bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on the Mechanical Properties and Strengthening Mechanism of Interface-Modified Carbon Fiber Mesh Reinforced Cement-Based Composites with SCA&HMC
Authors: Wu Bo , Xu Xiaohai , Luo Shigang , Yan Dedao , Song Kai , Zhang Xiang , He Fang
Published: November 2019

Carbon fiber mesh reinforced cement-based composites (CMCCs) have received extensive attention in the field of engineering repair and structural reinforcement due to their outstanding properties such as two-way force, rust prevention, high specific strength, and low base surface requirements. However, the development of this material has been slowed down to some extent due to the poor interfacial bonding between the carbon fiber mesh and the cement matrix. In this paper, a novel fabrication strategy was proposed in which the carbon fiber mesh was modified with epoxy resin and silane coupling agent (SCA) to increase its surface chemical activity. Meanwhile, the hydroxymethyl cellulose (HMC) was also filled into the concrete matrix to improve the mechanical strength of the matrix as well as the load transfer behaviors between the mortar and carbon fiber (CF) mesh. The potential to employ SCA and HMC was evaluated for the making of CMCCs via the above methods. The results showed that the longitudinal shear strength of composites with SCA and SCA&HMC increased by 26.6% and 56.1% compared to those of CF with epoxy resin (EP) reinforced composites, respectively. The flexural strength of composite with SCA&HMC increases by 147.6% compared to I-(F) without CF. The novel II-HCM&CF/EP-SCA composites with excellent performance are promised to be applied in practical uses.
Circulating Metabolites Originating from Gut Microbiota Control Endothelial Cell Function
Authors: Amedei Amedeo , Morbidelli Lucia
Published: November 2019

Cardiovascular functionality strictly depends on endothelial cell trophism and proper biochemical function. Any condition (environmental, pharmacological/toxicological, physical, or neuro-humoral) that changes the vascular endothelium has great consequences for the organism’s wellness and on the outcome and evolution of severe cardiovascular pathologies. Thus, knowledge of the mechanisms, both endogenous and external, that affect endothelial dysfunction is pivotal to preventing and treating these disorders. In recent decades, significant attention has been focused on gut microbiota and how these symbiotic microorganisms can influence host health and disease development. Indeed, dysbiosis has been reported to be at the base of a range of different pathologies, including pathologies of the cardiovascular system. The study of the mechanism underlying this relationship has led to the identification of a series of metabolites (released by gut bacteria) that exert different effects on all the components of the vascular system, and in particular on endothelial cells. The imbalance of factors promoting or blunting endothelial cell viability and function and angiogenesis seems to be a potential target for the development of new therapeutic interventions. This review highlights the circulating factors identified to date, either directly produced by gut microbes or resulting from the metabolism of diet derivatives as polyphenols.
Lasianosides A–E: New Iridoid Glucosides from the Leaves of Lasianthus verticillatus (Lour.) Merr. and Their Antioxidant Activity
Authors: Al-Hamoud Gadah Abdulaziz , Saud Orfali Raha , Perveen Shagufta , Mizuno Kenta , Takeda Yoshio , Nehira Tatsuo , Masuda Kazuma , Sugimoto Sachiko , Yamano Yoshi , Otsuka Hideaki , Matsunami Katsuyoshi
Published: November 2019

The genus Lasianthus (Rubiaceae) consists of approximately 180 species, of which the greatest species diversity is found in tropical Asia. Some of the Lasianthus species have been used in folk medicine to treat tinnitus, arthritis, fever, and bleeding. Lasianthus verticillatus (Lour.) Merr. (Syn. Lasianthus trichophlebus auct. non Hemsl.) is a shrub, branchlets terete about 1.5–3 m in height. This paper studies the chemical composition of the leaves of L. verticillatus for the first time, which resulted in the isolation of five undescribed iridoid glucosides, lasianosides A–E (1–5), together with three known compounds (6–8). The undescribed structures of isolated compounds (1–5) were characterized by physical and spectroscopic data analyses, including one-dimensional (1D) and two-dimensional (2D) NMR, IR, UV, and high-resolution electrospray ionization mass spectra (HR-ESI-MS). Furthermore, the electronic circular dichroism data determined the absolute configurations of the new compounds. The free radical scavenging properties of isolated compounds was assessed by 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay, and their cytotoxicity was assessed toward human lung cancer cell line A549 by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method. Among the isolated compounds, 3 and 4 displayed potent radical scavenging activities with IC50 values of 30.2 ± 1.8 and 32.0 ± 1.2 µM, which were comparable to that of Trolox (29.2 ± 0.39 µM), respectively, while 5 possessed moderate activity with an IC50 value of 46.4 ± 2.3 µM. None of the isolated compounds exerted cytotoxicity against human cell line A549. As a result, lasianosides C, D, and E have the potential to be non-toxic safe antioxidant agents.
Flavonoid Intake and Plasma Sex Steroid Hormones, Prolactin, and Sex Hormone-Binding Globulin in Premenopausal Women
Authors: Wu You , Hankinson Susan E. , Smith-Warner Stephanie A. , Wang Molin , Eliassen A. Heather
Published: November 2019

Background: Flavonoids potentially exert anti-cancer effects, as suggested by their chemical structures and supported by animal studies. In observational studies, however, the association between flavonoids and breast cancer, and potential underlying mechanisms, remain unclear. Objective: To examine the relationship between flavonoid intake and sex hormone levels using timed blood samples in follicular and luteal phases in the Nurses’ Health Study II among premenopausal women. Methods: Plasma concentrations of estrogens, androgens, progesterone, dehydroepiandrosterone (DHEA), DHEA sulfate (DHEAS), prolactin, and sex hormone-binding globulin (SHBG) were measured in samples collected between 1996 and 1999. Average flavonoid were calculated from semiquantitative food frequency questionnaires collected in 1995 and 1999. We used generalized linear models to calculate geometric mean hormone concentrations across categories of the intake of flavonoids and the subclasses. Results: Total flavonoid intake generally was not associated with the hormones of interest. The only significant association was with DHEAS (p-trend = 0.02), which was 11.1% (95% confidence interval (CI): −18.6%, −3.0%) lower comparing the highest vs. lowest quartile of flavonoid intake. In subclass analyses, the highest (vs. lowest) quartile of flavan-3-ol intake was associated with significantly lower DHEAS concentrations (−11.3% with 95% CI: −18.3%, −3.7%, p-trend = 0.01), and anthocyanin intake was associated with a significant inverse trend for DHEA (−18.0% with 95% CI: −27.9%, −6.7%, p-trend = 0.003). Conclusion: Flavonoid intake in this population had limited impact on most plasma sex hormones in premenopausal women. Anthocyanins and flavan-3-ols were associated with lower levels of DHEA and DHEAS.
Early Hepatic Oxidative Stress and Mitochondrial Changes Following Western Diet in Middle Aged Rats
Authors: Mazzoli Arianna , Crescenzo Raffaella , Cigliano Luisa , Spagnuolo Maria Stefania , Cancelliere Rosa , Gatto Cristina , Iossa Susanna
Published: November 2019

