bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sodium Alginate Modified Hydroxyapatite Nanotubes as a Novel Ecofriendly Additive for Preparation of Polyethersulfone Hybrid Ultrafiltration Membranes
Authors: Mu Yongfeng , Liu Jun , Feng Han , Wang Guibin 
Published: January 2021

Background::
Hydrophilic nanomaterials have been extensively exploited their applications
in the field of hybrid water treatment membranes. However, some of the modification process
to nanomaterials may be complicated, and the nonselective pores caused by the poor compatibility
between nanoparticles and the polymer matrix impair the rejection efficiency for ultrafiltration application.
Thus, it is highly desirable to develop a kind of effective nano dopant with favorable
compatibility by a facile way for the preparation of ultrafiltration membranes.

Objective::
The aim of this study was to fabricate a novel environmentally friendly and low-cost
nano additive with good compatibility for the preparation of ultrafiltration membranes.

Methods::
Hydroxyapatite nanotubes were prepared via a biomimetic process, and then SA was
coated on the surface of hydroxyapatite nanotubes. Subsequently, a series of hybrid ultrafiltration
membranes were fabricated with different amounts of modified HANTs and polyethersulfone
(PES).

Results::
Exhaustive characterizations were conducted for the membranes, including hydrophilicity,
porosity, mean pore size, morphologies and UF performance test. The highest water flux of the hybrid
membranes displayed 1.9 times that of the original PES membrane. Meanwhile, the hybrid
membrane with 0.2% hydroxyapatite nanotubes obtained elevated antifouling ability, achieving a
flux recovery ratio of 85.6%.

Conclusion::
The facile coating of SA endowed the nanotubes improved hydrophilicity and meanwhile
enhanced the compatibility between PES and HANTs. This work provides a facile way in the
construction of green nanofillers and promising results in the preparation of hybrid UF membranes.
Endorphinergic Enhancement Attenuation of Post-traumatic Stress Disorder (PTSD) via Activation of Neuro-immunological Function in the Face of a Viral Pandemic
Authors: Blum Kenneth , Modestino Edward J. , Baron David , Brewer Raymond , Thanos Panayotis , Elman Igor , Badgaiyan Rajendra D. , Downs B. William , Bagchi Debasis , McLaughlin Thomas , Bowirrat Abdalla , Roy A. Kenison , Gold Mark S. 
Published: January 2021

Introduction:Polymorphic gene variants, particularly the genetic determinants of low dopamine function (hypodopaminergia), are known to associate with Substance Use Disorder (SUD) and a predisposition to PTSD. Addiction research and molecular genetic applied technologies supported by the National Institutes of Health (NIH) have revealed the complex functions of brain reward circuitry and its crucial role in addiction and PTSD symptomatology.Discussion:It is noteworthy that Israeli researchers compared mice with a normal immune system with mice lacking adaptive immunity and found that the incidence of PTSD increased several-fold. It is well established that raising endorphinergic function increases immune response significantly. Along these lines, Blum’s work has shown that D-Phenylalanine (DPA), an enkephalinase inhibitor, increases brain endorphins in animal models and reduces stress in humans. Enkephalinase inhibition with DPA treats Post Traumatic Stress Disorder (PTSD) by restoring endorphin function. The Genetic Addiction Risk Severity (GARS) can characterize relevant phenotypes, genetic risk for stress vulnerability vs. resilience. GARS could be used to pre-test military enlistees for adaptive immunity or as part of PTSD management with customized neuronutrient supplementation upon return from deployment.Conclusion:Based on GARS values, with particular emphasis on enhancing immunological function, pro-dopamine regulation may restore dopamine homeostasis. Recognition of the immune system as a “sixth sense” and assisting adaptive immunity with Precision Behavioral Management (PBM), accompanied by other supportive interventions and therapies, may shift the paradigm in treating stress disorders.
Improved Control Volume Method for Thermoelastic Analysis of Functionally Graded Solids
Authors: Xu Bing-Bing , Liang Yu , Cui Miao 
Published: January 2021

Aims:
In this work, an improved control Volume finite element method (ICVFEM) is
proposed and implemented for thermoelastic analysis in functionally graded materials (FGMs) at a
steady state.

Methods and Results:
Different from the conventional CVFEM, the sub-control Volume used in
the proposed method is circular in the intrinsic coordinate. The advantages of the new integral
domain are: (i) the complex integration path can be avoided: (ii) the method is very suitable for many
types of elements. High-order shape functions of eight quadrilateral (Q8) elements are used to obtain
the unknown variables and their derivatives. Besides, material properties in a functionally graded
structure are calculated by the high-order shape functions based on the properties defined at the node.

