bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimalization of upja revenue (business provider services) rice cultivation using linear programing analysis in seputih raman district, central Lampung
Authors: Asmara S , Rahmawati W , Suharyatun S , Wibowo SA 
Published: November 2019

Abstract
Rejo Asri Gapoktan is a farmer group located in Seputih Raman District, Central Lampung Regency and has an Alsintan Service Provider (UPJA) Business for Rice cultivation. In carrying out its activities UPJA Gapoktan has several tools and machines related to the management of rice cultivation, including: tractors, hand tractors, transplants, plant maintenance tools (hand sprayers and power weeder) and combine harvester. The problem faced by Gapoktan is the management of tool management, especially in maximizing revenue gains from managing these tools and machines. During this time Gapoktan has not been able to obtain an ideal profit, only in the break-even stage between business income and expenditure. Constraints on the extent of claim for each tool, equipment rental time, tool working hours, number of operators, operational costs, and rejuvenation costs for each tool still cannot be harmonized, so that it has not been able to achieve maximum profit. One effort to provide a solution to the problem in this study is the use of the Simplex Method which is one of the analysis of Linear Programing which aims to maximize the benefits of UPJA. The research method used is a quantitative method using Linear Programing analysis method using QM-For Windows V helper software. 5. The results showed that Linear Function for Z max objective function = 4.305.000X1 + 3.255.000X2 + 3.258.500X3 + 16,800,000X4, where X1, X2, X3, and X4 are Tractors, Tractor Hand, Transplanters, and Combine Harvester respectively. And the equation of the constraint function P1 (Land Area) = 60X1 + 120X2 + 56X3 + 120X4 < = 9408, P2 (Rental Time) = 240X1 + 240X2 + 240X3 + 240X4 < = 1448, P3 (Tool Hours) = 56X1 + 120X2 + 56X3 + 120X4 < = 1448, P4 (Number of Operators) = X1 + 2X2 + 3X3 + 4X4 < = 10, P5 (Operating Costs) = 290000X1 + 290000X2 + 835000X3 + 800000X4 < = 38545000, P6 (Equipment Rejuvenation Costs) = 123000X1 + 93000X2 + 199500X3 + 240000X4 < = 11836500. Conclusion, after optimization, solutions of solutions X1, X2, X3, and X4 are 4.71, 0, 0, and 1.32, the total overall profit obtained by the Gapoktan Rejo Asri from the UPJA is Rp. 42,494,670., - for one planting season (MT) and for the Cropping Index in Seputih Raman Sub-district, 2 is made in one year is Rp. 84,989,340, - assuming profitability is in accordance with the objective function and the same constraint function.
Design of powertrain and steering system for six wheels agricultural transporter
Authors: Desrial  , Setiawan RPA , Sutejo A , Edris IM , Fauri MNA , Faris RA 
Published: November 2019

Abstract
Transportation activity of agriculture’s production inputs and products from farm to processing house or storage house is generally carried out on poor road condition. Therefore, a special vehicle that can transport the products and able to pass agricultural farm easily is needed. The objective of this research was to design the powertrain and turning system of six wheels agricultural transporter. The design criteria of this vehicle was as follow: load capacity 750 kg and vehicle’s dimension fits to road class III criteria. The main components of powertrain system and turning mechanism were chassis, engine, gearbox, chain, sprocket, shaft, disc brake and tire wheels. The method of this research followed the common procedure of machine design process and continued to manufacturing and testing. The performance test showed that maximum forward speed without carrying load was 7.8 kmh−1 and with maximum load was 6.6 kmh−1. The smallest 180° turning radius was 3.5 m at engine speed of 3500 rpm which occurred when vehicle without carrying load.
Evaluation and measurement of indoor air quality in the preschool building
Authors: Rahman M. A. A. , Awang M. , Syafiq Syazwan Mustafa M , Yusop Fatimah , Aini Mohd Sari Kamarul , Musa M.K. , Arif Rosli Mohd , Ahmad Faridahanim , Hamidon Nuramidah 
Published: November 2019

