bluuebunny/crossref_metadata_2025 huggingface dataset:
Sport- und Bewegungstherapie als Standard der modernen Krebsmedizin: Verfügbare Strukturen und Konzepte zur Versorgung onkologischer Patienten
Authors: Wiskemann Joachim , Baumann Freerk T.
Published: August 2019

Die Evidenz zur Wirksamkeit von Sport- und Bewegungstherapie bei Krebserkrankungen ist im letzten Jahrzehnt stark gestiegen. Daher werden in Deutschland derzeit Strukturen und Konzepte implementiert, die eine qualitativ hochwertige und flächendeckende Versorgung von onkologischen Patientinnen und Patienten anstreben. Das Netzwerk OnkoAktiv zielt mit der Vernetzung und Qualitätssicherung existierender Versorgungsstrukturen auf den einfachen Zugang zu spezifischen Bewegungsangeboten durch Betroffene. Die Initiative der Onkologische Trainings- und Bewegungstherapie (OTT) sichert mit dem entsprechenden Ausbildungskonzept den therapeutischen Standard in der Arbeit mit onkologischen Patienten.
Die klassischen und minimal invasiven Verfahren der Bypassoperation: Welche Technik für welche Patienten?
Authors: Albert Alexander , Akhyari Payam
Published: August 2019

Im Folgenden soll auf Basis der aktuellen Literatur und unserer Erfahrung erläutert werden, welche Techniken für welche Patienten infrage kommen. Die Wirkweisen der Bypass-OP sind 2-fach: Beseitigung von Ischämie durch Überbrückung hämodynamisch signifikanter Stenosen und eine Art Kollateralenfunktion, d. h., wenn es proximal des Bypasses zu Plaquerupturen und Gefäßverschlüssen kommt, ist das nachfolgende Myokard geschützt. Daher ist eine komplette anatomische Revaskularisation vorteilhaft, um nicht nur die Freiheit von Angina-pectoris-Beschwerden zu erzielen, sondern langfristig vor Myokardinfarkten zu schützen und potenziell das Leben zu verlängern. Bedeutend sind auch die Qualität des Graftmaterials und dessen Anordnung (aortal vs. Composite): Arterielle Bypässe zeigen höhere Offenheitsraten, neigen aber zu Spasmen und Verschlüssen bei hohem kompetitivem Fluss, sodass manchmal auch ein Venenbypass mit aortaler Anastomose vorzuziehen ist. Neue chirurgische Techniken der Venenprotektion verbessern deren Offenheitsraten. Für eine Minimierung des Operationsrisikos ist auch eine Expertise in Off-Pump-Techniken, insbesondere des An-aortic-OPCAB, unerlässlich. Minimalinvasive Bypass-OPs (MIDCAB und Multivessel-MIDCAB) kommen der zunehmenden Nachfrage der Patienten nach einem schonenderen Eingriff und früherer Belastbarkeit entgegen.
An Overview of the Current State of Pediatric Scoliosis Management
Authors: Rüwald Julian M. , Eymael Robin L. , Upenieks Janis , Zhang Li , Jacobs Cornelius , Pflugmacher Robert , Schildberg Frank A.
Published: August 2019

Historically pediatric scoliosis represents a condition deeply rooted within the origins of orthopedic surgery. Today only a few subspecialized surgeons treat pediatric scoliosis patients. In severe cases surgery can hold progression of and correct pathologic spinal curvature. The goal of this article is to provide an overview of the current state of pediatric scoliosis management. It aims to increase the attention of general physicians and orthopedic surgeons to a niched but rather frequently encountered pediatric pathology to facilitate early recognition and diagnosis. A thorough research of literature was conducted to summarize the different scoliosis types, their etiology and presentation. Classification, normal human growth phases and curve progression risk have been further elaborated. Finally, current treatment options with their benefits, shortcomings and complications were laid out and discussed. Among the etiological groups a focus was put on idiopathic scoliosis, in particular adolescent idiopathic scoliosis as the most frequently encountered subtype.
Adverse Events beim Training mit onkologischen Patienten: Wie sicher ist das Training außerhalb klinischer Studien?
Authors: Clauss Dorothea , Quirmbach Franziska , Wiskemann Joachim , Rosenberger Friederike
Published: August 2019

Über das Auftreten von Zwischenfällen, sogenannten Adverse Events, im Training mit onkologischen Patienten liegen bislang nur wenige Daten vor. Diese wurden im Rahmen von klinischen Studien erfasst und beschreiben das Training als sicher. Ziel der vorliegenden Arbeit war es, die Sicherheit von Training mit onkologischen Patienten in der Routineversorgung zu erfassen.

Mithilfe eines selbstentwickelten Fragebogens wurden retrospektiv für das Jahr 2017 Trainingszentren befragt, wie häufig Serious Adverse Events (Tod, reanimationspflichtiger Herzkreislaufstillstand, Knochenbrüche, Narbenbrüche, Verletzungen) und Non-Serious Adverse Events (Krampfanfälle, Übelkeit / Erbrechen, muskuläre Beschwerden, Kreislaufbeschwerden, oberflächliche Wunden / Hämatome) während des Trainings mit onkologischen Patienten aufgetreten waren.

