bluuebunny/crossref_metadata_2025 huggingface dataset:
Relationship between training database size and structural connectivity in artificial neural networks: Do specific local connections improve prediction accuracy?
Authors: Park Min Sik
Published: November 2021

Training of artificial neural networks is very expensive, as a large-size database is necessary. Moreover, it is usually difficult to find such large-size training databases. Hence, it will be interesting to design artificial neural networks that can be used for training with a small-size database, while maintaining a similar accuracy for prediction compared to fully connected neural networks. We studied neural networks with partial disconnections, additional bypass connections, and negative activation nodes, which are found in the neuronal systems of the human brain. By combining the fully connected neural network and the above three brain-like elements, we found that the modified neural network showed improved prediction accuracy of 13% compared to the fully connected one despite the small size of the training database. To analyze the improved neural network, the contribution of each node in the hidden layers affecting the total prediction accuracy of the neural networks was studied. We also found important local connections that improve the prediction accuracy, and discussed the design of a neural network with a small-size training database without reduction in prediction accuracy.
A Systematic Review and Meta-Analysis of HLA-Class-II Associations in Patients with IgG4 Autoimmunity
Authors: Panhuber Anja , Lamorte Giovanni , Bruno Veronica , Cetin Hakan , Bauer Wolfgang , Erber Astrid , Frommlet Florian , Koneczny Inga
Published: November 2021

Autoimmune diseases caused by pathogenic IgG4 subclass autoantibodies (IgG4-AID) include diseases like MuSK myasthenia gravis, pemphigus vulgaris or thrombotic thrombocytopenic purpura. Their etiology is still unknown. Polymorphisms in the human leukocyte antigen (HLA) gene locus, particularly in HLA-DRB1, are known genetic susceptibility factors for autoimmune diseases. We hypothesized a similar role for HLA polymorphisms in IgG4-AID and conducted a systematic review and meta-analysis with case-control studies on IgG4-AID based on MOOSE/ HuGENet guidelines. Genotype (G) and allele (A) frequencies of HLA-DQB1*05 (G: OR 3.8; 95% CI 2.44-5.9; p < 0.00001; A: OR 2.54; 95% CI 1.82-3.55; p < 0.00001) and HLA-DRB1*14 (G: OR 4.31; 95% CI 2.82-6.59; p < 0.00001; A: OR 4.78; 95% CI 3.52-6.49; p < 0.00001) and the HLA-DRB1*14-DQB1*05 haplotype (OR 6.3; 95% CI 3.28-12.09; p < 0.00001 / OR 4.98; 95% CI 3.8-6.53; p < 0.00001) were increased while HLA-DRB1*13 (G: OR 0.48; 95% CI 0.34-0.68; p < 0.0001; A: OR 0.46; 95% CI 0.34-0.62; p < 0.00001) was decreased in IgG4-AID patients. In conclusion, the HLA-DQB1*05, HLA-DRB1*14 alleles and the HLA-DQB1*05-DRB1*14 haplotype could be genetic risk factors that predispose for the production of pathogenic IgG4 autoantibodies and the HLA-DRB1*13 allele may protect from IgG4 autoimmunity.
The Effect of Simulated Seasonal Temperatures On Metarhizium Brunneum-Associated Mortality In Two Click Beetle Species, And A Degree-Day Infection Model
Authors: Kabaluk Todd , Ruau Sophie , Poon Anita
Published: November 2021

Wireworms (Coleoptera: Elateridae), the larvae of adult click beetles are subterranean and generalist crop pests that can be difficult to target. Targeting adult beetles, however, may be an effective method to lower wireworm populations. Metarhizium brunneum (Petch) kills click beetles but the mortality rate was expected to vary according to temperature. Using a thermal gradient plate to simulate daily oscillating temperatures for April, May, and June, the effectiveness of M. brunneum strains LRC112 and F52 in causing mortality to Agriotes obscurus (L.) and A. lineatus (L.) beetles was studied. Mortality was fastest in beetles exposed to June temperatures and slowest in those exposed to April temperatures, with differences among beetle species x M. brunneum strain combinations. Warmer temperatures resulted in more rapid mycelial outgrowth and conidiation in beetle cadavers, with only A. obscurus infected with M. brunneum LRC112 attaining near 100% conidiation. The number of degree days required to kill 50% of the beetles (LDD50) was least for A. obscurus infected with M. brunneum LRC112 (176) followed by A. obscurus x M. brunneum F52 (212), A. lineatus x M. brunneum LRC112 (215), and A. lineatus x M. brunneum F52 (292). Hypothetical calculations showed that M. brunneum exposure earlier in the season resulted in a longer LT50 but the earliest LT50 calendar date. Later M. brunneum exposure dates resulted in lower LT50’s, but later LT50 dates. This conceptual work demonstrates the importance of considering daily temperature oscillations, seasonality, and degree days in predicting the efficacy of entomopathogens to manage agricultural pests.
Primary Graviceptive System and Astasia: Case Report and Literature Review
Authors: Chen Ko-Ting , Huang Sheng-Yao , Chen Yi-Jye
Published: November 2021

