bluuebunny/crossref_metadata_2025 huggingface dataset:
Application of Machine Learning Techniques to Analyze Patient Returns to the Emergency Department
Authors: Sarasa Cabezuelo Antonio
Published: August 2020

The study of the quality of hospital emergency services is based on analyzing a set of indicators such as the average time of first medical attention, the average time spent in the emergency department, degree of completion of the medical report and others. In this paper, an analysis is presented of one of the quality indicators: the rate of return of patients to the emergency service less than 72 h from their discharge. The objective of the analysis was to know the variables that influence the rate of return and which prediction model is the best. In order to do this, the data of the activity of the emergency service of a hospital of a reference population of 290,000 inhabitants were analyzed, and prediction models were created for the binary objective variable (rate of return to emergencies) using the logistic regression techniques, neural networks, random forest, gradient boosting and assembly models. Each of the models was analyzed and the result shows that the best model is achieved through a neural network with activation function tanh, algorithm levmar and three nodes in the hidden layer. This model obtains the lowest mean squared error (MSE) and the best area under the curve (AUC) with respect to the rest of the models used.
Location Decisions of New Manufacturing Firms in Ecuador. Agglomeration Mechanisms
Authors: Torres-Gutiérrez Tania Paola , Correa-Quezada Ronny , del Río-Rama María de la Cruz , Álvarez-García José
Published: August 2020

This investigation seeks to explore the importance of agglomeration mechanisms in the location decisions of new manufacturing firms in Ecuador, based on sector and canton level data for the 2000–2010 period. A model is proposed to explore the relative importance of agglomeration mechanisms in location decisions of new manufacturing companies, a regression is performed using instrumental variables, the econometric estimation is developed, and an identification strategy is proposed. The results of the empirical analysis show that the learning mechanism, and history, have a positive and significant impact on the creation of new firms. An increase of 1% in the transfer of knowledge in the industries and cantons of the country is correlated with the increase in the location of new firms in the order of 9.2%. In turn, history has a positive and significant effect on the creation of new firms, in industries and cantons characterized by a past industrial environment. Even when the learning mechanism and history are controlled by provinces, sectors, and cantons, they continue to be the most important determinants of the location of new firms. This evidence could be attributed to the public investment in Ecuadorian industry in recent years. In this sense, the contribution of this work is found in the empirical distinction of the mechanism that favors or inhibits the location decisions of new companies. The analysis was replicated for a three-digit sectorial disaggregation level, to verify whether the agglomeration mechanisms operate differently on a different industrial scale. The results suggested that there were no differences to be considered. When the analysis was done excluding the cantons of Quito, Guayaquil, and Cuenca, given their high representation in terms of the birth of industries and employment, the results were consistent with those previously mentioned. However, it is so only with respect to history, which in this case accounts for 38.8% of the birth of firms; whereas, matching accounts for an order of 38.9% in the period of analysis. This result is explained in the context of the country’s industrial policy.
RNA: A Reject Neighbors Algorithm for Influence Maximization in Complex Networks
Authors: Wang Dongqi , Yan Jiarui , Chen Dongming , Fang Bo , Huang Xinyu
Published: August 2020

The influence maximization problem (IMP) in complex networks is to address finding a set of key nodes that play vital roles in the information diffusion process, and when these nodes are employed as ”seed nodes”, the diffusion effect is maximized. First, this paper presents a refined network centrality measure, a refined shell (RS) index for node ranking, and then proposes an algorithm for identifying key node sets, namely the reject neighbors algorithm (RNA), which consists of two main sequential parts, i.e., node ranking and node selection. The RNA refuses to select multiple-order neighbors of the seed nodes, scatters the selected nodes from each other, and results in the maximum influence of the identified node set on the whole network. Experimental results on real-world network datasets show that the key node set identified by the RNA exhibits significant propagation capability.
Schedule Execution for Two-Machine Job-Shop to Minimize Makespan with Uncertain Processing Times
Authors: Sotskov Yuri N. , Matsveichuk Natalja M. , Hatsura Vadzim D.
Published: August 2020

This study addresses a two-machine job-shop scheduling problem with fixed lower and upper bounds on the job processing times. An exact value of the job duration remains unknown until completing the job. The objective is to minimize a schedule length (makespan). It is investigated how to best execute a schedule, if the job processing time may be equal to any real number from the given (closed) interval. Scheduling decisions consist of the off-line phase and the on-line phase of scheduling. Using the fixed lower and upper bounds on the job processing times available at the off-line phase, a scheduler may determine a minimal dominant set of schedules (minimal DS), which is based on the proven sufficient conditions for a schedule dominance. The DS optimally covers all possible realizations of the uncertain (interval) processing times, i.e., for each feasible scenario, there exists at least one optimal schedule in the minimal DS. The DS enables a scheduler to make the on-line scheduling decision, if a local information on completing some jobs becomes known. The stability approach enables a scheduler to choose optimal schedules for most feasible scenarios. The on-line scheduling algorithms have been developed with the asymptotic complexity O(n2) for n given jobs. The computational experiment shows the effectiveness of these algorithms.
Eigenloss: Combined PCA-Based Loss Function for Polyp Segmentation
Authors: Sánchez-Peralta Luisa F. , Picón Artzai , Antequera-Barroso Juan Antonio , Ortega-Morán Juan Francisco , Sánchez-Margallo Francisco M. , Pagador J. Blas
Published: August 2020

