasi 1;10 dapat menurunkan laju korosi pada baja murni dalam media korosi larutan NaCl 4% dan efisiensi inhibisi sebesar 6,0625%.
Analisis Konflik Batin Tokoh Utama Dalam Film Liam Dan Laila Karya Arief Malinmudo Pendekatan Psikologi Sastra
Authors: Prihastiwi Anisa , Murniviyanti Liza , Hetilaniar Hetilaniar
Published: April 2022

ABSTRAK: Analisis Konflik Batin Tokoh Utama Dalam Film Liam Dan Laila Karya Arief Malinmudo  Pendekatan Psikologi Sastra.Penelitian ini bertujuan untuk mendeskripsikan konflik batin tokoh utama dalam film Liam dan Laila karya Arief Malinmudo. Dengan menggunakan pendekatan Kurt Lewin dan tinjauan psikologi sastra yang dikembangkan oleh Sigmund Freud yaitu: Id, Ego, Superego. Penelitian ini merupakan penelitian deskriptif kualitatif. Metode penelitian ini adalah dengan menggunakan jenis penelitian dokumentasi dimana penelitian yang dilaksanakan dengan mengumpulkan data dari berbagai literatur-literatur yang diteliti tidak hanya buku-buku, tetapi juga berupa bahan-bahan dokumentasi, majalah, jurnal, website, film. Strategi ini difokuskan pada satu kasus yaitu konflik batin oleh tokoh utama dalam film Liam dan Laila karya Arief Malinmudo. Teknik pengumpulan data dalam penelitian ini dilakukan dengan teknik pustaka dan catat. Teknik pustaka yaitu mempergunakan sumber-sumber tertulis yang digunakan, diperoleh sesui dengan masalah dan tujuan pengajian sastraBerdasarkan hasil analisis teori Kurt Lewin, konflik batin yang dialami tokoh utama (Laila) dalam film Liam dan Laila Karya Arief Malinmudo, yaitu konflik, kesedihan, kebimbangan, kekecewaan atas pertentangan akan pinangan Liam dimana tokoh utama cenderung tidak dapat menentukan pilihan hidup sendiri, namun harus melalui norma-norma peraturan adat-istiadat yang harus dipenuhi. Sedangkan pada aspek psikologi Sigmund-Freud ada tiga unsur kepribadian dalam diri tokoh utama yaitu Id, Ego, dan Super Ego. Pada hasil penelitian menunjukkan bahwa komponen Ego lebih besar ada dalam diri tokoh utama.
Pengaplikasian Media Google Classroom pada Materi Membaca Puisi Melalui di Tengah Pandemi Covid-19
Authors: Rizky Vega Bintang
Published: April 2022

Pengaplikasian Media Google Classroom  pada Materi Membaca Puisi Melalui di Tengah Pandemi Covid-19. Penelitian ini bertujuan untuk Mendeskripsikan Implementasi Media Google Classroom Dalam  Materi Membaca Puisi di Tengah Pandemi Covid-19 di Kelas IV SDN 02 Seluma. Jenis penelitian ini adalah penelitian Kualitatif dengan pendekatan Metode Deskriptif. Subjek dan informan dalam penelitian ini adalah guru mata pelajaran bahasa Indonesia kelas IV SDN 02 Seluma, siswa kelas IV SDN 02 Seluma. Teknik pengumpulan data menggunakan teknik  wawancara dan dokumentasi. Dan analisis data dilakukan dengan reduksi data, penyajian data, penarikan kesimpulan. Hasil penelitian menunjukkan bahwa Implementasi Media Google Classroom Dalam  Materi Membaca Puisi di Tengah Pandemi Covid-19. Aktivitas siswa dalam proses pembelajaran bahasa Indonesia meggunakan media google classroom sudah berjalan cukup baik dan didapatkan respon positif dari siswa. Siswa mengatakan bahwa belajar menggunakan media google classroom di masa pandemic sekarang membantu mereka dalam belajar di rumah karena menambah wawasan dalam penggunaan teknologi digital pada zaman sekarang dan tidak perlu keluar rumah untuk mengumpulkan tugas dari guru dan cukup mudah memahami materi yang diberikan melalui google calassroom karena menggunakan media video pemeblejaran yang diberikan oleh guru.
Prevalence and determinants of mental health among an indigent population in rural Burkina Faso: a cross-sectional study
Authors: Porfilio-Mathieu Lyann , Pigeon-Gagné Émilie , Dagenais Christian , Ridde Valéry
Published: April 2022

Background

In Burkina Faso, prevalence of mental health disorders and the characteristics of people living with these disorders are scarce, especially among the poorest.

