bluuebunny/crossref_metadata_2025 huggingface dataset:
Polycycloalkanes at the Helm: Exploring eFuel with Norbornyl Derivatives
Authors: Wang Feng , Chong Delano P
Published: May 2024

Sustainable aviation fuel (SAF, eFuel), predominantly composed of polycyclo-hydrocarbons, is a promising alternative to conventional fossil jet fuels, and offers cleaner options for achieving immediate carbon neutrality. This study focuses on norbornyl derivatives containing seven carbon atoms (C7Hx), including norbornadiene (NBD), quadricyclane (QC), norbornene (NBN), [2.2.1]propellane (PPL), and norbornane (NBA), are components of high energy density (HED) fuels or precursor molecules. Their chemical electronic structures reveal how energy is stored as HED compounds. The carbon nuclear magnetic resonance (13C-NMR) chemical shifts and C1s core electron binding energy (CEBE) properties were calculated using density functional theory (DFT). The results suggest that saturated C-C single σ-bonds and strained polycycloalkane structures act as primary energy storage for these hydrocarbons. This study provides valuable theoretical insights for the development of sustainable HED aviation fuel (eFuel).
Efficient Peptide Alkyl Thioester Synthesis from Advanced Thiols and Peptide Hydrazides
Authors: Di Adamo Julie , Ollivier Nathalie , Diemer Vincent , Melnyk Oleg
Published: May 2024

Peptide alkyl thioesters are versatile reagents in various synthetic applications, commonly generated from peptide hydrazides and thiols. However, a notable limitation is the need for a substantial excess of the thiol reagent, restricting usage to simple thiols. Here, we introduce an adapted procedure that significantly enhances thioester production with just a minimal thiol excess, facilitating the use of advanced thiol nucleophiles.
Unlocking the Potential of Nanostructured DyFeO3 Pho- tocatalyst for Environmental Remediation: Authenticity and Stability
Authors: Tarek Mohasin , Yasmeen Ferdous , Basith M. A.
Published: May 2024

Understanding the authentic nature and stability of a photocatalyst through diverse experiments and calculations is crucial for advancing environmental remediation. In this study, we synthesized nano-sized DyFeO3 particles with a porous structure, featuring an average pore size of 40 nm, to meticulously evaluate their photocatalytic efficacy in degrading aquatic pollutants under solar irradia- tion. These nanoparticles exhibit a direct band gap of 2.1 eV, rendering them well-suited for effective solar light absorption. Additionally, the conduction band minimum suggests potential participation in reduction reactions, while the valence band maximum is conducive to oxidation reactions. To confirm the authentic catalytic efficiency of DyFeO3 photocatalysts, we assessed their ability to de- grade both colored Rhodamine B (RhB) and colorless antibiotic Levofloxacin (LFX). Notably, their photocatalytic performance in decomposing the colorless pollutant LFX, alongside the colored RhB, eliminates any potential influence of dye sensitization. Moreover, the presence of DyFeO3 in the solution medium decreased the activation energy of LFX degradation from 38.4 kJ mol-1 K-1 to 34.1 kJ mol-1 K-1 , providing further evidence of their true catalytic function. Furthermore, their apparent Quantum Yield values of 28.94% and 32.83% for RhB and LFX degradation, respectively, demon- strate superior solar energy harvesting capability compared to commercially available TiO2. The high degradation efficiency, high quantum yield, and excellent stability of single-structured DyFeO3 nanoparticles indicate their considerable potential for large-scale production in photocatalytic and related applications.
A decarbonized vinyl chloride synthesis via selective oxidative coupling of methyl chloride
Authors: Wang Yue , Zou Shihui , Nabera Abhinandan , Pan Yang , Chen Xutao , Wei Kunkun , Hu Jingbo , Zhao Yilin , Liu Chengyuan , Liu Juanjuan , Wang Yong , Guillén-Gosálbez Gonzalo , Pérez-Ramírez Javier , Fan Jie
Published: May 2024

Selective coupling of C1 platform molecules to C2 olefins is a cornerstone for establishing a sustainable chemical industry based on non petroleum sources. Vinyl chloride (C2H3Cl), one of top commodity petrochemicals, is commercially produced from coal or oil derived C2 hydrocarbon (acetylene and ethylene) feedstocks with a high carbon footprint. Here, we report a decarbonized vinyl chloride synthesis via selective oxidative coupling of methyl chloride. This is enabled by a solid catalyst, featuring tungstate sub nanoclusters embedded in a zirconia matrix, which effectively captures CH2Cl radicals homogeneously generated in CH3Cl oxy pyrolysis and selectively couples them into C2H3Cl. In situ synchrotron based vacuum ultraviolet photoionization mass spectrometry provides direct experimental evidence of the homogeneous heterogeneous reaction mechanism. The process achieves methyl chloride conversion of 10 – 65% with a high vinyl chloride selectivity (60 – 75%) at a reaction temperature (600 – 750 °C), which is much lower than the traditional pyrolysis (> 850 °C). It also delivers a stable performance (at a vinyl chloride yield of ca. 30%) with no deactivation observed during a 50 hour test. Furthermore, combining with reaction of methanol and HCl to produce methyl chloride, we establish a methanol to vinyl chloride (MTV) route with the potential for significant reductions in climate change impact (24%) and cost (38%) compared to the state of the art ethylene based balanced process. A more remarkable 237% reduction in climate change impacts can be anticipated in the future oriented green scenario for MTV process primarily attributed to the utilization of renewable C1 feedstocks that results in negative net contributions to the overall impacts.
Confinement Induced Alteration in Interfacial Energy
Authors: Singh Nitish , Roy Arka , Ghatak Animangsu
Published: May 2024