To assess the effect of 4 weeks of high fat-high fructose feeding on whole body composition, energy balance, specific markers of oxidative stress and inflammation, and insulin sensitivity in the liver of middle-aged rats, rats (1 year) were fed a diet rich in saturated fatty acids and fructose (HFF rats), mimicking the “Western diet”, and compared with rats of the same age that were fed a low fat diet (LF rats). HFF rats exhibited a significant increase in the gain of body weight, energy, and lipids compared to LF rats. HFF rats also showed hepatic insulin resistance, together with an increase in plasma triglycerides, cholesterol, and tumor necrosis factor alpha. Hepatic lipids, triglycerides and cholesterol were higher in HFF rats, while a significant decrease in Stearoyl-CoA desaturase activity was found in this tissue. A marked increase in the protein amount of complex I, concomitant to a decrease in its contribution to mitochondrial respiration, was found in HFF rats. Lipid peroxidation and Nitro-Tyrosine content, taken as markers of oxidative stress, as well as NADPH oxidase activity, were significantly higher in HFF rats, while the antioxidant enzyme catalase decreased in these rats. Myeloperoxidase activity and lipocalin content increased, while peroxisome proliferator activated receptor gamma decreased in HFF rats. The present results provide evidence that middle-aged rats show susceptibility to a short-term “Western diet”, exhibiting altered redox homeostasis, insulin resistance, and early mitochondrial alterations in the liver. Therefore, this type of dietary habits should be drastically limited to pursue a “healthy aging”.
Localization and Tracking of Discrete Mobile Scatterers in Vehicular Environments Using Delay Estimates
Authors: Schmidhammer Martin , Gentner Christian , Siebler Benjamin , Sand Stephan
Published: November 2019

This paper describes an approach to detect, localize, and track moving, non-cooperative objects by exploiting multipath propagation. In a network of spatially distributed transmitting and receiving nodes, moving objects appear as discrete mobile scatterers. Therefore, the localization of mobile scatterers is formulated as a nonlinear optimization problem. An iterative nonlinear least squares algorithm following Levenberg and Marquardt is used for solving the optimization problem initially, and an extended Kalman filter is used for estimating the scatterer location recursively over time. The corresponding performance bounds are derived for both the snapshot based position estimation and the nonlinear sequential Bayesian estimation with the classic and the posterior Cramér–Rao lower bound. Thereby, a comparison of simulation results to the posterior Cramér–Rao lower bound confirms the applicability of the extended Kalman filter. The proposed approach is applied to estimate the position of a walking pedestrian sequentially based on wideband measurement data in an outdoor scenario. The evaluation shows that the pedestrian can be localized throughout the scenario with an accuracy of 0 . 8 m at 90% confidence.
Morpho-Agronomic Characterisation of Runner Bean (Phaseolus coccineus L.) from South-Eastern Europe
Authors: Sinkovič Lovro , Pipan Barbara , Vasić Mirjana , Antić Marina , Todorović Vida , Ivanovska Sonja , Brezeanu Creola , Šuštar-Vozlič Jelka , Meglič Vladimir
Published: November 2019

In South-Eastern Europe, the majority of runner-bean (Phaseolus coccineus L.) production is based on local populations grown mainly in home gardens. The local runner-bean plants are well adapted to their specific growing conditions and microclimate agro-environments, and show great morpho-agronomic diversity. Here, 142 runner-bean accessions from the five South-Eastern European countries of Slovenia, Bosnia and Herzegovina, Serbia, North Macedonia and Romania were sown and cultivated in their respective countries and characterised using 28 quantitative and qualitative morpho-agronomic descriptors for Phaseolus spp. based on inflorescences, leaves, plants, pods and seeds. For each of these morpho-agronomic descriptors, the accessions can be classified into two or three specific groups. The highest correlations were observed within the fluorescence, seed and pod traits. The highest variability, at 76.39%, was between the different countries, representing different geographic origins, while the variability within the countries was 23.61%. Cluster analysis based on these collected morpho-agronomic data also classified the accessions into three groups according to genetic origins. The data obtained serve as useful genetic information for plant breeders for the breeding of new bean varieties for further studies of the morpho-agronomic traits of the runner bean.
Quantitative Influence of Land-Use Changes and Urban Expansion Intensity on Landscape Pattern in Qingdao, China: Implications for Urban Sustainability
Authors: Yang Jinming , Li Shimei , Lu Huicui
Published: November 2019

The spatial structure and configuration of land-use patches, i.e., landscape patterns could affect the flow of energy and materials in inner-urban ecosystems, and hence the sustainable development of urban areas. Studying landscape pattern changes under the process of urbanization would have implicational significance to urban planning and urban sustainability. In this paper, land-use change and urban expansion intensity (UEI) were treated as the inducement factors for changes in landscape patterns, and stepwise regression and geographically weighted regression (GWR) were adapted to quantify their integrated and distributed magnitude effects on landscape patterns, respectively. The findings suggested that land-uses have different contributions to changes in landscape patterns at different urban development zones (downtown, suburban plain area and mountainous suburban areas). Furthermore, the GWR analysis results indicated that the effect of UEI on landscape patterns has spatial and temporal heterogeneity. From 1987 to 2000, the UEI had great explanatory capacity on changes in landscape patterns and helped the landscape assemble faster in the downtown and adjacent areas. However, with the shifting of the center of urban construction from downtown to the suburbs, the high explanatory ability was oriented towards suburban areas during 2000–2016 and the magnitude of influence spatially changed. Therefore, a compact city and protection policy should be adapted to different regions in the study area to achieve strong urban sustainability.
Keller-Box Analysis of Buongiorno Model with Brownian and Thermophoretic Diffusion for Casson Nanofluid over an Inclined Surface
Authors: Rafique Khuram , Imran Anwar Muhammad , Misiran Masnita , Khan Ilyas , Alharbi Sayer O. , Thounthong Phatiphat , Nisar Kottakkaran Sooppy
Published: November 2019