Es konnten 34 Fragebögen aus 12 Ländern ausgewertet werden. In insgesamt 91.252 Patientenstunden traten 672 Adverse Events auf. Davon wurden 10 Zwischenfälle als Serious Adverse Events bewertet (Inzidenz 11 pro 100.000 Patientenstunden), wobei keine Todesfälle darunter waren. Die meisten (n = 6) Serious Adverse Events traten während des Ausdauertrainings auf. Als Non-Serious Adverse Events wurden 662 Zwischenfälle angegeben (Inzidenz 725 pro 100.000 Patientenstunden). Non-Serious Adverse Events wurden auf alle Trainingsarten verteilt beobachtet.

Training mit onkologischen Patienten in der Routineversorgung außerhalb von Studien kann vorläufig als sicher bewertet werden, da die vorliegende erste Erhebung in über 90.000 Patientenstunden keinen Todesfall ergab. Allerdings sollten Sporttherapeuten auf Zwischenfälle vorbereitet sein und Ausdauertraining besonders aufmerksam betreuen.
ITO-based electro-absorption modulator for photonic neural activation function
Authors: Amin R. , George J. K. , Sun S. , Ferreira de Lima T. , Tait A. N. , Khurgin J. B. , Miscuglio M. , Shastri B. J. , Prucnal P. R. , El-Ghazawi T. , Sorger V. J.
Published: August 2019

Recently, integrated optics has become a functional platform for implementing machine learning algorithms and, in particular, neural networks. Photonic integrated circuits can straightforwardly perform vector-matrix multiplications with high efficiency and low power consumption by using weighting mechanism through linear optics. However, this cannot be said for the activation function, i.e., “threshold,” which requires either nonlinear optics or an electro-optic module with an appropriate dynamic range. Even though all-optical nonlinear optics is potentially faster, its current integration is challenging and is rather inefficient. Here, we demonstrate an electroabsorption modulator based on an indium tin oxide layer monolithically integrated into silicon photonic waveguides, whose dynamic range is used as a nonlinear activation function of a photonic neuron. The thresholding mechanism is based on a photodiode, which integrates the weighed products, and whose photovoltage drives the electroabsorption modulator. The synapse and neuron circuit is then constructed to execute a 200-node MNIST classification neural network used for benchmarking the nonlinear activation function and compared with an equivalent electronic module.
In situ strain dependent
electrochemical characterization of a stretchable-sliding
battery
Authors: Kelly T. , Vu A. , Yuan M. , Kammoun M. , Ardebili H.
Published: August 2019

Stretchable batteries are needed to accommodate deformable geometries in tantalizing applications such as smart textiles, biomedical implants, and stretchable electronics. An increasing number of studies have focused on flexible and bendable batteries, but very few have investigated a stretchable lithium ion battery in which some or all components, including the electrodes, electrolyte, and encapsulation may be stretched. Here, we report the design, fabrication and characterization of a stretchable-sliding battery where the electrodes can slide, and the solid polymer electrolyte is stretched. The battery consists of a single solid polymer electrolyte film sandwiched between two sliding layered electrodes on each side. The two cathode layers are based on LiFePO4 active material, and the two anode layers are graphite based. The stretchable polymer electrolyte is composed of a specific blend of polyethylene oxide (PEO) of 100k and 600k molecular weights to enhance both the ionic conductivity and mechanical properties. Results show that the capacity of the stretchable-sliding battery increases at small tensile strains, but can degrade at larger strains. Tensile stress-strain curves of the stretchable battery and its components until failure are also presented. In situ strain-dependent electrochemical measurements provide critical insights on the stretching and sliding mechanisms in the battery. This study further validates the dual-functionality of the PEO solid electrolyte as both a stretchable film and a lithium ion conductor in a charged/discharged battery. This stretchable-sliding battery configuration can offer an experimental platform for in situ characterizations of solid polymer electrolyte films subjected to stretching inside an active electrochemical cell.
Supplementation of diets with glutamine and glutamic acid attenuated the effects of cold stress on intestinal mucosa and performance of weaned piglets
Authors: Leite da Silva Adriano , dos Santos Severino Guilherme Caetano Gonçalves , Saraiva Edilson Paes , Fonsêca Vinícius de França Carvalho , Givisiez Patrícia Emília Naves , Pascoal Leonardo Augusto Fonseca , Martins Terezinha Domiciano Dantas , de Amorim Mikael Leal Cabral Menezes
Published: August 2019

In this study we investigated the effect of glutamine and glutamic acid inclusion in the diet of weaned piglets subjected to cold stress and thermoneutral environment. Sixty-four weaned piglets were assessed from 28 to 65 days of age. A completely randomised design consisting of a 2 × 2 factorial arrangement was tested – environments (thermoneutral and cold stress) and diets (control and L-glutamine + L-glutamic acid (G + GA)). Performance, relative organ weight and carcass yield, and morphology of the intestinal mucosa were assessed. Supplementing the diets with G + GA reduced feed intake under both environments. This was associated with a decline in growth rate for piglets in the thermoneutral environment but not in the cold environment (P < 0.002). Feed efficiency was lower for piglets offered the control diets in the cold environment, but was significantly improved (24.6%) by G + GA supplementation in the cold but not the thermoneutral environment (P < 0.001). G + GA supplementation decreased small intestinal length and altered intestinal morphology with the highest villus/crypt depth ratio observed in piglets offered the G + GA supplemented diet in the cold environment. In summary, glutamine and glutamic acid diets mitigated the effects of cold stress on the intestinal mucosa and performance of weaned piglets.
Presence of Remora remora on Mobula birostris in Revillagigedo National Park, Mexico
Authors: Becerril-García E. E. , Gutiérrez-Ortiz M. A. , Preciado-González P. A. , Ayala-Bocos A.
Published: August 2019