Purpose of ReviewAstasia refers to the inability to maintain upright posture during standing, despite having full motor strength. However, the pathophysiology and neural pathways of astasia remains unclear.Recent FindingsWe analyzed 26, including ours, non-psychogenic astasia patients in English literature. Seventy-three percent of them were man, 73% were associated with other neurologic symptoms and 62% of reported lesions were at right side. Contralateral lateropulsion was very common followed by retropulsion while describing astasia. Infarction (54%) was the most commonly reported cause. Thalamus (65%) was the most commonly reported location. Infarction being the mostly likely to recover (mean:10.6 days), while lesions at brainstem had longer time to recover (mean: 61.6 days).SummaryThe underlying interrupted pathway may be the primary graviceptive system, which composed of at least five unilateral and contralateral projection fibers from vestibular nuclei to thalamic nuclei, and thalamo-cortical projections including subcortical white matter tracts and cortical areas.
The Influence of The Marine Bacillus Cereus Mc-1 Over Carbon Steel, Stainless Corrosion And Copper Coupons
Authors: Moreira-Filho Paulo , Figueiredo Paloma de Paula da Silva , Capão Artur , Procópio Luciano
Published: November 2021

The present study evaluated the influence of the marine bacteria Bacillus cereus Mc-1 on the corrosion of 1020 carbon steel, 316L stainless steel, and copper alloy. The Mc-1 strain was grown in a modified ammoniacal citrate culture medium (CFA.ico-), CFA.ico- with sodium nitrate supplementation (NO3-), and CFA.ico- with sodium chloride supplementation (NaCl). The and mass loss and corrosion rate were evaluated after the periods of seven, 15, and 30 days. The results showed that in CFA.ico- and CFA.ico- medium added NO3- the corrosion rates of carbon steel and copper alloy were high when compared to the control. Whereas the medium was supplemented with NaCl, despite the rates being above the averages of the control system, they were considerably below the previous results. In general, the corrosion rates induced by Mc-1 on 316L coupons were below the results compared to carbon steel and copper alloy. When analyzing the corrosion rate measurements, regardless of the culture medium, the corrosion levels decreased consistently after 15 days, being below the levels evaluated after seven days of the experiment. Our analyzes suggest that B. cereus Mc-1 has different influences on corrosion in different metals and environmental conditions, such as the presence of NO3- and NaCl. These results can help to better understand the influence of this bacteria genus on the corrosion of metals in marine environments.
Performance Investigation of Electrochemical Assisted HClO/Fe2+ Process For The Treatment of Landfill Leachate
Authors: Ye Zhihong , Miao Fei , Zhang Hui
Published: November 2021

The feasibility of removal of COD and ammonia nitrogen (NH4+-N) from landfill leachate by electrochemical assisted HClO/Fe2+ process is demonstrated for the first time. The performance of active chlorine generation at the anode was evaluated in Na2SO4/NaCl media, and a higher amount of active chlorine was produced at greater chloride concentration and higher current density. The probe experiments confirmed the coexistence of hydroxyl radical (·OH) and Fe(IV)-oxo complex (FeIVO2+) in the HClO/Fe2+ system. The influence of initial pH, Fe2+ concentration and applied current density on COD and NH4+-N abatement was elaborately investigated. The optimum pH was found to be 3.0, and the proper increase in Fe2+ dosage and current density resulted in higher COD removal due to the accelerated accumulation of ·OH and FeIVO2+ in the bulk liquid phase. Whereas, the NH4+-N oxidation was significantly affected by the applied current density because of the effective active chlorine generation at high current, but was nearly independent of Fe2+ concentration. The reaction mechanism of electrochemical assisted HClO/Fe2+ treatment of landfill leachate was finally proposed. The powerful ·OH and FeIVO2+, in concomitance with active chlorine and M(·OH) were responsible for COD abatement and active chlorine played a key role in NH4+-N oxidation. The proposed electrochemical assisted HClO/Fe2+ process is a promising alternative for the treatment of refractory landfill leachate.
Transient Receptor Potential Melastatin 8 Contributes to Cystitis-Induced Neuronal Sprouting and Pain Hypersensitivity Through AKT/Mtor Signaling Pathway in Interstitial Cystitis/ Bladder Pain Syndrome
Authors: Wu Liyang , Zhou Fei , Zhang Jianzhong , Chang Ran , Wang Fei , Zhang Zhaohua , Zhang Peng
Published: November 2021

Transient receptor potential melastatin 8 (TRPM8) is associated with the pathophysiology of interstitial cystitis (IC)/ bladder pain syndrome (BPS). We investigated the mechanism of TRPM8 in neuroproliferation and pain, as well as the relevance of the Akt/mTOR signaling pathway in mice with IC/BPS. The model of IC/BPS was established in wild and TRPM8-/- mice. The mechanical sensitivity was measured. The number of neurite segments, length of neurites, and density of neurites were all counted. IL-6 and norepinephrine levels were detected by ELISA, Western blot was used to detect protein levels of TRPM8, Akt, p-Akt, mTOR, p-mTOR. Immunofluorescence was used to detect TRPM8 expression and distribution in neurites, neurons, and sensory nerves in mouse bladder tissue. Pain threshold in the IC / BPS group was decreased, and neurite segments, length, and density were all significantly enhanced when compared to the control group. The parameters in the TRPM8 agonists(menthol)+IC/BPS group were more statistically significant. Neurite number and density were lower in TRPM8-/-+IC/BPS mice than in IC/BPS mice. The expression of TRPM8 and the ratios of p-Akt/Akt and p-mTOR/mTOR rose in the IC/BPS group. In TRPM8-/-+IC/BPS mice, the ratios of p-Akt/Akt and p-mTOR/mTOR were not substantially different from those in the control group. TRPM8-/-+IC/BPS mice had considerably lower levels of serum IL-6 and urine norepinephrine than wild-type IC/BPS mice. TRPM8 can induce pain hypersensitivity and sensory nerve proliferation by activating Akt/mTOR pathway and raising the expression of IL-6 and norepinephrine in IC/BPS models. These findings offer new perspectives on IC/BPS treatment.
Mothers’ Knowledge And Attitude Towards Infant And Young Child Feeding Practices In Shashemene City, Oromia- Ethiopia 2020
Authors: Ahmed Junayde Abdurahmen , Kumsa Kebede , Hussen Kelil , Yalew Aster
Published: November 2021

