bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analisis Pesan Dakwah di Channel Youtube Teladan Cinema pada Project Singlelillah
Authors: Nisa Khairun , Arief Suyyud , Ibdalsyah Ibdalsyah 
Published: September 2021

<p class="15bIsiAbstractBInggris"><em>In this day and age, da'wah is not only done in the mosque by ustadz from mimbar to mimbar. With the availability of highly advanced media in the 4.0 era, da'wah can be delivered in various ways, one of which is through social media. This research was conducted to find out whether the da'wah-da'wah carried out through social media really contains da'wah messages or not. In this thesis will discuss the da'wah messages in the video project "Singlelilah" uploaded on the YouTube channel Teladan Cinema and what da'wah methods were used by the Teladan Cinema team in making this video.The research method used by the author is descriptive qualitative, that is, research that produces descriptive data in the form of written words from the person being observed. The data collection techniques used were observation, direct interview techniques to sources, and documentation. From the research that has been done, the video project "Singlelillah" contains all categories of da'wah messages that are related to the propositions of the Al-Qur'an and Al-Hadith.</em><em> Th</em><em>is research used is the method of da'wah bi al hikmah</em><em>.</em></p><p class="16aJudulAbstrak"><strong>Abstrak</strong></p><p class="16bIsiAbstrak">Pada zaman sekarang, dakwah tidak hanya dilakukan di Masjid oleh seorang pencermah dari mimbar ke mimbar. Dengan ketersediaan media yang sudah sangat maju di era 4.0 ini dakwah bisa dilakukan dengan berbagai cara salah satunya melalui media sosial. Penelitian ini dilakukan untuk mengetahui apakah dakwah-dakwah yang dilakukan melalui sosial media benar-benar mengandung pesan dakwah atau tidak. Dalam penelitian ini akan dibahas pesan-pesan dakwah yang ada pada <em>video project </em>“Singlelilah” yang diunggah di channel youtube Teladan Cinema serta metode dakwah apa yang digunakan oleh team Teladan Cinema dalam membuat <em>video </em>ini. Metode penelitian yang digunakan oleh penulis adalah deskriptif kualitatif, yaitu penelitian yang menghasilkan data deskriptif berupa tulisan kata-kata dari orang yang diamati. Teknik pengumpulan data yang digunakan yakni dengan observasi, teknik wawancara secara langsung pada narasumber, dan dokumentasi. Dari hasil penelitian yang telah dilakukan, <em>video project </em>“Singlelillah” mengandung semua kategori pesan dakwah yang memiliki keterkaitan dengan dalil dari Al-Qur’an maupun Al-Hadits. Metode yang digunakan adalah metode dakwah bi al hikmah.</p>
Evaluación del rendimiento térmico y estrategias bioclimáticas de un edificio Universitario en clima tropical húmedo
Authors: Chen Austin Miguel , Castillo Milva , Carrizo Keivan , De Mendes Da Silva Ángela , Mora Dafni 
Published: September 2021

La característica principal de los climas tropicales es la alta humedad y altas temperaturas, lo cual hace necesario evaluar las alternativas para mejorar el rendimiento térmico y eficiencia energética, usando estrategias bioclimáticas pasivas en las edificaciones. Por esta razón, el trabajo de investigación busca evaluar las estrategias bioclimáticas de un edificio existente en el Campus Víctor Levi Sasso de la Universidad Tecnológica de Panamá y proponer recomendaciones. Se utilizaron herramientas como la carta solar y la rosa de los vientos, que permiten determinar la incidencia solar en las diferentes fachadas del edificio y el comportamiento de los vientos para aprovechar al máximo la ventilación natural. Los resultados llevaron a proponer un nuevo edificio (denominado EO), en donde las estrategias bioclimáticas aplicadas fueron la orientación (orientado alargado en el eje Este-Oeste) y el sombreamiento como la aplicación de vidrio de doble acristalamiento con baja emisividad, aleros y cortinas para el edificio EO. Por último, se realizó la comparación de ambos edificios por medio de su rendimiento térmico, en términos de las temperaturas de aire y superficies interiores y exteriores de los edificios, así como la humedad relativa, el porcentaje predicho de insatisfechos (PPD) y el valor medio previsto (VMP) de Fanger.
Propuesta de materiales reciclables para la fabricación de placas vehiculares en la República de Panamá
Authors: Marín Nacarí , Serrano María , Serrano María , Jaén Alexander 
Published: September 2021