Hypothesis: When a liquid is confined between two parallel plates, the pressure field at its bulk alters, because of the concave meniscus at the air-water interface. For an aqueous surfactant solution in contact with an oil, like an oil-in-water emulsion, this effect can alter the surfactant concentration at the interface of the two phases thereby changing the interfacial energy. Alteration of interfacial energy is expected to affect morphology of a complex system consisting of three immiscible phases. Experiments: A drop of crosslinkable silicone liquid was placed on a glass slide and was immobilized by partial crosslinking. An aqueous solution of surfactant, with SiO2 microspheres dispersed in it, was dispensed on this drop to create a liquid pool. It was then confined between two parallel plates to create a meniscus. Finding: Consequently, the particles got embedded at the oil-water interface to different extent, depending on the degree of confinement. Force balance along tangents to different interfaces showed that the interfacial energy of silicone-water (aqCTAB 0.3 mM) interface increases from 33.3 ± 0.5 mJ/m2 for an unconfined system to 45.4 ± 2.2 mJ/m2 for the confined one. This effect then elucidates how confinement alters complex emulsion morphologies in multiphase systems.
PREPARATION AND PORE STRUCTURE OF NI-CR-MO-CU FIRST ORDER GRADIENT POROUS MATERIALS
Authors: Kuang Yijian , Li Jie , Liu Wenkang , Junsheng Yang Junsheng Yang , Hasan Shah Muhammad Rehan
Published: May 2024

The support of Ni-Cr-Mo-Cu porous material was prepared by the activation reaction sintering method using Ni, Cr, Mo and Cu element powders as raw materials, and then by brushing the element powders with different particle sizes on the surface of the support, after vacuum sintering, Ni-Cr-Mo-Cu gradient pore size porous material was obtained. Phase composition, morphology, element distribution and pore structure parameters were tested by X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), Electronic Differential System (EDS), pore size tester and other test methods were used to characterize. The results show that the Ni-Cr-Mo-Cu gradient porous material membrane layer is relatively complete and the elements are evenly distributed. The maximum pore size of the matrix is 13.3 μm, and permeability is 96.3 m3·m-2·h-1·KPa-1. When the D50 of the brushed powder is 20 μm, the maximum pore size of the first order gradient pore size porous material is 10.4 μm, the permeability is 83.7 m3·m-2·h-1·KPa-1. Compared with the matrix material, the permeability of the first order gradient porous material decreased by 13.1%, and the filtration accuracy was improved on the basis of retaining high permeability.
PREPARATION AND PORE STRUCTURE OF NI-CR-MO-CU POROUS MATERIALS WITH SECOND ORDER GRADIENT PORE SIZE
Authors: Xiao Gan , Tan Siwei , Wang Baogang , Jiang Wenkai , Yang Junsheng
Published: May 2024

The activation reaction sintering method was utilized to produce a Ni-Cr-Mo-Cu porous matrix using Ni, Cr, Mo, and Cu powders as raw materials. The vacuum sintering process was then used to create a Ni-Cr-Mo-Cu porous material with larger particle sizes painted on the surface of the matrix. The resulting material with first order gradient pore size was used as the matrix, which was then painted with fine particle size Ni, Cr, Mo, and Cu to obtain second order gradient pore size porous material. The phase, morphology, element distribution, and pore structure parameters of these materials were analyzed, and it was found that they have a uniform element distribution and a complete pore structure. The first order porous material had a maximum pore size of 10.4 μm and a permeability of 83.7 m3·m-2·h-1·KPa-1, while the second border porous material had a maximum pore size of 7.2 μm and a permeability of 78.9 m3·m-2·h-1·KPa-1. Compared to the first order gradient pore size, the second order gradient pore size of the porous material decreased by 30.7%, but the permeability remained basically unchanged, indicating that the permeability of the second order gradient pore size porous material had significantly improved. In summary, using the activation reaction sintering method, a Ni-Cr-Mo-Cu porous material was fabricated, which was later used to construct a gradient pore size porous material with improved permeability. The resulting material had a uniform element distribution and a complete pore structure, making it highly promising for potential applications in filtration, catalysis, and sensing fields.
EXPERIMENTAL STUDY ON THE APPLICATION OF MACHINE LEARNING METHOD IN CATALYTIC MATERIALS
Authors: Zhang Aihua
Published: May 2024

Machine learning has emerged as a powerful tool for analyzing complex data sets and making predictions in a wide range of applications, including catalysis. Bycombining statistical methods, algorithms, and computational power, machine learning can help identify patterns and relationships in catalytic systems that are difficult or impossible to discern using traditional approaches. This can lead to more efficient and effective catalyst design, optimization, and prediction of catalytic activity. Machine learning has already been successfully applied to various aspects of catalysis, including catalyst discovery, reaction mechanism identification, and kinetic modeling. The continued integration of machine learning with catalysis research holds great promise for advancing our understanding of catalytic systems and developing new and improved catalysts for important industrial processes.
STRUCTURAL EVOLUTION AND PROPERTIES OF CR COATINGS ON RINGS DEPOSITED BY HIGH POWER PULSED MAGNETRON SPUTTERING
Authors: Yang Chao , Hao Juan , Wang Baichuan , Mohammed Ibrahim Shaikh , Jiang BaiLing , Ding Yuhang , Wang Xiaoyan , Dong Dan , Zhang Jing
Published: May 2024

The ring is a key component of the high-speed ring spinning machine, which is in sliding friction environment for a long time. A chromium coating with high hardness is usually prepared on rings surface by electroplating technology to improve the mechanical properties and the working life of rings in the current industrial field. However, the environ-mental pollution associated with electroplating technology has restricted its industrial production, and it is urgent to find a non-polluted coating preparation technology. In this paper, an environmentally friendly high power pulsed magnetron sputtering technology was used to prepare the pure Cr coatings with different thickness on the ring surface. The mi-crostructure, deposition rate, adhesion between film and substrate and tribological property of coatings were character-ized by different means. The results showed that with the prolongation of deposition time, the degree of crystallization of coatings was gradually enhanced, and the surface microstructure was gradually transformed from small and dispersed irregular polygonal structure to circular arc irregular cellular structure. When the deposition time were 120 mins, the film thickness was about 6.4 μm, and the average and instantaneous deposition rates of Cr coating were 53 nm/min and 267 nm/min, respectively The coating had the best film-substrate adhesion, low friction coefficient of 0.41 and the best wear resistance (mass wear rate of 1.8×10-4 g/s).
DESIGN AND OPTIMIZATION OF MECHANICAL STRUCTURES FOR WALL-CLIMBING ROBOTS
Authors: Zeeshan Zahir Muhammad , Chen Ling , Xie Xuanben , Chen Xinjian , Zheng Yuzhu , Sui Rongjuan
Published: May 2024