The scheme youngsters are fed has a huge impact on their development. Poor breastfeeding and infant feeding practices have a negative impact on children's health and nutritional status.Purpose: The study's aim was to analyze mothers’ knowledge, attitudes, and practices (KAP) regarding supplemental feeding of children aged 6–23 months in Shashamene City, Oromia Ethiopia.Methods : A community based cross-sectional study was conducted from January 1-january 28 using a two-stage sampling procès to chose 536 women with children aged 6 to 23 months for the study. The Statistical Package for the Social Sciences (SPSS) software were used to analyze the data. The characteristics related with complementary feeding (CF) practice were identified using logistic regression, and statistical significance was determined at p-value of less than 0.05.Results: This study found that complementary food was first introduced at the age of 6 months, 353 (68.4 %) and 167 (32.1 %) at greater and Less than 6 months age with bottle feeding (AOR: 0.27, 95 % CI: (0.13, 0.55)). Sources of information about the advantages of breast milk (AOR:4.3495 % CI (1.96,9.60)), minimum dietary diversity (AOR:2.21,95 % CI(1.01,4.85)), knowledge about iron-rich foods (AOR:0.029,95 % CI (0.04,0.21)), knowledge about iodine-rich foods (AOR:0.022,95 % CI (0.03,0.16)) were discovered to be independent predictors of mother’s knowledge on appropriate infant feedingConclusion: Mothers' knowledge about the timing of CF practices is low in this study. Botte feeding, sources of information about the benefits of breast Milk, a minimum dietary diversity, knowledge about infant and young child feeding were the indépendant factors that significantly associated with mother's knowledge of appropriate infant and Young Child feeding practices.
Sero epidemiology of Cattle Brucellosis and Associated Risk Factors in Amibara District of Afar Region, Ethiopia
Authors: Wegi Fekadu Gutema , Bekele Juhar Tesfaye
Published: November 2021

Bovine brucellosis is the most common but under reported bacterial diseases known to create a serious socio-economic problem in both intensive and extensive livestock production systems. A cross-sectional study was conducted to determine seroprevalence and associated risk factors of cattle brucellosis in Amibara district of Afar region, Ethiopia from October 2019 to May 2020. A total of 181 cattle sera were collected and screened using Rose Bengal Plate Test (RBPT) and reactive samples were further confirmed by complement fixation test (CFT). Risk factors associated with cattle brucellosis were assessed during serum sample collection using data collection format. As a result, the overall seroprevalence of cattle brucellosis was 10.5% and 2.2% by RBPT and CFT respectively. Assessment of potential risk factors showed that, Age (χ2=6.77, p=0.021), number of parity (χ2=9.433, p=0.004), abortion history (χ2=16, p=0.002) and history of placental retention (χ2=19.1, p=0.003) showed statistically significant association with brucellosis seropositivity in cattle. Based on firth’s bias reduced logistic regression analysis, only multiparous animal (OR=10.68, P=0.0042, 95% CI=-1.19-7.595) and animals with placental retention (OR=72.72, P=0.0026, 95% CI=1.46-9.272) showed statistically significantly association with brucella infection in cattle. In conclusion, the results of the current study indicate the presence of brucellosis in cattle in Amibara district of Afar region, Ethiopia. Hence, implementing preventive measures such as developing vaccination strategy, regular screening and culling of the reactive animal is important to create diseases free herd.
A Locking Plate Designed With Cluster of Head Screws Would Be Biomechanically Superior Than Conventional Buttress Plate For The Fixation of Posteromedial Tibial Plateau Fractures: A Computational Assessment
Authors: Lin Kai-Cheng , Tarng Yih-Wen , Lin Kun-Jhih , Wei Hung-Wen
Published: November 2021

Background: Dealing with high-energy fractures of the tibial plateau remains a challenge despite advances in implants, surgical approaches, and imaging methods. Posterior buttress plate is most commonly used implant but the fixation stability is still a challenge. Recently, a newly designed tibial locking plate was introduced that aims to provide better fixation strength for tibial plateau split fracture. This study compared the biomechanical strength of three different posteromedial tibial plateau split fracture fixation methods. Methods: The tibial plateau fractures were simulated using a human tibiae model. Each fracture model was virtually implanted with one of the three following constructs, proximal medial tibial plate (PMT), proximal posterior medial tibial plate (PPMT), and posterior T-shaped buttress plate (TBP). Posteromedial fragment vertical subsidence was measured under 2000 N joint contact force. The maximum Equivalent stress on the bone plate and bone screw and the construct stiffness were determined.Results: The proximal medial tibial plate (PMT) allowed the least posteromedial fragment subsidence and produced higher construct stiffness than each of the other two constructs. However, the proximal posterior medial tibial plate (PPMT) showed higher stiffness than the T-shaped buttress plate (TBP). The maximum Equivalent stress was the smallest for the proximal medial tibial plate (PMT).Conclusion: This study showed that the proximal medial tibial locking plate or proximal posterior medial tibial locking plate were biomechanically more stable fixation methods for posteromedial split tibial plateau fractures.
Towards Data-Driven Evaluation of Site Effects From Coda of Strong Motion Timeseries Using Recurrent Neural Networks
Authors: Izadi Mona , Matsushima Shinichi
Published: November 2021

