bluuebunny/crossref_metadata_2025 huggingface dataset:
Empirical Models and Process Optimization for Prediction of Nutritional Parameters of Stored Cowpea Variety (IT96D-610K)
Authors: Sunmonu Musliu Olushola , Odewole Michael Mayokun , Oyeleke Ibukunolowa Omotola , Otitodun Grace Olufunke , Omobowale Mobolaji , Ogundare Moses Odunayo
Published: January 2019

This paper presents a study carried out to develop empirical models and process optimization for prediction of nutritional parameters of stored cowpea variety (IT96D-610K). Twelve small scale prototype silos made of two different materials (wooden and galvanised mild steel) were constructed and used in the storage of the cowpea for a 4-month period. Seven kilograms of cowpea at 9.88% moisture content admixed with DE having two different particle sizes (7.5 × 10−5 m and 9 × 10−5 m) and three different concentrations (0.0001 kg, 0.00005 kg and 0 kg) in varying combinations were loaded into each prototype silo structure. The control (zero/no concentration) was set without the use of DE in each of the wooden and galvanised mild steel structures, respectively. Temperature, relative humidity and moisture content within the storage structures were monitored. Nutritional parameters such as ash, crude protein, fat, crude fibre, and carbohydrate content were also measured alongside moisture. Significant differences (P <0.05) were observed between the control sample and treated samples. Six model equations using Essential Regression Software package were further generated to determine the relationship between input and output parameters, and were checked for adequacy and validity. The model equations developed were used to get the optimum values of output parameters which are: minimum moisture content (8.87%), minimum ash content (4.07%), maximum crude protein (22.86%), maximum fat (2.04%), maximum crude fibre (2.26%) and maximum carbohydrate (60.31%) of the stored cowpea at various conditions. Study results show that all the storage conditions had significant effects at P <0.05.
Deformation of Exposed Tool Parts for Crushing of Undesirable Advance Growth
Authors: Ťavodová Miroslava , Džupon Miroslav , Kalincová Daniela , Hnilicová Michaela
Published: January 2019

Tools for crushing of undesirable advance growth and mulching wood are subjected to heavy wear in operation with the need for their frequent replacement shortly after deployment. It is important to address the problem of their wear due to price of tools, as well as the time necessary for their replacement. Tool life is shortened because of deformation taking place due to the loss of wolfram-carbide (WC) tips, what is an undesirable phenomenon. Solutions for increasing the tool lifetimes were designed on the basis of analysis of wear mechanisms that cause this deformation. Furthermore, effect of deformed layer was evaluated by measuring hardness and microhardness. It was found that there was a strain hardening the surface due to cyclic loading. Size and extent of deformation of the entire tool with the loss of material on the functional part were documented using an optical scanning sensor system. Effect of the deformation on the material structure change, as well as topography and extent of surface area affected by abrasive wear under impact loads, were assessed by means of light and electron scanning microscopy. On the basis of these analyses, an option for increasing the lifetime of exposed areas on the tool by application of hardfacing to increase the tool wear resistance was proposed. Prerequisite for extending their work lifetime in the field is creation of a sufficient coarse layer or multiple layers of wear resistant material at specific tool areas.
Flow Analysis of Powell-Eyring Fluid Over an Off-Centered Porous Rotating Disk
Authors: Khan Najeeb Alam , Khan Sidra
Published: January 2019

This article presents the study of three-dimensional, stagnation flow of a Powell-Eyring fluid towards an off-centered rotating porous disk. A uniform injection or suction is applied through the surface of the disk. The Darcy law of porous disk for Powell-Eyring fluid is also obtained. The governing partial differential equations and their related boundary conditions are converted into ordinary differential equations by using a suitable similarity transformation. The analytical solution, of the system of equations is solved by using homotopy analysis method. The convergence region of the obtained solution is determined and plotted. The effects of rotational parameter, porosity of the medium, the characteristics of the non-Newtonian fluid and the suction or injection velocity on the velocity distributions is shown by graphical representation.
Dynamics of a spherical bubble rising in gravity, subject to traveling pressure disturbance
Authors: Riccardi Giorgio , De Bernardis Enrico
Published: January 2019

The motion of a spherical bubble rising in a gravitational field in presence of a traveling pressure step wave is investigated. Equations of motion for the bubble radius and center of mass are deduced and several sample cases are analysed by means of their numerical integration. The crucial role played by the traveling speed of the wave front and by the intensity of the pressure step are discussed. A first comparison with the axisymmetric dynamics is discussed.
About Supergraphs. Part II
Authors: Koch Sebastian
Published: January 2019

In the previous article [5] supergraphs and several specializations to formalize the process of drawing graphs were introduced. In this paper another such operation is formalized in Mizar [1], [2]: drawing a vertex and then immediately drawing edges connecting this vertex with a subset of the other vertices of the graph. In case the new vertex is joined with all vertices of a given graph G, this is known as the join of G and the trivial loopless graph K
1. While the join of two graphs is known and found in standard literature (like [9], [4], [8] and [3]), the operation discribed in this article is not.