The key objective of the study under concern is to probe the impacts of Brownian motion and thermophoresis diffusion on Casson nanofluid boundary layer flow over a nonlinear inclined stretching sheet, with the effect of convective boundaries and thermal radiations. Nonlinear ordinary differential equations are obtained from governing nonlinear partial differential equations by using compatible similarity transformations. The quantities associated with engineering aspects, such as skin friction, Sherwood number, and heat exchange along with various impacts of material factors on the momentum, temperature, and concentration, are elucidated and clarified with diagrams. The numerical solution of the present study is obtained via the Keller-box technique and in limiting sense are reduced to the published results for accuracy purpose.
A Fosmid-Based System for the Generation of Recombinant Cercopithecine Alphaherpesvirus 2 Encoding Reporter Genes
Authors: Chukhno Ekaterina , Gärtner Sabine , Rahman Siregar Abdul , Mehr Alexander , Wende Marie , Petkov Stoyan , Götting Jasper , Dhingra Akshay , Schulz Thomas , Pöhlmann Stefan , Winkler Michael
Published: November 2019

The transmission of Macacine alphaherpesvirus 1 (McHV-1) from macaques, the natural host, to humans causes encephalitis. In contrast, human infection with Cercopithecine alphaherpesvirus 2 (CeHV-2), a closely related alphaherpesvirus from African vervet monkeys and baboons, has not been reported and it is believed that CeHV-2 is apathogenic in humans. The reasons for the differential neurovirulence of McHV-1 and CeHV-2 have not been explored on a molecular level, in part due to the absence of systems for the production of recombinant viruses. Here, we report the generation of a fosmid-based system for rescue of recombinant CeHV-2. Moreover, we show that, in this system, recombineering can be used to equip CeHV-2 with reporter genes. The recombinant CeHV-2 viruses replicated with the same efficiency as uncloned, wt virus and allowed the identification of cell lines that are highly susceptible to CeHV-2 infection. Collectively, we report a system that allows rescue and genetic modification of CeHV-2 and likely other alphaherpesviruses. This system should aid future analysis of CeHV-2 biology.
Silent Circulation of the Saint Louis Encephalitis Virus among Humans and Equids, Southeast Brazil
Authors: Barbosa Costa Galileu , Marinho Paula Eillany Silva , Vilela Ana Paula Pessoa , Saraiva-Silva Ana Teresa , Crispim Ana Paula Correia , Borges Iara Apolinário , Dutra Ana Gabriella Stoffella , Lobato Zélia Inês Portela , dos Reis Jenner Karlison Pimenta , de Oliveira Danilo Bretas , Drumond Betania Paiva , Kroon Erna Geessien , Trindade Giliane de Souza
Published: November 2019

Saint Louis encephalitis virus (SLEV) is a mosquito-borne flavivirus that occurs throughout the Americas, and is considered a public health threat. In Brazil, SLEV has been detected from human cases associated with dengue-like disease, but no neurological symptoms were reported. Furthermore, the epidemiology of SLEV in human populations is still poorly explored in the country. We reported serological and molecular detection of SLEV in a healthy population of equids and humans from rural areas in Southeast Brazil. A plaque reduction neutralization test was applied, and neutralizing antibodies were detected in 11 individuals (4.6%) and 60 horses (21.5%). A qPCR targeting the 5′UTR region and reverse transcription-PCR (RT-PCR) targeting the non-structural protein (NS5) gene were performed and three individuals tested positive in both assays. Subsequent phylogenetic analysis confirmed SLEV circulation and its findings suggest the occurrence of an asymptomatic or subclinical presence in human and animal cases, correlating with the risks for outbreaks and consequently burden of SLEV infections to public health. Preventive strategies should include improved surveillance in regions with a high probability of SLEV occurrence, improvement in diagnostic methods, and evaluation of exposure/risk factors that can favor SLEV emergence.
Analisis Dosen Favorit STIE-GK Muara Bulian Menggunakan Algoritma Apriori
Authors: Anas Azwar , Darma Budi
Published: November 2019

Dalam penelitian ini, penulis menggunakan algoritma apriori untuk menganalisis indikator dosen favorit pilihan mahasiswa STIE-GK Muara Bulian. Algoritma apriori dipilih karena kemampuannya dalam menganalisis data yang muncul secara bersamaan dan berulang dan data yang telah menumpuk lama, sehingga perlu kiranya digunakan penambangan data, untuk mendapatkan pengetahuan. Data yang penulis gunakan adalah pilihan indikator dosen favorit STIE-GK Muara Bulian secara random sebanyak 100. Metode penelitian yang penulis gunakan adalah dengan menghitung data secara manual kemudian dilakukan uji coba terhadap software data mining Weka. Adapun hasil penelitian ini menunjukkan, secara parsial indikator Pendiam memiliki nilai tertinggi yakni 46% sedangkan indikator terrendah adalah Rapi yakni 63%. Sedangkan rule yang terbentuk berdasarkan minimum support dan minimum confidence adalah 3 rule yaitu â€œJika mahasiswa tidak  memilih indikator Pintar, Menarik, Disiplin, Humoris, maka tidak memilih Rapiâ€ dengan nilai confidence 92%, â€œJika mahasiswa memilih indikator Rapi, Menarik dan tidak memilih indikator Disiplin, Humors, maka tidak memilih Pintarâ€ dengan nilai confidence 91% dan â€œJika mahasiswa tidak memilih indikator Pintar, memilih indikator Rapi, tidak memilih indikator Disiplin, Humors, maka memilih indikator Menarikâ€ dengan confidence 91%.
Implementasi Sistem Informasi Manajemen Arsip Di Fakultas Sains dan Teknologi Universitas Jambi
Authors: Aryani Reni , Suratno Tri , Mauladi Mauladi , Utomo Pradita Eko Prasetyo
Published: November 2019