Conclusion:
To verify the convergence and accuracy of the proposed method, three numerical
examples with analytical solutions are illustrated by using the conventional CVFEM and FEM at
the same time.
COVID-19–Induced Fear in Infoveillance Studies: Pilot Meta-analysis Study of Preliminary Results
Authors: Geronikolou Styliani , Chrousos George 
Published: January 2021

Background
The World Health Organization named the phenomenon of misinformation spread through social media as an “infodemic” and recognized the need to curb it. Misinformation infodemics undermine not only population safety but also compliance to the suggestions and prophylactic measures recommended during pandemics.

Objective
The aim of this pilot study is to review the impact of social media on general population fear in “infoveillance” studies during the COVID-19 pandemic.

Methods
The PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) protocol was followed, and 6 out of 20 studies were retrieved, meta-analyzed, and had their findings presented in the form of a forest plot.

Results
The summary random and significant event rate was 0.298 (95% CI 0.213-0.400), suggesting that social media–circulated misinformation related to COVID-19 triggered public fear and other psychological manifestations. These findings merit special attention by public health authorities.

Conclusions
Infodemiology and infoveillance are valid tools in the hands of epidemiologists to help prevent dissemination of false information, which has potentially damaging effects.
Quality of Physical Activity Apps: Systematic Search in App Stores and Content Analysis
Authors: Paganini Sarah , Terhorst Yannik , Sander Lasse Bosse , Catic Selma , Balci Sümeyye , Küchler Ann-Marie , Schultchen Dana , Plaumann Katrin , Sturmbauer Sarah , Krämer Lena Violetta , Lin Jiaxi , Wurst Ramona , Pryss Rüdiger , Baumeister Harald , Messner Eva-Maria 
Published: January 2021

Background
Physical inactivity is a major contributor to the development and persistence of chronic diseases. Mobile health apps that foster physical activity have the potential to assist in behavior change. However, the quality of the mobile health apps available in app stores is hard to assess for making informed decisions by end users and health care providers.

Objective
This study aimed at systematically reviewing and analyzing the content and quality of physical activity apps available in the 2 major app stores (Google Play and App Store) by using the German version of the Mobile App Rating Scale (MARS-G). Moreover, the privacy and security measures were assessed.

Methods
A web crawler was used to systematically search for apps promoting physical activity in the Google Play store and App Store. Two independent raters used the MARS-G to assess app quality. Further, app characteristics, content and functions, and privacy and security measures were assessed. The correlation between user star ratings and MARS was calculated. Exploratory regression analysis was conducted to determine relevant predictors for the overall quality of physical activity apps.

Results
Of the 2231 identified apps, 312 met the inclusion criteria. The results indicated that the overall quality was moderate (mean 3.60 [SD 0.59], range 1-4.75). The scores of the subscales, that is, information (mean 3.24 [SD 0.56], range 1.17-4.4), engagement (mean 3.19 [SD 0.82], range 1.2-5), aesthetics (mean 3.65 [SD 0.79], range 1-5), and functionality (mean 4.35 [SD 0.58], range 1.88-5) were obtained. An efficacy study could not be identified for any of the included apps. The features of data security and privacy were mainly not applied. Average user ratings showed significant small correlations with the MARS ratings (r=0.22, 95% CI 0.08-0.35; P<.001). The amount of content and number of functions were predictive of the overall quality of these physical activity apps, whereas app store and price were not.

Conclusions
Apps for physical activity showed a broad range of quality ratings, with moderate overall quality ratings. Given the present privacy, security, and evidence concerns inherent to most rated apps, their medical use is questionable. There is a need for open-source databases of expert quality ratings to foster informed health care decisions by users and health care providers.
Simulation of Nitrogen Release from Chitosan/Local Organic Fertilizer Composite as Slow-Release Fertilizer
Authors: Istiani Alit , Kusumastuti Yuni , Rochmadi Rochmadi 
Published: January 2021