Colorectal cancer is one of the leading cancer death causes worldwide, but its early diagnosis highly improves the survival rates. The success of deep learning has also benefited this clinical field. When training a deep learning model, it is optimized based on the selected loss function. In this work, we consider two networks (U-Net and LinkNet) and two backbones (VGG-16 and Densnet121). We analyzed the influence of seven loss functions and used a principal component analysis (PCA) to determine whether the PCA-based decomposition allows for the defining of the coefficients of a non-redundant primal loss function that can outperform the individual loss functions and different linear combinations. The eigenloss is defined as a linear combination of the individual losses using the elements of the eigenvector as coefficients. Empirical results show that the proposed eigenloss improves the general performance of individual loss functions and outperforms other linear combinations when Linknet is used, showing potential for its application in polyp segmentation problems.
Thermal Hydraulics Analysis of the Distribution Zone in Small Modular Dual Fluid Reactor
Authors: Liu Chunyu , Li Xiaodong , Luo Run , Macian-Juan Rafael
Published: August 2020

The Small Modular Dual Fluid Reactor (SMDFR) is a novel molten salt reactor based on the dual fluid reactor concept, which employs molten salt as fuel and liquid lead/lead-bismuth eutectic (LBE) as coolant. A unique design of this reactor is the distribution zone, which locates under the core and joins the core region with the inlet pipes of molten salt and coolant. Since the distribution zone has a major influence on the heat removal capacity in the core region, the thermal hydraulics characteristics of the distribution zone have to be investigated. This paper focuses on the thermal hydraulics analysis of the distribution zone, which is conducted by the numerical simulation using COMSOL Multiphysics with the CFD (Computational Fluid Dynamics) module and the Heat Transfer module. The energy loss and heat exchange in the distribution zone are also quantitatively analyzed. The velocity and temperature distributions of both molten salt and coolant at the outlet of the distribution zone, as inlet of the core region, are produced. It can be observed that the outlet velocity profiles are proportional in magnitude to the inlet velocity ones with a similar shape. In addition, the results show that the heat transfer in the center region is enhanced due to the velocity distribution, which could compensate the power peak and flatten the temperature distribution for a higher power density.
Evaluating the Relative Vaccine Effectiveness of Adjuvanted Trivalent Influenza Vaccine Compared to High-Dose Trivalent and Other Egg-Based Influenza Vaccines among Older Adults in the US during the 2017–2018 Influenza Season
Authors: Pelton Stephen I. , Divino Victoria , Shah Drishti , Mould-Quevedo Joaquin , DeKoven Mitch , Krishnarajah Girishanthy , Postma Maarten J.
Published: August 2020

The influenza-related disease burden is highest among the elderly. We evaluated the relative vaccine effectiveness (rVE) of adjuvanted trivalent influenza vaccine (aTIV) compared to other egg-based influenza vaccines (high-dose trivalent (TIV-HD), quadrivalent (QIVe-SD), and standard-dose trivalent (TIVe-SD)) against influenza-related and cardio-respiratory events among subjects aged ≥65 years for the 2017–2018 influenza season. This retrospective cohort analysis used prescription claims, professional fee claims, and hospital charge master data. Influenza-related hospitalizations/ER visits and office visits and cardio-respiratory events were assessed post-vaccination. Inverse probability of treatment weighting (IPTW) and Poisson regression were used to evaluate the adjusted rVE of aTIV compared to other vaccines. In an economic analysis, annualized follow-up costs were compared between aTIV and TIV-HD. The study was composed of 234,313 aTIV, 1,269,855 TIV-HD, 212,287 QIVe-SD, and 106,491 TIVe-SD recipients. aTIV was more effective in reducing influenza-related office visits and other respiratory-related hospitalizations/ER visits compared to the other vaccines. For influenza-related hospitalizations/ER visits, aTIV was associated with a significantly higher rVE compared to QIVe-SD and TIVe-SD and was comparable to TIV-HD. aTIV was also associated with a significantly higher rVE compared to TIVe-SD against hospitalizations/ER visits related to pneumonia and asthma/COPD/bronchial events. aTIV and TIV-HD were associated with comparable annualized all-cause and influenza-related costs. Adjusted analyses demonstrated a significant benefit of aTIV against influenza- and respiratory-related events compared to the other egg-based vaccines.
Pengetahuan dengan Motivasi Pencegahan Stroke pada Penderita Hipertensi
Authors: Safitri Wahyuningsih , Agustin Wahyu Rima
Published: August 2020

Komplikasi pada hipertensi yang tidak terkontrol dapat menyebabkan stroke. Angka kejadian stroke saat ini menunjukkan peningkatan. Pengetahuan yang baik dapat meningkatkan motivasi penderita sehingga terhindar dari stroke. Desain penelitian dengan descriptive correlational. Upaya mengumpulkan sampel dengan proportionate stratified random sampling dan responden 171 orang. Data dianalisis  dengan spearman rank. Hasil penelitian adalah pengetahuan tinggi sebanyak 159 (93%). Motivasi pencegahan stroke dalam kategori kuat sebanyak 159 responden (93%). Kesimpulan penelitian adalah pengetahuan berhubungan dengan motivasi pencegahan stroke di Kelurahan Jebres Surakarta (p value 0,000). Adanya  pengetahuan yang tinggi disarankan kepada penderita hipertensi meningkatkan motivasi dalam pencegahan stroke.