Alongside the new operation a mode to reverse the directions of a subset of the edges of a graph is introduced. When all edge directions of a graph are reversed, this is commonly known as the converse of a (directed) graph.
On Algebras of Algorithms and Specifications over Uninterpreted Data
Authors: Ivanov Ievgen , Korniłowicz Artur , Nikitchenko Mykola
Published: January 2019

This paper continues formalization in Mizar [2, 1] of basic notions of the composition-nominative approach to program semantics [13] which was started in [8, 11].

The composition-nominative approach studies mathematical models of computer programs and data on various levels of abstraction and generality and provides tools for reasoning about their properties. Besides formalization of semantics of programs, certain elements of the composition-nominative approach were applied to abstract systems in a mathematical systems theory [4, 6, 7, 5, 3].

In the paper we introduce a definition of the notion of a binominative function over a set D understood as a partial function which maps elements of D to D. The sets of binominative functions and nominative predicates [11] over given sets form the carrier of the generalized Glushkov algorithmic algebra [14]. This algebra can be used to formalize algorithms which operate on various data structures (such as multidimensional arrays, lists, etc.) and reason about their properties.

We formalize the operations of this algebra (also called compositions) which are valid over uninterpretated data and which include among others the sequential composition, the prediction composition, the branching composition, the monotone Floyd-Hoare composition, and the cycle composition. The details on formalization of nominative data and the operations of the algorithmic algebra over them are described in [10, 12, 9].
On an Algorithmic Algebra over Simple-Named Complex-Valued Nominative Data
Authors: Ivanov Ievgen , Korniłowicz Artur , Nikitchenko Mykola
Published: January 2019

This paper continues formalization in the Mizar system [2, 1] of basic notions of the composition-nominative approach to program semantics [14] which was started in [8, 12, 10].

The composition-nominative approach studies mathematical models of computer programs and data on various levels of abstraction and generality and provides tools for reasoning about their properties. In particular, data in computer systems are modeled as nominative data [15]. Besides formalization of semantics of programs, certain elements of the composition-nominative approach were applied to abstract systems in a mathematical systems theory [4, 6, 7, 5, 3].

In the paper we give a formal definition of the notions of a binominative function over given sets of names and values (i.e. a partial function which maps simple-named complex-valued nominative data to such data) and a nominative predicate (a partial predicate on simple-named complex-valued nominative data). The sets of such binominative functions and nominative predicates form the carrier of the generalized Glushkov algorithmic algebra for simple-named complex-valued nominative data [15]. This algebra can be used to formalize algorithms which operate on various data structures (such as multidimensional arrays, lists, etc.) and reason about their properties.

In particular, we formalize the operations of this algebra which require a specification of a data domain and which include the existential quantifier, the assignment composition, the composition of superposition into a predicate, the composition of superposition into a binominative function, the name checking predicate. The details on formalization of nominative data and the operations of the algorithmic algebra over them are described in [11, 13, 9].
On Two Alternative Axiomatizations of Lattices by McKenzie and Sholander
Authors: Grabowski Adam , Sawicki Damian
Published: January 2019

The main result of the article is to prove formally that two sets of axioms, proposed by McKenzie and Sholander, axiomatize lattices and distributive lattices, respectively. In our Mizar article we used proof objects generated by Prover9. We continue the work started in [7], [21], and [13] of developing lattice theory as initialized in [22] as a formal counterpart of [11]. Complete formal proofs can be found in the Mizar source code of this article available in the Mizar Mathematical Library (MML).
Morphology and Pollen Chemistry of Several Bee Forage Taxa of Family Rosaceae from Garhwal Himalaya, Uttarakhand, India
Authors: Chaudhary Ekta , Tiwari Prabhawati , Uniyal Prem Lal
Published: January 2019