It is known that coda of strong motion records are products of numerous scatterings of body and surface waves within the subsurface soil structure. Several studies have successfully simulated coda wave envelopes by modelling the energy decay. However, due to limitations of quantifying soil heterogeneities, deterministic simulation of scattered wavefields is much more challenging. Therefore, the reverse problem of estimating non statistical properties of subsurface structure from coda waves remains a theoretical potential. On the other hand, machine learning techniques have proven useful in dealing with problems of similar nature, where a theoretical solution is imaginable yet hard to achieve due to a great number of unknown variables. This study utilizes artificial neural networks to propose a new approach of evaluating site effects from coda waves, with the future prospect of obtaining the similar results from microtremor records. A Long Short-Term Memory recurrent neural network is designed using Tensorflow 2 library in Python language. The study utilizes a strong motion dataset consisting of about 60000 3-component records as well as borehole data at 464 stations of Kiban-Kyoshin Network across Japan. The prediction input is coda wave timeseries of strong motion records, defined based on a parametric energy criterion, and all 3 seismograph components EW, NS and UD are used as parallel sequential features. In the first step, the prediction target is a vector of 3 site effect proxies namely, time-averaged shear-wave velocities for the upper 30-m depth Vs30 and the upper 10-m depth Vs10 and predominant frequency f0. In this step, different model parameter combinations are tested to ensure the basic model’s ability in extracting site-specific information from the input coda waves. One of the combinations is then used in the second step, in which the prediction target is surface to downhole ratio of Fourier Amplitude Spectra. For each of the 3 components EW, NS and UD, 100 identical networks are trained to each predict the desired ratio at a certain target frequency. Accuracy of test sample predictions confirms applicability of the proposed approach as well as its potential for future works on microtremor timeseries instead of coda waves.
Proteomic Analysis of Glomerular Proteins in Primary and Bucillamine-induced Membranous Nephropathy
Authors: Kaga Hajime , Matsumura Hirotoshi , Suzuki Takehiro , Dohmae Naoshi , Odaka Masafumi , Komatsuda Atsushi , Takahashi Naoto , Wakui Hideki
Published: November 2021

The aim of this study was to characterize glomerular proteins in primary membranous nephropathy (pMN) and drug-induced secondary MN (sMN) by laser microdissection and comparative proteomic analysis. We used renal biopsy specimens from 6 patients with anti-phospholipase A2 receptor autoantibody (PLA2R Ab) (+) pMN, 6 patients with PLA2R Ab (‒) pMN, 6 patients with bucillamine (BCL)-induced sMN, and 5 control cases (time 0 transplant biopsies). Proteins were extracted from laser-microdissected glomeruli and analyzed using mass spectrometry. The quantification values of protein abundance in each MN group were compared with those in the control group. More than 800 proteins with high confidence were identified. Principal component analysis revealed a different distribution between the pMN and sMN groups. For further analysis, 441 proteins matched with ≥3 peptides were selected. Among the pMN and sMN groups, we compared the profiles of several protein groups based on the structural and functional characteristics, such as immunoglobulins, complements, complement-regulating proteins, podocyte-associated proteins, glomerular basement membrane proteins, and several proteins that are known to be associated with kidney diseases, including MN. Between the pMN and BCL-induced sMN groups, we observed common and different alterations in protein levels such as known disease-associated proteins and potential disease marker proteins.
A Tested Method for Assessing and Predicting Weather-Crime Associations
Authors: Algahtany Mofza , Kumar Lalit , Barclay Elaine
Published: November 2021

Few studies have focused on haze as a weather element and its correlation with crime. In this study, we examined haze as a weather variable to investigate its effects on criminal activity. We used both monthly crime data and weather records to build a regression model to predict crime cases considering three weather factors; temperature, humidity and haze. We applied this model in two different climate provinces in Saudi Arabia, namely, Riyadh and Makkah. Riyadh is a desert area and observes haze approximately 17 days per month on average, while Makkah is a coastal area observing haze an average of 4 days per month. We found a measurable relationship between each of these three variables and criminal activity. However, haze had the most effect on theft, drug and assault crimes in Riyadh compared to the other elements. Temperature and humidity have a significant relationship with crime in Makkah, while haze had no significant influence in that region.
Humic Acid Promotes the Adsorption of Lead onto PSMPs: Site Energy Distribution Theory and Fluorescence Quenching Analysis
Authors: Lu Xiaotian , Zeng Feng , Wei Shuyin , Gao Rui , Abdurahman Abliz , Wang Hao , Liang Weiqian
Published: November 2021