The application of conventional fertilizer, especially for inorganic fertilizer, has low efficiency due to the fast release of its nutrients into the environment. Also, it has a high operating cost caused by multiple fertilization processes in one of the planting periods. One of the possibilities to overcome this limitation is applying organic fertilizer as a slow-release fertilizer (SRF). The objective of this research is to prepare SRF by modifying the formulation of local organic fertilizer with chitosan as a binder. The rate of the nitrogen release was studied and simulated with MATLAB. The result shows that the nitrogen loss by water leaching decreased up to 85% in chitosan/organic fertilizer rather than the fertilizer without chitosan. By MATLAB simulation, the release of nitrogen has followed the proposed mathematical model in which the mass transfer occurred dominated by diffusion mechanism with the diffusivity coefficient of 1.61x10-5 cm2/s.Keywords: chitosan; organic fertilizer; slow-release fertilizer A B S T R A KPenggunaan pupuk anorganik masih memiliki efisiensi rendah yang disebabkan oleh cepatnya pelepasan nutrisi pupuk ke lingkungan sehingga nutrisi tersebut tidak dapat terserap baik oleh tanaman. Selain itu, aplikasi pupuk anorganik yang berulang dalam satu periode tanam berdampak pada peningkatan biaya operasional. Salah satu metode untuk mengatasi permasalahan tersebut adalah dengan menggunakan pupuk lepas lambat (slow-release fertilizer) atau dengan menggunakan pupuk organik. Tujuan pada penelitian ini adalah dengan mengombinasikan dua metode tersebut yaitu dengan memodifikasi formulasi dari pupuk organik lokal dengan penambahan kitosan sehingga dapat diperoleh pupuk organik yang memiliki sifat lepas lambat. Laju pelepasan nitrogen dari pupuk yang dihasilkan kemudian dianalisis dan disimulasikan dengan software MATLAB. Hasil penelitian menunjukkan bahwa nitrogen yang hilang pada komposit pupuk organik-kitosan melalui water leaching menurun hingga 85% jika dibandingkan dengan komposit pupuk organik tanpa kitosan. Hasil simulasi MATLAB juga menunjukkan bahwa laju pelepasan nitrogen pada pupuk mengikuti model matematika yang diusulkan yaitu dengan mekanisme difusi, nilai koefisien difusivitas yang diperoleh adalah sebesar 1,61×10-5 cm2/s.Kata kunci: kitosan; pupuk lepas lambat; pupuk organik
Aplikasi Mordan Tanin pada Pewarnaan Kain Batik Katun Menggunakan Warna Alam Tingi (Ceriops tagal)
Authors: Lestari Dwi Wiji , Atika Vivin , Satria Yudi , Fitriani Aprilia , Susanto Tri 
Published: January 2021

The aim of the study was to evaluate the performance of tannin mordant from Psidium guajava leaves, Peltophorum pterocarpum bark, and Coffea arabica leaves in cotton batik dyeing using tingi bark (Ceriops tagal). This research was conducted by initial quantitative analysis of each extract to measure the quantity of tannin using UV-Vis spectrophotometry with tannic acid as a standard solution. The next process was a fabric pre-mordanting using each mordant extract, batik process, coloring with tingi bark extract, and post-mordanting using each alum solution and guava leaves extract. The dyed batik fabric was tested toward its color intensity and durability/fastness properties. From the quantitative analysis, guava leaves extract contains the biggest tannin content compared with jambal bark and coffee leaves extract, which is 1151.5 μg/mL. The dyed sample from combination of Guava leaves extract pre-mordanting with alum post-mordanting provided the best color intensity of 15.52. While all variables had an equal good value for washing fastness. It can be concluded that all material had potential as natural mordant for cotton batik dyeing with natural dye, but with consideration of using metal mordant for combination to get better results in terms of both color intensity and fastness properties.Keywords: batik; biomordant; natural dye; tannin mordant A B S T R A KTujuan dari penelitian ini adalah untuk mengetahui kinerja mordan tanin dari daun jambu biji (Psidium guajava), kulit kayu jambal (Peltophorum pterocarpum) dan daun kopi (Coffea arabica) dalam pewarnaan kain batik katun dengan pewarna alami tingi (Ceriops tagal). Penelitian dilakukan dengan terlebih dahulu mengukur kadar tanin total dari masing-masing ekstrak secara kuantitatif menggunakan spektrofotometri UV-Vis dengan larutan standar asam tanat. Proses selanjutnya adalah mordan awal kain menggunakan masing-masing ekstrak mordan, pembatikan, pewarnaan menggunakan ekstrak kulit kayu tingi, dan mordan akhir menggunakan masing-masing larutan tawas dan ekstrak daun jambu biji. Kain batik berwarna diuji ketuaan warna dan ketahanan luntur warnanya. Dari hasil analisis kuantitatif, didapatkan kandungan tanin terbesar dari ekstrak daun jambu biji yaitu 1.151,5 μg/mL. Hasil uji ketuaan warna paling besar didapatkan dari perlakuan mordan awal daun jambu biji dan mordan akhir tawas dengan nilai 15,52, sedangkan ketahanan luntur warna terhadap pencucian secara rata-rata memberikan nilai 4 (baik) untuk semua variabel. Kesimpulan yang dapat diambil yaitu ekstrak daun jambu biji, kulit kayu jambal, dan daun kopi memiliki potensi untuk digunakan sebagai bahan mordan pada pewarnaan batik. Penggunaan ketiga bahan mordan alami memerlukan kehadiran mordan logam untuk memperkuat intensitas warna dan ketahanan luntur warna kain.Kata kunci: batik; biomordan; mordan tannin; pewarna alam
“Porque no pertenecemos”: experiencias de violencia y racismo de chinos-mexicanos
Authors: Manzano-Munguía María Cristina , Juárez Palomino Liliana 
Published: January 2021