There is a problem of insufficient adsorption capacity of the wall-climbing robot on the steel wall during its movement. The paper designs a magnetically adsorbed wall-climbing robot with triangular track wheels, which includes a walking structure, a drive structure, and a magnetically adsorbed structure. Firstly, the robot was designed using 3D mapping software to determine a triangular crawler wheel travel and permanent magnet adsorption solution. The mechanical model of the wall climbing robot on a steel wall is then analyzed statically to obtain the minimum adsorption force to be adsorbed on the steel wall. Finally, the magnet structure is analyzed by ANSYS magnetic simulation software to optimize the structure of the permanent magnet and design the most suitable height of the magnetic track wheel, providing a reference for the design and optimization of the permanent magnet adsorption structure of the wall climbing robot.
Korelasi CO2 Terhadap Suhu dan kelembapan Dengan Multivariate Linear Regression
Authors: Adhiwibowo Whisnumurti , Warsito Budi , Wibowo Adi
Published: May 2024

Sekarang ini keadaan udara di daerah perkotaan  sudah sangat tercemar oleh polusi. Semakin banyak gas CO2 yang mulai menyebar ke udara dapat menyebabkan meningkatnya suhu udara.. Hal ini dikarenakan bahwa CO2 dapat meningkatkan suhu di permukaan bumi. CO2 mempunyai peran yang dapat menyebabkan pemanasan global karena gas CO2 mempunyai  di udara bebas dan dapat menyerap panas Matahari sehinggs suhu Bumi meningkat dampak pencemaran udara seperti asap kendaraan, asap rokok, asap dari pembakaran pabrik, dan kontribusi terbesar dalam pemanasan global mempunyai pengaruh sebesar 50% dan mempunyai lama hidup 50 200 tahun di atmosfer. Peningkatan suhu udara dan konsentrasi CO2 merupakan masalah yang sering terjadi pada daerah perkotaan dimana salah satunya adalah meningkatnya jumlah kendaraan bermotor sehingga konsentrasi CO2 juga ikut meningkat. Dengan melihat korelasi CO2 Terhadap Suhu dan kelembapan Dengan mengunakan Multivariate Linear Regression, kita dapat melihat bagaiman korelasi antara suhu serta kelembapan. Regresi linier multivariat merupakan model regresi linier dengan lebih dari satu variabel respon Y berkorelasi dan satu atau lebih variabel prediktor X. Hasil penelitian menunjukkan bahwa  Dalam penelitian tersebut dikatakan bahwa terdapat korelasi antara CO2 suhu serta cahaya.

  
PRIMARY PULMONARY MYCOBACTERIOSIS IN A CAT: IMMUNOHISTOCHEMICAL AND HISTOPATHOLOGICAL EVALUATION
Authors: Dağar Osman , Ateş Mehmet Burak , Ortatatli Mustafa , Oruç Ertan
Published: May 2024

In this case report, primary pulmonary mycobacteriosis in a domestic cat was assessed using histopathological and immunohistochemical methods. The cat was admitted to a private veterinary clinic and presented with hyporexia, lethargy, and dyspnea with an abdominal component. For diagnostic purposes, thorax radiography was performed. Radiographic lung imaging showed the presence of opaque foci that were widely distributed throughout the lung. The cat’s condition gradually deteriorated, and the cat died 2 hours after being brought to the clinic. Following owner consent, gross post-mortem examination was performed immediately after death at the same clinic. White foci measuring 2–10 mm in diameter covered the surface of the lungs and were present throughout the parenchyma, mostly multifocally and occasionally coalesc­ing. No other macroscopical pathological findings were observed in other organs or on the skin. Some of the lung tissue with macroscopic lesions underwent further histo­pathological and immunohistochemical examination. Multifocal to coalescing areas of caseous necrosis (without a fibrous capsule) with, karyorrhectic nuclei, and numerous macrophages were observed. Ziehl-Neelsen staining revealed many acid-fast bacteria. Immunohistochemical staining revealed positive immunostaining for Mycobacterium spp. This case study highlights the importance of considering zoonotic risks in cats diagnosed with primary pulmonary mycobacteriosis.
Primarna pljučna mikobakterioza pri mački: imunohistokemična in histopatološka ocena
Izvleček: V tem poročilu o primeru je bila ocenjena primarna pljučna mikobakterioza pri domači mački z uporabo histopatoloških in imunohistokemičnih metod. Mačka je bila sprejeta v zasebno veterinarsko kliniko zaradi simptomov hiporeksije, letargije in dispneje z abdominalno komponento. Za diagnostične namene je bila opravljena rentgenska preiskava prsnega koša, ki je pokazala prisotnost motnih žarišč, široko razporejenih po pljučih. Stanje mačke se je posto­poma slabšalo, umrla je dve uri po prihodu v kliniko. Po privolitvi lastnika je bila takoj po smrti opravljena raztelesba. Bela žarišča, premera od 2 do 10 mm, so prekrivala površino pljuč. Prisotna so bila po celotnem parenhimu večinoma multifokalno in mestoma zlivajoče. V drugih organih in na koži ni bilo opaznih drugih makroskopskih patoloških sprememb. Nekatere dele pljučnega tkiva z makroskopskimi spremembami smo dodatno histopatološko in imunohistokemično pregledali. Opazili smo multifokalna do zlivajoča se območja kazeozne nekroze (brez fibrozne kapsule) s karioznimi jedri in številnimi makrofagi. Ziehl-Neelsenovo barvanje je razkrilo številne acidofilne bakterije. Imunohistokemično barvanje je pokazalo pozitivno imunobarvanje za Mycobacterium spp. To poročilo o primeru poudarja pomen upoštevanja zoonotskih tveganj pri mačkah z diagnozo primarne pljučne mikobakterioze.
Ključne besede: mikobakterioza mačk; imunohistokemija; histopatologija; pluča
“DEVLET” VE “POLİS” KAVRAMLARINA TOPLUMCU GERÇEKÇİ BİR BAKIŞ: TUZ VE EKMEK
Authors: Başeğmez Çetin Aybige
Published: May 2024