Microplastics (MPs) have a great potential to adsorb heavy metal pollutants such as Pb2+ and the dissolved organic matter(DOM) in the aquatic environment will affect this adsorption behavior. In this study, batch experiments were performed to investigate the adsorption characteristics of Pb2+ onto polystyrene microplastics (PSMPs) in the presence and absence of HA(a kind of representative DOM). The adsorption kinetics of Pb2+ onto PSMPs conformed to the pseudo-second order model, and the adsorption isotherms were well fitted by the Langmuir model. With the increase of HA concentration, the Pb2+ adsorption onto PSMPs increased. Site energy distribution analysis showed that the presence of HA increased the adsorption site energy of PSMPs, thus enhancing the adsorption capacity for Pb2+. The fluorescence quenching analysis of HA further indicated that part of HA were adsorbed onto PSMPs, which increased additional binding sites on the surface of PSMPs. This was attributed to the abundant functional groups that could react with Pb2+ of HA. The pH and ionic strength of solution changed the structure of HA and the adsorption sites of PSMPs, which influenced the adsorption capacity of PSMPs for Pb2+. This study illustrated the effect of HA on the process and mechanism of Pb2+ adsorption onto PSMPs, and provided more information for the evaluation of environmental behavior and toxicological effects of microplastics in aquatic environments.
Comparative Growth Performance and Carcass Traits of Calves of Different Cattle Breeds Fed Pasture and Concentration
Authors: Saeed Mahabad Ibrahim , Sabow Azad Behnan , Muhamad Aram Ahmad , Hermiz Hani Nasser
Published: November 2021

The aim of the current study was to explore growth performance and carcass traits using ultrasound measurements of calves of different cattle breeds under pasture and concentration feeding system. A total of 25 male cattle calves between the ages of 6 to 7 months with an average body weight of 162.37 ± 7.7 kg were fed two separate fattening trials for seven months (pasture and finishing period). Animals were divided into five groups (five of each breed): Kurdi, Rustaki, Jenoubi, Herford and Friesian crossbred. The average daily weight gain was similar (P > 0.05) for calves of different cattle breeds during growth (pasture) period, while these values were significantly higher in Kurdi, Rustaki and Friesian crossbred calves during finishing period. The body size measurements were similar among calves of different cattle breeds. The highest increase in Longissimus muscle area and subcutaneous fat thickness was observed in Kurdi, Rustaki and Friesian crossbred calves. In conclusion, In conclusion, Kurdi, Rustaki and Friesian crossbred calves possess the promising potential for beef production under the barn rearing or finishing period.
Investigation of non-canonical terpene biosynthesis
Authors:   , Drummond Laura
Published: November 2021

Terpenes are one of the largest and most diverse class of natural products, produced by organisms from all kingdoms of life and with important applications in the pharma, flavor and fragrance industries. Well-known examples of terpenes are the pharmaceuticals artemisinin and taxol, the flavor and fragrance compounds menthol, santalol and sclareol, the structural material polyisoprene and the biofuel precursor farnesene. The methods and results presented in this work offer a variety of ways to modify terpene precursors for the creation of new terpene molecules. The application of these methodologies in well-established production systems could lead to the production of new substances, with applications in the industrial fields of pharmaceuticals, flavors and fragrances, and biofuels.
Controlador PI2 para las velocidades de un robot agrícola evaluado usando Hardware en el lazo (HIL)
Authors: Sánchez Herrera Guillermo , Riveros Guevara Adriana , Solaque Guzman Leonardo Enrique
Published: November 2021

La agricultura es considerada como una de las actividades más esenciales para el ser humano debido a que por medio de esta se obtienen los alimentos. Con el objetivo de aumentar la producción y de mejorar el estado de los alimentos se han empezado a usar diferentes robots, en la agricultura de precisión. Con este fin se desarrolló el robot para agricultura Ceres, diseñado y construido para asistir cultivos de hortalizas. En este documento, se el desarrollo para lograr el seguimiento de las velocidades lineales y angulares por parte del robot mediante el uso de un controlador dinámico. En primer lugar, se muestra la modelación matemática del robot y la identificación de los diferentes parámetros del modelo. Posteriormente, se encuentra la linealización el modelo y dado el acoplamiento entre velocidad lineal y angular, el diseño de desacopladores dinámicos en un punto de operación determinado por las referencias a seguir. Finalmente, se utiliza un controlador PI con doble acción integral y se programa en un sistema embebido verificando su desempeño mediante pruebas de hardware en el lazo (HIL). Los resultados muestran tiempos de estabilización y seguimientos adecuados para futuras integraciones con la planta real y controladores de trayectoria.
Conducción segura de una plataforma móvil en configuración diferencial, basado en técnica de control predictivo.
Authors: Moreno Gonzalez Danilo Hernando , Solaque Guzman Leonardo Enrique , Riveros Guevara Adriana
Published: November 2021

Dentro del proceso de conducción segura, particularmente en el campo del agro donde interviene una plataforma robótica, se hace necesario salvaguardar tanto la estructura como su entorno. En la literatura se pueden encuentran aplicaciones orientadas a ‘’self-driving’’, donde el objetivo es conseguir estrategias que guíen y controlen sistemas como automóviles o robots inmersos en ambientes dinámicos. El presente trabajo plantea una opción para que un robot en configuración diferencial (específicamente la plataforma CERES) se desplace de manera segura en un cultivo, previniendo colisiones o daños a ella y su entorno. De esta manera, se tiene como resultado la implementación de un control basado en una técnica de control predictivo, donde se integran las restricciones dinámicas y las saturaciones de las señales de control dentro de la función objetivo a solucionar. El control desarrollado considerar las restricciones de velocidad máximas y mínimas proporcionadas por los motores eléctricos utilizados. El error cuadrático medio y su varianza fueron los criterios estadísticos usados como métricas a la hora de verificar el comportamiento del sistema al seguir una trayectoria referencia.
Módulo de control de acceso a zonas restringidas de la granja, Román Gómez Gómez del Politécnico Colombiano Jaime Isaza Cadavid sede Marinilla Antioquia, Colombia
Authors: Puche William Segundo , Pizarro Duque Juan Pablo
Published: November 2021