The ecology of mantas and echeneids in the Tropical Eastern Pacific is poorly understood. In this study we describe the frequency of interactions between the vulnerable Mobula birostris and its symbiont Remora remora based on observations of scientists and tourists in a marine protected area. Data were obtained by analysing underwater photographs of observed mantas with remoras over 139 diving days at sea during the period 2016–17. In all, there were 271 photographic records of this symbiosis, corresponding to 207 mantas, with a mean (±s.d.) of 1.6±0.6 remoras per manta. This study is the first to provide information regarding the sex ratio, length, morphotype frequency and echeneids per manta of M. birostris in the Tropical Eastern Pacific.
Between Fantasy and Philosophy: Saʿdi, Translator of Voltaire’sZadig
Authors: Whiskin Margaux
Published: August 2019

Zadig ou la Destinéeopens on a preface supposedly written by Sadi (sic), who seems to suggest he is the translator of the story which is to follow. The article will investigate the role played by Voltaire’s reference to Saʿdi inZadigas an Oriental prop for the narrative’s exotic setting, but also, more importantly, as participating in its philosophical content. Travelers’ accounts had brought growing interest in Persia, and Saʿdi would not have been unfamiliar to an educated public; the Orient more generally became an experimental space for Enlightenment thought. Playing on the notion of the translator as cultural bridge, the article examines the uses Voltaire makes of Saʿdi inZadigand whether these correlate to the eighteenth-century French reader’s perceptions of the Iranian poet.
The Placebo and Nocebo effect on sports performance: A systematic review
Authors: Hurst Philip , Schipof‐Godart Lieke , Szabo Attila , Raglin John , Hettinga Florentina , Roelands Bart , Lane Andrew , Foad Abby , Coleman Damian , Beedie Chris
Published: August 2019

The aim of this review was to determine the magnitude of the placebo and nocebo effect on sport performance. Articles published before March 2019 were located using Medline, Web of Science, PubMed, EBSCO, Science Direct, and Scopus. Studies that examined placebo and nocebo effects of an objective dependent variable on sports performance, which included a control or baseline condition, were included in the analysis. Studies were classified into two categories of ergogenic aids: (1) nutritional and (2) mechanical. Cohen's d effect sizes were calculated from 32 studies involving 1513 participants. Small to moderate placebo effects were found for both placebo (d = 0.36) and nocebo (d = 0.37) effects and when separated by nutritional (d = 0.35) and mechanical (d = 0.47) ergogenic aids. The pooled effect size revealed a small to moderate effect size across all studies (d = 0.38). Results suggest that placebo and nocebo effects can exert a small to moderate effect on sports performance.
Extracellular vesicles circulating in young organisms promote healthy longevity
Authors: Prattichizzo Francesco , Giuliani Angelica , Sabbatinelli Jacopo , Mensà Emanuela , De Nigris Valeria , La Sala Lucia , de Candia Paola , Olivieri Fabiola , Ceriello Antonio
Published: August 2019

Parabiosis experiments in mice demonstrated that a young environment could partially rejuvenate multiple tissues of old organisms. However, the circulating mediators responsible of such effect have been elusive so far. Novel results suggest that extracellular vesicles isolated from plasma of young mice increase lifespan in old mice. Here we integrate these findings in a larger framework, advancing the hypothesis that circulating vesicles may mediate the beneficial effect of a young milieu on ageing.
Comparative Study on Routing Protocol for Ad Hoc Network
Authors: Chen Ying , Hu Xiang
Published: August 2019

Three typical routing protocols, Destination Sequence Distance Vector (DSDV), Dynamic Source Routing (DSR) and Ad-Hoc On-Demand Distance Vector (AODV), are analyzed and studied. In addition, three network performance indicators, which are end-to-end average delay (E2EAD), routing overhead (RO) and packet reception rate (PRR), are used to evaluating advantages and weaknesses of these three routing protocols. The simulation results, which are based on the NS2 (Network Simulator Version 2), show that AODV has balanced property in both E2EAD and PRR. However, AODV is inferior to DSDV and DSR in terms of RC. In addition, in view of feature of AODV, a modified AODV (MAODV) routing protocol for the environment of network topology that changes frequently is proposed in this paper. The experimental results show that the MAODV has superior properties in terms of E2EAD and RC.
Surface Blemishes of Aluminum Material Image Recognition Based on Transfer Learning
Authors: Ming Hao , Xu Ke
Published: August 2019

Image datasets in the field of industrial manufacturing usually have the problem of uneven distribution of samples. To solve this problem, this paper utilizes transfer learning to recognize surface blemishes of Aluminum material image. In order to get rid of the disadvantage of VGGNet too many parameters, this paper combines VGGNet with Network-in-Network to generate a new model. The results of experiments is shown that it has achieved significant improvement by using transfer learning. Additionally, the new model also achieves a better performance and the number of parameters of the new model is much smaller than that of the original VGGNet.
Training Platform for Continuous Casting Based on Multi-Model Interactions
Authors: Gu Xuejing , Kan Kuo , Guo Yucheng
Published: August 2019