Toplumcu Gerçekçi Türk edebiyatının 1940 kuşağındaki başarılı temsilcilerinden Ömer Faruk Toprak’ın tek romanı Tuz ve Ekmek, 1945-1946 yıllarında Türkiye’nin siyasi, sosyal atmosferini, savaş sonrası ekonomik durumunu ve İkinci Dünya Savaşı’yla yürürlüğe giren sıkıyönetimin gündelik hayattan basın yayın hayatına kadar uzanan derin tesirlerini yansıtmaktadır. Romanda toplumcu dünya görüşünü benimseyen gençlerin maruz kaldığı polis takibi, gözaltı ve şiddet, dönemin siyasi atmosferi ile birleşmektedir. Devlet ve devletin silahlı gücünü temsil eden polisin, roman kahramanlarına uyguladığı baskı üzerinden Tuz ve Ekmek’te devlet ve polis ile ilgili Marksist felsefeden etkilenen bir yorum oluşturulduğu dikkat çekmektedir. Marksizm’e göre devlet, ekonomik ilişkilerden doğan bir sınıfsal baskı ve sömürüyü devam ettirmek için bir aygıt, polis ise sistemin sömürüsünün devamını sağlayan bir baskı aygıtı, silahlı güç olarak kabul edilmektedir. Bu bağlamda Tuz ve Ekmek ile Marksist felsefe arasında bir paralellik fark edilmektedir. Çalışmada bu paralellikten hareketle öncelikle kaynaklardan yararlanılarak Marksizm’de devlet ve polis kavramlarına değinilmiş, daha sonra da Tuz ve Ekmek romanında bu görüşlerin yansıması tespit edilmeye çalışılmıştır.
Pemanfaatan Olahan Air Nira Menjadi Gula Aren Briket di Desa Sesaot, Lombok Barat
Authors: Pradityatama Maharsa , Kurnia Fikrihadi , Suteja Suteja , Kusuma A.A. Ngurah Nara
Published: May 2024

Pohon enau (Arenga pinnata), dikenal juga sebagai pohon aren, merupakan salah satu dari banyak jenis flora yang ada di Indonesia. Tanaman ini memiliki fungsi produksi yang menghasilkan berbagai komoditi yang bernilai ekonomi tinggi dan berpotensi jika diusakan dengan secara baik. Seluruh bagian tanaman dapat diolah menjadi berbagai produk pangan dan non pangan. Wilayah NTB terdapat sentra produksi gula aren dan merupakan produk unggulan nasional dengan kualitas yang baik. Salah satu tempat produksi gula aren yaitu rumah produksi bapak Saiful Bahri di Desa Sesaot Lombok Barat. Gula aren yang diproduksi menggunakan cetakan tradisional berupa batok kelapa, hasil yang didapatkan berupa bentuk setengah bola dengan berat kurang lebih 1,5 kg. Harga yang ditawarkan dengan bentuk tersebut seharga Rp 20.000. Pada kegiatan pengabdian ini akan dilakukan inovasi terhadap pengolahan air nira menjadi gula aren briket.
Peningkatan Kesiapsiagaan Menghadapi Gempa dan Tsunami Melalui Simulasi pada Siswa SD di Kabupaten Lombok Tengah
Authors: Saidah Humairo , Negara I Dewa Gede  Jaya , Rohani Rohani , Nurchayati Nurchayati , Rachmanto Tri
Published: May 2024

SDN 1 Tampah dan SMPN8 Satap adalah dua sekolah dalam satu atap yang ada di Dusun Tampah Desa Mekar Sari, Kabupaten Lombok Tengah. Lokasi sekolah ini berdekatan dengan pantai Selatan Lombok yang rawan gempa disertai tsunami. Jumlah siswa yang banyak dan keadaan gedung sekolah yang mulai rusak menambah tingkat kerawanan sekolah ini jika sewaktu-waktu terjadi gempa dan tsunami. Hal ini menunjukkan betapa pentingnya dilakukan pembekalan untuk peningkatan kesiapsiagaan siswa dan guru melalui penyuluhan dan simulasi. Kegiatan penyuluhan dan simulasi bekerjasama  dengan  BPBD Kabupaten Lombok Tengah dengan khalayak sasaran siswa kelas 6 SD dan seluruh siswa SMP serta para guru. Kegiatan berlangsung dengan lancar dan tertib, dan diikuti dengan penuh antusias oleh guru dan siswa. Kegiatan ini telah memberikan pengetahuan dasar tentang cara menyelamatkan diri jika gempa terjadi saat di sekolah. Baik para guru maupun siswa sangat merasakan manfaat dari kegiatan ini dan bertambah pengetahuan dan kesiapsiagaannya menghadapi bencana gempa dan tsunami.
Penyuluhan dan Pelatihan Maintenance Mesin Diesel Satu Silinder Type Horisontal
Authors: Made Wirawan , Sutanto Rudy , Rachmanto Tri , I.G.N Yudhyadi , Kaliwantoro Nur
Published: May 2024

