bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigasi Efek Partial Shading Terhadap Daya Keluaran Sel Surya
Authors: Aprillia Bandiyah Sri , Zulfahmi Muhammad Rafiqy , Rizal Achmad 
Published: December 2023

Energi listrik pembangkit tenaga surya yang terhubung ke jaringan terpadu bergantung pada intensitas radiasi matahari. Namun, pada beberapa area pembangkit tenaga surya masih terdapat pohon dan gedung disekitar nya yang dapat menutupi sebagian area permukaan panel surya (partial shading). Penelitian ini bertujuan untuk investigasi efek dari variabilitas radiasi matahari akibat partial shading terhadap daya keluaran sel surya 1 Wp. Berdasarkan hasil observasi pada pengujian pukul 10.00 â€“ 14.00, tegangan terbuka dan arus hubung singkat pada sel surya mengalami penurunan seiring kenaikan intensitas partial shading. Semakin besar partial shading pada sel surya maka daya keluaran yang dihasilkan semakin rendah. Efek setengah partial shading dari total area sel surya mengakibatkan penurunan daya sebesar 88.2%. Seperempat shading mengakibatkan penurunan daya keluaran sel surya sebesar 75.6% dibandingkan daya pada kondisi normal. Selain itu Kenaikan suhu sel surya mengakibatkan penurunan tegangan terbuka yang cukup berarti.
Pengaruh Teknologi Digital, Proses Penganggaran, Dan Sistem Pengendalian Internal Terhadap Performa Koperasi (Studi Kasus Koperasi KSU Parnados Dan CU Hati Nurani Di Kabupaten Rokan Hulu Riau)
Authors: Purba Sahala 
Published: December 2023

Riset ini bermaksud untuk mengkaji apakah teknologi digital, proses penganggaran dan Sistem Pengendalian Internal berdampak kepada Performa Koperasi di Koperasi KSU Parnados dan CU Hati Nurani Kabupaten Rokan Hulu Riau. model riset yang dipakai adalah deskriptif kuantitatif. Populasi dalam riset ini seluruh Pengurus dan Karyawan pada Koperasi KSU Parnados dan CU Hati Nurani Kabupaten Rokan Hulu Riau dengan sampel sebanyak 52 orang yang meliputi Pengurus dan Karyawan. Jenis data yang dipakai dalam riset ini adalah data kuantitatif dan sumber datanya data primer, sedangkan teknik dalam pengumpulan data saya memakai kuesioner, Teknik analisis data yang digunakan dalam riset ini adalah statistik deskriptif serta dalam pengolaan data memakai aplikasi SPSS versi 26. Hasil riset ini memperlihatkan bahwa Teknologi digital, Proses Penganggaran dan Sistem Pengendalian Internal berdampak terhadap Performa Koperasi, begitu juga dalam pengujian secara bersama-sama, bahwa teknologi digital, proses penganggaran dan sistem pengendalian internal berdampak secara bersama-sama terhadap performa koperasi. Sedangkan implikasi dari riset ini adalah dengan adanya penerapan teknologi digital, proses penganggaran dan sistem pengendalian internal akan dapat menaikkan performa koperasi khususnya pada koperasi KSU Parnados dan CU Hati Nurani
Isolation of embelin from embeliaribes berries for the development of topical anti–inflammatory preparation
Authors: R Badmanaban , Padathil Maria S , Parveen Hanna , Joy Dona Merin , Majeed Shahana , S Joycymol , Sen Dhrubo Jyoti 
Published: December 2023