AbstractUnder the principle that a suitable temperature and air quality are key to guarantee optimal conditions of learning and growth to students, this study has evaluated the comfort of the classrooms from the data extracted after analyzing the temperatures, the interior of each building, as well as the relative humidity of the classroom environment. In addition, to measure the quality of the indoor air, six chemical contaminants of Carbon Dioxide (CO2), Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Formaldehyde (HCHO), Volatile Organic Compound (VOC) and Particulate Matter (PM) in the classroom were measured. The results indicate that the physical parameters of each building were in good condition. Meanwhile, on the chemical contaminants, the measurement shows that the concentration of CO2, PM and VOC for most buildings exceeds the acceptable exposure limits. In the end, the recommendations for a good quality of the indoor environment in the classroom have been suggested through an emphasis on good design, construction and renovation of buildings as well as continuous maintenance practices.
Addressing GHG emissions from land transport in a developing country
Authors: Muhammad Saifuddin M R , Wan Asma Diana W R , Karim M R 
Published: November 2019

Abstract
The number of motor vehicles in Malaysia is growing at a significant rate, from around 15 million in 2005 to around 25 million in 2014. Based on the National GHG Inventory as reported to UNFCC, as a whole the transport sector has consistently remained the second largest GHG emitting sector in the country, accounting for 20% of the country’s total GHG emissions in 2014 of which about 18% comes from road transportation. In this paper, a possible approach in addressing the GHG emissions from the land transport sector is presented. The avoid-shift-improve strategy is employed to determine the possible measures to deal with mitigating the GHG emissions. Computation of GHG emissions for 2014 revealed that car is the vehicle with the biggest contribution, due to its large numbers and also VKT. Motorcycles, on the other hand, have relatively lower GHG contribution despite its huge numbers, while goods vehicle have significant GHG contribution despite its small number of vehicles. Public transport (both rail and bus) can significantly reduce GHG emission for each passenger-kilometer compared to other alternatives. Opting for smaller vehicle can also reduce GHG emissions. Another potential solution towards lower GHG emission is adoption of electric mobility and alternative fuel.
Operational factors of new flux cored wires of the Fe–C–Si–Mn–Cr–Ni–Mo system for surfacing of protective plates of shearer cutting drums
Authors: Kozyrev N A , Usoltsev A A , Kryukov R E , Gusev A I , Osetkovskiy I V 
Published: November 2019

Abstract
Evaluation of the joint effect of the chemical composition of flux cored wires on the wear and hardness of the deposited layer was carried out using mathematical-statistical methods, allowing the influence of the chemical composition of the flux cored wires on the performance of the weld layer of the mining equipment to be revealed. According to the results of the multifactor correlation analysis, the dependences of the hardness of the deposited layer and its wear resistance on the mass fraction of elements included in the flux cored wires composition of the Fe-C-Si-Mn-Cr-Ni-Mo system were determined. The obtained dependences are used to predict the hardness of the deposited layer and its wear resistance when the chemical composition of the weld metal is changed. New, protected by patents of the Russian Federation, flux cored wires of the system Fe-C-Si-Mn-Cr-Ni-Mo for surfacing the mining equipment were developed.
Development of new flux cored wires based on the tungsten oxide for improvement of drill bits wear resistance
Authors: Goryushkin V F , Bendre Yu V , Kozyrev N A , Kryukov R E , Shurupov V M 
Published: November 2019

Abstract
A new flux cored wire was developed for wear-resistant surfacing of machine parts in the mining and metallurgical industry, in which tungsten oxide WO3 and substances containing reducing agents: carbon and silicon are used as fillers.
Equivalent structure of a double-fed induction motor with a change in frequency of additional voltage for electric drive systems of mine winders
Authors: Ostrovlyanchik V Yu , Popolzin I Yu 
Published: November 2019

Abstract
Using a double-fed machine (DFM) circuit is a promising means of upgrading asynchronous electric drives in mine winders. However, the control range of the DFM speed is limited by an excessive drop in the critical torque and decrease in the rigidity of the mechanical characteristics at a speed reduction. Usage of synchronous mode of DFM operation for high-powered winders is fraught with considerable difficulties, in particular, with the instability of machine operation in this mode. The paper proposes a method for determining and evaluating the effect of the corrective action on the frequency of the rotor additional voltage on the critical torque and the rigidity of the DFM mechanical characteristics; the equivalent structure of a double-fed induction motor with a change in the of the additional voltage frequency on the rotor additional voltage and the results of experimental studies suggesting the possibility and necessity of implementing the method for using the DFM in electric drives of winders are given.
A study of the system “thyristor exciter - synchronous motor of a pump unit” in the conditions of a deep voltage drop
Authors: Kipervasser M V , Laktionov S A , Davydov S D , Gulamov Sh R 
Published: November 2019