Este proyecto plantea la implementación prototipo de un módulo de seguridad y control de acceso en zonas restringidas, donde se realizan procesos de investigación y producción en la granja Román Gómez Gómez del Politécnico Colombiano Jaime Isaza Cadavid, para mejorar el sistema actual de control de acceso basado en tecnología QR, aplicado en la entrada principal de la granja. Se caracterizará, todos los elementos de hardware y software de la aplicación existente; a partir de esta, se diseña un protocolo de seguridad para autenticar y controlar el acceso de personas; posteriormente, se construye el módulo que contiene el protocolo, donde se interviene el código fuente de la aplicación, para autorizar y registrar las visitas en cada una de las zonas visualizando tiempo real, finalmente se validan las mejoras sobre el sistema actual mediante una prueba de funcionamiento.
Modelo web semántico para contactar grupos musicales en la ciudad de Bogotá
Authors: Katz Delgado Juan Esteban , Espinel Ortega Álvaro , Vega Escobar Adriana Marcela
Published: November 2021

La presente investigación muestra el desarrollo de un modelo web semántico cuyo objetivo es crear una base de conocimiento de grupos y géneros musicales tradicionales de la ciudad de Bogotá, la forma en la que se transmite la información hacia y desde la base de conocimiento creada, es mediante el uso de un API basado en arquitectura REST, que utiliza el protocolo HTTP, esta información se presenta en un portal Web.

Los visitantes y usuarios que ingresen al portal pueden realizar búsquedas que son basadas en SPARQL, para contactar grupos musicales de acuerdo con una serie de filtros tales como: ubicación geográfica, género musical, trayectoria en el mercado, tarifas entre otros, este desarrollo se convierte en una alternativa digital para que los grupos musicales de la ciudad de Bogotá puedan promocionar sus servicios y generen un canal virtual de contacto rápido y seguro, con ello se busca mejorar la calidad de vida de los integrantes de agrupaciones musicales.
Inteligencia Artificial en Relación a la Medicina
Authors: Tuirán Manuel
Published: November 2021

El objetivo de este estudio es determinar cómo la Inteligencia Artificial se relaciona a la Medicina y aporta con efectos positivos y negativos a esta última, se hace una investigación exhaustiva en diferentes bases de datos para la búsqueda de artículos que relacionen estos estudios, sus desarrollos y la postura de los autores frente a las temáticas abordadas.
Sustainability and Competitiveness of Logistics Services Providers in Indonesia
Authors: Kuncoro Engkos Achmad , Saputra Dony , Cahyadi Robin , Ikhsan Ridho Bramulya
Published: November 2021

With the rise of competition and challenges for Logistics Service Providers (LSP) in Indonesia, competitiveness and sustainability are needed. The research explored the logistical process and identified the factors that built the competitiveness of LSP, such as Third-Party Logistics (3PL) in Indonesia. The research also identified the factors and relationships of their competitiveness and sustainability. The research methodology was explorative with the qualitative-observation approach. The applied sampling technique was purposive and snowball. The participants were 10 LSP operating in Indonesia: Kühne + Nagel, FedEx, Damco, DB Schenker, APL Logistics, Panalpina, Agility Logistics, TNT Express, Röhlig Logistic, and Rhenus Logistic. The data were unstructured interviews with 10 middle managers with the job position of leader and manager. Then, the data were analyzed using NVivo 10 software. The result is the recommendation of the competitiveness model for 3PL that the providers can apply to achieve its sustainability. Moreover, the factors that drive the competitiveness of LSP are price, service, people, and network. Meanwhile, innovation and credibility will improve competitiveness toward sustainability of 3PL. Based on the findings, it can offer opportunities for further research on the relationship and influence of these variables on other similar companies in other countries.
Propuesta metodológica para la gestión del aprendizaje organizacional y la productividad en micro, pequeñas y medianas empresas mexicanas
Authors: Aguiar Dr. David Enrique , Hernández Ayón Dr. Francisco Javier , Plascencia Cuevas Dra. Tania N.
Published: November 2021

En México, a pesar de que organismos como la Organización Internacional del Trabajo (OIT), junto con instituciones federales como la Secretaría de Economía y la Secretaría del Trabajo y Previsión Social, promueven y financian la implementación de métodos para la gestión de la productividad en las micro, pequeñas y medianas empresas (MIPyMES), estos no perduran más allá de tres meses desde el término de su adopción en las organizaciones. El objetivo de este trabajo es presentar un método para la gestión de la productividad de las organizaciones enmarcado en el aprendizaje organizacional con alta perdurabilidad. Desde el paradigma cualitativo, y a través de la investigación-acción, se desarrolló el programa para la gestión del aprendizaje organizacional y la productividad (PROGAP).
use of ‘I-Do’ methodology in integrating moral characters into the development of ELT materials for transactional speaking skills
Authors: Kaharuddin Kaharuddin , Ismail Ismail
Published: November 2021