Dewasa ini perkembangan teknologi semakin pesat di berbagai bidang dengan tujuan untuk efisiensi dan efektivitas. Tidak terkecuali pada bidang pertanian menggunakan mesin diesel satu silinder sebagai motor penggerak pada peralatan penunjangnya . Pada saat ini kelompok tani dharma karya memiliki beberapa peralatan yang berpengerak mesin diesel. Dari diskusi dengan ketua kelompok tani disampaikan beberapa masalah dalam pemeliharaan mesin diesel. Maka tim pengabdian pada masyarakat Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram dirasa perlu untuk memberikan penyuluhan dan pelatihan terhadap kelompok tani tentang cara memelihara dan servis ringan terhadap peralatannya. Materi pelatihan disampaikan secara diskusi dengan beberapa anggota kelompok tani. Pada saat diskusi ada bebrapa masalah dan pertanyaan  dalam penggunaan mesin yang dimilki oleh kelompok tani misalnya, Salah satu mesin dieselnya, jika bahan bakarnya kurang dari setengah tangki mesin sulit hidup, hal-hal apa yang perlu dilakukan agar mesin diesel awet dan tahan lama.Secara umum kegiatan pengabdian ini dapat berjalan dengan baik dan lancar dengan adanya kerjasama antara tim pengabdian dan perwakilan kelompok tani dimana  Pekasek kelompok tani yang memfasilitasi tempat untuk pelaksanaan kegiatan ini, perwakilan dari kelompok tani untuk mengikuti kegiatan ini.
DESAFIOS ENFRENTADOS PELO SUS E NA OFERTA DA PROFILAXIA PRÉ-EXPOSIÇÃO SEXUAL (PREP) CONTRA O HIV PARA INDIVÍDUOS EM SITUAÇÃO VULNERABILIDADE.
Authors: Suckow Lucas Gabriel Skerratt , Teixeira Nicole Jorge , barboza ohara de oliveira
Published: May 2024

Em um mundo de avanços na medicina e prevenção, a Profilaxia Pré-Exposição (PrEP) surge como uma ferramenta promissora contra o Vírus da Imunodeficiência Humana (HIV). Sua eficácia em reduzir os risco
Atitude do Católico perante as Testemunhas de Jeová
Authors: Gruen Wolfgang
Published: May 2024

Deus, nosso Pai e Salvador, quer que todos os homens sejam salvos e cheguem ao conhecimento da verdade (1 Tim 2,4). Um dia, lá no céu, queremos encontrar também os que aqui na terra discordaram da nossa doutrina religiosa, ou que até nos atacaram. Embora não o admitam, também as Testemunhas têm, cada uma, sua alma imortal para salvar. Ajudemo-las com caridade, ao mesmo tempo que trabalhamos para nos opormos aos seus erros e à sua influência maléfica...
PENGEMBANGAN SISTEM FRONT END PADA PMTCINVENTORY BERBASIS MOBILE MENGGUNAKAN METODE WATERFALL
Authors: Muhimmah Izzati , Milano Muhammad Khalifah
Published: May 2024

The company inventory is one of the important aspects that receives primary attention in a company. Generally, companies with a vast and diverse inventory cater to clients and local employees. Therefore, company inventory becomes a primary concern for various businesses. However, in some companies, inventory tracking still relies on software such as Microsoft Word and Microsoft Excel. This makes the recording and management of company inventory less efficient. Based on this issue, it is concluded that companies need an electronic inventory system or e-inventory. Hence, the development of a mobile-based inventory system is undertaken. This development utilizes the Waterfall method and the Flutter framework. The stages in the Waterfall method include requirements, design, implementation, testing, and maintenance. The advantage of using this method is that the work is carried out gradually and systematically. The results of the research conducted using the Waterfall method include the creation of five pages or user interfaces: Dashboard, Login, Home, Saya, and Detail Alat. Each page has different functionalities. The user interface is created using the Flutter framework and tested using the black box testing method, resulting in alignment between user preferences and the application created.
Behavioral Patterns of Social Media Users toward Policy: A Scientometric Analysis
Authors: Satria Teguh , Nurmandi Achmad
Published: May 2024

This research explores the behavioural patterns of social media users in response to policies, bridging a gap in the literature by providing in-depth insights into the interaction between user behaviour and public policies relating to social media. An important contribution of this research lies in its holistic approach to understanding how social media users respond to various public policies and their impact on their behaviour. This research aims to explore the influence of the interaction between social media and public policy, understanding how user behaviour on these platforms affects responses to government policies. This study uses qualitative research methods with a scientometric approach. The main results underline the crucial role of social media not only as a communication channel but also as a significant influence tool in shaping public opinion and policy. These studies show that social media has a dual potential, which can support professional and community development, as well as influence government policies and actions through social interaction and information dissemination. However, negative impacts are also evident, such as in the spread of fake news that can significantly alter political views. The practical implications of this research emphasise the need for proactive and systematic government strategies in using social media for the dissemination of accurate information and combating fake news, thereby improving the effectiveness of policy communication and responsiveness to public needs.
Central-Local Government Relations in Regional Planning and Budgeting in Indonesia: Between Autonomy and Control
Authors: Fatimah Mira , Haryanto Haryanto , Dwi Retnandari Nunuk
Published: May 2024

This article analyzes the relationship between central and local governments in regional planning and budgeting policies, while exploring the direction of central government control over regions through regional planning and budgeting policies. The issue of relations between central and regional governments in regional planning and budgeting is finding the right balance between autonomy and control. The research methods used are regulatory content analysis and interviews with policymakers. The results showed that the central government uses planning and budgeting to control the implementation of local government affairs and functions through guidance, detection, coercion, and evaluation of existing regulations. These findings fill the discussion gap regarding central government control of regional governments not only through guidance and supervision but through planning and budgeting policies. This study provides insight into the forms of central government control over regional governments, contributing to the trend of central and regional government relations. The practical benefit of this research is as input in improving regional planning and budgeting system policies for the government.
E-Government Issues in Developing Countries Using TOE and UTAUT Frameworks: A Systematic Review
Authors: Alfiani Husna , Kurnia Aditya Silfa , Lusa Sofian , Indra Sensuse Dana , Wibowo Putro Prasetyo Adi , Indriasari Sofiyanti
Published: May 2024