Purpose: Embelin is a natural benzoquinone compound, isolated from Embeliaribes berries, known extensively for its anti-inflammatory properties. Due to its hydrophobic nature, it was less explored for topical preparation. Therefore, the purpose of this study was to explore the potential of embelin as an anti-inflammatory agent for topical preparations as well as assess its potential to replace synthetic drugs, which can be resistant to bacterial strains. A topical preparation with embelin would be potentially more effective as well as safer than synthetic drugs.
Method: Embelin has been converted into its potassium salt, and a cream was developed, which was then subjected to physiochemical evaluation. The isolated Embelin and Embelin Potassium salts were characterised by various spectral analysis. The in vitro anti-inflammatory activity was determined by the heat-induced hemolysis and albumin denaturation. Docking scores of embelin and diclofenac were compared and the drug content per gram of cream was estimated.
Result: The UV spectral absorption peak of Embelin was determined to be at 274 nm, while that of the potassium salt of Embelin was at 515 nm.. The IR bands were found at 1328.951cm-1,361.74 cm-1, 1616.35 cm -1,1616.35 cm -1 ,1452.4 cm -1, 748.28 cm -1 and 2947.23 cm -1 respectively due to phenolic OH bending, C=O stretching, aromatic ring bending, methylene bending and methyl stretching . The IR spectra of Embelin potassium salt exhibited similar pattern as that of Embelin but with shifted band due to presence of potassium salt. Heat-induced hemolysis using diclofenac as standard and embelin potassium salt as test showed 98.01% inhibition and 92% inhibition, respectively, at50µg/ml. The binding affinity of diclofenac was determined to be -4.9, while the binding affinity of embelin was -5.7, indicating a higher affinity for embelin. Lastly, the drug content per gram of cream was found to be 95%, indicating the amount of active drug (embelin or embelin potassium salt) present in the cream formulation.
Conclusion: Embelin was isolated from Embeliaribes berries and formulated into a herbal cream. The in-vitro studies conducted on the cream showed that it has a significant effect on inflammation . However, in–vivo studies are required for the prepared topical cream to confirm its effectiveness.
Assessment of patient knowledge, practice and adverse events of insulin administration and storage techniques in patients with diabetes
Authors: Tom Antriya Annie , Antony Namitha , Ashok Pavithra , PS Muhammad Abdul Khadir , Jojo Juhy 
Published: December 2023

Diabetes mellitus is a group of metabolic disorder characterised by hyperglycaemia. For effective therapy, correct injection procedures, adequate storage, insulin dose adjustment, meal timing, site rotation, and compliance. The aim of this work is to assess the knowledge and practice of insulin administration and storage techniques in diabetes patients. It is a survey based cross sectional study conducted through both online and offline modes among diabetic patients consuming insulin in Ernakulam district. 213 cases were included and it consist of diabetic patients on insulin therapy. About 54.4% of patients were males and 45.6% patients were females. Majority 57.3% experienced hypoglycaemia and 17.3% never experienced it. 51.6% patients were educated by nurse, 25.6% by doctors and only 17.6% were educated by pharmacist. The study presented an insight into the practices of insulin administration and awareness to the diabetic patients, study also extended to other health care professionals in the society.
A retrospective study of clinical profile of viper bite cases in selected hospitals in central kerala
Authors: Saju Anumol , Tom Antriya Annie , Paul Aby , Saju Swapna , Johnson Dona , Thomas Jesyln Joe , Steffi Kuttikkaden Joy , Joll Joyal M 
Published: December 2023

Viper bite is a commonly occurring occupational health hazard to people involved mainly in agricultural sector in tropical and sub-tropical areas. The aim of the study was to assess the clinical pattern of poisonous snakebites from four selected hospitals in central Kerala. Study site: Carithas Hospital (Kottayam), Little Flower Hospital and Research Centre (Angamaly), Paalana Institute of Medical Sciences (Palakkad) and Charis Medical Mission (Muvattupuzha). Percentage of cases collected from Carithas hospital, Little Flower hospital, Paalana hospital and Charis hospital were 51. The various clinical profile was assessed such as Hb level , symptoms, total leukocyte count, platelet count prothrombin time etc. Conclusion: Practice of locally developed treatment protocol for optimised treatment of viper bite is required.
A prospective survey to ascertain the symptoms, health issues and subsequent otc mediction usage during menstruation among college students
Authors: George Mintu , Melbin Anagha , Dominic Mary Paul , Dominic Reshma , S Aysha Saja P , Vilapurathu Jobin Kunjumon 
Published: December 2023

Up to 14 days before your period begins, you might see bulging, Migraines, temperament swings, or other physical and enthusiastic changes. These Month to month side effects are known as premenstrual disorder, or PMS. Around 85% of ladies experience some level of PMS. A couple have more serious. Manifestations that disturb work or individual connections, known as premenstrual Dysphoric problem (PMDD). The etiology of these disorders remains uncertain, Research suggests that altered regulation of neurohormones and neurotransmitters is involved. Study Site: college students studying in Nirmala College of pharmacy Muvattupuzha. Design: The study will be done as an online survey using Google form. The Developed questionnaire consists of knowledge of premenstrual syndrome, Quality of Life, Medication. Conclusion: Premenstrual syndrome and premenstrual dysphoric disorder are Complex but highly treatable disorder and can improved by providing patient education on Premenstrual symptoms and counseling women on lifestyle interventions.
Guillain-barre syndrome: a paediatric case scenario in a tertiary care hospital at southern India
Authors: Joseph Nevin , Baby Alfin , George Eldhose Elias , S Gopikrishnan T , Joseph Merrin 
Published: December 2023