Currently, the human-computer interaction technology, as the core technology of virtual reality, has been developing rapidly. By analyzing the advantages and disadvantages of the mainstream interactive equipment used in today’s market and combining the advantages of the equipment, this paper posed a continuous casting training platform with multiple interactive modes. In this platform, the keyboard and mouse interaction mode, contact interaction mode and VR device interaction mode could be simultaneously applied to continuous casting training, which enables to give play to the characteristics of different interaction modes. Comparing with the single interaction mode, it proved that this platform would improve the efficiency of user interaction and enhance the training effect, as well as to propose a reference for human-computer interaction mode.
Multifunctional Emergency Plugging Test and Simulation Training Method
Authors: Jiao Hongwei
Published: August 2019

This research involves multifunctional belt pressure emergency leak test and simulation training methods, through a lot of water pressure test, Flow meter, pressure transmitter, liquid level meter, inverter and other effective flow, pressure, liquid level sensors, motor frequency data, to provide emergency leak test and simulation training scientific reference data and theoretical basis.
A new SAT Encoding Scheme for Exactly-one Constraints
Authors: Cai Jiatong , Su Yating , Yang Xixi , Min Jionghao , Lai Yong
Published: August 2019

Exactly-one constraints have comprehensive applications for the fields of artificial intelligence and operations research. For many encoded SAT problems generated by the existing encoding schemes of exactly-one constraints, the state-of-the-art knowledge compilers cannot complete compilation. In this paper, we propose a new encoding scheme of exactly-one constraints. We introduce two-dimensional auxiliary variables (represented as a matrix) to denote the constraint that exactly one of some variables can be assigned as true. The clauses generated by our scheme is significantly less than those generated by three other existing encoding schemes. The experimental results on the exact cover problems show that the encoded CNF formulas generated by our scheme requires less compilation time, compared with the other three coding schemes.
Study on WeChat Service of Library in University--Based on Readers’ Behavioral Needs
Authors: Zhang Yunli , Chen Lijuan
Published: August 2019

The paper used Maslow’s hierarchy of needs theory to study library WeChat service based on readers’ needs. Firstly, we designed a questionnaire to find out readers’ WeChat needs. We divided readers’ expectations on library WeChat service into five levels. We carried out a mean analysis for each level of indicators. Then we used PASW statistical analysis methods to analyze relevant questionnaire data. Four main questions on library WeChat services were concluded. Finally, the paper provided four countermeasures which provides inspiration and reference for the library that has already launched and is about to launch WeChat service.
Frictional Properties of Rotary Glyd-ring under Water Lubrication
Authors: Yang Yousheng , Wang Jie , Zhao Jing
Published: August 2019

The ocean, which covers about 70% of the earth surface, contains abundant natural resources, such as organisms, minerals, energy resources, and etc. Development and utilization of ocean resources is an important way to solve the problems of population, resources and environment that human beings are confronting with. Besides, the underwater operation equipment plays an important role in the development and utilization of the ocean. The rotary dynamic seal, which exerts great effects on the static and dynamic performances, reliability, life span and etc. is a key technology of the underwater rotating equipment. This research focuses on the frictional properties of rotary dynamic Glyd-ring under water lubrication. A physical model is proposed to study the effects of rotational speed and working pressure on the maximum Von Mises stress numerically. A rotary seal test bench is developed and experiments have been carried out to investigate the friction, torque of Glyd-ring under different rotational speed, different sealing pressures on one or both seal sides. The research results provide a basis for the design of dynamic seals for deep sea equipment.
Probabilistic global maps of crop-specific areas from 1961 to 2014
Authors: Jackson Nicole D , Konar Megan , Debaere Peter , Estes Lyndon
Published: August 2019

Agriculture has substantial socioeconomic and environmental impacts that vary between crops. However, information on how the spatial distribution of specific crops has changed over time across the globe is relatively sparse. We introduce the Probabilistic Cropland Allocation Model (PCAM), a novel algorithm to estimate where specific crops have likely been grown over time. Specifically, PCAM downscales annual and national-scale data on the crop-specific area harvested of 17 major crops to a global 0.5-degree grid from 1961 to 2014. To do this, pixels are assigned into probability clusters based upon crop-specific pixel suitability (based on mean climate and soil characteristics) and gridded historical agricultural areas. PCAM maps compare relatively well with an existing gridded dataset of crop-specific areas circa 2000 (simple matching coefficient value >0.8 for all crops). PCAM estimates compare less well with time series county-level agricultural census data for the United States. Importantly, deviations between census data and PCAM benchmark estimates (driven by soil and climate suitability) can be used to infer the importance of other factors of agricultural production (e.g. labor, agricultural policy, extreme climate) in future work. Our results provide new insights into the likely changes in the spatial distribution of major crops over the past half-century.
Disproportionately higher exposure to urban heat in lower-income neighborhoods: a multi-city perspective
Authors: Chakraborty T , Hsu A , Manya D , Sheriff G
Published: August 2019