Fakultas Sains dan Teknologi Universitas Jambi sebagai institusi yang bergerak dibidang pendidikan, saat ini telah mengunakan teknologi komputer dalam pengelolaan dokumennya. Akan tetapi teknologi tersebut belum digunakan secara optimal. Hal ini terlihat dari cara penyimpanan arsip dokumen fakultas yang masih dilakukan secara manual oleh staff tenaga kependidikan. Di Fakultas Sains dan Teknologi, dokumen disimpan dalam lemari arsip dan atau di dalam folder komputer yang dipisahkan berdasarkan jenis dokumen. Akibatnya terdapat kendala dalam pengaksesan dokumen, dimana staff tenaga kependidikan harus terlebih dahulu membongkar folder arsip untuk mencari dokumen yang dibutuhkan. Selain itu dokumen arsip berupa kertas menumpuk di ruangan, yang lama kelamaan akan membutuhkan ruang yang banyak. Untuk mengatasi masalah tersebut maka solusi yang dilakukan adalah dengan pengembangan sistem informasi manajemen arsip berbasis web. Sistem informasi manajemen arsip ini dikembangkan dengan menggunakan framework laravel dengan metode pengembangan software development life cycle (SDLC). Hasil yang diperoleh dari kegiatan pengembangan sistem ini adalah sebuah sistem informasi manajemen arsip Fakultas Sains dan Teknologi yang dapat diakses pada https://arsip.fst.unja.ac.id untuk digunakan secara langsung dalam penyimpanan data atau dokumen, serta dapat meningkatkan efektifitas dalam pengolahan dokumen
DETEKSI PENGENALAN BANGUNAN SEJARAH KOTA JAMBI MENGGUNAKAN AUGMENTED REALITY
Authors: AGUS  , PAREZA ALAM  , IBNU SANI
Published: November 2019

Teknologi Augmented Reality merupakan teknologi yang menggunakan object virtual baik dalam bentuk tiga dimensi ataupun dua dimensi yang ditampilkan melalui hasil tracking kamera kepada suatu objek dan ditampilkan secara real-time. Dalam teknologi AR dipenelitian ini akan dikembangkan sebuah aplikasi berdasarkan monumen-monumen bersejarah khususnya di kota jambi secara realtime dimana trigger yang dijadikan untuk tracking di integrasikan dengan map google dari pengambilan titik temu latidute serta longtitude, ini berfungsi sebagai menentukan apakah suatu gambar dapat dikenali atau tidak berdasarkan pengenalan pola dengan mendeteksi dan melacak titik-titik sudut pola pada gambar dengan menggunakan titik koordinat yang didapatkan. Aplikasi ini di peruntukkan masyarakat kota jambi agar lebih mengenal kembali monumen-monumen bersejarah dikota jambi yang mulai terlupakan
RANCANG BANGUN APLIKASI MODEL STANDARISASI KEBUGARAN JASMANI BAGI KARYAWAN DI PROVINSI JAMBI
Authors: ZULFI
Published: November 2019

Dalam perhitungan kebugaran jasmani karyawan di Provinsi Jambi masih belum menggunakan system yang terkomputerisasi. Hal ini menimbulkan beberapa masalah yaitu, perhitungan yang cukup sulit dan rumit, karena banyak variable-variabel yang mempengaruhinya, keamanan data kurang terjamin, dan menyulitkan dalam pembuatan laporan. Tujuan dari penelitian ini adalah untuk membangun sebuah aplikasi model standarisasi kebugaran jasmani bagi karyawan di Provinsi Jambi. Selain itu penulis juga ingin merancang aplikasi yang dapat mengolah data standarisasi kebugaran jasmani yang datanya terpusat pada satu database sehingga dapat membantu para pakar dalam mengolah datanya. Metode yang digunakan dalam penelitian ini adalah metode Waterfall dan pendekatan analisis sistem menggunakan metode berorientasi objek dengan tools UML meliputi Use Case Diagram, Class Diagram, dan Activity Diagram. Penelitian ini menghasilkan Aplikasi Standarisasi Kebugaran Jasmani Bagi Karyawan di Provinsi Jambi yang diharapkan dapat meningkatkan kinerja karyawan tersebut.
PENGUKURAN KUALITAS DIGITAL LIBRARY STIKOM DINAMIKA BANGSA JAMBI
Authors: WILLY  , XAVERIUS
Published: November 2019

Penggunaan layanan sistem informasi perpustakaan berbasis website berupa perpustakaan digital sudah banyak dilakukan pada perpustakaan perguruan tinggi. Pemanfaatan perpustakaan digital dilakukan dalam rangka memberikan kemudahan bagi para pengguna perpustakaan, khususnya civitas akademika STIKOM Dinamika Bangsa Jambi yang dapat diakses pada alamat (http://digilib.stikom-db.ac.id) sejak tahun 2010. Sesuai tujuan pembuatannya perpustakaan digital tersebut digunakan sebagai wadah yang menampung berbagai penelitian, buku digital, skripsi, maupun thesis dari civitas akademika STIKOM Dinamika Bangsa Jambi sebagai salah satu media pembelajaran maupun referensi oleh mahasiswa maupun dosen dalam melakukan penelitian selanjutnya. Namun hingga saat ini belum ada pengukuran kualitas digital library pada situs (http://digilib.stikom-db.ac.id), sehingga penelitian ini bertujuan untuk mengukur penilaian pengguna terhadap kualitas layanan digital library STIKOM Dinamika Bangsa Jambi menggunakan WebQual 4.0. Adapun metode penelitan yang digunakan kuantitatif berupa kuesioner dengan responden mahasiswa/i Strata 1 (S1) STIKOM Dinamika Bangsa Jambi program studi Teknik Informatika (TI), Sistem Informasi (SI), dan Sistem Komputer (SK) semester genap 2018/2019 yang mengontrak mata kuliah kerja praktek dan tugas akhir dengan sampel 10% dari 563 responden yaitu 56 orang. Setelah itu dilanjutkan uji validitas dan reliabilitas, uji asumsi, serta analisis liniear berganda dengan bantuan aplikasi IBM SPSS Statistics. Sehingga diperoleh kesimpulan yaitu : kualitas penggunaan (usability), kualitas informasi (information quality), dan kualitas interaksi (interaction quality) berpengaruh positif dan signifikan terhadap kepuasan pengguna (customer satisfaction).
Model Results and Software Comparisons in Myrtle Beach, SC Using Virtual Beach and R Regression Toolboxes
Authors: Neet Matthew J. , Kelsey R. Heath , Porter Dwayne E. , Ramage Dan W. , Jones Adrian B.
Published: November 2019