This study is aimed at improving the quality of teaching English at the university level by aligning the students’ needs and the expectations of the lecturers (a needs analysis) with moral values in developing moral character-based English language teaching materials. Development research method is used to carry out this research by employing the ‘I-DO’ methodology which contains three distinct phases namely; 1). The input phase which is passed by a needs analysis involving 60 participants (55 students and 10 lectures). The participants were purposively selected. Questionnaires were used to collect the data which were analyzed by using descriptive approach. 2). The development Phase which is passed by formulating goals and objectives based on the information gathered from the needs analysis. 3) The output phase which is completed by making lesson plans, and producing prototype of the moral value-based teaching materials. This research has built one prototype of a well-developed ELT material for transactional speaking skill. We believe that our findings on the use of ‘I-DO’ methodology could have a profound impact on the way ELT materials is developed in language program.
The Influence of Firm Size, Audit Firm Size, Profitability, Solvability, and Public Ownership on Audit Delay
Authors: Ubwarin Katherine Handayani , Setyorini Christina Tri , Bawono Icuk Rangga
Published: November 2021

Abstract: This study aims to measure company size, company audit size, profitability, solvency and public ownership toward audit delay. It is an explanatory study with a quantitative approach. It selects transportation industries listed in Indonesia Stock Exchange (BEI) on period of 2008-2015 as population. It took 64 samples from public companies using purposive sampling method. Data were analyzed using Multiple Regression Analysis that include descriptive statistics, classical assumption test, and hypothesis testing (multiple linear regression, simultaneous test and partial test). The results of this study proved to be useful and efficient. Based on test results in this study, it can be concluded that firm size and audit firm size have an effect on audit delay. Meanwhile, profitability, Solvability, and public ownership have no effect to audit delay.Keywords: audit delay, audit firm size, firm characteristicsPengaruh Ukuran Perusahaan, Ukuran Kantor Audit, Profitabilitas, Solvability, dan Kepemilikan Publik terhadap Audit DelayAbstrak: Penelitian ini bertujuan untuk mengukur ukuran perusahaan, ukuran audit perusahaan, profitabilitas, solvabilitas dan kepemilikan publik terhadap penundaan audit. Jenis penelitian ini adalah penelitian eksplanatori dengan pendekatan kuantitatif. Penelitian ini memilih industri transportasi yang terdaftar di Bursa Efek Indonesia (BEI) pada periode 2008-2015 sebagai populasi. Penelitian ini mengambil 64 sampel dari perusahaan publik dengan menggunakan metode purposive sampling. Data dianalisis dengan menggunakan Analisis Regresi Berganda yang mencakup statistik deskriptif, uji asumsi klasik, dan pengujian hipotesis (regresi linier berganda, uji simultan dan uji parsial). Hasil penelitian ini terbukti bermanfaat dan efisien. Berdasarkan hasil pengujian dalam penelitian ini, dapat disimpulkan bahwa ukuran perusahaan dan ukuran kantor audit berpengaruh terhadap audit delay. Sementara itu profitabilitas, Solvabilitas, dan kepemilikan publik tidak berpengaruh terhadap audit delay.Kata kunci: audit delay, karakteristik perusahaan, ukuran kantor audit
A Critical Review of Digital Marketing: Effect of Flow and Impulse Buying
Authors: Azizah Mt Rahmawati , Octavia Ria
Published: November 2021

Abstract: This study aims to examine the influence of user belief on flow, willingness to buy on flow, and flow on impulse buying behavior. The subjects of this research include Students/College Students, Civil Servants, Private Employees, Lecturers/Teachers, Professionals (accountants, consultants, etc.). The technique used is non-probability sampling , purposive sampling, with a total sample of 300 respondents aged 17 to 45 and are users of the digital application, Shopee, in Indonesia. The research instrument was an online questionnaire and was analyzed using multiple linear regression analysis. The results of this study showed that the dimension of the perceived usefulness of user belief has a positive effect on flow. Willingness to buy has a positive effect on flow and flow has a positive effect on impulse buying. Meanwhile, the ease of use dimension of the user belief variable has no positive effect on flow.Keywords: flow, willingness to buy, user belief, impulse buying behavior. Tinjauan Kritis Pemasaran Digital: Pengaruh Flow dan Pembelian Impulsif Abstrak: Penilitian ini bertujuan untuk menguji pengaruh kepercayaan pengguna (user belief) terhadap flow, willingness to buy terhadap flow, dan flow terhadap perilaku pembelian spontan. Subjek penelitian ini meliputi Pelajar/Mahasiswa, PNS, Karyawan Swasta, Dosen/Guru, Profesional (akuntan, konsultan, dll). Teknik yang digunakan adalah non-probability sampling dengan jenis purposive sampling dengan kriteria usia 17 hingga 45 tahun dengan total sampel 300 responden dan merupakan pengguna aplikasi digital Shopee di Indonesia. Instrumen penelitian ini adalah kuesioner yang dibuat secara daring dan dianalisis dengan menggunakan analisis regresi linier berganda. Hasil penelitian ini menemukan bahwa dimensi manfaat yang dirasakan dari kepercayaan pengguna berpengaruh positif terhadap flow, willingness to buy berpengaruh positif terhadap flow dan  flow berpengaruh positif terhadap pembelian spontan. Sedangkan, dimensi kemudahan menggunakan dari variabel kepercayaan pengguna tidak berpengaruh positif terhadap flow.Kata kunci: flow, willingness to buy, kepercayaan pengguna, perilaku pembelian spontan.
Population Health Surveillance Using Mobile Phone Surveys in Low- and Middle-Income Countries: Methodology and Sample Representativeness of a Cross-sectional Survey of Live Poultry Exposure in Bangladesh
Authors: Berry Isha , Mangtani Punam , Rahman Mahbubur , Khan Iqbal Ansary , Sarkar Sudipta , Naureen Tanzila , Greer Amy L , Morris Shaun K , Fisman David N , Flora Meerjady Sabrina
Published: November 2021

Background

Population-based health surveys are typically conducted using face-to-face household interviews in low- and middle-income countries (LMICs). However, telephone-based surveys are cheaper, faster, and can provide greater access to hard-to-reach or remote populations. The rapid growth in mobile phone ownership in LMICs provides a unique opportunity to implement novel data collection methods for population health surveys.