Abstract
A mathematical model of the system “synchronous motor of a pump unit - thyristor exciter” was developed. The operation of the system model was investigated in the MatLab environment. The situation of a deep voltage drop in the power supply network was investigated. Graphs of changes in the currents of the stator and rotor windings during a voltage drop in the supply network were obtained and their analysis was performed.
Experimental and game-theoretic analysis of electricity markets
Authors: Petrov I V , Vartanov S A 
Published: November 2019

Abstract
There is a wide range of game-theoretic tools for electricity market analysis. An experiment is naturally formulated for any game-theoretic model verifying its validity or allowing the weak points of the theory, which cannot be realized in practice, to be identified. This paper discusses the applicability of the method of economic experiments for the electricity markets analysis. Despite the growing popularity of economic experiment as a method of cognition, not all branches of economic knowledge equally use the experimental approach. So, the experiments are most in demand in the theory of consumer behavior, neuroeconomics and theory of auctions. The experimental results of auction theory can significantly enrich studies of economics of the electric power industry. In addition, being introduced as a business game in the process of training students – the prospective top-level managers of the fuel and energy complex, economic experiments will also help to fulfill an educational function, as evidenced by the experience of their performance by the authors at the Financial University under the Government of the Russian Federation.
Magnetic proximity in a van der Waals heterostructure of magnetic insulator and graphene
Authors: Karpiak Bogdan , Cummings Aron W , Zollner Klaus , Vila Marc , Khokhriakov Dmitrii , Hoque Anamul Md , Dankert André , Svedlindh Peter , Fabian Jaroslav , Roche Stephan , Dash Saroj P 
Published: November 2019

Abstract
Engineering 2D material heterostructures by combining the best of different materials in one ultimate unit can offer a plethora of opportunities in condensed matter physics. Here, in the van der Waals heterostructures of the ferromagnetic insulator Cr2Ge2Te6 and graphene, our observations indicate an out-of-plane proximity-induced ferromagnetic exchange interaction in graphene. The perpendicular magnetic anisotropy of Cr2Ge2Te6 results in significant modification of the spin transport and precession in graphene, which can be ascribed to the proximity-induced exchange interaction. Furthermore, the observation of a larger lifetime for perpendicular spins in comparison to the in-plane counterpart suggests the creation of a proximity-induced anisotropic spin texture in graphene. Our experimental results and density functional theory calculations open up opportunities for the realization of proximity-induced magnetic interactions and spin filters in 2D material heterostructures and can form the basic building blocks for future spintronic and topological quantum devices.
Effects of radial extracorporeal shockwave therapy on spasticity of upper-limb agonist/antagonist muscles in patients affected by stroke: a randomized, single-blind clinical trial
Authors: Li Gaiyan , Yuan Wenchao , Liu Gongliang , Qiao Lei , Zhang Ying , Wang Yan , Wang Wei , Zhao Minglei , Wang Yanmin , Wang Jie 
Published: November 2019

Abstract

Background
the effects of radial extracorporeal shock wave therapy (rESWT) were assessed on agonist/antagonist muscles in stroke patients with elbow spasticity, the duration of effects and influence on function.

Methods
patients were randomly assigned into groups: control (A, n = 25), rESWT on agonist muscles (B, n = 27) and rESWT on antagonist muscles (C, n = 30) groups. Conventional physical therapy was given to three groups for 3 weeks, six times a week, and besides, rESWT was given at 4-day intervals for five consecutive treatments, B received rESWT on agonist muscles and C received rESWT on antagonist muscles. The primary outcome was Modified Ashworth Scale (MAS) scores. Modified Tardieu Scale, Visual Analogue Scale (VAS), Fugl-Meyer Assessment and swelling scale (SS) scores were secondary outcomes. Indicators were assessed at baseline, after five treatments and after 4 weeks follow-up.