Utilizing R software and a variety of data sources, daily forecasts of bacteria levels were developed and automated for beach waters in Myrtle Beach, SC. Modeled results are then shown for beach locations via a website and mobile device app. While R provides a robust set of tools for use in forecast modeling, the software has an extensive learning curve and requires skilled statistical interpretation of results. The Environmental Protection Agency (EPA) created the “Virtual Beach” software package to address these concerns. To evaluate the utility of the more user-friendly Virtual Beach modeling toolbox, predictive models were developed and model results were analyzed using the two software suites. Recommendations were made based on ease of use and several performance measures. Model results indicate the two software toolboxes yield comparable outputs. However, Virtual Beach tends to create more robust model forecasts, while R provides more options for model setup and outputs.
A Policy Lens of South Carolina Coastal Stormwater Management
Authors: Dickes Lori A. , Allen Jeffery , Jalowiecka Monika , Buckley Katie
Published: November 2019

Similar to many environmental issues today, stormwater management lies within a network of regulatory and policy oversight. As South Carolina coastal communities continue to experience economic and population growth, understanding the broader policy context of stormwater pond management is important. This study was aimed at compiling the state-of-the-knowledge of stormwater pond management policy for the eight coastal counties of South Carolina. In order to enhance researchers and policymakers understanding of the stormwater policy and regulatory environment, this research utilizes a mixed methods approach. A mixed methods approach allows researchers to explore different components of a particular research question by deploying more than one methodological tool.

This research employed three primary qualitative techniques: a policy instrument scan, a regional online survey and a local policy and economic focus group. Results indicate that while potentially strong policy exists at all levels (federal, state and local), there are identified gaps and stakeholder concerns around policy implementation and proper stormwater pond management at the local level. Additionally, with many stormwater ponds managed by Homeowners’ Associations (HOAs) there appears to be wide variation in their management and maintenance. Some of the recommendations identified in these results include: encouraging more Low Impact Development (LID) practices both for new development and re-development, improved communication on and best practices in pond maintenance, research and development of alternative pond management methods, more effective communication from South Carolina Department of Health and Environmental Control (DHEC) related to design criteria, effective maintenance and training opportunities for engineers preparing stormwater plans, and improved education for developers and HOAs. This document provides a framework to help lay the foundation for future stormwater pond policy studies that can assist policy makers, managers, stakeholders and other decision makers to more fully understand issues impacting water resource management in South Carolina.
Dual-Color Lasing Lines from EMPs in Diluted Magnetic Semiconductor CdS:NiI Structure
Authors: Kamran Muhammad Arshad , Zou Bingsuo , Zhang Kang , Yang Xiongtao , Ge Fujian , Shi Lijie , Alharbi Thamer
Published: November 2019

Have one ever seen a semiconductor that can issue two-color lasing lines? The diluted magnetic semiconductor (DMS) can do this. Here, we have observed dual lasing lines of 530 nm and 789 nm from a DMS structure of CdS:NiI, in which the excitonic magnetic polaron (EMP) and localized excitonic magnetic polaron (LEMP) are excitations out of ferromagnetic (NiS)

x

nanocluster and NiI
2
nanoclusters within CdS lattice; both of them could lead to the collective EMP state at high excitation and therein produce coherent emission lines simultaneously. This occurrence is due to the superposition of EMP near CdS bandedge and the combination of the charge-transfer band of (NiI)

n

cluster with the LEMP within CdS lattice by overcoming the strong electron correlation of NiI cluster in a DMS structure, evidenced also by ab initio calculation. This finding opens a way to understand the collective behaviour of spin-coupled excitons in DMS and to find novel applications in the spin-related quantum technology.
Synergistic Effects of Salt Concentration and Working Temperature towards Dendrite-Free Lithium Deposition
Authors: Li Panlong , Li Chao , Yang Yang , Zhang Chanyuan , Wang Renhe , Liu Yao , Wang Yonggang , Luo Jiayan , Dong Xiaoli , Xia Yongyao
Published: November 2019

The lithium- (Li-) metal anode is crucial for developing high-energy-density batteries, while its dendritic growth and the low charge/discharge Coulombic efficiency in organic electrolytes hinder its practical application. Herein, we employed an in situ optical microscope to investigate the effect of the electrolyte concentration and the working temperature on the Li-plating/-stripping process. It is found that a higher concentration electrolyte can suppress its side reaction to improve the charge/discharge Coulombic efficiency, and a higher temperature can help lithium plate/strip uniformly with less lithium dendritic growth. An average Coulombic efficiency was obtained as high as 99.2% for over 150 cycles with a fixed plating capacity of 2 mAh cm
-2
on copper foil in a 3 mol/kg ether-based electrolyte under 60°C, which provides an efficient and facile strategy for developing high-performance Li-metal batteries.
DAMPAK SOSIAL, EKONOMI DAN POLITIS DALAM PEMBANGUNAN BANDARA UDARA KERTAJATI DI KABUPATEN MAJALENGKA
Authors: Zulfikar Waluyo
Published: November 2019