E-government, or electronic government, refers to the utilization of information and communication technology to improve and simplify the provision of government services and information to citizens, businesses, and government agencies. The adoption and implementation of e-government may be seen as an imperative for governments in developing nations. This research observes the intricacies of e-government implementation in developing countries, aiming to identify and analyze pivotal issues. By employing the preferred reporting items for systematic review and meta-analysis method, this research discovers the intricate landscape of e-government implementation. Also, utilizing the Technology-Organization-Environment and Unified Theory of Acceptance and Use of Technology frameworks, the study uncovers substantial issues rooted in organizational limitations like limited awareness and inadequate top management support. The scarcity of essential infrastructure, notably reliable internet access, exacerbates these issues, deepening the digital divide between urban and rural areas. These findings emphasize the crucial role of clear regulations and unwavering top management support. Success in technology adoption hinges on the synergy between organizational, technological, and environmental factors. This thorough investigation illuminates the complex dynamics associated with the implementation of e-government in developing countries, providing invaluable insights for policymakers, practitioners, and researchers navigating the complexities of digital governance.
BCBimax Biclustering Algorithm with Mixed-Type Data
Authors: Izzati Hanifa , Indahwati Indahwati , Djuraidah Anik
Published: May 2024

The application of biclustering analysis to mixed data is still relatively new. Initially, biclustering analysis was primarily used on gene expression data that has an interval scale. In this research, we will transform ordinal categorical variables into interval scales using the Method of Successive Interval (MSI). The BCBimax algorithm will be applied in this study with several binarization experiments that produce the smallest Mean Square Residual (MSR) at the predetermined column and row thresholds. Next, a row and column threshold test will be carried out to find the optimal bicluster threshold. The existence of different interests in the variables for international market potential and the number of Indonesian export destination countries is the reason for the need for identification regarding the mapping of destination countries based on international trade potential. The study's results with the median threshold of all data found that the optimal MSR is at the threshold of row 7 and column 2. The number of biclusters formed is 9 which covers 74.7% of countries. Most countries in the bicluster come from the European Continent and a few countries from the African Continent are included in the bicluster.
Optimalisasi Pembelajaran: Panduan Digitalisasi Bahan Ajar bagi Guru di SDN 03 Situjuah Banda Dalam
Authors: Gina Khairunnisa
Published: May 2024

Education is a field that continues to develop along with technological developments. One effort to optimize learning is by digitizing teaching materials. Learning in the digital era requires teachers to optimize the use of technology in compiling teaching materials. This article aims to provide a guide to digitizing teaching materials for teachers at SDN 03 Situjuah Banda Dalam, with a focus on optimizing learning. This research provides a guide to digitizing teaching materials for teachers at SDN 03 Situjuah Banda Dalam. The research method used is qualitative research, with data collection techniques through literature study, observation, and interviews with teachers who have experience in digitizing teaching materials. Apart from qualitative research methods, the methods also used are literature studies and field observations to evaluate teacher needs and learning conditions in the school. The results of this research are a step-by-step guide regarding the process of digitizing teaching materials, as well as strategies for optimizing learning using digital teaching materials and providing practical guidance in utilizing digital technology to improve the quality of learning at SDN 03 Situjuah Banda Dalam. It is hoped that this guide can be a reference for teachers at SDN 03 Situjuah Banda Dalam and other schools in facing the era of digitalization of education.
FORMULASI DAN UJI STABILITAS FISIK SEDIAAN GEL EKSTRAK ETANOL DAUN SIRSAK (Annona muricata L.) MENGGUNAKAN VARIASI KONSENTRASI HPMC
Authors: Sakdiyah Yasminatul
Published: May 2024

Obat jerawat yang mengandung antibiotik sintetik dapat menimbulkan berbagai efek yang tidak diinginkan seperti iritasi dan resistensi. Daun sirsak (Anona muricataÂ  L.) mengandung golongan senyawa metabolit sekunder yang memiliki efek antiinflamasi dan antibakteri yang berpotensi sebagai antijerawat. Dibutuhkan sediaan yang lebih praktis dan awet dalam penyimpanan. Gel dipilih karena memberi sensasi rasa dingin pada kulit dan mudah diaplikasikan di kulit. Gelling agent berpengaruh pada stabilitas gel. Penelitian ini bertujuan untuk mengetahui konsentrasi HPMC (Hydroxy Propyl Methyl Cellulose) yang menghasilkan sediaanÂ  gel yang stabil dan hasil stabilitas fisik gel yang diperoleh. Sediaan gel dibuat dengan konsentrasi ekstrak daun sirsak 12% dengan variasi konsentrasi Hydroxy Propyl Methyl Cellulose yaitu 2,5%, 3% dan 3,5%. Konsentrasi Hydroxy Propyl Methyl Cellulose ditentukan secara trial and error. Masing-masing formula dibuat dan dilakukan uji sifat fisik yang meliputi organoleptis, homogenitas, pH, viskositas, daya lekat dan daya sebar. Gel ekstrak daun sirsak diperoleh stabil selama 3 siklus pengujian meliputi organoleptis, homogenitas, viskositas, daya lekat dan daya sebar. pH gel stabil selama 3 siklus untuk konsentrasi Hydroxy Propyl Methyl CelluloseÂ  2,5% dan 3,5% namun pada formula dengan konsentrasi Hydroxy Propyl Methyl Cellulose 3%Â  pH gel tidak stabil selama 3 siklus.Kata kunciÂ Â Â Â Â Â Â Â  : Formulasi dan stabilitas, gel, ekstrak daun sirsak, HPMC (Hydroxy Propyl Methyl Cellulose)
HUBUNGAN TINGKAT PENGETAHUAN IBU HAMIL TENTANG ULTRASONOGRAFI DALAM PEMERIKSAAN KEHAMILAN DENGAN PERILAKU PEMANFAATAN ULTRASONOGRAFI
Authors: Suryaningsih Nukita Fibriyana , Nirwana Betanuari Sabda , Wahyu Wigati Putri , Saidah Halimatus
Published: May 2024