A growing literature documents the effects of heat stress on premature mortality and other adverse health outcomes. Urban heat islands (UHI) can exacerbate these adverse impacts in cities by amplifying heat exposure during the day and inhibiting the body’s ability to recover at night. Since the UHI intensity varies not only across, but also within cities, intra-city variation may lead to differential impact of urban heat stress on different demographic groups. To examine these differential impacts, we combine satellite observations with census data to evaluate the relationship between distributions of both UHI and income at the neighborhood scale for 25 cities around the world. We find that in most (72%) cases, poorer neighborhoods experience elevated heat exposure, an incidental consequence of the intra-city distribution of income in cities. This finding suggests that policymakers should consider designing city-specific UHI reduction strategies to mitigate its impacts on the most socioeconomically vulnerable populations who may be less equipped to adapt to environmental stressors. Since the strongest contributor of intra-urban UHI variability among the physical characteristics considered in this study is a neighborhood’s vegetation density, increasing green space in lower income neighborhoods is one strategy urban policymakers can adopt to ameliorate some of UHI’s inequitable burden on economically disadvantaged residents.
Responses of soil respiration to experimental warming in an alpine steppe on the Tibetan Plateau
Authors: Wang Guanqin , Li Fei , Peng Yunfeng , Yu Jianchun , Zhang Dianye , Yang Guibiao , Fang Kai , Wang Jun , Mohammat Anwar , Zhou Guoying , Yang Yuanhe
Published: August 2019

High-latitude and high-altitude ecosystems store large amounts of carbon (C) and play a vital role in the global C cycle. Soil respiration (R
S) in these ecosystems is believed to be extremely sensitive to climate warming and could potentially trigger positive C-climate feedback. However, this evidence is largely derived from wet ecosystems, with limited observations from dry ecosystems. Here, we explored the responses of R
S, autotrophic (R
A), and heterotrophic (R
H) respiration under experimental warming in a dry ecosystem, an alpine steppe on the Tibetan Plateau. We assessed the effects of soil temperature and moisture dynamics on R
S, R
A, and R
H and performed a meta-analysis to examine whether the warming effects observed were similar to those reported in wet ecosystems, including Tibetan alpine meadow and arctic ecosystem. Experimental warming did not alter R
S, R
A, and R
H in this alpine steppe, likely because decreased soil moisture constrained positive warming effects. In contrast, the meta-analysis revealed that R
S exhibited a significant increase under experimental warming in both the Tibetan alpine meadow and arctic wet tundra. These results demonstrate that R
S exhibits different responses to climate warming between dry and wet ecosystems, suggesting potential more complex C-climate feedback in cold regions.
Mathematical model of enzymatic reactions of coconut coir substrate treated by alkaline and ionic liquid into the reducing sugars using power series
Authors: Sangian H F , Widjaja A
Published: August 2019

The research purposed at formulating the kinetics model of reducing sugars liberated from coconut coir dust treated with alkaline, ionic liquid, alkaline followed by ionic liquid employing a power series. The method was successful to predict the sugar concentration released from the substrate in a biocatalytic reaction employing cellulose, and a mixture of cellulase+xylanase at any time. The yield of sugar released enzymatically was modeled as an equation in power series in which the results were comparable to those of the experimental data. The biggest constant rate obtained was of 0.0200000 h−1for an application of a mixture of enzymes on the conversion of NaOH-treated substrate into the reducing sugars. Generally, the trend of the modelled graph was close to the experiment but the error was quietly wide in the initial times since the conversion rate was very high. The lines were an agreement when the time was above 8h for all pre-treatments (native-, 1%NaOH-, IL-, and 1%NaOH+IL substrates). It was indicative the power series can be used to solve a differential equation generated from a rate equation.
Measuring the tourist destination images based on service quality using fuzzy inference system
Authors: Wullur M , Sutapa I N
Published: August 2019

The article discusses the measurement of tourist destination images perceived by travelers based on five dimensions of the service quality, i.e. tangibles, reliability, responsiveness, empathy, and assurance. Measurement problems occur when a traveller assesses the quality of a tourism destination service subjectively with vague boundaries and perceives the image of a tourism destination to vary. To address these issues, we designed an inference model using Mamdani’s fuzzy inference system. The results of this study are quantitative assessments of the image of tourism destinations by various travellers based on qualitative perceptions of the quality of service experienced by the traveller.
Discrete optimal capital investment and financing policies in fishery resource harvesting with reserve area
Authors: Alatas M N , Bakhtiar T , Hanum F
Published: August 2019

This research discusses a problem in renewable resource (fish) harvesting on single-owner fishery where the dynamics of growth are expressed by system of difference equations. The model involves three state variables (stock of equity, resource stock in reserve zone and unreserved zone) and two control variables (effort rate and dividend payout rate). Discrete Pontryagin maximum principle was applied to obtain optimality conditions which must be satisfied by the variables. Further, the forward-backward sweep method was used to determine the numerical solution of optimal control model. Three scenarios of interest rate applied to find out the response of company in managing harvesting effort and dividend payout rate were investigated.
A hyperchaotic hyperjerk system with four nonlinearities, its dynamical analysis and circuit realization
Authors: Mujiarto  , Vaidyanathan S , Zhang S , Sambas A , Sukono  , Praiwi A S , Subiyanto
Published: August 2019

A new four-dimensional hyperchaotic hyperjerk system with four nonlinearities is proposed in this paper. The dynamical properties of the new hyperjerk system are described in terms of phase portraits, Lyapunov exponents, Kaplan-Yorke dimension, dissipativity, etc. Also, a detailed dynamical analysis of the new hyperjerk system has been carried out with bifurcation diagram and Lyapunov exponents. As an engineering application, an electronic circuit realization of the new hyperchaotic hyperjerk system is designed via MultiSIM to confirm the feasibility of the theoretical hyperchaotic hyperjerk model.
Properties of anti-adjacency matrix of directed cyclic sun graph
Authors: Prayitno M I A , Utama S , Aminah S
Published: August 2019