Masalah yang diteliti adalah analisis dampak sosial ekonomi dan politis dalam proses pembangunan bandara udara kertajati di Kabupaten Majalengka, sebagaimana diketahui bersama bahwa pembangunan bandara ini berada di wilayah Desa Kertajati, Desa Bantarjati, dan Desa Kertasari serta Desa Sukamulya di kawasan Kecamatan Kertajati Kabupaten Majalengka yang dirasa belum optimal dalam proses pembangunannya. Penelitian ini bertujuan untuk mengembangkan konsep dan pemikiran akademis bagi Provinisi Jawa Barat dalam merancang kebijakan yang tepat untuk keberlangsungan proses pembangunan bandara di kertajati sehingga dalam proses pembangunannya akan memberikan nilai manfaat lebih bagi masyarakat yang ada di sekitar pembangunan lokasi bandara. Penelitian ini akan menggunakan metode deskriptif dengan pendekatan kualitatif untuk mendalami makna dari satu fenomena yang terjadi. Teknik pengumpulan data dilakukan dengan wawancara mendalam, observasi partisipatif, dokumentasi, serta triangulasi, sehingga dapat diperoleh data dan informasi yang mendukung tujuan studi.
HUBUNGAN ANTARA KB SUNTIK 3 BULAN PADA AKSEPTOR KB SUNTIK DAN METRORAGIA TERHADAP PENINGKATAN BERAT BADAN
Authors: Liza Liza
Published: November 2019

Kecemasan postpartum masih menjadi masalah masyarakat di Indonesia dan serig tidak terdeteksi karena minimnya pelaporan. Kecemasan ini mengakibatkan gangguan pada psikologis ibu, mengganggu hubungan dengan suami dan anak, gangguan pada pertumbuhan dan perkembangan bayi. Penelitian ini bertujuan untuk mengetahui hubungan antara dukungan keluarga dengan kejadian kecemasan postpartum. Penelitian deskriptif korelasi ini dilakukan dengan cross sectional. Populasi penelitian ini adalah semua ibu pasca bersalin di Klinik Bersalin Nuri pada bulan September sampai dengan bulan Oktober 2019 dengan jumlah 120 orang, teknik sampling yang digunakan adalah Accidental Sampling dimana saat penelitian dijumpai responden sebanyak 27 responden. Data diambil menggunakan data primer dan data sekunder. Alat pengumpulan data berupa kuesioner. Analisa data univariat dan bivariat dengan menggunakan kendall tau. Berdasarkan uji Kendal Tau didapatkan nilai t = -0,740 dengan p-value sebesar 0,002. Terlihat bahwa nilai p = 0,002 < a (0,05), Ada hubungan yang signifikan antara dukungan keluarga dengan kecemasan postpartum. hubungan yang signifikan antara dukungan keluarga dengan kecemasan postpartum. Semakin tinggi dukungan keluarga maka tingkat kecemasan postpartum rendah.
UJI DAYA HAMBAT EKSTRAK KELOPAK BUNGA ROSELLA (HIBISCUS SABDARIFFA L.) SEBAGAI ANTIBAKTERI STAPHYLOCOCCUS AUREUS
Authors: Febriyanto Tedy , Meinisasti Resva , Farizal Jon , Mawardi Diajeng Dea Resya
Published: November 2019

Latar Belakang : Penyakit infeksi merupakan salah satu masalah kesehatan terbesar di dunia. Menurut WHO 2015 berdasarkan data YLL (Years Of Life Lost) di negara berkembang penyakit infeksi masih merupakan penyebab kematian utama. Staphylococcus adalah penyebab utama infeksi bernanah pada manusia yang terdapat di rongga hidung dan kulit sebagian besar populasi manusia. Salah satu Penyakit kulit yang disebabkan oleh bakteri Staphylococcus aureus adalah bisul. Staphylococcus aureus telah mengalami resistensi terhadap antibiotik. Maka dari itu alternatif yang dapat dilakukan adalah dengan cara menggunakan bahan alam atau tradisional yaitu dengan memanfaatkan kelopak bunga rosella (Hibiscus Sabdariffa L.). Tujuan penelitian ini adalah mengetahui daya hambat ekstrak bunga rosella (Hibiscus Sabdariffa L.) terhadap pertumbuhan bakteri Staphylococcus aureus. Metode : Penelitian ini merupakan penelitian Deskriptif dengan empat perlakuan dengan variasi kosentrasi 70%, 75%, 80% dan 85% dengan menggunakan analisa data uji statistik Univariat.Hasil : Diameter zona hambat yang terbentukpada konsentrasi 70% sebesar 14.4 mm,konsentrasi 75% sebesar 15.7 mm, konsentrasi 80% sebesar 16.4 mm, konsentrasi 85% sebesar 19.6 mm.Kesimpulan :Ekstrak etanol kelopak bunga rosella (Hibiscus Sabdariffa L.) memiliki zat antimikroba yang dapat menghambat pertumbuhan bakteri staphylococcus aureus paling baik pada kosentrasi 85% dengan rerata zona hambat 19,6 mm dan di kategorikan kuat.
POPULASI AEDES SP YANG DOMINAN SEBAGAI VEKTOR POTENSIAL DENGUE DI KOTA JAMBI
Authors: Suhermanto Suhermanto , Ariyani Susy
Published: November 2019

Ringkasan

Kota Jambi masih menjadi kontributor penderita DBD tertinggi dari 11 Kabupaten/Kota yang ada di Propinsi Jambi. Sasaran pengendalian terhadap nyamuk Aedes sp belum selektif dilakukan karena belum ada informasi terkait keragaman populasi serta karakteristik perindukan Aedes sp pada daerah endemis DBD di Kota Jambi.

Permasalahan yang diteliti tentang vektor potensial dengue yang lebih dominan, dan jenis perindukannya. Sehingga tujuan dari penelitian ini adalah diketahuinya populasi dominan antara Ae. aegypti dan Ae. albopictus yang tertangkap dengan Backpack Aspirator serta karakteristik perindukannya.

Metode penelitian adalah Deskriptif dengan pendekatan studi eksplorasi nyamuk Aedes sp di 5 kelurahan tertinggi DBD, masing-masing kelurahan sebanyak 100 rumah yang dipilih secara random sampling.