Pollen grains vary widely in pollen shape, size, aperture type and exine sculpture among the taxa and within the taxon, which make them taxonomically important. They also contain several proteins, lipids and vitamins which are essential for the growth and developments of developing bee larvae. Quantification of these chemical constituents is important for the dietary purposes of honey bees. The present study deals with the morphology and chemical constituents of hand-collected pollen from four bee forage plants viz. Prunus cerasoides D.Don, Prunus persica (L.) Batsch, Pyrus pashia Buch.-Ham. ex D.Don and Rosa brunonii Lindl. from Garhwal Himalaya, Uttarakhand. The family represents a homogenous group with a tricolporate pollen aperture type in all the studied taxa. Pollen shape varied from sub-prolate to prolate-spheroidal with a smaller pollen size observed in Pyrus pashia (26.53±0.30 µm polar view and 24.20±1.04 µm equatorial view) and a larger one in Prunus persica (38.39±3.06 µm polar view and 36.41±1.34 µm equatorial view). Exine sculpture was psilate to striato-reticulate. Maximum crude protein (68.33±0.14 mg/g) and starch content (32.98±0.67 mg/g) were recorded in pollen of Prunus cerasoides and maximum free amino acid (13.78±0.71 mg/g) in Pyrus pashia. All chemical constituents were found to be significant except the amino acids which were non-significant at the 0.05* level. Results showed that pollen grains of these Rosaceous members contained high amount of crude protein and phenolic content as a bee food source for brood, which makes this family economically important.
Melliferous Potential of Weedy Herbaceous Plants in Crop Fields of Romania from 1949 to 2012
Authors: Ion Nicoleta , Odoux Jean-François , Vaissière Bernard E.
Published: January 2019

Intensive farming systems have led to reduced food availability for honey bees which could be related to their current decline. A global tool is needed in order to assess the melliferous potential of plant species that could be developed as crops or companion plants in such systems. This review is based upon a survey from an extensive dataset collected in Romania over the last sixty years to record the nectar production of 153 weedy species. While there was considerable variation among these plants, we found that the melliferous potential of such large families as the Brassicaceae was low, that of the Apiaceae, Asteraceae and Fabaceae at an intermediate level, and that of the Lamiaceae and Boraginaceae the highest. High nectariferous potential was found to be an important feature of perennial ruderal species. Within the main flowering season, perennials provided much more nectar than annuals. These results could help to develop new agricultural practices more compatible with honey bee colony survival and honey production, as some of these plant species could provide a solution to enable agriculture and beekeeping to coexist in a sustainable way.
Mitochondrial DNA Variation of Feral Honey Bees (Apis mellifera L.) from Utah (USA)
Authors: Cleary Dylan , Szalanski Allen L. , Trammel Clinton , Williams Mary-Kate , Tripodi Amber , Downey Danielle
Published: January 2019

A study was conducted on the mitochondrial DNA genetic diversity of feral colonies and swarms of Apis mellifera from ten counties in Utah by sequencing the intergenic region of the cytochrome oxidase (COI-COII) gene region. A total of 20 haplotypes were found from 174 honey bee colony samples collected from 2008 to 2017. Samples belonged to the A (African) (48%); C (Eastern Europe) (43%); M (Western Europe) (4%); and O (Oriental) lineages (5%). Ten African A lineage haplotypes were observed with two unique to Utah among A lineage haplotypes recorded in the US. Haplotypes belonging to the A lineage were observed from six Utah counties located in the southern portion of the State, from elevations as high as 1357 m. All five C lineage haplotypes that were found have been observed from queen breeders in the US. Three haplotypes of the M lineage (n=7) and two of the O lineage (n=9) were also observed. This study provides evidence that honey bees of African descent are both common and diverse in wild populations of honey bees in southern Utah. The high levels of genetic diversity of A lineage honey bee colonies in Utah provide evidence that the lineage may have been established in Utah before the introduction of A lineage honey bees from Brazil to Texas in 1990.
Effects of Queen Cell Size and Caging Days of Mother Queen on Rearing Young Honey Bee Queens Apis mellifera L.
Authors: Wu Xiaobo , Zhou Linbin , Zou Chuibin , Zeng Zhijiang
Published: January 2019

This study aims to investigate the effect of queen cell size (9.4 mm, 9.6 mm, 9.8 mm and 10.0 mm) and mother queen caged time (0 day, 2 days and 4 days) on rearing young queens without grafting larvae. The birth weight, ovarian tubes, thorax length and width were significantly increased with the increasing diameter of queen cell size. The expression level of Vitellogenin (Vg) in young queen ovaries was also up-regulated with the increased queen cell size diameter. These results indicate that the queen cell size can strongly affect the rearing queen quality and reproductive ability. Moreover, the weight, length and width of laying eggs rose with the mother queen caging time, and young queens reared with the hatched larvae from these eggs were also increased in terms of birth weight, ovarian tubes, thorax length and width. Furthermore, the expression level of Vg in reared queen ovaries was also up-regulated with the caged time. These results reveal that the caged time of queens could significantly influence egg size and their relative queen quality.
Developing of predictive models for pneumonitis with forward variable selection and LASSO logistic model for breast cancer patients treated with 3D-CRT
Authors: Abdali Maede Hasan , Khoshgard Karim , Pashaki Abdolazim Sedighi
Published: January 2019

Purpose: To develop a multiple logistic regression model as normal tissue complication probability model by least absolute shrinkage and selection operator (LASSO) technique in breast cancer patients treated with three-dimensional conformal radiation therapy (3D-CRT), we focused on the changes of pulmonary function tests to achieve the optimal predictive parameters for the occurrence of symptomatic radiation pneumonitis (SRP).