Ultrasonografi (USG) adalah salah satu upaya pemeriksaan kandungan atau Ante Natal Care (ANC) pada ibu hamil untuk mengetahui kondisi janin dalam tubuh. Menurut World Health Organization (WHO) (2017). USG merupakan moda pencitraan dengan menggunakan gelombang suara frekuensi tinggi yang menghasilkan gambaran irisan melintang dari janin. Menurut Callen (2008), pemeriksaan kandungan dengan USG dapat mengetahui ada atau tidaknya kehamilan, hidup atau tidaknya janin, lokasi dari plasenta, dan umur gestasi.USG merupakan moda pemeriksaan kehamilan yang aman bagi janin jika digunakan dengan baik. Tujuan dari penelitian ini adalah mengetahui tingkat pengetahuan ibu hamil tentang Ultrasonografi dan perilaku Perilaku Pemanfaatannya untuk menunjang pemeriksaan kehamilan.Rancangan penelitian yang digunakan adalah berdasarkan lingkup penelitian menggunakan rancangan inferensial, berdasarkan tempat penelitian termasuk jenis penelitian lapangan, berdasarkan waktu pengumpulan data termasuk jenis rancangan penelitian crossectional, berdasarkan tujuan penelitian termasuk jenis rancangan penelitian Analitik Korelasi, berdasarkan sumber data termasuk rancangan penelitian Primer. Analisa data yang digunakan adalah dengan Chi â€“ Square. Hasil penelitian menunjukkan bahwa p value sebesar 0.000 kurang dari 0,05 artinya terdapat hubungan yang signifikan antara pengetahuan dan perilaku Perilaku Pemanfaatan USG. Berdasarkan kekuatan hubungan yaitu 0.637 artinya kekuatan hubungan kuat, dengan korelasi positif dimana semakin banyak ibu hamil dengan pengetahuan yang rendah, maka banyak ibu hamil yang tidak memanfaatkan fasilitas penunjang yaitu Ultrasonografi.
UJI AKTIVITAS ANTIDIABETES EKSTRAK DAUN CEMPEDAK (Artocarpus integer (Thunb.) Merr.) pada MENCIT (Mus musculas)
Authors: Fitriah Ruzaida , Bin Abd Kadir Apt. Mujtahid , Sulistyowati Yuni
Published: May 2024

Secara empiris daun Cempedak (Artocarpus integer (Thunb.) Merr.) menurut pengobatan ayurveda dapat mengobati penyakit diabetes. Dan beberapa penelitian ekstrak tanaman genus Artocarpus memiliki khasiat sebagai antidiabetes.
Jenis penelitian ini adalah jenis Kuantitatif yang bersifat eksperimental laboratorium, dengan melakukan ekstraksi sampel daun Cempedak (Artorcarpus integer (Thunb.) Merr.) menggunakan etanol. Uji antidiabetes dari ekstrak daun Cempedak (Artorcarpus integer (Thunb.) Merr.) terhadap penurunan kadar glukosa darah diamati dengan menggunakan alat glucometer. Hasil data yang diperoleh dianalisis secara statistik menggunakan ANOVA (analysis of variance) pada taraf kepercayaan 95% dengan parameter selisih penurunan kadar glukosa darah.
Penelitian dibagi dalam lima kelompok perlakuan yaitu kontrol positif (glibenklamid 5mg/KgBB), kontrol negatif (Na-CMC 1%) , kelompok perlakuan I dengan dosis 75mg/20gBB, perlakuan II dengan dosis 150 mg/20gBB, perlakuan III dengan dosis 300mg/20gBB. Hasil penelitian menunjukkan bahwa ekstrak daun Cempedak kulit memiliki efek antidiabetes dan dosis 150 mg/20gBB dan 300mg/20gBB merupakan dosis yang memiliki efek antidiabetes dan dosis 300mg/20gBB merupakan dosis efektif sebagai antidiabetes pada mencit model hiperglikemia yang sebanding dengan glibenklamid.
GAMBARAN NILAI HEMATOKRIT DAN JUMLAH TROMBOSIT PADA PASIEN TUBERKULOSIS PARU YANG MENDAPAT PENGOBATAN OBAT ANTI TUBERKULOSIS DI RSUD GAMBIRAN KOTA KEDIRI
Authors: Muslikha Iza Dwi , Kasimo Elfred Rinaldo , Savitri Lisa , Sanjaya Rochmad Kris
Published: May 2024

Tuberkulosis menjadi penyebab kematian akibat penyakit menular setelah Human Imunnodeficiency Virus (HIV). TB adalahÂ  penyakit yang dipicu oleh basil Mycobacterium tuberculosis. Tujuan penelitian ini adalah untuk mengetahui indikator anemia dan kelainan trombosit terhadap pesien TB paru yang mendapat pengobatan OAT di RSUD Gambiran Kota Kediri. Metode yang digunakan dalam penelitian ini ialah deskriptif dengan desainnya cross sectional. Peneilitian ini dilaksanakan pada bulan Mei-Agustus 2022. Populasi dari penelitian ini ialah seluruh pasien TB paru yang mendapat pengobatan OAT yang ada di catatan rekam medik pada bulan Januari-Desember 2021 sejumlah 43 sampel yang sesuai dengan kriteria inklusi dan ekslusi. Teknik sampling yang dipakai ialah purposive sampling. Hasil penelitian ini adalah Indikator dari anemia adalah penurunan nilai hematokrit yang disebabkan oleh efek dari terapi OAT. Sedangkan indikator dari kelainan trombosit adalah yaitu terjadinya penurunan (trompositopenia) dan peningkatan jumlah trombosit (trombositosis) yang disebabkan oleh efek dari terapi OAT. Sebagian besar pasien mengalami penurunan nilai hematokrit sebanyak 33 orang (77 %). Sebanyak 25 orang (58 %) memiliki nilai trombosit yang normal, 3 orang (7 %) mempunyai nilai trombosit yang rendah dan 15 orang (35 %) memiliki nilai trombosit yang tinggi.
PERBEDAAN EFEKTIFITAS PROMOSI KESEHATAN DENGAN LEAFLET DAN CERAMAH TERHADAP PENGETAHUAN TENTANG ASI EKSKLUSIF PADA IBU HAMIL
Authors: Anita Erna , Akhmad  , Lestari Sri , Gunandar
Published: May 2024