<span lang="ES">Este trabajo presenta avances de una investigación en curso sobre la movilidad y las relaciones transnacionales de inmigrantes chinos y sus descendientes residiendo en la ciudad de Puebla y Mazatán, Chiapas, México. Un tema recurrente en las entrevistas etnográficas de chinos–mexicanos (primera, segunda, tercera y cuarta generación) es el racismo, discriminación y violencia que prevalece en México. El documento tiene como objetivo construir estas experiencias de violencia simbólica subjetiva y sistémica (</span><span lang="ES-US">Žižek 2008)</span><span lang="ES"> contemporáneas <em>vis à vis</em> las vivencias de carácter histórico de los chinos–mexicanos. De tal manera que no existe un rompimiento o cambio entre lo histórico y lo contemporáneo, más bien se vislumbra un <em>continuum</em> en donde coexisten violencia, discriminación y racismo hacia esta población de chinos descendientes. Aquí no se intenta darle cierre a una discusión añeja, más bien este es un ejercicio intelectual en donde las autoras tratan de darle diferentes lecturas a los datos recabados en campo (2014-2017).</span>
¿Qué sabemos del robo de combustible en México? Claroscuros de un delito que no cede
Authors: Peschard Mariscal Jacqueline , Salazar Rebolledo María Grisel , Olea Gómez Octavio 
Published: January 2021

<div class="page" title="Page 1"><div class="section"><div class="layoutArea"><div class="column"><p><span>El objetivo de este artículo es presentar un diagnóstico de la calidad de la información sobre robo de combustible en México en dos vertientes: la información relativa a la evolución y distribución del fenómeno, y la información relativa a las acciones estatales para combatirlo. Para ello, acudimos a tres distintas fuentes de información: </span><span>1</span><span>) portales de transparencia proactiva de las diversas instituciones involu- cradas en este problema público, </span><span>2</span><span>) respuestas otorgadas a solicitudes de información sobre el tema realizadas entre 2006-2018, y finalmente, </span><span>3</span><span>) respuestas a solicitudes propias. Encontramos que, a pesar de la relevancia pública del problema y de que el nuevo gobierno lo incorporó en su agenda desde el primer momento, la información continúa dispersa y fragmentada. Los esfuerzos de transparencia sobre este tema son aún insuficientes para generar un debate </span>informado o una evaluación ciudadana de las acciones llevadas a cabo para combatir el robo de combustible.</p></div></div></div></div>
The Relationship Between Learning Strategy for Office Aplication With Learning Succes at LKP Widyaloka Bukittinggi
Authors: Sakiyah Elinur , Sunarti Vevi 
Published: January 2021

This research was motivated by the low learning success in the office application training at LKP Widyaloka Bukittinggi. Researchers suspect that the cause of the training participants' low learning success is to the lack of implementation of learning strategies by the instructors. The problems studied in this research are, "Is there a relationship between the learning strategy of office applications and the success of studying at LKP Widyaloka Bukittinggi?". This research is to see an overview of learning strategies, an overview of learning success, how the relationship between the two. This research is a correlational study using a quantitative approach. The population in the study amounted to 40 people who met the criteria. While the sample was determined to be 75% of 40, namely 30 people. Data collection in the research was conducted by researchers using a questionnaire technique and the tools used were questionnaires. The data analysis technique uses the percentage formula, the Product Moment formula. It can be concluded that: (1) the learning strategy at LKP Widyaloka Bukittinggi office applications is not good, (2) the success of learning office applications in LKP Widyaloka Bukittinggi is categorized as low. (3) there is a significant relationship between the office application learning strategy and the learning success at LKP Widyaloka Bukittinggi. For this reasons, the authors give several suggestions (1) It is hoped that the instructor in making an attractive media learning strategy method increases high learning success, so that active participants office application training activities LKP Widyaloka Bukittinggi can do well. (2) It is expected that LKP Widyaloka Bukittinggi will improve the quality of learning training for office applications at LKP Widyaloka Bukittinggi. (3) Researchers are expected to examine other variables that affect involvement citizens in learning.Keywords: learning strategies, learning success.
STUDI KRITIK MATAN HADIST
Authors: Devi Aulia 
Published: January 2021