Background: During hospital ward rounds which was conducted as a part of Doctor of Pharmacy curriculum at Caritas Hospital, Thellakom, the first author got a chance to deal with a case of GBS.
Case:12 year old female patient admitted with complaints of weakness on both legs; later diagnosed by the neurologist with demyelinating poly neuropathy and Guillain-Barre Syndrome. Aim: The aim of this particular study was to study more about Guillain-Barre Syndrome which is an auto immune disorder involving peripheral nervous system which usually occurring very rarely, affects 1.55 people per 100,000 in the world’s population, and is characterised by flaccid paralysis of limbs. It typically happens as a result of an earlier illness or other triggering events that excite the immune system of the body and result in the development of various antibodies. Materials and Methods: Analyse various case reports published in various scientific databases like PubMed, Medline, CrossRef etc.
Results: This particular case was treated as follows: The treatment involves intravenous infusion of IVIg at a dose which varies according to the weight and severity of condition in each individual. Supplementation with Methyl cobalamin, Alpha lipoic acid, Levo-carnitine, and Vitamin E can improve the neural health and hasten the healing of nerve injuries.
Conclusion: Data till now tells us that out of all GBS diagnosed population, 80% have recovered completely, 15% of patients have shown some neurological disabilities, and 5% have succumb to death. Here, the therapy was successful and the patient got discharged from hospital.
In vitro anti-bacterial screening of drynariya quercifolia
Authors: T Ashna , Joy Lins Mary , Antony Siyara , J Sindu T , P Sheeba Mol , S Shiji T , George Soumya K 
Published: December 2023

Purpose: To make scientific validation with antibacterial activity of ethnomedical fern Drynaria quercifolia
Method and results: The various rhizome extracts were prepared with different solvents like benzene, Ethyl acetate, chloroform, Ethanol, water and their percentage yield were identified as 7,3,2.3,3.1&6.4 respectively and analytical parameters and histological studies undergone with this fern. Various preliminary phytoconstituent screening was carried out and the ethyl acetate extract showed the maximum presence of active constituents. Bacterial activity was screened with (gram-positive and gram-negative bacteria) and the zone of inhibition was measured. Compared with standard Ampicillin (250µgm) and ethyl acetate was more active and most effective against Bacillus subtilis.
Conclusion: In the antibacterial study ethyl acetate extract shows good antibacterial activity even in microgram quantities. It is found to be very effective against Bacillus subtilis. From the studies we have concluded that Drynaria quercifolia can be effectively used as an anti-bacterial agent.
A Comparative Analyses for NRZ and RZ to the Best Performance in Optisystem Program to Cary Data Over Fiber Optics
Authors: Hasan Hasan J. Hasan 
Published: December 2023

Data transmission has become an important issue in today's telecommunications world. In order to get the best results in sending and receiving data via optical cable, there are various ways to improve the performance of such systems. In this paper, the simulation program (optsystem)was used to design a communication system for data transmission over a fiber optic to compare the performances of the Return to the Zero (RZ) as well as Non Return to the Zero (NRZ) for different distances. The data was sent over distances ranging from 5 km to 50 km, with an increase of 5 km for each measurement. And recording the values of both Q. factor and (BER), as well as recording eye diagram figures for each case in order to compare to get the best performance for each distance used.
UJI AKTIVITAS ANTIBAKTERI DAN KLT BIOAUTOGRAFI EKSTRAK ETANOL DAUN AFRIKA (Vernonia amygdalina D.) TERHADAP Propionibacterium acnes
Authors: Hamdayani Lance Abidin  , Ismail Ismail  , Juniarvi  
Published: December 2023