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Estado de conservación de los bosques de algarrobos en La Ciénaga y Huaco (Provincia de San Juan, Argentina): un aporte para el ordenamiento territorial de bosques nativos
Authors: Gil Ania , Alvarez Juan Agustín , Rojas Facundo , Cesca Erica , Alvarez Leandro , Zalazar Gualberto , Fili Juan , Agüero María Laura , Villagra Pablo Eugenio
Published: May 2024

Este trabajo tiene como objetivo principal describir la estructura y estado de conservación de los algarrobales de Prosopis flexuosa y Prosopis chilensis en torno a la localidad de Huaco y en la depresión adyacente, del Río Bermejo (en el departamento de Jáchal, San Juan). Actualmente, este género ha cambiado su nombre por el de Neltuma. Para ello se generó información de base para la conservación y el manejo sustentable de estos bosques nativos, muy poco estudiados, a partir de un inventario que tuvo en cuenta parámetros dasonómicos, como el estado de conservación y el tamaño y forma de los árboles. Dicha información se relaciona con una tipología de bosques, realizada a partir de clasificaciones de imágenes satelitales. Los resultados se expresan en una propuesta de cuatro tipos de bosques nativos para esta localidad y alrededores. Esta clasificación incluye, además de características de la superficie cubierta por bosque nativo, la identificación de los diferentes usos y disturbios por los que ha estado impactado en las últimas décadas. Por último, se discuten, de forma preliminar, diferentes propuestas de manejo y de ordenamiento territorial para estos bosques del norte sanjuanino.
Speaking in Riddles on Trisolaris: Communicating Liberal Democracy to the Disillusioned
Authors: Golubeva Marija
Published: May 2024

It is hard to overestimate the effect of The Three-Body Problem and the ensuing trilogy by Liu Cixin1 on the collective imagination. Not many works of science fiction have achieved such global fame as The Three-Body Problem trilogy, also known under the common title Remembrance of Earth’s Past,2 and even fewer have had a three-part documentary series produced by BBC Studios explore the science behind the fiction.3According to the IMDB, at least 65 million people have watched the docuseries. Netflix has now commissioned Game of Thrones showrunners David Benioff and D.B. Weiss to develop a TV series,4 to be released in January 2024—despite protests from several US Republican senators who had noted the writer’s controversial statements on Chinese policies against the Uighurs in Xinjiang. The first book of the trilogy had sold more than 8 million copies by the end of 2020. On Reddit, fans discuss which disciplines one has to study in real life to approximate ‘cosmic sociology’, a fictional academic field that one of the central characters, Luo Ji, develops in his work.
Cracking the Nut in Iraq
Authors: Bell Paul
Published: May 2024

In May 2023 I listened to two of Britain’s most prominent political commentators, Alastair Campbell and Rory Stewart, interviewing a former high-ranking government official, Jonathan Powell, for their Leading podcast—a spinoff from their highly successful podcast The Rest Is Politics. After thirty minutes, the subject of Iraq came up. All three had been closely involved in the 2003 invasion: Powell as chief of staff to then prime minister Tony Blair, and Campbell as Blair’s director of communications and strategy. Both had been in the thick of policy- and decision-making at the highest level of government as Britain prepared for war. Stewart’s experience had been utterly different; having completed a walking tour of north-central Afghanistan in 2002, he had served as deputy governor of two provinces in the marsh regions of southern raq, confronting the occupation’s consequences and the ground truth of security, reconstruction, and peacebuilding in a country hollowed out by oppression, conflict, and now occupation.
Asociación Mexicana de Neuropsicología. 25 años de práctica clínica e investigación
Authors: Hernández Galván Adela , Téllez Alanís Bernarda , Villa Rodríguez Miguel Ángel
Published: May 2024

Esta obra conmemora el 25º aniversario de la Asociación Mexicana de Neuropsicología, A. C. (AMN). El libro está dividido en seis apartados. Los dos primeros abordan temas generales y transversales. En la tercera parte se tratan temáticas relacionadas con la neuropsicología infantil y del adolescente. El apartado cuatro está dedicado al envejecimiento normal y patológico. Los capítulos del quinto apartado abordan algunas patologías típicas del quehacer neuropsicológico. Mientras que en la sexta y última parte se tratan temas relacionados con las nuevas tecnologías.
Debates contemporáneos sobre la eficacia de los derechos humanos en la globalización
Authors: Martinez Regino Roberto , Ramírez Medina Héctor Alejandro , Olivares Brito Raúl Alberto , Álvarez León José Antonio
Published: May 2024

En esta obra se abordan temáticas vinculadas a las demandas sociales que se han convertido en una fuente de interés y de preocupación para la academia y que, además, son el resultado del esfuerzo constante y persistente de posturas científicas que han permitido la apertura y el continuo desarrollo de líneas de investigación para la innovación del conocimiento susceptible de aplicación. Hoy en día, cualquier actividad humana a nivel individual o social, así como las actividades de la sociedad civil organizada o incluso de las instituciones del Estado están necesariamente vinculadas con los dos grandes ejes de la obra que tiene el lector en sus manos: los derechos humanos y la globalización. En ese orden de ideas, no es de sorprendernos que las investigaciones académicas aquí presentadas sean visiones contemporáneas de cambios coyunturales y de propuestas de cambio a la estructura de las sociedades y que se interrogan sobre la vigencia del Contrato Social.