Methods

This study aims at providing a descriptive portrait of the prevalence of psychiatric symptoms and their determinants among indigent individuals living in rural Burkina Faso. A cross-sectional design was chosen, using a stratified sampling procedure. A questionnaire comprising 73 questions was administered to 1314 respondents.

Results

Mental health symptoms were grouped into three types: anxiodepressive, somatic and psychotic. A total of 1234 (93.9 %) participants reported having experienced at least one anxiodepressive symptom and 1087 (82.7%) respondents reported at least one somatic symptom one month prior to the interview. Furthermore, 256 (19.5%) participants reported at least one psychotic symptom in their lifetime. Differences in the expression of distress between regions were noted as well as a feeling of exclusion among respondents to their communities were common to all symptomatic profiles, which opens up avenues of targeted intervention for future equitable mental health policies.

Conclusions

The mental health action plan 2014-2018 in Burkina Faso7 identified the lack of evidence in mental health as one of the most salient issues. This study contributes to addressing this limitation and participates in the Movement for Global Mental Health (MGMH) by providing knowledge on the prevalence of symptoms of mental health disorders in a vulnerable population living in rural areas.
Anesthesia in the elderly with colon cancer and postoperative outcome
Authors: Maria I Dalamagka
Published: April 2022

Colorectal surgery is commonly performed for colorectal cancer but morbidity and mortality remain high and vary among surgical centers. Two elderly patients with Colorectal Cancer and a history of Chronic Obstructive Pulmonary Disease underwent epidural anesthesia plus general anesthesia for colectomy surgery. In addition, Bridium was used as an inhibitor of muscle relaxation to better awaken them. The aim of the study was to evaluate the postoperative outcome of elderly patients with colorectal cancer and session disease Chronic Obstructive Pulmonary Disease, when they undergo anesthesia to perform a major surgery such as colectomy. The combination of epidural and general anesthesia showed encouraging results in the postoperative outcome of these patients and Bridium's effect on winning was significant.
G10S an immunoglobulin peptide against melanoma
Authors: Eric Almeida Xavier
Published: April 2022

Peptides are the end product of transcript processing, for example allow the great viral adaptations and their transfection between species arising pandemic threats or diseases devoid of nucleic acid like prions. So, because of their high specificity, peptides can be used for different therapeutic goals. In this work we describe in vitro action of a peptide named G10S this sequence is part of a group previously selected by ExPASy Proteomics Tools Compute to find immunoglobulin molecules look like defensins of protective natural immunity which showed activity against tumors, which motivated us to investigate this activity against murine B16F10 melanoma. Thus, that criterion is capable to generate molecules against tumor, for interfering in cell adhesion, viability, migration and cycle. To conclude, the present work suggests a functional molecule against tumor.
The missing chemo port catheter fragment
Authors: Ng Kwang How  , Anwar Irawan Ruhani
Published: April 2022

The totally implantable venous access ports (TIVAP) is commonly indicated for oncology patients for administration of chemotherapy, total parenteral nutrition and long-term intravenous therapy. It is associated with some complications, which might cause significant morbidity or mortality. Spontaneous fracture and migration of the catheter is a rare but potentially serious complication. We presented a 22 year-old gentleman with diffuse large B cell lymphoma and had TIVAP done. It was complicated with the fractured and embolized catheter fragment. Endovascular retrieval was successfully performed and patient was subsequently discharged well.
Generator protection system with reverse power relay on 1000 KVA 'Cummins' diesel generator at Cepu Human Resources Development Center
Authors: Yosua Alvin Adi Soetrisno  , Bambang Winardi  , Enda Wista Sinuraya
Published: April 2022

Each generator is designed to create a certain amount of electricity. However, there are situations when the generator cannot handle the current load. The solution is to employ two or more generators to produce as much power as the number of generators operating simultaneously or synchronizing (parallel generator). Several parameters must be configured throughout the synchronization process, including the phase sequence, voltage, frequency, and phase angle, which must be the same. An operation failure can occur if one of the prerequisites is not fulfilled, resulting in reverse power. The motoring condition is a condition that occurs when the primary mover of a parallel generator fails. A reverse power protection mechanism is required to prevent this motoring. When one of the generator's prime movers fails or the operation fails, the voltage and load will drop. The other generator then feeds another generator. The reverse power relay instructs the generator's main circuit breaker to open the circuit so that no additional equipment is harmed. This research aims to investigate and comprehend the reverse power relay protection system's use.
ANALISIS KEMAJUAN PROYEK MAINTENANCE ISOLASI DENGAN METODE EARNED VALUE (Studi Kasus: CV. HASIL)
Authors: Kurniawan Rizal Anggara , Mahbubah Nina Aini , Fathoni Muhammad Zainuddin
Published: April 2022