AbstractThe purpose of this study is to describe the methodological study of hadith criticism. The research method is used with the approach of library study through the source of the library from various sources of literature about the methodology of the study of hadith criticism. Then analyzed and presented the data findings objectively. The result of this study is that the criticism of matan hadith is an attempt to research the hadith that is sahīh, in order to know if the hadith is maqbūl or mardūd. As for the steps are: Matan research reviewed from the quality of his isnay, researching the editor of the matan that is as good as it is, researching the content of matan and the latter is concluding the results of matan research. Then there are two methods of criticism that have been used from classical times to modern times, namely the muqāranah method and the mu'āradhah method. This method has been applied by the companions and tabi'in. This shows that criticism of hadith is necessary to be done with the aim of avoiding forgery against the hadith. AbstrakTujuan penelitian ini untuk mendeskripsikan tentang metodologis studi kritik matan hadits. Metode penelitian yang digunakan dengan pendekatan studi pustaka melalui sumber pustaka dari berbagai sumber literatur tentang metodologis studi kritik matan haditst. Kemudian dianalisis dan disajikan hasil temuan data secara objektif. Hasil dari penelitian ini yaitu kritik matan hadits adalah suatu upaya kegiatan penelitian terhadap matan-matan hadits yang sanad-nya sahīh, dalam rangka untuk mengetahui apakah hadits tersebut maqbūl ataupun mardūd. Adapun langkah-langkahnya yaitu: Penelitian matan yang ditinjau dari kualitas sanad-nya, meneliti redaksi matan yang semakna, meneliti kandungan matan dan yang terakhir adalah menyimpulkan hasil penelitian matan. Kemudian ada dua metode kritik matan yang sudah dipakai sejak zaman klasik hingga zaman modern, yaitu metode muqāranah dan metode mu’āradhah. Metode inilah yang sudah diterapkan oleh para sahabat dan para tabi’in. Hal demikian menunjukkan bahwa kritik matan hadits sangat perlu untuk dilakukan dengan tujuan agar menghindari pemalsuan terhadap matan hadits. Kata Kunci: Matan, Langkah dan Metode.
Al-Qur’an dan Wawasan Ekologi
Authors: Ahmad Muttaqein 
Published: January 2021

AbstractThis article examines the principles of the Qur'an related to the environment by continuing to pay attention to relationships with God and social beings, and to pay attention to the conservation of the surrounding environment. This article uses a thematic method by exploring exegetical books with various verses and interpretations of the environment. The results of this study indicate that there are six principles of the Qur'an related to the environment: 1) the principle of tauhid, the principle that nature and the environment are part of the mark of God's rudeness, 2) humans as caliph on earth, 3) the principle of trust (amanah), 4) the principle of justice , 5) the principle of harmony and 6) the principle of balance. This proves that the Qur’an teaches compatibility between spiritual and scientific paths. These six principles can also become the foundation for preventing environmental crises based on the Qur'an. AbstrakArtikel ini akan mengkaji tentang prinsip-prinsip al-Qur’an terkait lingkungan dengan terus memperhatikan relasional dengan Tuhannya dan makhluk sosial, serta mereka juga harus memperhatikan konservasi lingkungan sekitarnya. Artikel ini menggunakan metode tematik dengan menelusuri kitab-kitab tafsir dengan berbagai ayat dan penafsiran tentang lingkungan. Dari hasil penelitian, dapat ditemukan enam prinsip yang terkait lingkungan yaitu prinsip tauhid, prinsip bahwa alam dan lingkungan bagian dari tanda kebasaran Allah, manusia sebagai khalifah di bumi, prinsip amanah, keadilan dan prinsip keselarasan dan keseimbangan. Hal itu membuktikan bahwa al-Qur’an mengajarkan adanya kesesuaian antara jalan ruhani dan ilmiah. Keenam prinsip itu juga dapat menjadi pondasi dalam mencegah krisis lingkungan yang berlandaskan al-Qur’an.Kata Kunci: Konservasi Lingkungan, Wawasan dan Ayat Ekologi.