In this paper we focus on the properties of anti-adjacency matrix of directed cyclic sun graph. Some of these properties are related to the characteristic polynomials and the eigenvalues of the anti-adjacency of its matrix. We will show the general form of characteristic polynomial of the anti-adjacency matrix of directed cyclic sun graph by figuring out the number of the directed induced-cyclic graphs and the directed induced-acyclic graphs. After we find out the general form of the characteristic polynomial, we can find the general form of the eigenvalues of its polynomial by using factorization and Horner methods.
Blending fishwastes and chicken manure extract as low-cost and stable diet for mass culture of freshwater zooplankton, optimized for aquaculture
Authors: Ogello E O , Wullur S , Hagiwara A
Published: August 2019

This study investigated the feasibility of fishwastes and chicken manure extract (CME) as cheap diet for mass culture of freshwater zooplankton. CME and fishwastes as well as carbon source were used to make fishwaste diets (FWD). Each diet was triplicated 3 days before inoculation with 5, 2 and 0.4 ind ml−1of rotifers, copepods and cladocerans, respectively in each tank. About 5ml of water was done daily, from which the zooplankters were counted. Harvesting was done at the first exponential growth phase by replacing 50% of the water and FWD. There was a significantly higher density of zooplankton and SGR in FWDBthan FWDAand control tanks. The zooplankton obtained highest densities on day 7 as follows: rotifers: 100.6±14.8, 146.3±7.0, and 60.0±7.9 ind ml−1in FWDA, FWDBand the control tanks, respectively; the copepods: 8.0±11.1, 12.6±13.6 and 4.3±2.1 ind ml−1in FWDA, FWDBand control tanks, respectively; the cladocerans: 3.3±6.0, 8.6±8.7 and 3.6±2.5 ind ml−1in FWDA, FWDBand control tanks, respectively. The most abundant genera wereBrachionussp.,Cyclopssp. andDaphniasp. for the rotifers, copepods and cladocerans, respectively. This study offers an alternative to expensive on-site microalgal production toward a more cost-effective aquaculture.
Study on existence of the fisheries resources abundance by using environmental deoxyribonucleic acid (e-DNA) approach at fishing grounds in the Sulawesi Sea, Indonesia
Authors: A Masengi Kawilarang W , Mandagi I F , Manu L , Silooy F , Labaro I L , Masengi A W R , Sebua N , Masengi E I K G , Pinontoan Benny , Hutabarat Y , Hukom F , Iwata M , Abe Y , Sato Y , Kimura R , Yamahira K
Published: August 2019

Here, we report the results of our preliminary study on deep sea eDNA at fishing ground to approach the fisheries resources abundance at Sulawesi sea by using deep-sea water sampling collected from 10 sites ranging from 110m-200m in depth at front side of the International Coelacanth Research Center and Museum Base at Lolak Waters and Manado Bay North of Sulawesi using Nansen Bottle Sampler (1500 cc). The collected waters were filtered using Power Water Sterivex DNA Isolation Kits and preserved with the DNAiso Reagent then transported to Center for Strategy Research Project, University of the Ryukyus, Okinawa Japan where eDNA analyses were conducted. Our results revealed that the concentrations of eDNA has a good quality were measured with a NanoDrop Lite spectrophotometer, indicating eDNA was successfully extracted. Therefore, by using universal primers for eDNA, MiFish-U-F/R for the 1st-PCR (mt-12S amplification) and 2nd-PCR (tag-indexing) for library preparation to accommodate sequence variations and show that intense signal of MiFish eDNA amplification. Using a high-throughput Illumina MiSeq platform for sequencing analyses, we detected eDNA from 40 fish’s species with dominantly by Caranx sexfasciatus, Encrasicholina punctifer.
Container terminal landside operation analysis and discrete event simulation in container terminal in port: a case study of Terminal 3 Ocean-going PT Pelabuhan Tanjung Priok
Authors: Nasution A R , Arviansyah
Published: August 2019

This study discusses the landside operation and presents the application of Truck Appointment System (TAS) and lane segmentation strategy through discrete event simulation in Terminal 3 Ocean-going PT Pelabuhan Tanjung Priok. This study aims to analyze the operation planning system in Terminal 3 Ocean-going and identify problems that exist on terminal 3. This study also seeks to examine the landside operation process and offer alternative scenarios to solve the congestion problem in the terminal. Alternative scenarios provided are a combination of Truck Appointment System (TAS) and lane segmentation strategy. Truck Appointment Strategy (TAS) with 100% utilization is proved to reduce average total time in the system by 76% and reduce average total time in peak days by 88%, from 151.5 minutes to 38.4 minutes per truck. Truck Appointment System (TAS) is also proved to reduce queue length by 97%, from 162 trucks to 5 trucks.
Analysis of supply chain management in ABC poultry using system dynamics approach
Authors: Jufiardi J W , Pinagara F A
Published: August 2019

This study discusses supply chain management to produce broilers in ABC Poultry using System Dynamics approach. Small poultry farm in Indonesia must make a decision to sustain itself in the midst of needs to increase its capacity and facing issue with dependency to day-old chick producers. The purpose of this study is to analyse the supply chain management to increase profitability of the poultry in between two options of decision, buying the day-old chicks from third-party supplier or doing vertical integration to produce its own day-old chicks. This study found that doing vertical integration is the best option for the poultry because it can increase the profitability of the poultry and reduce the sensitivity of day-old chick price to the poultry.
Grain size distribution, morphology, and elemental composition of iron sand from North Sulawesi
Authors: Tamuntuan G H , Tanauma A , Pasau G , Sangian H
Published: August 2019