Kata kunci      : pengetahuan, motivasi pencegahan stroke, hipertensi.
دراسة تحليلية مقارنة لمقياس الاتجاه الاجتماعي بين فرق الكشاف المتقدم في مديريات تربيات محافظة بغداد
Authors: Jasem Haider Abdul Hussein , Ismail Neda Nebhan
Published: August 2020

تجلت أهمية البحث من خلال مقياس للاتجاه النفسي نحو المشاركة في النشاطات الكشفية لفرق الكشاف المتقدم في مديريات تربيات محافظة بغداد اذ أن للاختبارات والمقاييس دور بارز في التشخيص والتصنيف ومتابعة التقدم ولتحقيق ذلك يتطلب وجود قادة كشافة يمتلكون مهارات قيادية خاصة يستطيعون من خلالها، وكانت أهداف البحث الكشاف المتقدم التخطيط مع طليعته لمشروع خدمة عامة وتنفيذ هذه الأهداف ولعدم وجود مقاييس يمكن تكشف نقاط القوة والضعف في المشاركة بالنشاطات الكشفية وقد أستخدم الباحث المنهج المسحي على عينة (176) من الكشافة من المدارس الإعدادي لتربيات بغداد لعينة التطبيق وتم تصميم استمارة استبيان تحتوي على عدة محاور كل محور يحتوي على عدة فقرات تضمنت جوانب عديدة وبعد عرضها على الخبراء وتم توزيع المقياس على أفراد عينة البحث أجريت عليها المعاملات العلمية وجمع النتائج توصل الباحثان إلى اسـتخلاص (خمس) محاور من خـلال التـحليـل العـاملي لمقياس الاتجاه الاجتماعي.
Selective preparation of tetrasubstituted fluoroalkenes by fluorine-directed oxetane ring-opening reactions
Authors: Fontenelle Clément Q , Thierry Thibault , Laporte Romain , Pfund Emmanuel , Lequeux Thierry
Published: August 2020

The selective ring-opening reaction of fluoroalkylidene-oxetanes was directed by the presence of the fluorine atom, enabling a two-step access to tetrasubstituted fluoroalkenes with excellent geometry control. Despite its small van der Waals radii electronic, rather than steric influences of the fluorine atom governed the ring-opening reaction with bromide ions, even in the presence of bulky substituents.
Application of Vendor Managed Inventory Cooperation Model to Encourage Distribution of Products in Ud. Sari Jaya
Authors: Munita Andary Asvaroza , Kholil Muhammad , Siwi Galih Raka , Suparno Adizty
Published: August 2020

UD. Sari Jaya is a home industry that produces cassava and other tubers into chips. Cassava chips are the main product because of their high level of consumer interest in the product compared to others. The Problems faced by UD. Sari Jaya is that they are unable to meet the market demand more effectively. In the process of providing the needs, UD. Sari Jaya often performs several deliveries to each Stall caused by the lack of product availability at Stall, causing demand to be unfulfilled. The number of Retailers to be served, the lack of information on needs is one of the obstacles in the process of inventory replenishment. Vendor Managed Inventory (VMI) is one of the Collaboration Model in the supply chain between producers and retailers where collaboration is expected to make arrangements regarding the number of lot sizes order as well as the frequency of deliveries to each Stall with a minimum total cost, by thus UD. Sari Jaya can have good control in the process of fulfilling the needs of this Cassava Chips.
Jesus and Ethnicity: A Theological Reflection on the Message of John 4:1-24.
Authors: Torsu Livingstone Yao , Brown Francis
Published: August 2020

The message of Jesus Christ is to save everyone irrespective of tribe, culture, geographical location, and language. His main purpose is to restore the human relationship with God. In view of that, the study employed an analytical approach to finding out how Jesus dealt with ethnicity in the propagation of the message of God (the Gospel) to deduce relevant messages across ethnic boundaries. As a result of this, the study revealed that Jesus did not rule out the role of culture in the propagation of the message. It is observed that culture is knowledge, language, values, and customs. Thus, the message demonstrates how Jesus dealt with the Samaritan woman. Jesus communicated to the woman in simple and understandable language. His respect and love for the woman at the well and her view as part of values by requesting water from her suggests that he did not do away with the essence of values and customs. Therefore, this study suggests that Christians do likewise in the quest to disseminate the message of God, instead of promoting ethnicity which will end up limiting the message to a particular group of people. This study revealed that the best way to effectively carry the message across is to achieve the goal of the great commission by engaging people in terms of cultural relativism rather than ethnocentrism
Relecture mécanologique de l’histoire des télescopes
Authors: Guy Thomas , Bontems Vincent
Published: August 2020

Cet article propose de retracer l’histoire des télescopes en adoptant le point de vue de la mécanologie génétique. Cette approche en histoire des techniques vise à dépasser les oppositions qui existent entre les écoles internalistes et externalistes en centrant l’analyse sur les processus d’évolution technique plutôt que sur l’objet ou le système technique. Moins sensible aux surdéterminations socioculturelles pesant sur les objets du quotidien et s’étendant sur plus de quatre siècles, l’histoire des télescopes nous est apparue comme un choix judicieux pour tester la pertinence de notre méthode. En analysant les processus de conception, ainsi que la compétition entre les différentes lignées de télescopes, nous espérons parvenir à une meilleure compréhension des processus d’évolution technique sous-tendant le développement de ces instruments.
S’appuyer sur le passé pour construire l’avenir : l’exemple du projet nationaliste écossais dans le domaine des énergies renouvelables offshore
Authors: Roche Sylvain
Published: August 2020