Hasil penelitian memberikan informasi bahwa Aedes albopictus lebih dominan ditemukan, dengan rasio nyamuk Aedes albopictus tertinggi pada Kelurahan Lingkar Selatan yaitu (11 : 1), kemudian Kelurahan Kenali Besar (9 : 1). Begitu juga dengan rasio larva Aedes albopictus, terdapat 3 kelurahan yang berada di pinggiran kota (Kenali Bessar, Talang Bakung dan Lingkar Selatan) memiliki rasio larva Aedes albopictus 6 kali lebih besar di bandingkan kelurahan yang tidak berada dipinggiran kota. Penelitian ini juga menemukan Bak mandi (47%) dan Drum (28,5%) sebagai tempat perindukan Aedes sp terbanyak.

Perlu dilakukan penelitan lanjutan mengenai persentase Aedes sp yang terinfeksi virus dengue, sehingga dapat membuktikan bahwa Aedes albopictus sebagai vektor utama DBD di Kota Jambi
HUBUNGAN PENGETAHUAN DAN SIKAP MASYARAKAT DENGAN PEWARNAAN GIGI (STAIN) DI DESA PEUNITI KOTA BANDA ACEH
Authors: Reca Reca , Mardiah Ainun
Published: November 2019

Pewarnaan gigi (stain) merupakan warna yang menempel diatas permukaan gigi biasanya terjadi karena perlekatan warna makanan, minuman atau kandungan nikotin. Perilaku masyarakat merupakan salah satu faktor yang dapat mempengaruhi stastus kebersihan gigi dan mulut, salah satunya pewarnaan gigi (stain). Tujuan penelitian ini adalah mengetahui hubungan pengetahuan dan sikap masyarakat dengan pewarnaan gigi (stain) di Desa Peuniti Kota Banda Aceh. Penelitian ini bersifat analitik dengan pendekatan cross sectional. Populasi pada penelitian ini yaitu seluruh masyarakat di Desa Peuniti dan sampel berjumlah 30 orang yang diambil berdasarkan teknik purposive sampling. Data diperoleh dengan wawancara menggunakan kuesioner. Hasil penelitian menunjukkan ada hubungan antara pengetahuan dan sikap masyarakat dengan pewarnaan gigi (stain) di Desa Peuniti Kota Banda Aceh (p<0,05).  Dapat disimpukan bahwa ada hubungan antara pengetahuan dan sikap masyarakat dengan pewarnaan gigi (stain) dan disarankan kepada seluruh masyarakat untuk dapat mengurangi mengonsumsi rokok, kopi dan teh dan mengurangi kebiasaan buruk yang dapat berpengaruh terhadap perubahan warna gigi (stain).
PENGARUH PENGGUNAAN SIKAT GIGI KHUSUS ORTODONTIK TERHADAP STATUS KEBERSIHAN GIGI DAN MULUT PEMAKAI ORTHODONTIK CEKAT PADA SISWA SMK NEGERI 3 BANDA ACEH
Authors: Wirza Wirza , Wilis Ratna
Published: November 2019

Kebersihan mulut yang baik merupakan tantangan bagi pasien orthodontic karena makanan mudah menjadi terperangkap di sekitar bracket dan dibawah archwires sehingga merupakan penghalang pada waktu menyikat. Pembersihan gigi secara mekanis merupakan upaya paling efektif untuk mencegah terjadinya timbunan plak, salah satunya adalah dengan menyikat gigi. Meskipun sikat gigi merupakan alat mekanis yang paling efektif untuk membersihkan plak, akan tetapi efektivitas menyikat gigi juga bergantung pada bentuk sikat gigi, frekuensi lamanya menyikat gigi dan metode yang baik untuk digunakan setiap orang. Penelitian ini bertujuan mengetahui pengaruh penggunaan sikat gigi khusus ortodontik terhadap status kebersihan gigi dan mulut pada pemakai orthodontik cekat pada siswa SMK Negeri 3 Banda Aceh. Jenis penelitian ini adalah quasi experimental. Subyek dalam  penelitian ini yaitu seluruh mahasiswa yang memakai ortodontik cekat 30 orang, kemudian dibagi menjadi dua kelompok, kelompok intervensi terdiri dari 15 orang diberikan  intervensi (menyikat gigi menggunakan sikat gigi khusus ortodontik) dan kelompok kontrol terdiri dari 15 orang yang tidak diberikan intervensi (menyikat gigi menggunakan sikat gigi konvensional). Teknik pengambilan sampel dalam penelitian ini adalah purposive sampling Analisis hasil data (kuantitatif) dalam penelitian ini menggunakan; menggunakan statistik non parametrik uji t (wilcoxon) dan mann whitney. Hasil penelitian menunjukkan Ada perbedaan rerata nilai status kebersihan gigi dan mulut (indeks PHP-M) pada kelompok perlakuan dan kelompok kontrol yang bermakna secara statistik (p<0,05) sebelum dan sesudah menyikat gigi menggunakan sikat gigi khusus ortodontik  dan sikat gigi konvensional pada pemakai orthodontik cekat pada siswa SMK Negeri 3   Banda Aceh. Ada perbedaan yang signifikan Indeks PHP-M  sesudah intervensi (post-test) antara kelompok perlakuan (menyikat gigi menggunakan sikat gigi khusus ortodontik) dengan kelompok kontrol (menyikat gigi menggunakan sikat gigi konvensional), hal ini ditunjukkan secara statistik p<0,05). Direkomendasikan agar selalu menjaga kebersihan mulut supaya jaringan gigi dan gusi tetap sehat dengan cara menyikat gigi, paling  sedikit  dua  kali  sehari  yaitu  setelah  makan  pagi,  dan  malam sebelum
HUBUNGAN TINDAKAN MENGGOSOK GIGI DENGAN STATUS KEBERSIHAN GIGI DAN MULUT PADA MURID KELAS V DAN VI SEKOLAH DASAR DI PEUDADA KABUPATEN BIREUEN
Authors: Liana Intan , Arbi Anwar
Published: November 2019