The coast of North Sulawesi has very potential natural resources. Coastal sand with relatively high iron content or commonly known as iron sand was detected in several locations. Iron sand is a source of economical minerals, namely iron (Fe), which is easier to treat compared to sources in stone form. However, scientific studies on iron sand minerals, especially those in the coastal areas of North Sulawesi, are still poor. Therefore, a study is needed to find out how the mineralogy, morphology and characteristics of iron sand particles in North Sulawesi. The results show that distribution of sand deposit range fine to coarse in size. However, fine-sized grains were dominant in samples from Lalow, Lolan, as well as Hais regions, whereas medium-sized grains were dominant in sample from Minanga. It probably indicates that Minanga area is relatively close to rock as a source of sand formation than other sampling location. In general, SEM observations show grains with relatively rounded in their morphology as well as have a smooth surface which is indicating a long range transport of these grains. EDX results show that the major elements in representative sand grains are Fe, Ti, and O, while the minor elements are Si, Al, Mg, Na, Co, Cl, and Ca. Fe content range from 45.18 to 61.48 wt%, whereas Ti content range from 4.35 wt% to 7.1 wt%.
Anatomical characteristics of stomata, mesophyll and petiole of six varieties sweet potatoes (Ipomoea batatas L.) after organic fertilizer induction
Authors: Rampe H L , Umboh S D , Siahaan R , Maabuat P V
Published: August 2019

The study aimed to evaluate the anatomical characteristics of six sweet potato varieties (Ipomoea batatas L.) after induction of organic fertilizer. Research used Completely Randomized Block Design with 3 replications. Five sweet potato varieties (J) were used i,e: Antin 3 (J1), Jago (J2), Cilembu (J3), Shi Royutaka (J4), Local Purple (J5) and Local White (J6). Petroganic Organic Fertilizers were applied 20 tons/ha, three weeks before sweet potato cuttings were planted. Observation of anatomical characteristics include: stomata density, length and width opened stomatal pores, mesophyll thickness, diameter of the petiole cortex. All characteristics were observed 60 days after planting (HST) using a microscope with a camera Optilab 2.2 and image capture with the Image Raster 3.0 program. Anatomical characters of sweet potatoes showed stomata density J1, J2, J3, J4, J5 and J6 respectively 8.56; 6.11; 5.11; 6.33; 8.56 and 9.11 in 75796.36 μm. The length of opened stomata pores were 26.99 μm, 32.08 μm, 28.96 μm, 38.72 μm, 39.52 μm and 35.86 μm. The width of opened stomata pores were 7.95 μm, 5.11 μm, 4.67 μm, 5.04 μm, 9.28 μm and 6.98 μm. The mesophyll thickness were 364,986 μm, 280,703 μm, 389,743 μm, 245,749 μm, 261,439 μm and 434,913 μm. The diameter of the petiole cortex were 454,030 μm, 373,453 μm, 456,439 μm, 373,001 μm, 275,647 μm and 318,785 μm. Five sweet potato varieties differ in anatomical characters.
Host plant and intensity pest attack Paracoccus marginatus on papaya plant in North Minahasa Regency
Authors: Mamahit J M E , Manueke J , Montong V B
Published: August 2019

The purpose of this study is to find out distribution and the host range of mealybug Paracoccus marginatus and their attack intensity in the field, especially in the centers of papaya cultivation in the North Minahasa region, North Sulawesi Province, Indonesia. The study uses a survey method conducted in four villages, namely: Matungkas, Laikit, Dimembe and Tetei. Sampling was done by purposive sampling. Sampling was carried out in three fields per village that had different cropping systems on the farms cultivated by farmers. Each location was sampled and observations were made on papaya plants to see whether papaya mealybug were attacked or not attacked. Samples of mealybug and host plants from the field were brought to the laboratory for identification. The results showed the attack intensity of mealybug ranged from 13.67% to 60%o. Symptoms of mealybug attack on papaya plantations was variated from the symptoms of low intensity to high intensity. The results of this research found host plants of P. marginatus consisted of seven species of plants, besides papaya namely: Annnona muricana, Persea gratissima, Codiaeum spp, Aglonema spp, Anthurium spp, Hibiscus spp. and Jatropha spp.
About waste disposal problem in Russian Federation
Authors: Abdullin T M , Sabirzyanov R G , Gilmanshin I R , Kashapov N F , Gilmanshina S I , Galeeva A I , Gadirova E M
Published: August 2019

The article discusses the problems of waste disposal methods that do not cope with the task of environmentally friendly disposal of municipal solid waste (MSW). The comparison of destruction and thermal destruction methods (plasma gasification in particular) are given.
Additive technology for filter membranes
Authors: Akhmadiev G M
Published: August 2019