CV. Hasil memeperoleh proyek Maintenance Isolasi dengan batas waktu 29 hari dengan total biaya Rp. 22.013.000.  Pemeliharaan pekerjaan isolasi ini berhubungan dengan waktu dan biaya maka perlu adanya analisis mengenai perkembangan perkerjaan untuk mencapai pengendalian kinerja serta memastikan apakah CV. Hasil mengalami keuntungan atau kerugian dalam mengerjakan proyek selama 29 hari. Analisis ini bertujuan untuk mengendalikan waktu dan biaya agar tidak terjadi kelebihan jadwal dan pembengkakan terhadap biaya. Metode yang digunakan pada penelitian adalah metode Earned Value. Earned Value adalah sutau metode pengendalian yang digunakan untuk mengendalikan biaya, jadwal proyek secara terpadu dan untuk mengukur kinerja proyek (Sudarsana, 2008). Untuk penelitian analisis dengan perhitungan ACWP, BCWP dan BCWS.Analisis kemajuan proyek maintenance isolasi dilakukan saat proyek berjalan 75% yaitu 22 hari. Hasil analisis perhitungan SV adalah Rp 295 yang berarti pekerjaan lebih cepat dari yang direncanakan dan CV adalah Rp 0 artinya biaya pekerjaan sesuai dengan yang direncanakan. Hasil analisis perhitungan SPI adalah 1 berarti proyek mengalami kinerja penyelenggaraan proyek lebih baik dari perencanaan, jadwal lebih cepat dari rencana dan CPI adalah 1 artinya biaya pekerjaan sesuai dengan pekerjaan yang direncanakan. Hasil analisis perkiraan penyelesaian proyek sebesar Rp. 16,222,433, artinya biaya mengalami penurunan dari biaya aktual yaitu Rp. 16,223,876. Hasil perhitungan perkiraan biaya untuk menyelesaikan pekerjaan membengkak Rp. -1.443 dari awal direncanaan Rp. 22,013,000 dan perkiraan waktu proyek selesai sesuai perencanaan yaitu 29 hari, artinya sesuai dengan jadwal yang direncanakan.
ANALISIS PENYEBAB KEGAGALAN CHLORINATION PLANT DENGAN METODE FMEA DAN FTA
Authors: Hidayat Hidayat
Published: April 2022

Chlorination Plant adalah suatu alat  yang dapat mengelektrolisa air laut dan menghasilkan Sodium Hypochlorite (NaOCl). NaOCl selanjutnya diinjeksikan ke intake air pendingin condenser, untuk melumpuhkan mikroorganisme laut agar tidak bersarang dan merusak peralatan. Dari data riwayat kerusakan di PT. PJB UP Gresik, ada 180 gangguan selama tahun 2001 – 2018 yang mengakibatkan Chlorination Plant gagal beroperasi. Untuk mencari penyebab dasar dari kegagalan yang dominan, akan dikaji lebih lanjut dengan metode Failure Mode and Effect Analysis dilanjutkan metode Fault Tree Analysis kemudian diberikan usulan pencegahan untuk meminimalkan terjadinya kegagalan pada Chlorination Plant. Dari hasil penelitian diketahui bahwa Rectifier SCR Resistansi Rendah, Cell Chlorine Bocor dan Sea Water Supply Strainer Buntu adalah  penyebab kegagalan yang paling dominan. Untuk menurunkan resiko kegagalan, selanjutnya disarankan untuk mereview standart job prediktif maintenance pada peralatan tersebut, sedangkan kegagalan yang diakibatkan karena umur diusulkan untuk memetakan remaining useful life peralatan.
Mencegah Second Victimization Melalui Asesmen Terpadu bagi Korban Penyalahgunaan Narkotika di Kabupaten Banyumas
Authors: Saefudin Yusuf , Samhudi Gamalel Rifqi
Published: April 2022