Tindakan merupakan  salah satu faktor yang dapat mempengaruhi status kesehatan gigi. Berdasarkan survey awal, 10  anak yang diperiksa  4 diantaranya  memiliki kebersihan gigi dan mulut berkriteria sedang, 6 anak memiliki kebersihan gigi dan mulut berkriteria buruk. Tujuan dari penelitian ini adalah untuk mengetahui hubungan  tindakan dengan status kebersihan gigi dan mulut murid kelas V dan VI  Sekolah Dasar di Peudada Kabupaten Bireuen. Penelitian ini bersifat analitik dengan desain cross sectional. Populasi   seluruh siswa kelas V dan VI Sekolah Dasar di  Kabupaten Bireuen yaitu 50 responden. Sampel dari penelitian ini adalah total populasi, Pengambilan data dengan melakukan wawancara dan pemeriksaan menggunakan uji statistic Chi-Square  (α =0,05). Hasil penelitian menunjukkan    tindakan  responden yang berkategori  baik,  memiliki status kebersihan gigi dan mulut yang sedang  (P<0,05). Dapat disimpulkan bahwa ada hubungan antara  tindakan dengan kebersihan gigi dan mulut. Diharapkan kepada guru dan tenaga kesehatan gigi   dapat bekerjasama dalam  bimbingan dan memberikan penyuluhan tentang pemeliharaan kebersihan gigi dan mulut.
PENGEMBANGAN BOOKLET DAN VIDEO EDUKASI KESEHATAN GIGI DALAM MENURUNKAN DERAJAT KEBERSIHAN GIGI DAN MULUT PADA ANAK KELAS V SD
Authors: Rusmiati Rusmiati , Marlia Linda
Published: November 2019

Upaya peningkatan kesehatan gigi dan mulut dapat dilakukan dengan tindakan preventif dan kuratif. Upaya preventif atau pencegahan penyakit gigi dan mulut mendapat prioritas utama.Insiden penyakit gigi yang tinggi pada masyarakat di wilayah Pondok Meja belum tertangani secara optimal. Rendahnya tingkat pendidikan mendukung kurangnya kesadaran akan pentingnya kesehatan gigi dan mulut masyarakat. Latar belakang ini menyebabkan kurangnya kemauan untuk melakukan perawatan penyakit gigi dan mulut khususnya anak usia dini baik di puskesmas maupun instansi kesehatan yang lain.               

Tujuan penelitian ini adalah untuk mengetahui pengembangan booklet dan video edukasi kesehatan gigi dalam menurunkan derajat kebersihan gigi dan mulut pada Anak Kelas V SD. Penelitian ini merupakan penelitian Quasi eksperimen dan pengumpulan data dari data primer yang diperoleh dari observasi derajat kebersihan gigi dan mulut (OHI-S), dan perilaku kesehatan gigi dan pengisian kuesioner. Sampel sebanyak 80 orang.

Hasil penelitian telah dihasilkan booklet dan video edukasi kesehatan gigi dan mulut dalam menurunkan derajat kebersihan gigi dan mulut pada anak kelas V SD. Dari analisis booklet dan video edukasi kesehatan gigi efektif dalam menurunkan derajat kebersihan gigi dan mulut pada anak kelas V SD ditunjukkan dengan nilai signifikansi pada 0,000 (p < 0,05). Disarankan tenaga kesehatan gigi dalam melaksanakan pelayanan asuhan agar menerapkan edukasi kesehatan gigi dengan menggunakan booklet dan video pada anak kelas V SD.
Measuring Mobile Service Satisfaction: Factor Analysis Based Study on Mobile Users of Gujarat
Authors:   Ph.D. Scholar, Sardar Patel University, Vallabh Vidyanagar, Anand, Gujarat-388120, India., Saha Sukanta , Joshi Yogesh C ,   Dean, Faculty of Management, Director, G H Patel PG Institute of Business Management, Sardar Patel University, Vallabh Vidyanagar, Anand, Gujarat-388120, India.
Published: November 2019

Determination of customer satisfaction is one of the very important parameters for the telecom operators in India. This paper undertakes analysis of different factors, which enables to ear mark the major aspects that leads to satisfaction of mobile users. The study had been carried out among the mobile users of the state of Gujarat. The paper also tries to find out the gaps between customer expectation and their service satisfaction. The study also investigates the potentiality of the revenue generation and customer retention tools for telecom operators. Opinions of about 800 mobile users from 20 districts of Gujarat were captured through close ended questionnaire. Simple random sampling method was used, where the perception of individuals of various strata of the society were captured. Other than recording the personal data of the mobile users, in terms of name, age, gender, locality, profession, income and qualification, other useful information related to satisfaction from mobile services were also captured. Levels of satisfaction of the respondents were recorded using Likert 5-Point scale system. Statistical tool SPSS was used for the dimension reduction and identification of the significant factors using factor analysis. 19 attributes of satisfaction were grouped in 5 important factors with their respective factor loadings. These factors ensures enhancement of the customer experience as well as boosting service quality ,which helps in devising suitable sustainable strategies for the mobile market today. Further the levels of satisfaction of the mobile users of Gujarat were also analyzed with respect to various zones, urban-rural, age groups as well as income categories. These conclusive evidences may help the telecom players to enhance and retain their existing customer base as well as revenue.
Implementasi Arduino Uno dan ATmega328P Untuk Perancangan Alat Keamanan Sepeda Motor
Authors: Rifai Bakhtiar
Published: November 2019

Saat ini di Indonesia jumlah sepeda motor terus mengalami peningkatan yang signifikan setiap tahunnya. Disisi lain tingkat kejahatan pencurian kendaraan bermotor (curanmor) juga mengalami peningkatan. Penelitian ini bertujuan untuk merancang sebuah alat keamanan sepeda motor yang dapat dikendalikan melalui smartphone android untuk mengurangi tingkat pencurian kendaraan bermotor (curanmor). Alat ini dipasang pada sepeda motor dan menggunakan koneksi modul bluetooth HC-05 untuk terhubung dengan smartphone android dengan jarak maksimal + 15 meter. Sistem keamanan yang digunakan adalah dengan memutus kontak sepeda motor , selain berfungsi sebagai alat keamanan juga berfungsi untuk mencari letak keberadaan sepeda motor saat berada di area parkir dengan memanfaatkan klakson dan lampu sein sepeda motor. Dalam pengaplikasiannya alat keamanan ini dapat dipasang pada semua merk dan tipe sepeda motor. Dengan adanya tambahan alat keamanan pada sepeda motor diharapkan dapat mengurangi tingkat pencurian kendaraan bermotor yang sedang merajalela