Con base al último registro realizado por el Instituto Nacional de Estadística y Censo (INEC) en el año 2018, se registraron 1 847 547 vehículos, los cuales deben tener sus placas en regla para poder circular libremente. En Panamá, la renovación de las placas vehiculares es realizada cada año. Anteriormente, no se tenía un control absoluto sobre las placas de años pasados, con una cantidad exorbitante de aluminio desperdiciado por año. Se le suma la producción de basura con un aproximado de 2.00 toneladas diarias, que en conjunto aumenta la contaminación ambiental. El objetivo principal de este artículo es presentar una propuesta para el aprovechamiento de materiales reciclables en la fabricación de placas vehiculares en la República de Panamá. En este documento se evalúan las propiedades mecánicas de dos materiales: aluminio reciclado y rPET, para llegar a la conclusión que, con la implementación de distintos procesos para su adecuación en láminas, pueden ser fácilmente utilizables para el proceso, reduciendo así la cantidad de desechos que se posee.
Complement Inhibition Targeted to Injury Specific Neoepitopes Attenuates Atherogenesis in Mice
Authors: Dai Shen , Liu Fengming , Ren Mi , Qin Zhongnan , Rout Namita , Yang Xiao-Feng , Wang Hong , Tomlinson Stephen , Qin Xuebin 
Published: September 2021

Rationale:Previous studies have indicated an important role for complement in atherosclerosis, a lipid-driven chronic inflammatory disease associated to oxidative stress in the vessel wall. However, it remains unclear how complement is activated in the process of atherogenesis. An accepted general model for complement activation in the context of ischemia reperfusion injury is that ischemia induces the exposure of neoepitopes that are recognized by natural self-reactive IgM antibodies, and that in turn activate complement.Objective:We investigated whether a similar phenomenon may be involved in the pathogenesis of atherosclerosis, and whether interfering with this activation event, together with inhibition of subsequent amplification of the cascade at the C3 activation step, can provide protection against atherogenesis.Methods and Results:We utilized C2scFv-Crry, a novel construct consisting of a single chain antibody (scFv) linked to Crry, a complement inhibitor that functions at C3 activation. The scFv moiety was derived from C2 IgM mAb that specifically recognizes phospholipid neoepitopes known to be expressed after ischemia. C2scFv-Crry targeted to the atherosclerotic plaque ofApoe−/−mice, demonstrating expression of the C2 neoepitope. C2scFv-Crry administered twice per week significantly attenuated atherosclerotic plaque in the aorta and aortic root ofApoe−/−mice fed with a high-fat diet (HFD) for either 2 or 4 months, and treatment reduced C3 deposition and membrane attack complex formation as compared to vehicle treated mice. C2scFv-Crry also inhibited the uptake of oxidized low-density-lipoprotein (oxLDL) by peritoneal macrophages, which has been shown to play a role in pathogenesis, and C2scFv-Crry-treated mice had decreased lipid content in the lesion with reduced oxLDL levels in serum compared to vehicle-treated mice. Furthermore, C2scFv-Crry reduced the deposition of endogenous total IgM in the plaque, although it did not alter serum IgM levels, further indicating a role for natural IgM in initiating complement activation.Conclusion:Neoepitope targeted complement inhibitors represent a novel therapeutic approach for atherosclerosis.
Case Report: Interventricular Septal Hematoma Complicating Left Bundle Branch Pacing Lead Implantation
Authors: Zheng Rujie , Wu Shengjie , Wang Songjie , Su Lan , Ellenbogen Kenneth A. , Huang Weijian 
Published: September 2021