Results
the rate of treatment was determined by changes in MAS, which was 16.0 (A), 70.4 (B) and 63.3% (C) after rESWT treatments, and was 24.0 (A), 74.1 (B) and 66.7% (C) after 4 weeks follow-up. Improvements were achieved for R1 (P &lt; 0.01), R2 (P &lt; 0.01) and VAS (P &lt; 0.01) after five rESWT interventions. At 4 weeks, significant improvements were achieved for R1 (P &lt; 0.01) and VAS (P &lt; 0.01).

Conclusions
rESWT is an effective therapy for spasticity after stroke, with lasting effects on both agonist and antagonist muscles after 4 weeks. rESWT relieved pain but had no effect on active function or swelling of the upper limbs.
Estimated societal costs of stroke in the UK based on a discrete event simulation
Authors: Patel Anita , Berdunov Vladislav , Quayyum Zahidul , King Derek , Knapp Martin , Wittenberg Raphael 
Published: November 2019

ABSTRACTBackgroundthere are around 100,000 new stroke cases and over a million people living with its consequences annually in the UK. This has large impacts on health and social care, unpaid carers and lost productivity. We aimed to estimate associated costs.Methodswe estimated 2014/2015 annual mean cost per person and aggregate UK cost of stroke for individuals aged ≥40 from a societal perspective. Health and social care costs in the first and subsequent years after stroke were estimated from discrete event simulation modelling, with probability of progression and length of receipt of different health and social care services obtained from routine registry and audit data. Unpaid care hours and lost productivity were obtained from trial data. UK unit costs were applied to estimate mean costs. Epidemiological estimates of stroke incidence and prevalence were then applied to estimate aggregate costs for the UK.Resultsmean cost of new-onset stroke is £45,409 (95% CI 42,054-48,763) in the first year after stroke and £24,778 (20,234–29,322) in subsequent years. Aggregate societal cost of stroke is £26 billion per year, including £8.6 billion for NHS and social care. The largest component of total cost was unpaid care (61%) and, given high survival, £20.6 billion related to ongoing care.Conclusionthe estimated aggregate cost of stroke substantially exceeds previous UK estimates. Since most of the cost is attributed to unpaid care, interventions aimed at rehabilitation and reducing new and recurrent stroke are likely to yield substantial benefits to carers and cost savings to society.
Estimated Number of Lifetime Ovulatory Years and Its Determinants in Relation to Levels of Circulating Inflammatory Biomarkers
Authors: Huang Tianyi , Shafrir Amy L , Eliassen A Heather , Rexrode Kathryn M , Tworoger Shelley S 
Published: November 2019

Abstract
Reproductive events, such as ovulation, trigger an inflammatory cascade. Few studies have examined their long-term influence on inflammatory profiles. We included 3,393 premenopausal and 3,915 postmenopausal women with intact ovaries/uterus from the Nurses’ Health studies (Nurses’ Health Study (1989–1990) and Nurses’ Health Study II (1996–1999)) in an analysis of the association between lifetime ovulatory years (LOY) and levels of inflammatory biomarkers. We estimated LOY as age at menopause (age at blood collection for premenopausal women) minus age at menarche, subtracting years of oral contraceptive (OC) use and 1 year per pregnancy. After adjustment for other inflammation-related factors (e.g., body mass index, exercise, diet), every 5-year increase in LOY was associated with lower C-reactive protein (CRP) levels in both premenopausal (difference = −11.5%, 95% confidence interval: −15.0, −8.0; P &lt; 0.0001) and postmenopausal (difference = −7.2%, 95% confidence interval: −10.0, −4.3; P &lt; 0.0001) women. Older age at menopause (P = 0.007), earlier menarche (P = 0.007), and shorter duration of OC use (P = 0.002) were associated with lower CRP levels in postmenopausal women, whereas duration of OC use was positively associated with CRP levels in premenopausal women (P &lt; 0.0001). LOY was modestly inversely associated with interleukin 6 in postmenopausal women (P = 0.03). Notably, the associations of CRP with LOY were similar in magnitude to associations with exercise and a healthy diet, though weaker than the association with body mass index. Although many reproductive events induce acute inflammation, increased LOY was associated with lower chronic systemic inflammation even after menopause.
Comparative transcriptome, physiological and biochemical analyses reveal response mechanism mediated by CBF4 and ICE2 in enhancing cold stress tolerance in Gossypium thurberi
Authors: Cai Xiaoyan , Magwanga Richard Odongo , Xu Yanchao , Zhou Zhongli , Wang Xingxing , Hou Yuqing , Wang Yuhong , Zhang Yuanming , Liu Fang , Wang Kunbo 
Published: November 2019