Cases of drugs abuse and illicit trafficking continue to rise along with the increasing number of addicts and abusers of narcotics. Addicts and Victims of Narcotics Abuse are often in a dilemma between the perpetrator or victim. Assessment integrated can clarify their position. The problems studied in this research is about how the concept of assessment integrated into the case of criminal acts of narcotics and how the mechanism of placement of victims of abuse of narcotics into institutions of rehabilitation. This research is a juridical-sociological, designed using survey method, observation, interview and literature study. The Data obtained were collected and analyzed qualitatively with the model of descriptive-analytical. Based on the results of research, assessment integrated designed to distinguish between addicts and victims of narcotics abuse with a drug dealer/courier narcotics. Assessment integrated to produce recommendations that contain a description of the involvement of the suspect with a network of illicit narcotics, the level of dependence on narcotics and a plan of rehabilitation of addicts and victims of narcotics abuse. Of the 15 cases studied, there were 8 cases of drug abuse and only 1 of 8 such cases that boil down to rehabilitation. The assessment integrated a mechanism that is able to avoid the victims of the abuse of narcotics from the threat of imprisonment. Avoiding the victims of drug abuse from a criminal to prison is expected to break the chain of problems of drug abuse and illicit trafficking. It can be realized through a pattern of different handling between the addict/abuser with a drug dealer/courier narcoticsKeywords: Integrated Assessment, the Narcotics Crime, the Victims of Drug Abuse
Pengelola dan Daftar Isi Vol. 17 No. 02 Desember 2020
Authors: (Pharmaceutical Journal Of Indonesia) PHARMACY: Jurnal Farmasi Indonesia
Published: April 2022

Pengelola dan Daftar Isi Vol. 17 No. 02 Desember 2020
Indeks dan Panduan Penulis Pharmacy Vol. 17 No. 02 Desember 2020
Authors: (Pharmaceutical Journal Of Indonesia) PHARMACY: Jurnal Farmasi Indonesia
Published: April 2022

Indeks dan Panduan Penulis Pharmacy Vol. 17 No. 02 Desember 2020
Pengaruh Perbedaan Konsentrasi Pelarut Pengekstrak terhadap Stabilitas Sifat Fisik dan Aktivitas Antibakteri pada Sediaan Foot Sanitizer Spray Kombinasi Ekstrak Biji Kopi dan Rimpang Jahe
Authors: Santoso Joko , Riyanta Aldi Budi
Published: April 2022

Kopi memiliki aroma yang kuat sehingga efektif digunakan sebagai penghilang bau kaki. Selain itu, jahe memiliki kandungan oleoresin yang mampu membunuh bakteri sehingga cocok dikombinasikan sebagai bahan foot sanitizer. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi pelarut pengekstrak terhadap stabilitas fisik sediaan foot sanitizer kombinasi ekstrak biji kopi dan rimpang jahe beserta aktivitas antibakterinya.  Metode uji stabilitas fisik dilihat dari organoleptik dengan indera,  pH menggunakan pH stick, uji berat jenis dengan metode piknometer, uji viskositas dengan metode otswald, uji aktivitas bakteri dengan metode sumuran, dan uji stabilitas menggunakan metode Freeze Thaw. Foot sanitizer yang dihasilkan memiliki sifat fisik yang stabil dengan tiga siklus pengujian diperoleh bentuk organoleptis yang stabil dari warna, bau, bentuk  dan rasa; pH 6,6; berat jenis  1,16 g/ml; viskositas 2,69  cP; dan memiliki aktivitas bakteri dengan zona hambat 9,73mm dan 14,80 mm. Penelitian ini membuktikan bahwa dengan menggunakan pelarut yang berbeda menghasilkan sediaan dengan sifat fisik yang stabil dan aktivitas antibakteri yang berbeda. Aktivitas antibakteri yang lebih baik diperoleh dari sediaan dari ekstrak yang diekstraksi menggunakan pelarut etanol 90% dengan daya hambat akhir 14,80 mm.
A Comparative In-vitro Dissolution Profiles of Generic and Branded Amoxicillin
Authors: Sirait Septilina Melati , Hanafi Hanafi , Rahmatia Lintannisa
Published: April 2022