Background: Left bundle branch pacing (LBBP) is a novel physiological pacing and previous studies have confirmed the feasibility and safety of it. The incidence of complications in LBBP is relatively low as reported. Here we present a case of interventricular septal hematoma complicating LBBP lead implantation.Case summary: LBBP was achieved for treatment of high-grade atrioventricular block in a 67-year-old female. Chest pain began 1 h after implantation when the electrocardiogram showed ST-T changes. Then bedside echocardiography confirmed the formation of interventricular septal hematoma. Urgent coronary angiography showed the contrast agent retention and overflow in the interventricular septum. The symptom was relieved half an hour later. Echocardiogram performed 2 h later revealed the size of the hematoma was the same as before. The electrocardiography, coronary angiography and CTA confirmed the resolution of the hematoma at 1-month follow-up. Pacing parameters and cardiac function remained stable during 6-month follow-up.Conclusion: This is the first reported case describing the clinic features and management of interventricular septum hematoma complicating LBBP. The importance of routine echocardiograms after implantation for identifying the hematoma should be highlighted.
Sensitivity Analysis of Flash Flood Hazard on Sediment Load Characteristics
Authors: Liu Hongxi , Yi Yujun , Jin Zhongwu 
Published: September 2021

Changing climate has raised attention toward weather-driven natural hazards, such as rain-induced flash floods. The flooding model is an efficient tool used in flash flood warning and hazard management. More and more evidence showed significant impacts of sediment on hydrodynamics and flooding hazard of flash flood. But little information is available regarding flooding hazard sensitivity to sediment characteristics, which hampers the inclusion of sediment characteristics into the flash flood warning system and hazard management. This study used a 1D model to simulate flood hazards. After calibrating and validating the hydrodynamic model, we carried out simulations to test the sensitivity of flood hazard to sediment characteristics like inflow point, size distribution, and concentration. Our results showed that sediment from highly erosive slopes affects the flooding hazard more than sediment from watershed. This is particularly true when sediment particles are fine particles with a medium size of 0.06 mm. When medium particle size of sediment increased above 1 mm, most of the sediment particles are deposited in the river and we see little effect on flooding hazard downstream. Sediment concentration significantly influenced the flooding hazard but was less important than sediment inflow point and medium particle size. Our study suggested considering more characteristics than concentration when including sediment particles into the flash flood warning system.
Experimental Investigation on the Cleaning Effect and Influence Rule of Hydrogen Peroxide–Acetic Acid on Lead–Bismuth Eutectic Alloy
Authors: Huang Xi , Pang Bo , Zhou Xuelong , Yin Yuan 
Published: September 2021

During the refueling process of lead–bismuth eutectic (LBE)–cooled fast reactors, lead–bismuth alloy can easily adhere to the surface of the fuel rod clads when spent fuel assemblies are unloaded from the reactor core. For some designs, the lead–bismuth alloy attached on the spent fuel rods will be cleaned via physical or/and chemical methods prior to their transportation, storage, and reprocessing. In this article, the cleaning effect of a washing lotion composed of hydrogen peroxide (H2O2) aqueous solution and concentrated acetic acid (CH3COOH) as the main components on LBE was experimentally investigated. By adjusting the composition ratio of the washing lotion and the reaction temperature, the law of their influence on the cleaning effect of LBE was determined. The optimal washing lotion composed of 30 Vol% hydrogen peroxide aqueous solution as oxidant, 40 Vol% concentrated acetic acid as acid, and 30 Vol% ultrapure water as the solvent was proposed based on experimental investigations. The optimal working temperature range was also obtained. The reaction intermediate product was characterized with the XRD analysis in order to understand the reaction mechanism. The composition of the released gas (even in a slight amount) was also analyzed with gas chromatography. The hydrogen concentration in the released gas was found to be lower than the detection limit of gas chromatography (10 ppm). Since the explosion limits of hydrogen at atmospheric pressure are between 3.95 and 75.73 Vol%, the risk of possible hydrogen explosion is concluded to be extremely low. Therefore, no special treatment of the released gas is required even in a large-scale industrial platform. Furthermore, corrosion effect of the washing lotion on austenitic stainless steel components was tested as well and found to be negligibly small. The relative mass loss of the thin-walled stainless steel samples immersed in the washing lotion was found to be less than 0.5% after an experimental duration of 144 h, which facilitates sufficient cleaning time in future industrial applications.
Influence of Self-Pulsation on Atomization Characteristics of Gas-Centered Swirl Coaxial Injector
Authors: Jiang Chuanjin , Xie Yuan , Gao Yuchao , Chu Wei , Tong Yiheng , Li Xiuqian , Nie Wansheng 
Published: September 2021