Outre sa souveraineté politique, l’Écosse cherche à conquérir son indépendance énergétique. Au cœur d’un projet qui se veut résolument écologique, les énergies renouvelables offshore sont devenues progressivement un synonyme de rayonnement politique, scientifique et médiatique, pour une nation qui a toujours placé les avancées technologiques au cœur de son histoire. Les énergies renouvelables s’intègrent en effet dans la mythologie des nationalistes écossais : un pays riche de ressources inépuisables, comme le vent, les vagues et les courants de marées. Après le pétrole, les énergies renouvelables représenteraient le deuxième conte merveilleux de l’Écosse. En quoi le développement des énergies renouvelables offshore peut-il se définir comme un projet émanant d’un discours d’affirmation nationale ?
Quality Control of Production Lightweight Ferrocement Plate Using Sustainable Materials
Authors: Jalawi Nada Mahdi Fawzi A.
Published: August 2020

This research is concerned with a new type of ferrocement characterized by its lower density and enhanced thermal insulation. Lightweight ferrocement plates have many advantages, low weight, low cost, thermal insulation, environmental conservation. This work contain two group experimental : first different of layer ferrocement, second different of ratio aggregate to cement. The experiments were made to determined the optimum proportion of cement and lightweight aggregate (recycle thermestone ). A low W/C ratio of 0.4 was used with super plasticizer conforming to ASTM 494 Type G. The compressive strength of the mortar mixes is 20-25 MPa. The work also involved the determination of thermal properties .Thermal conductivity value of this ferrocement plate is between (0.6-0.45)W/m.K.
Behavior of Strengthened RC Beams with CFRP Sheets under Combined Bending and Torsion
Authors: Said Abdul Muttalib I. , Al-Shemmari Qais H.
Published: August 2020

The experimental investigations were carried out to study the behavior of reinforced concrete beams strengthened by CFRP sheets under different loading conditions (pure bending, combined bending and torsion and pure torsion). The experimental work included testing twenty RC beams of the rectangular cross-section of dimensions of 160×240 mm and of 2600 mm length with an area of the ordinary reinforcement being kept constant for all beams. Two parameters were taken into consideration (Twisting to bending moment ratio (T/M) and CFRP strengthening pattern). The tested beams are divided into five groups. Each group consists of four beams; the first beam is without CFRP strengthening, the other three are strengthened with CFRP sheets of different arrangements (U-stirrups, U-stirrups and longitudinal CFRP sheets in the bottom and Full U- stirrups wrapping). Each beam is loaded to a different loading conditions (pure bending, T/M = 0.5, T/M = 1.0, T/M = 2.0 and pure torsion). The CFRP sheets were attached externally to the beam. Test results were analyzed based on the influence of CFRP on the ultimate load, vertical mid-span deflection and failure modes. In the experimental work, it was found that all strengthening patterns of CFRP sheets exhibited a significant increase in ultimate strength. This increase reached up to 78.9% for tested beams, when the beam strengthened in the form of full U- stirrups wrapping pattern for T/M = 0.5. In this study, it is observed that the use of external CFRP sheets attached to the tension sides of beams (U-stirrups and longitudinal CFRP in the bottom) could enhance the ultimate load capacity by 32.7% over the capacity of the unstrengthen control beam for T/M = 1.0.
Numerical Investigations on Behavior of Strengthened RC Beams with CFRP under Combined Bending and Torsion
Authors: Said Abdul Muttalib I. , Al-Shemmari Qais H.
Published: August 2020

The numerical investigations were carried out to study the behavior of reinforced concrete beams strengthened by CFRP under different loading conditions (pure bending and combined bending and torsion). The numerical work included analysis of eight experimentally tested beams of rectangular cross-section dimensions of (160×240) mm and (2600) mm length keeping the area of the ordinary reinforcement constant for all beams. The following parameters were taken into consideration, twisting to bending moment ratio (T/M) and CFRP strengthening arrangement. The analyzed beams are divided into four groups. Each group consists of two beams; the first beam is without CFRP strengthening, the other beam is strengthened with CFRP. Each beam is loaded to a different loading conditions (pure bending, T/M=0.5, T/M=1.0, T/M=2.0). The CFRP sheets were attached externally to the beam. Analysis results were analyzed based on influence of CFRP on ultimate load and vertical mid-span deflection. According to the numerical study, it was found that all strengthening arrangements of CFRP sheets exhibited a significant increase in ultimate strength. The three-dimensional (3D) finite element model (FEM) utilized in present work is capable to simulate the behavior of externally strengthened reinforced concrete beams by CFRP. Full bond connections (no slip) are assumed between the CFRP sheets and surface of concrete. The comparison between the numerical and the experimental results declared the validity of the numerical analysis where the range of the (Pexp./PANSYS) ratio in ultimate load was from 0.847 to 1.157. The general behavior of the (FEM) shows good agreement with the test results from the experimentally tested beams.
Systematic Design of Short-Span Segmental Beams Reinforced by CFRP Plates
Authors: Abdulhameed Ali , Said Abdul Muttalib I.
Published: August 2020