Objective

This study aims to describe the development and population representativeness of a mobile phone survey measuring live poultry exposure in urban Bangladesh.

Methods

A population-based, cross-sectional, mobile phone survey was conducted between September and November 2019 in North and South Dhaka City Corporations (DCC), Bangladesh, to measure live poultry exposure using a stratified probability sampling design. Data were collected using a computer-assisted telephone interview platform. The call operational data were summarized, and the participant data were weighted by age, sex, and education to the 2011 census. The demographic distribution of the weighted sample was compared with external sources to assess population representativeness.

Results

A total of 5486 unique mobile phone numbers were dialed, with 1047 respondents completing the survey. The survey had an overall response rate of 52.2% (1047/2006) and a co-operation rate of 89.0% (1047/1176). Initial results comparing the sociodemographic profile of the survey sample to the census population showed that mobile phone sampling slightly underrepresented older individuals and overrepresented those with higher secondary education. After weighting, the demographic profile of the sample population matched well with the latest DCC census population profile.

Conclusions

Probability-based mobile phone survey sampling and data collection methods produced a population-representative sample with minimal adjustment in DCC, Bangladesh. Mobile phone–based surveys can offer an efficient, economic, and robust way to conduct surveillance for population health outcomes, which has important implications for improving population health surveillance in LMICs.
Adjusting to the Reign of Webinars: Viewpoint
Authors: Karabacak Mert , Ozkara Burak Berksu , Ozcan Zeynep
Published: November 2021

Background

With the integration of COVID-19 into our lives, the way events are organized has changed. The Cerrahpaşa Neuroscience Days held on May 8-9, 2021, was one of the conferences that was affected. The annual conference of the student-based Cerrahpaşa Neuroscience Society transitioned to the internet for the first time and had the premise of going international.

Objective

With this study, we aim to both discuss how a virtual conference is organized and perceived, and where our conference stands within the literature as a completely student-organized event.

Methods

The conference was planned in accordance with virtual standards and promoted to primarily medical schools. During the execution, there were no major issues. The feedback was collected via a form developed with Google Forms.

Results

Out of 2195 registrations, 299 qualified to receive a certificate. The feedback forms revealed a general satisfaction; the overall quality of the event was rated an average of 4.6 out of 5, and the ratings of various Likert scale–based questions were statistically analyzed. Open-ended questions provided improvement suggestions for future events.

Conclusions

The virtual Cerrahpaşa Neuroscience Days was a success in organization and received positive feedback from the participants. We aim to ground future events on this experience.
Adjusting to the Reign of Webinars: Viewpoint (Preprint)
Authors: Karabacak Mert , Ozkara Burak Berksu , Ozcan Zeynep
Published: November 2021

BACKGROUND

With the integration of COVID-19 into our lives, the way events are organized has changed. The Cerrahpaşa Neuroscience Days held on May 8-9, 2021, was one of the conferences that was affected. The annual conference of the student-based Cerrahpaşa Neuroscience Society transitioned to the internet for the first time and had the premise of going international.

OBJECTIVE

With this study, we aim to both discuss how a virtual conference is organized and perceived, and where our conference stands within the literature as a completely student-organized event.

METHODS

The conference was planned in accordance with virtual standards and promoted to primarily medical schools. During the execution, there were no major issues. The feedback was collected via a form developed with Google Forms.

RESULTS

Out of 2195 registrations, 299 qualified to receive a certificate. The feedback forms revealed a general satisfaction; the overall quality of the event was rated an average of 4.6 out of 5, and the ratings of various Likert scale–based questions were statistically analyzed. Open-ended questions provided improvement suggestions for future events.

CONCLUSIONS

The virtual Cerrahpaşa Neuroscience Days was a success in organization and received positive feedback from the participants. We aim to ground future events on this experience.
Enhancing the Reading for Pleasure Habit of the Students of Samtse College of Education
Authors: - Yangdon , S. Daker, , U. Dorji, , T. Gyeltshen, , K. Wangmo, , - Wangmo
Published: November 2021

Reading is an essential skill for everybody especially for the students of Samtse College of Education who are future teachers. They need to read to enhance their communication skills, upgrade their knowledge and skills and be role models in reading for their students. However, we have found that the reading for pleasure habit among the students is poor. Students generally use social media during their leisure time instead of reading which is a concern both for their lecturers and the institution. An action research study was carried out to improve students’ reading for pleasure habit. Data for the study were gathered using a survey and interview. A total of 325 students completed the survey and 57 students participated in the interview. The data were collected twice; before (baseline) and after the intervention. Comparison of means was used to analyse the quantitative data and the qualitative data were analysed thematically. Following the analysis of the baseline data, three intervention strategies were employed; Our Time To Enjoy Reading (OTTER), Self-indulgence Reading, and Raffle Draw. These strategies were implemented in all the 16 classes for a period of 8 weeks. The comparison of the analysis of the pre-and post-data showed that the interventions have been effective in promoting the reading for pleasure habit of the students.