There is a lack of understanding of the spray characteristics of gas-centered swirl coaxial (GCSC) injectors during self-pulsation occurs. Therefore, the self-pulsation of a GCSC injector was investigated experimentally in this study. Experiments were conducted at atmospheric pressure with filtered water and dried air supplied through a propellant feed system. A back-lighting high-speed photography technique was used to capture unsteady spray features. A laser-based particle size analyzer (LPSA) was used to measure the size of the droplets in the spray. The effects of recess and gas-liquid ratio on spray self-pulsation were analyzed. It was found that the recess of the injector strongly determines the spray pattern. When spray self-pulsation occurs without recess, both the center and periphery of the spray oscillate. With an increase in the mass flow rate of the gas, the boundary between the center and the periphery of the spray becomes more noticeable. Meanwhile, small droplets in the spray center oscillate, with the periphery of the spray being characterized by a periodic “shoulder.” Under the same operating conditions but with a small recess (2 mm), the spray adheres to the injector faceplate. With a larger recess (7 mm), when spray self-pulsation occurs, the spray periodically forms “shoulder” and “neck,” similar to the behavior of self-pulsation in a liquid-centered coaxial injector. Therefore, it can be concluded that spray self-pulsation enhances atomization at the center of the spray to a certain extent. However, atomization becomes worse in the periphery with an oscillating spray.
Simulated Effect of Carbon Black on High Speed Laser Transmission Welding of Polypropylene With Low Line Energy
Authors: Ali M. Mahmood , Dave Foram , Sherlock Richard , Mcilhagger Alistair , Tormey David 
Published: September 2021

Laser welding is an important manufacturing tool for a wide variety of polymer products including consumer goods, automotive components and medical devices. The laser process parameters and polymer properties have a significant impact on weld quality. Due to higher heat density generated by the laser transmission welding (LTW) technique, defining a set of suitable parameters for LTW of thermoplastics and composites can be challenging. In this work the effect of carbon black along other control parameters has been investigated for high speed welding using a laser source of 980 nm wavelength with low line energy. In this work, the finite element method (FEM)-based software COMSOL Multiphysics is used to create a 3D transient thermal model for LTW of isotactic polypropylene (iPP) and its composites with carbon black (CB) of concentrations ranging from 0.5 wt% to 1.5 wt%. The design of experiments based on Box-Behnken design (BBD) is used to organize the simulation experiments and mathematical models are developed based on multiple curvilinear regression analysis on the simulation findings. Independent control variables include the laser power, welding speed, beam diameter, and carbon black content in the absorbent polymer. The maximum weld temperature, weld width, and weld depth within the transmissive and absorptive layers are considered as dependent response variables. Furthermore, sensitivity analysis is carried out to investigate the impact of carbon black along with other independent variables on the responses. The welding feasibility check was performed on the basis of melt and degradation temperature of the materials, and weld depths of transmissive and absorptive layers. It has been observed that the composites containing 0.5 wt% and 1 wt% of CB can be welded successfully with neat iPP. However, due to a degradation temperature problem, composites having a larger proportion of CB (&gt;1 wt%) appear to be more difficult to weld.
Activities, Housing Situation and Other Factors Influencing Psychological Strain Experienced During the First COVID-19 Lockdown in Switzerland
Authors: Hansmann Ralph , Fritz Livia , Pagani Anna , Clément Garance , Binder Claudia R. 
Published: September 2021