The main objective of this study is to introduce a systematic design procedure for short-span segmental beams following a sophisticated ACI 440.2R-17 design procedure. The general aspects of innovative short-span segmental beams are easy to fabricate, economical and rapidly placed in pre-specified positions. Short-span segmental beams fabricated from individual precast plain-concrete blocks and CFRP plates. Recently, experimental tests performed on short-span segmental beams, by the authors, investigated CFRP plate-bonding, CFRP plate cross-sectional area, the thickness of plate-bonding epoxy resin, surface-to-surface condition of concrete blocks, as well as, interface condition of the bonding surface. The experimental program comprises testing of eight short-span segmental beams with an overall length, width and depth of (900, 200 and 80) mm, respectively, divided into four groups and subjected to 4-point bending test. The investigated test specimens exhibited considerable flexural strength under loading. Systematic designing of short-span segmental beams (SSSB) is presented in the current research. The advanced design method of SSSB with 1-layer of CFRP plates revealed an overestimation in ultimate strength by (73 and 15) % from the tested SSSB consisted of 1-layer CFRP/cementitious adhesive and SSSB has 1-layer CFRP/epoxy adhesive; respectively. Whereas the design method of SSSB with 2-layer of CFRP plates resulted in overestimation in strength by (71 and 45) % from the physical models of SSSB consisted of 2-layer CFRP/cementitious adhesive and SSSB has 2-layer CFRP /epoxy adhesive; respectively.
Dry Density Based on Soil Index Properties by Using Expert System
Authors: Albusoda Bushra S. , Al-Hamdani Dhurgham A. , Abbas Mohammed F.
Published: August 2020

Dry density modeling is a valuable issue. Artificial neural networks (ANNs) have been used in many problems in geotechnical engineering and have demonstrated great success. In this paper, the ANN model is proposed to predict the dry density of the soil. The developed model is managed by the Matlab Neural Network Interface (R2016a). To create the ANN model, liquid limit, plastic limit, plasticity index, moisture content, specific gravity, finer accuracy than sieve 200, total suspended solids, organic and SO3 were selected and used as input parameters. There are (9, 6,5 and 3) nodes, (10) nodes and (1) node used for input, hidden layers and output layers, respectively. The value of dry density obtained from three sources was sympathetic. The first source is the experimental results of 99 soil samples conducted in Al-Najaf Institution laboratory for this study. The second source was to propose the expected dry density using multiple linear regression analysis (MLRA) on the samples used in the first source; The results show, that the prediction of the use of ANNs was closely consistent with the experimental data. Correlation coefficient (R2) and mean square error (MSE) were 0.97368 and 3.19474 10-3, respectively. The observed results of the proposed system were very comparable with those obtained from empirical analysis and the prediction obtained from multiple linear regression analysis, where the advanced ANN approach is applicable.
Compressive Strength Performance of Reactive Powder Concrete Using Different Types of Materials as a Partial Replacement of Fine Aggregate
Authors: Mohammed Shatha D. , Awad Hadeel K. , Aboud Rawaa K.
Published: August 2020

Reactive Powder Concrete (RPC) can be incorporate as a one of the most important and progressive concrete technology. It is a special type of ultra-high strength concrete (UHSC) that’s exclude the coarse aggregate from its constitutive materials. In this research an experimental study had been carried out to investigate the effect of using three types of materials (porcelain aggregate) and others sustainable materials (glass waste and granular activated carbon) as a partial replacement of fine aggregate. Four percentages had considered (0, 10, 15 and 20) % to achieve better understanding for the influence of these materials upon the compressive strength of RPC. Four curing ages had included in this study, these are; 7, 28, 60 and 90 days. The outcomes of the experimental works improved that using porcelain aggregate as a partial replacement had an advanced effect on the compressive strength for all the adopted percentages and for all the studied curing ages. The maximum modification that’s obtained in case of porcelain aggregate was (24.14) % at age (90) days for 20% replacement. Using glass waste caused an increase in the overall values of the compressive strength for all the adopted replacements with less efficient than porcelain to reached (20.69) % at age (90) days for 20% replacement. Regarding the granular activated carbon, only (10%) replacement had a positive influence on the compressive strength to reached (13.16) % while the others caused a reduction in the compressive strength reached to (29.13)% for 20% replacement.
Estimation of Bearing Capacity Dropping Due to Cavities from Gypseous Soils Melting
Authors: Al-Obaidi Ahmed , Najim Reem S.
Published: August 2020

The presence of gypsum in the soil will cause problems if the source of freshwater is available and permeable soil permitting significant movement of water is to take place. The solubility of gypsum by excess water from irrigation or localized leak into the gypseous soil may cause cavity formation. In this research, a model was developed for governing the mass-transport to assess the variation of gypsum content of the soil during dissolution. A general three-dimensional finite element program (PLAXIS tunnel) was selected for the numerical analysis method to generate the solution. Parameters that affect the bearing capacity of a square footing represented by the gypsum content, the cavity volume, and the location of the cavity which represent by three offset distances from the footing center to the cavity center (x, y, and z), where (X) represents the horizontal distance, (Y) represents the vertical (depth) distance, and (Z) represents the diagonal distance. The main results show that the cavity location found to be the most parameter that affects the bearing capacity ratio (BCR). The minimum values are found when the cavity locates at the center of the footing base, and the lowest one (0.211) when the gypsum dissolved equal to 40%, also there is no effect of the cavity location when the ratio of (X/B) and (Z/B) exceed (3.0) for any depth and when the gypsum dissolved less than 10%. For high gypsum dissolution (more than 30%), the dimensionless ratios (X/B), (Z/B), and (Y/B) of the cavity must be more than 5.0.
Compressive Strength and Shrinkage Behavior of Concrete Produced from Portland Limestone Cement with Water Absorption Polymer Balls
Authors: Al-Mulla Ikram F. Ahmed , Al-Rihimy Ammar S. , Al-Shamaa Mushriq F.
Published: August 2020