AbstractLow temperature is one of the key environmental stresses that impair plant growth and significantly restricts the productivity and spatial distribution of crop plants. Gossypium thurberi, a wild diploid cotton species, has adapted to a wide range of temperatures and exhibits a better tolerance to chilling stress. Here, we compared phenotypes and physiochemical changes in G. thurberi under cold stress and found this species indeed showed better cold tolerance. Therefore, to understand the molecular mechanisms of the cold tolerance in G. thurberi, we compared transcription changes in leaves of G. thurberi under cold stress by high-throughput transcriptome sequencing. In total, 35 617 unigenes were identified in the whole-genome transcription profile, and 4226 differentially expressed genes (DEGs) were discovered in the leaves upon cold treatment. Gene Ontology (GO) classification analyses showed that the majority of DEGs belonged to categories of signal transduction, transcription factors (TFs) and carbohydrate transport and metabolism. The expression of several cold-responsive genes such as ICE1, CBF4, RAP2-7 and abscisic acid (ABA) biosynthesis genes involved in different signalling pathways were induced after G. thurberi seedlings were exposed to cold stress. Furthermore, cold sensitivity was increased in CBF4 and ICE2 virus-induced gene silencing (VIGS) plants, and high level of malondialdehyde (MDA) showed that the CBF4 and ICE2 silenced plants were under oxidative stress compared to their wild types, which relatively had higher levels of antioxidant enzyme activity, as evident by high levels of proline and superoxide dismutase (SOD) content. In conclusion, our findings reveal a new regulatory network of cold stress response in G. thurberi and broaden our understanding of the cold tolerance mechanism in cotton, which might accelerate functional genomics studies and genetic improvement for cold stress tolerance in cultivated cotton.
All-FIT: allele-frequency-based imputation of tumor purity from high-depth sequencing data
Authors: Loh Jui Wan , Guccione Caitlin , Di Clemente Frances , Riedlinger Gregory , Ganesan Shridar , Khiabanian Hossein 
Published: November 2019

AbstractSummaryClinical sequencing aims to identify somatic mutations in cancer cells for accurate diagnosis and treatment. However, most widely used clinical assays lack patient-matched control DNA and additional analysis is needed to distinguish somatic and unfiltered germline variants. Such computational analyses require accurate assessment of tumor cell content in individual specimens. Histological estimates often do not corroborate with results from computational methods that are primarily designed for normal–tumor matched data and can be confounded by genomic heterogeneity and presence of sub-clonal mutations. Allele-frequency-based imputation of tumor (All-FIT) is an iterative weighted least square method to estimate specimen tumor purity based on the allele frequencies of variants detected in high-depth, targeted, clinical sequencing data. Using simulated and clinical data, we demonstrate All-FIT’s accuracy and improved performance against leading computational approaches, highlighting the importance of interpreting purity estimates based on expected biology of tumors.Availability and implementationFreely available at http://software.khiabanian-lab.org.Supplementary informationSupplementary data are available at Bioinformatics online.
TFmiR2: constructing and analyzing disease-, tissue- and process-specific transcription factor and microRNA co-regulatory networks
Authors: Nazarieh Maryam , Hamed Mohamed , Spaniol Christian , Will Thorsten , Helms Volkhard 
Published: November 2019

Abstract

Summary
TFmiR2 is a freely available web server for constructing and analyzing integrated transcription factor (TF) and microRNA (miRNA) co-regulatory networks for human and mouse. TFmiR2 generates tissue- and biological process-specific networks for the set of deregulated genes and miRNAs provided by the user. Furthermore, the service can now identify key driver genes and miRNAs in the constructed networks by utilizing the graph theoretical concept of a minimum connected dominating set. These putative key players as well as the newly implemented four-node TF-miRNA motifs yield novel insights that may assist in developing new therapeutic approaches.

Availability and implementation
The TFmiR2 web server is available at http://service.bioinformatik.uni-saarland.de/tfmir2.

Supplementary information
Supplementary data are available at Bioinformatics online.