Propionibacterium acnes umumnya ditemukan pada kulit dengan menghasilkan lipase yang memecahkan asam lemak bebas dari lipid kulit sehingga menimbulkan jerawat. Daun afrika (Vernonia amygdalina D.) memiliki banyak manfaat dalam dunia pengobatan tradisional maupun modern. Berbagai penelitian telah dilakukan menggunakan daun afrika yang terbukti memiliki efek maupun aktivitas seperti antibakteri dan antioksidan. Penelitian sebelumnya menunjukkan aktivitas ekstrak daun arfika dalam menghambat pertumbuhan bakteri Staphyllococcus aureus. Penelitian ini bertujuan untuk mengetahui aktivitas ekstrak etanol daun afrika terhadap bakteri P.acnes dan analisis KLT bioautografinya.Ekstraksi dilakukan dengan metode maserasi menggunakan etanol 70% sebagai penyari. Ekstrak etanol daun afrika yang dihasilkan diuji aktivitas antibakteri secara in-vitro dengan metode difusi agar menggunakan kertas cakram. Hasil pengujian aktivitas antibakteri pada masing-masing konsentrasi menunjukkan adanya diameter hambat rata-rata pada konsentrasi 1,25% (7,39 mm ± 0,04), konsentrasi 2,5% (7,53 mm ± 0,02) dan konsentrasi 5% (8,53 mm ± 0,02). Hasil analisis KLT bioautografi menggunakan fase gerak non-polar menunjukan bahwa ekstrak etanol daun afrika dapat menghambat pertumbuhan P.acnes. Aktivitas antibakteri ekstrak etanol daun afrika termasuk dalam kategori sedang.
FORMULASI DAN UJI AKTIVITAS ANTIBAKTERI SEDIAAN SERUM GEL ANTIJERAWAT EKSTRAK ETANOL DAUN KEMANGI (Ocimum basilicum L.)TERHADAP BAKTERI Staphylococcus aureus ATCC 25923 DENGAN VARIASI KONSENTRASI Hydroxyethyl Cellulose (HEC)
Authors: Ibnu Nugroho Saputra  , Opstaria Saptarini  , Fitri Kurniasari  
Published: December 2023

Daun kemangi mempunyai kandungan senyawa flavonoid yang berfungsi sebagai zat antibakteri mampu menghambat penyumbatan bahan keratin pada lapisan pilosebaseus yang dipicu oleh bakteri yaitu Staphylococcus aureus 25923. Penelitian ini bertujuan untuk memformulasikan ekstrak etanol daun kemangi menjadi sediaan serum gel antijerawat dengan memvariasikan konsentrasi Hydroxyethyl Cellulose (HEC) 0,5%, 0,75%, 1% dan menguji mutu fisik serta aktivitas antibakteri terhadap Staphylococcus aureus 25923.
Penelitian dilakukan dengan mengekstraksi daun kemangi menggunakan metode maserasi. Uji evaluasi fisik yang meliputi uji organoleptis, pH, viskositas, homogenitas, stabilitas serta uji aktivitas antibakteri pada sediaan serum gel antijerawat dengan variasi konsentrasi Hydroxyethyl Cellulose (HEC), F1 (0,5%), F2 (0,75%), F3 (1%). Metode difusi yang meliputi penyiapan sempel, pembuatan suspensi biakan, pembuatan media lempeng agar, identifikasi bakteri dan pengujian secara difusi.
Hasil penelitian menunjukkan bahwa formula dengan variasi konsentrasi Hydroxyethyl Cellulose (HEC), F1 (0,5%), F2 (0,75%), F3 (1%) memiliki aktivitas antibakteri namun pada formula 2 memiliki mutu fisik paling baik dan memiliki diameter zona hambat sebesar 13,00 mm sedangkan pada formula 1 memiliki zona hambat 14,93 mm dan formula 3 memiliki zona hambat sebesar 10,97 mm.
A FORMULASI GEL DARI EKSTRAK ETANOL 96% DAUN CENGKEH (Syzygium aromaticum L.)
Authors: Meva Parasari  , Rose Rose Intan Perma Sari , Farid  , Nori Wirahmi  , Oky Hermansyah  
Published: December 2023

Daun cengkeh merupakan bagian dari tanaman cengkeh yang jarang sekali dimanfaatkan berbanding sebaliknya dengan bunga cengkeh yang lebih dominan digunakan. Daun cengkeh mengandung komponenfenolik yang tinggi yaitu senyawa eugenol 70%-80% senyawa ini bersifat antibakteri. Tujuan penelitian ini adalah untuk mengetahui formulasi sediaan gel dari ekstrak etanol 96% daun cengkeh (Syzygium aromaticumL.) dan untuk melihat karakteristik dari sediaan gel ekstrak etanol 96% daun cengkeh (Syzygium aromaticumL.).
Pembuatan ekstrak etanol 96% daun cengkeh menggunakan metoda maserasi. Sediaan gel dibuat dengan variasi konsentrasi ekstrak F0 (0%), F1 (10%), F2 (20%), F3 (30%). Selanjutnya dilakukan evaluasi sifat fisik meliputi uji organoleptis, uji homogenitas, uji pH, uji daya sebar, uji viskositas, dan uji stabilitas yang dilakukan selama 4 minggu.
Hasil pengujian randemen ekstrak yang diperoleh adalah 14,37%. Uji pH menunjukkan gel memiliki rata-rata pH berkisar antara 4,62 - 6,01; uji daya sebar berkisar antara 5,6-7 cm; uji viskositas berkisar antara 6.256,45 – 8.232,63 cps; dan uji stabilitas yang dilakukan pada suhu 25oC–30oC selama 4 minggu menunjukkan sediaan gel stabil.
Taking into account the multidimensionality and multidirectional rotation of the shaft elements in the calculation of stationary vibration
Authors: Гежа Д.В. , Мелконян А.Л. , Николаев Д.А. 
Published: December 2023