From the sustainability point of view a combination of using water absorption polymer balls in concrete mix produce from Portland limestone cement (IL) is worth to be perceived. Compressive strength and drying shrinkage behavior for the mixes of concrete prepared by Ordinary Portland Cement (O.P.C) and Portland limestone cement (IL) were investigated in this research. Water absorbent polymer balls (WAPB) are innovative module in producing building materials due to the internal curing which eliminates autogenous shrinkage, enhances the strength at early age, improve the durability, give higher compressive strength at early age, and reduce the effect of insufficient external curing. Polymer balls (WAPB) had been used in the mixes of this research to provide good progress in compressive strength with time. Water absorption polymer balls have the ability to absorb water and after usage in concrete it will spill it out and shrink leaving voids of their own diameter before shrinking that lead to provide internal curing. The required quantity of water for the mixes were reduced due to the addition of water from the absorption polymers. Mixes produced from Portland limestone cement in this research show drying shrinkage results and compressive strength results lower than mixes made from ordinary Portland cement.
A multicenter approach to evaluate omalizumab effectiveness in Samter’s triad
Authors: Cameli Paolo , D'Alessandro Miriana , Bergantini Laura , Silvestri Elena , Romaldi Arianna , Emmi Giacomo , Parronchi Paola , Bargagli Elena
Published: August 2020

Omalizumab proved to be very effective in improving control of severe atopic asthma. Many small-sized studies suggested a potential role for omalizumab in the management of aspirin-exacerbated respiratory disease. The aim of this study is to describe the effectiveness of omalizumab in a multicentre group of patients with Samter’s triad. We retrospectively enrolled eight patients (5 females) with Samter’s triad who underwent at least one year of omalizumab therapy. Clinical data, functional parameters and questionnaires for asthma and nasal polyposis control were collected at baseline and follow-up.  We observed a significant reduction of moderate-to-severe asthma exacerbations, together with an increase of FEV1 and a reduction of steroids intake. An improvement in asthma control and nasal symptoms was also reported. This multicenter study confirms the effectiveness of omalizumab in patients affected by Samter’s triad. Omalizumab may represent a potential therapeutic option for the management of this disease.
Use of a male antioxidant nutraceutical is associated with superior live birth rates during IVF treatment
Authors: Tremellen Kelton , Woodman Richard , Hill Amy , Shehadeh Helana , Lane Michelle , Zander-Fox Deirdre
Published: August 2020

Oxidative stress is prevalent among infertile men and is a significant cause of sperm DNA damage. Since sperm DNA damage may reduce embryo quality and increase miscarriage rates, it is possible that untreated sperm oxidative stress may impair in vitro fertilization (IVF) live birth rates. Given that the antioxidant Menevit is reported to reduce sperm DNA damage, it was hypothesized that men's consumption of this supplement may alter IVF outcomes. Therefore, a retrospective cohort study was conducted analyzing outcomes for couples undergoing their first fresh embryo transfer. Men were classified as controls if they were taking no supplements, health conscious controls if taking “general health” supplements, or Menevit users. Men with karyotype abnormalities, or cycles using donated, frozen and surgically extracted sperm were excluded. Among the final study cohort of 657 men, live birth rates were significantly higher in Menevit users than controls (multivariate adjusted odds ratio [OR]: 1.57, 95% confidence interval [CI]: 1.01–2.45, P = 0.046), but not between controls taking no supplements and those using general health supplements, thereby suggesting that potential health conscious behavior in supplement users is unlikely responsible for the superior outcomes in Menevit users. Interestingly, in a post hoc sensitivity analysis, live birth rates among Menevit users were statistically superior to controls for lean men (OR: 2.73, 95% CI: 1.18–6.28; P = 0.019), not their overweight/obese counterparts (OR: 1.29, 95% CI: 0.75–2.22, P = 0.37). The results of this large cohort study therefore support a positive association between men's use of the Menevit antioxidant during IVF treatment and live birth rates, especially in lean individuals.
Foundation Doctors’ Exposure to Interventional Radiology in Two Large Teaching Hospitals in the United Kingdom
Authors: Alsafi Zaid , Ramachandran Sanjeev , Bhrugubanda Vamsee , Graham Alison , Alsafi Ali
Published: August 2020