Separation methods using membranes are used in many industries, in particular, in the field of environmental protection for the production of drinking water and the treatment of industrial liquid waste, in the chemical industry, petrochemistry, pharmaceuticals, food industry and in the field of biotechnology. In the framework of this research, new methods for membranes manufacturing are proposed, which in comparison with the known technical solutions from the point of view of reliability and performance, make it possible to obtain more results and also provide greater variability in the choice of substrate shapes and channels inside the substrate. The most effective technology is a method of manufacturing a membrane for tangential filtration of a fluid, and this membrane contains: a substrate having a three-dimensional structure and formed by a monolithic ceramic porous body in which paths are made to circulate the fluid being filtered, and at least one separating filter layer deposited on the wall of the circulation paths.
Efficiency increase of gas turbine work in the summer period
Authors: Balzamov D S , Balzamova E Yu , Ibatullin S R , Sabitov L S
Published: August 2019

The operation of thermal power plants on the basis of steam-gas and gas-turbine installations in the summer period of the year is accompanied by a drop in the generation of electric energy, which leads to a decrease in the profitability of the station as a whole. The article discusses one of the options for improving the efficiency of gas turbines through the use of absorption chillers.
Studying the Effects of Mechanical Loads and Environmental Conditions on the Drive-Axle Performance
Authors: Barykin A Yu , Mukhametdinov M M , Takhaviyev R Kh , Samigullin A D
Published: August 2019

The paper discusses the problem of achieving the required output parameters of a truck drive under various operating conditions. The authors enumerate the final-drive and differential mechanical efficiency, the pre-load torque in the final-drive bearing assembly, the friction coefficient, and the differential locking factor as the most significant technical parameters of the drive axle and its components. The main factors that affect these parameters during operation are: (i) mechanical loads that transmission is exposed to when transmitting the torque from the engine to the drive wheels; (ii) the effects of external thermal and dynamic loads when driving on an uneven surface or in cold / hot climates. The paper describes the main dependences between the final-drive processes and the inter-wheel differential processes; it also demonstrates how the aforementioned factors affect the output parameters of the component. The assumptions hereof are based on the results of bench and field truck tests, including adverse-climate tests. We herein propose a method for estimating the drive-axle load, which is based on the weighted values of the aforementioned factors. We prove it feasible to use auto-adjusted heating of the drive-axle components. The degree of thermal exposure shall be determined with due account of environmental conditions, surface conditions, engine and transmission parameters. The control algorithm is supposed to automatically take into account any change in one or more factors. This approach to controlling the output parameters helps improve the efficiency and the longevity of the drive axle and truck as a whole.
Estimation of the state of a technical system with substantially non-linear characteristics
Authors: Demyanov D N
Published: August 2019

The article considers the problem of estimating the state of the technical system described by nonlinear differential equations. An approach is proposed to design reduced-order asymptotic observers for systems where dynamic equations contain products of state variables. The solvability conditions for the synthesis problem in the form of linear matrix equations are determined. The possibility of reducing the original problem to the classical modal control problem is shown. Two modifications of the algorithm for calculating the coefficients of the state observer, which ensures that the estimation error is asymptotically zero, are proposed.
Development of technologies for producing heat-conducting syntactic carbon foams with specified operational properties
Authors: Galimov E R , Sharafutdinova E E , Galimova N Ya , Samoylov V M , Danilov E A
Published: August 2019

Technology for producing the articles based on the syntactic carbon foams is proposed. Components and regime parameters for producing the foams of open-porous cellular structure with specified thermophysical and strength characteristics are determined.
Methods of training specialists in the field of sustainable resource management and waste management
Authors: Gilmanshin I R , Gilmanshina S I , Galeeva A I , Gadirova E M , Galeev I A
Published: August 2019

the method of the university students’ engineering thinking development has been studied in the article, the experience of major universities of Germany implementing master programs in the field of sustainable resource management and waste management has been analyzed, the reasonableness of leading educational practices application by the specific topic lectures, the problem situations analysis, the logic of the engineering problems formulation has been substantiated.
Digital learning technologies in the University education system
Authors: Gilmanshina S I , Gilmanshin I R , Bendjukevich K G
Published: August 2019

Digital educational resources developed by the authors for information and methodological support of subject disciplines in the system of university education are considered. The digital learning technologies and the capabilities of the electronic resource “Book” are analyzed.
Methods of identifying talent in the field of engineering and natural sciences
Authors: Gilmanshina S I , Bendjukevich K G , Gilmanshin I R , Glushkova V A , Gadirova E M
Published: August 2019

The distinctive characteristics of giftedness in the field of engineering and natural sciences are highlighted. The problems of intellectual giftedness are considered. The application of the projective method of diagnosing divergent thinking to determine endowments in the field of engineering and natural sciences, taking into account its adaptation, is substantiated.
Economy of energy conservation
Authors: Hajieva S R , Gadirova E M , Sharifova N Sh , Gilmanshina S I , Gilmanshin I R
Published: August 2019

The economy of energy conservation requires harmonizing the interests of energy producers and consumers. Such an agreement is possible in this case that the resource capabilities of the manufacturer and energy conservation of the consumers are considered simultaneously and on a unified basis. Investments should be directed to where minimal costs of produced or saved energy are ensured. With this approach, the demand for energy resources is provided at the cost-effective manner.
Development of digital and robotic agricultural production in the Russian Federation
Authors: Kashapov N F , Nafikov M M , Nafikov Mansur M , Nigmatzyanov A R
Published: August 2019

In recent decades, the rural population has increased dramatically. These circumstances necessitate the use of digital, intelligent and robotic. In the agro - industrial complex, these technologies are one of the most important functions of which is intellectual. It is a process to improve the quality of work.