Разработан алгоритм расчета параметров вибрации на базе ранее созданной математической модели поставленной задачи в которой производился учет влияния дополнительных факторов, осуществляющийся при расчете параметров вибрации квазиодномерной модели. На основе дискретного варианта метода парциальных откликов разработан алгоритм расчета параметров вибрации при учете вращения любого элемента вала в любом направлении и с любой угловой скоростью. Разработана соответствующая программа расчета параметров вибрации (амплитудные значения смещений, внутренних усилий и опорных реакций). Выполнена серия расчетов, позволивших провести анализ влияния вращения элементов валопровода (учет различный угловых скоростей) на собственные частоты, а также на амплитуду поперечного смещения, в характерной точке. Выполнена серия расчетов, позволивших оценить влияние направления вращения на параметры вибрации валопровода.
An algorithm for calculating vibration parameters has been developed on the basis of a previously created mathematical model of the task in which the influence of additional factors was taken into account, which is carried out when calculating the vibration parameters of a quasi-one-dimensional model. On the basis of a discrete version of the method of partial responses, an algorithm for calculating vibration parameters was developed taking into account the rotation of any element of the shaft in any direction and at any angular velocity. A corresponding program for calculating vibration parameters (amplitude values of displacements, internal forces and support reactions) has been developed. A series of calculations were performed that allowed analyzing the effect of rotation of the shaft elements (taking into account different angular velocities) on natural frequencies, as well as on the amplitude of the transverse displacement, at a characteristic point. A series of calculations were performed that allowed us to estimate the influence of the direction of rotation on the vibration parameters of the shaft line.
Application of numerical methods for the analysis of the methodology for calculating external load when a helicopter crashes
Authors: Коршунов В.А. , Макаров В.О. , Мудрик Р.С. , Пономарев Д.А. , Родионов А.А. 
Published: December 2023

В работе рассмотрено аварийное падение вертолёта на палубные конструкции морских объектов с ядерной энергетической установкой. В качестве проектной авария при оценке прочности конструкций объектов принято вертикальное падение вертолета, как наиболее опасное. Расчет параметров удара при падении выполнен с помощью двух процедур: инженерной методики и численных моделей метода конечных элементов. Инженерная методика строится решении задачи Тейлора об ударе жесткопластического тела о жесткую преграду с учетом распространения в телах ударных волн. Отмечаются основные допущения инженерной методики, которые определяют точность получаемых с ее помощью результатов. Более достоверные результаты анализа получены с помощью метода конечных элементов и явными схемами интегрирования нелинейных уравнений динамики. Использовалась подробная балочно-оболочечная конечно-элементная модель вертолета реальным распределением массовых и жесткостных характеристик фюзеляжа. По двум процедурам получены зависимости от времени скорости движения разрушающегося вертолета, контактной силы удара и потенциальной энергии деформируемых конструкций. Метод конечных элементов дополнительно дал картины деформирования силовых конструкций палубы и фюзеляжа. Результаты работы показали качественную и количественную оценку погрешностей инженерной методики и границы ее применимости.
The paper considers helicopter crash on deck structures of a nuclear vessel. The vertical fall of the helicopter as the most dangerous one is accepted as a design accident when evaluating the strength of the structures of the objects. Calculation of crash parameters during the fall is performed using two procedures: engineering methodology and finite element method. The engineering technique is based on the solution of the Taylor problem of the impact of a rigid-plastic body on a rigid barrier, taking into account the propagation of shock waves in the body. The main assumptions of the engineering methodology, which determine the accuracy of the results obtained with its help, are noted. More reliable results of the analysis are obtained using the finite element method and explicit schemes of integration of nonlinear equations of dynamics. A detailed beam-shell finite element model of the helicopter with real distribution of mass and stiffness characteristics of the fuselage was used. Time dependences of the collapsing helicopter velocity, contact impact force and potential energy of deformable structures were obtained by two procedures. The finite element method additionally gave the deformation patterns of the deck and fuselage force structures. The results of work have shown qualitative and quantitative estimation of errors of engineering methodology and limits of its applicability.