Background: Significant efforts have been made to improve medical students' exposure to interventional radiology (IR). Foundation doctors in the UK, however, are a neglected group, with little being done engage these doctors who are at a crucial juncture in their training. Objectives: The objective of the study is to assess Foundation Year 1 (FY1) doctors' understanding of and exposure to IR. Methods: FY1s from two teaching hospitals in the UK at the end of their first year of Foundation training were invited to take part in an 18-question survey, including 14 single-best-answer (SBA) questions. The questions examined knowledge of IR and other specialties. The SBAs were scored out 14 and the Student's t-test was used to compare IR and non-IR scores. Results: Questionnaires were given to 72 FY1 doctors and 52 (72.2%) were completed. The median score was 9/14 (64.3%) [4.5/14–12/14]. Questions relating to coronary intervention and neurosurgery scored best (96.2% and 94.3%, respectively). The mean score for IR-related questions was significantly lower than that for non-IR questions (51.5% vs. 81.1%, respectively, P < 0.0001). Participants who referred patients to IR at least once per month scored higher than those who rarely referred (60.5% vs. 47.2%, respectively, P < 0.0084). Nearly 83.0% of participants expressed a desire to gain more exposure to IR. Conclusion: Although Foundation doctors have some understanding of IR, reflecting some exposure to the specialty, this remains deficient when compared with their knowledge of other specialties. This may be improved by the introduction of IR specific teaching during the Foundation program.
THE CHARACTER ANALYSIS OF THE MAIN CHARACTERS AND THE SUBORDINATE CHARACTERS IN DILAN 1990 MOVIE AS A STUDY OF LITERARY PSYCHOLOGY
Authors: Meiva Eka Sri Sulistyawati  , Chodidjah  , Adelia Taufinata
Published: August 2020

Cinema and Literature are two distinct but equally extraordinary works of art. Though both these arts have certain connections and differences, both have a similarity of taking its readers/audience to a different world. The purpose of this study is to analyze the characters of the main and subordinate characters through a review of a study of literary psychology. The data source in this study uses a film entitled Dilan 1990 which is created by Pidi Baiq. The research methodology used in this study is descriptive qualitative using the library method and also structural assessment in making work designs. In connection with the results of the analysis of this study it can be recommended that this analysis be suitable to be presented to us since it has many positive values to give us a lesson. Like loving each other, being honest, and achieving the highest achievement.

Key Words: cinema, film, literature, literary psychology, library method
FRASA KETERANGAN: WUJUD, JENIS, DAN JANGKAUAN SEMANTIS DALAM TEKS MEMOAR MENJADI PEGIAT LITERASI
Authors: Laily Rahmatika  , Agus Budi Wahyudi
Published: August 2020

Memoar is a record of the journey of individual life story after being written to be a very memoriable creation.  This research is about adverbial phrase (FKet.) in memoar teks. The objectives of the research (1) Determine the construction form of FKet. in Memoar Menjadi Pegiat Literasi text. (2) Describe the types of FKet.  Memoar Menjadi Pegiat Literasi text. (3) Formulate the semantic range (homonymy system) of  FKet in Memoar Menjadi Pegiat Literasi text. This type of research is a qualitative description. Data is in the form of sentences containing FKet. derived from written data sources. Data collection techniques used refer to the technical read and note. The analysis uses the split method and the referential equivalent The Results: (1) FKet construction form in the form of FKet construction of exocentric place, FKet construction form in the form of exocentric and apositive. 2) FKet type in the form of place, time, method, accompaniment, and cause. (3) semantic range (homonymy system) in Memoar Menjadi Pegiat Literasi text based on time and place.

Abstrak

Memoar sebagai catatan perjalanan kisah hidup seseorang, setelah ditulis menjadi ciptaan yang sangat berkesan. Penelitian ini mengenai frasa keterangan (FKet.) dalam teks Memoar. Tujuan penelitian (1) Menentukan wujud kontruksi FKet. dalam teks Memoar Menjadi Pegiat Literasi. (2) Mendeskripsikan jenis FKet. dalam teks Memoar Menjadi Pegiat Literasi. (3) Memformulasikan jangkauan semantis (sistem homonimi) FKet. dalam teks Memoar Menjadi Pegiat Literasi. Jenis penelitian deskripsi kualitatif. Data berupa kalimat yang mengandung FKet. yang berasal dari sumber data tertulis. Teknik pengumpulan data digunakan teknis simak dan catat. Metode analisis yang digunakan yaitu metode agih dan padan referensial. Hasil penelitian (1) Wujud kontruksi FKet. dalam teks memoar berupa frasa eksosentrik dan frasa apositif. 2) Jenis FKet. berupa tempat, waktu, cara, penyerta, dan sebab. (3) Jangkuan semantis (sistem homonimi) FKet. dalam teks Memoar Menjadi Pegiat Literasi dapat diformulasikan berdasarkan waktu dan tempat.

Kata Kunci:  Wujud FKet., Jenis FKet., Jangkauan Semantis FKet., Teks Memoar
Dynamics between Digital Visibility through Social Media Marketing and Crowdfunding: Path to Succeed in Entrepreneurship
Authors: G P Girish , Ghosh Seeboli
Published: August 2020

Digital visibility through social media marketing has played a colossal role in the realm of entrepreneurship and fund-raising. Strong positive dynamics between social media marketing and crowd-funding has the impending to decipher demand-supply gap of fundraising at the pre-seed stage. In this study, we explore the relationship between usage of social media and awareness of crowd-funding as a viable option for raising pre-seed capital in an emerging market of India which has witnessed the exponential growth of start-up companies and entrepreneurship in the past few years. The results of the study suggest that awareness of different options of crowdfunding for raising pre-seed capital is strongly correlated with the effective usage of social media platforms by the organizations. From an organization’s perspective, it has been found that effective use of Social Media platforms increases with the duration involved in social media platforms. The results of the study give a perspective for all entrepreneurs, fundraisers, and start-up companies that how digital visibility through social media marketing can unravel the problem of crowd-funding. With a growing trend of today’s youth using social media marketing worldwide, the strong dynamics between crowd-funding and social media marketing is expected to breed exponentially in terms of their contribution to the economy, wealth generation, and job creation.
Lymph node biopsy in children: Indications and etiology
Authors: Aftab Maryam , Hasan Maria , Samad Lubna
Published: August 2020