Background: The Coronavirus disease 2019 (COVID-19) crisis and the corresponding first nationwide lockdown from mid-March to 10 May 2020 engendered considerable psychological strain among people in Switzerland. This study analyzes determinants of changes in subjective levels of psychological strain experienced during the lockdown.Methods: An online survey conducted as part of a larger mixed methods study examined the material and emotional aspects of individual reactions to the lockdown from a socio-ecological perspective. Participants (N = 5932) were asked about their personal and employment status, housing features, changes in various activities (e.g., physical activity, watching TV, social media use) and aspects of mental distress and well-being.Results: A substantial share of participants reported to feel depressed (33%) and anxious (43%) more often during the COVID-19 lockdown than before, whereas significantly (p &lt; 0.001) less persons reported a decrease of these negative feelings (depressed 17%; anxious 14%). Women, single people, students and people who lost their jobs or were temporally unemployed due to the lockdown experienced a particularly strong increase of subjective psychological strain. Important residential factors reducing subjective psychological strain were the general comfort of the housing situation and having a private garden or multiple types of outdoor space. Considering leisure activities, the strongest positive psychological effect resulted from increased physical activities, followed by reading and cooking. However, 45% of the participants reported a decreased frequency of physical activity during the lockdown compared to before, whereas significantly less persons (26%) reported a corresponding increase (p &lt; 0.001).Conclusion: Consistent with other studies, the results indicate a substantial reduction of subjective psychological well-being of the population during the first COVID-19 lockdown in Switzerland. The psychological burdens which the participants experienced differ depending on personal characteristics and situational factors. Negative psychological and economic consequences and gender inequalities should accordingly be carefully considered and actively prevented when designing COVID-19 measures. Supportive economic and social, cognitive and behavioral psychological interventions need to be designed and implemented to maintain the well-being of residents during lockdown.
Health Information Systems in the COVID-19 Pandemic: A Short Survey of Experiences and Lessons Learned From the European Region
Authors: Negro-Calduch Elsa , Azzopardi-Muscat Natasha , Nitzan Dorit , Pebody Richard , Jorgensen Pernille , Novillo-Ortiz David 
Published: September 2021

Introduction:The COVID-19 crisis provides an opportunity to reflect on what worked during the pandemic, what could have been done differently, and what innovations should become part of an enhanced health information system in the future.Methods:An online qualitative survey was designed and administered online in November 2020 to all the 37 Member States that are part of the WHO European Health Information Initiative and the WHO Central Asian Republics Information Network.Results:Nineteen countries responded to the survey (Austria, Belgium, Croatia, Czech Republic, Finland, Greece, Iceland, Ireland, Israel, Italy, Kazakhstan, Latvia, Lithuania, Romania, Russian Federation, Sweden, Turkey, United Kingdom, and Uzbekistan). The COVID-19 pandemic required health information systems (HIS) to rapidly adapt to identify, collect, store, manage, and transmit accurate and timely COVID-19 related data. HIS stakeholders have been put to the test, and valuable experience has been gained. Despite critical gaps such as under-resourced public health services, obsolete health information technologies, and lack of interoperability, most countries believed that their information systems had worked reasonably well in addressing the needs arising during the COVID-19 pandemic.Conclusion:Strong enabling environments and advanced and digitized health information systems are vital to controlling epidemics. Sustainable finance and government support are required for the continued implementation and enhancement of HIS. It is important to promote digital solutions beyond the COVID-19 pandemic. Now is the time to discuss potential solutions to obtain timely, accurate, and reliable health information and steer policy-making while protecting privacy rights and meeting the highest ethical standards.