There are two types of Amoxicillin in the form of tablets, generic and branded medicines. Generally, drug products undergo systemic absorption through a series of processes, including disintegration of drug products followed by drug release, dissolution of drugs in aqueous media, and absorption through cell membranes into the systemic circulation. Dissolution profiles of generic and branded Amoxicillin were used to reference the public to choose generic Amoxicillin or branded Amoxicillin. It was because branded Amoxicillin is more expensive than generic Amoxicillin. This study aims to determine the dissolution profile and physical properties of both generic and branded amoxicillin tablets produced by the same pharmaceutical manufacturer. The Measurement of physical properties was carried out with several parameters: uniformity in weight and size, fragility test (friability), and disintegration test. All the results can meet the acceptance requirements that refer Indonesian Pharmacopoeia 5th edition in 2013. The physical properties result obtained by each. The dissolution test was done using an ultraviolet spectrophotometric method; dissolution tools were typed two apparatuses at 75 rpm with aquadest for 30 minutes, 37 ± 0,5 oC. The dissolution profile of generic Amoxicillin was declared identical or similar to branded Amoxicillin. It can be seen from F1 value = 3.40 and F2 value = 67.77, each of which meets the identical category's standard. Dissolution profiles of generic and branded Amoxicillin were declared identical, which means the Amoxicillin's quality control was equally excellent.
Aktivitas Sitotoksik dan Ekspresi Protein p53 Bcl-2 Ekstrak dan Fraksi Daun Kersen (Muntingia calabura L.) terhadap Sel Kanker Payudara T47D
Authors: Saraswati Maulita , Harmastuti Nuraini , Herdwiani Wiwin
Published: April 2022

Daun kersen (Muntingia calabura L.) merupakan tanaman yang dapat digunakan sebagai alternative pengobatan kanker. Penelitian ini bertujuan mengetahui aktivitas sitotoksik ekstrak etanol daun kersen, fraksi n-heksan, fraksi etil asetat dan fraksi air ekstrak daun kersen terhadap sel T47D dan mengetahui pengaruh ekspresi protein p53 dan Bcl-2 pada pemberian fraksi aktif daun kersen. Daun kersen diekstrak dengan metode maserasi menggunakan pelarut etanol 70%. Ekstrak etanol kemudian difraksinasi dengan partisi cair-cair. Uji sitotoksik dilakukan pada sel kanker payudara T47D dan sel vero dengan metode MTT assay dan dibaca absorbansinya menggunakan ELISA reader. Untuk mengetahui pengaruh ekspresi protein p53 dan Bcl-2 dilakukan uji imunositokimia. Hasil penelitian ini menunjukkan bahwa fraksi n-heksan daun kersen memiliki aktivitas sitotoksik potensial terhadap sel kanker payudara T47D, sedangkan pada ekstrak, fraksi etil asetat, dan fraksi air memiliki aktivitas sitotoksik moderat. Fraksi n-heksan daun kersen mampu meningkatkan ekspresi protein p53 dan Bcl-2 pada konsentrasi 6,79 - 27,16 µg/mL.
Formulasi Emulsi Topikal Ekstrak Umbi Bawang Putih (Allium sativum L.) sebagai Insektisida Alami Pembasmi Kutu Rambut
Authors: Hayati Rima , Balqis Cut Putri
Published: April 2022

Umbi bawang putih (Allium sativum L.) diketahui mengandung senyawa allicin, flavonoid dan saponin yang memiliki aktivitas sebagai insektisida alami. Berdasarkan penelitian sebelumnya ekstrak umbi bawang putih dengan konsentrasi 8% memiliki waktu bunuh paling efektif terhadap kutu rambut, yaitu dalam waktu 0,0630 jam. Penelitian ini bertujuan untuk memformulasikan ekstrak umbi bawang putih menjadi sediaan emulsi topikal yang berfungsi sebagai insektisida alami kutu rambut. Metode yang digunakan untuk mengekstraksi simplisia umbi bawang putih adalah maserasi menggunakan pelarut etanol 70%. Formula dibuat dengan konsentrasi ekstrak bawang putih 8% (F1) dan 12% (F2). Emulsi yang dihasilkan berwarna coklat muda (F1) dan coklat (F2) berbentuk cairan kental, memiliki bau khas umbi bawang putih. Emulsi F1 dan F2 menunjukkan susunan yang homogen, mempunyai nilai pH 7,4 (F1) dan pH 6,9 (F2). Emulsi topikal juga mempunyai daya lekat 71,67 detik (F1) dan 84,33 detik (F2), mempunyai daya sebar sebesar 6 cm (F1) dan 5,7 cm (F2). Emulsi topikal mempunyai viskositas sebesar 130,1 cP (F1) dan 152,2(F2) cP. Formula F1 dan F2 memenuhi persyaratan organoleptis, uji homogenitas, uji pH, uji tipe emulsi, uji daya lekat, uji daya sebar dan viskositas sediaan emulsi.