Background: Peripheral lymphadenopathy manifests in a variety of benign and malignant conditions and is often challenging to distinguish pathologic from non-pathologic etiology based on clinical presentation alone.  Therefore, lymph node biopsy is often required as an essential part of management. This study aimed to determine the causes of peripheral lymphadenopathy in children needing excision biopsy in our setting and establish a correlation with clinical features and laboratory findings.
Methods: A retrospective review of medical records of children aged 0-14 years undergoing lymph node biopsy at our institution, between January 2015 and June 2018, was conducted. Demographic, microbio­logical, and histopathological findings were reviewed.
Results: A total of 69 patients underwent lymph node biopsy, the majority of whom were male (n=40, 58%), with a mean age of 7.9 years.  The histopathological findings confirmed lymphoma (n=27), tubercu­losis (n=24), benign reactive changes (n=14), and Langerhan Cell Histiocytosis (n=4).  Cervical lymph nodes were most frequently involved (n=64).  Associated symptoms included fever (n= 27), weight loss (n=2) and cough (n=7). Only one patient developed a postoperative complication (wound infection). A clini­cal diagnosis of tuberculosis (TB) had been presumed in 19 patients, but only 2 (11%) were confirmed to have TB, whereas10 were found to have histopathological findings of lymphoma.
Conclusion: Excisional biopsy is useful in the management of children with lymphadenopathy, allowing treatment to be initiated based on a histopathological diagnosis.
Peningkatan Keterampilan Mahasiswa/i Melalui Penggunaan Virtual Laboratory pada Matakuliah Sainsmatika Semester 2 PIAUD di STAI Auliaurrasyidin Tembilahan
Authors: Liana Dina , Mukhtar AH Nurkamelia
Published: August 2020

The purpose of the research is to explore the improvement of the students’ skills over Virtual Library on Sainsmatika at PIAUD Semester 2 students, STAI Auliaurrasyidin. Type of the research used is action research. It is a learning done in the classroom to improve learning process in the class. Data collection technique used in the research was test, observations, and documentation. The collected data was then analyzed descriptively. The analyzed data were data of students’ learning achievement and students’ scientific works. Based on the data, it can be stated that virtual library practices can improve the skills of the PIAUD, class A, semester 2 students on Scientific Studies. Material used was about digestive and respiratory system of fish, toads, lizards, birds, and mice.
Responsiveness of the Revised Low Vision Independence Measure (LVIM–R)
Authors: Smith Theresa M. , Hong Ickpyo , Reistetter Timothy A.
Published: August 2020

Importance: The Low Vision Independence Measure (LVIM) was designed to measure the effectiveness of occupational therapy to improve visual ability in low vision rehabilitation.

Objective: To validate the Revised LVIM (LVIM–R) as an outcome measure by determining its sensitivity to visual ability changes after occupational therapy.

Design: In this observational study, LVIM–R scores were collected before and after customary low vision intervention.

Setting: Home health agency or outpatient facility.

Participants: Forty-four participants with a mean age of 80.2 yr (standard deviation = 11.2) and an average length of visual impairment of 6.2 yr. Twenty-three participants (52.3%) were treated in an outpatient setting, and 21 (47.7%) were treated in the home. The majority of participants were non-Hispanic White (92.8%) and had macular degeneration (54.5%).

Intervention: Customary low vision intervention by occupational therapists.

Outcomes and Measures: LVIM–R scores were collected before and after intervention, and participants’ pre- and posttest scores were anchored into Rasch-calibrated item parameters.

Results: Paired t tests demonstrated significant increases in person measures with large effect sizes for both constructs of the LVIM–R, the visual field or scotoma (t[43] = 6.46, p < .0001; Cohen’s d = 0.92) and visual acuity (t[43] = 9.08, p < .0001; Cohen’s d = 1.14) constructs.

Conclusions and Relevance: The LVIM–R is sensitive to changes in visual ability in clients who have good rehabilitation potential and can be used to examine the effectiveness of occupational therapy for low vision.

What This Article Adds: The LVIM–R is useful for measuring occupational therapy outcomes in low vision rehabilitation in the home or in outpatient settings.
RESEARCH ON INTEGRATED STATIC AND DYNAMIC GEOMETRIC CALIBRATION TECHNOLOGY FOR OPTICAL SURVEYING AND MAPPING SATELLITES
Authors: Wang Y. , Hu X. , Xie G.
Published: August 2020

Abstract. As the satellite latitude and camera temperature changes, temperature distortion in orbit makes the optical axis of the star sensor drifts slowly in the satellite body coordinate system, and the attitude measurement system contains low frequency errors that cannot be ignored. Low frequency errors are systematic in short periods, and occasional in long periods, which cause an error of a few minutes, so as to greatly reduce the positioning accuracy without control points of satellite photography. Traditional geometric calibration can only eliminate system errors caused by changes in optics in sensor platform and mechanical structures and etc., and cannot reduce the effect of low-frequency errors. An integrated static and dynamic geometric calibration method based on optical surveying and mapping satellites is proposed in this paper. The attitude system error and low frequency error are effectively detected by establishing a correction model of low frequency errors and analyzing the effective calibration process of traditional on-orbit calibration and dynamic calibration. Finally, relevant experiments are performed with image from satellite TIANHUI-1 in seven test fields, which verifies that this low-frequency error compensation method is correct and effective.