Materials and methods: Dosimetric and spirometry data of 60 breast cancer patients were analyzed. Pulmonary function tests were done before RT, after completion of RT, 3, and 6 months after RT. Multiple logistic regression model was used to obtain the effective predictive parameters. Forward selection method was applied in NTCP model to determine the effective risk factors from obtained different parameters.

Results: Symptomatic radiation pneumonitis was observed in five patients. Significant changes in pulmonary parameters have been observed at six months after RT. The parameters of mean lung dose (MLD), bridge separation (BS), mean irradiated lung volume (ILVmean), and the percentage of the ipsilateral lung volume that received dose of 20 Gy (IV20) introduced as risk factors using the LASSO technique for SRP in a multiple normal tissue complication probability model in breast cancer patients treated with 3D-CRT. The BS, central lung distance (CLD) and ILV in tangential field have obtained as 23.5 (20.9-26.0) cm, 2.4 (1.5-3.3) cm, and 12.4 (10.6-14.3) % of lung volume in radiation field in patients without pulmonary complication, respectively.

Conclusion: The results showed that if BS, CLD, and ILV are more than 23 cm, 2 cm, and 12%, respectively, so incidence of SRP in the patients will be considerable. Our multiple NTCP LASSO model for breast cancer patients treated with 3D-CRT showed that in order to have minimum probability of SRP occurrence, parameters of BS, IV20, ILV and especially MLD would be kept in minimum levels. Considering dose-volume histogram, the mean lung dose factor is most important parameter which minimizing it in treatment planning, minimizes the probability of SRP and consequently improves the quality of life in breast cancer patients.
Rural Livelihood Strategies and Household Food Security of Farmers Surrounding Derba Cement Factory, Oromia Region, Ethiopia
Authors: Tesema Dereje , Berhanu Abeje
Published: January 2019

This study examined the livelihood strategies and food security situation of rural households around Derba Cement Factory by taking a randomly selected sample of 215 heads of farm households from three rural kebeles. A mixed research approach was employed to triangulate concurrently collected data through household survey, key informant interviews and focus group discussions. Informed by the sustainable rural livelihood framework, descriptive statistics were used to describe rural households’ livelihood strategies and challenges they faced while inferential statistics was employed to explain households’ food security situations with different livelihood combinations. While mixed farming was found to be the mainstay of the household economy, small-scale irrigation and extracting forest products were also used as supplementary economic activities. More than a half of the respondents (52.5%) reported at least one non-farm activity. Land shortage was identified as a major constraint to expand crop production and this was further aggravated by the activities (e.g. querying leading to displacement) of the Derba Cement Factory. This further affected household labor allocation and natural resources utilization. The result of household food (in) security access scale indicated that 59% of the respondents have experienced food access insecurity in 2016. However, respondents who combined agriculture and non-farm activities appeared relatively more food secure than those engaged in agriculture alone or in non-farm activity only. Overall, households with multiple livelihood strategies had diverse food entitlements to maintain sustainable food consumption. Yet, necessity induced diversification was found to affect food access security of households. This calls for inclusive policies and strategies that integrate rural non-farm activities to subsistence farming in order to assure sustainable livelihood in rural communities.
Lack of Association Between Rs2067474 Polymorphism in the Histamine Receptor H2 Gene and Gastric Cancer In Latvian Population
Authors: Moisejevs Georgijs , Gailīte Linda , Isajevs Sergejs , Ņikitina-Zaķe Liene , Kempa Inga , Jančiauskas Dainius , Ķikuste Ilze , Sīviņš Armands , Ancāns Guntis , Leja Mārcis
Published: January 2019

Histamine has an important role in the process of the gastric mucosa inflammation acting via histamine receptor H2 (encoded by the gene HRH2). Single nucleotide polymorphism of the enhancer element of HRH2 gene promoter rs2067474 (1018G>A)may be associated with changes of expression of the receptor. We attempted to clarify the association of this polymorphism with gastric cancer and/or atrophic gastritis in the Latvian (Caucasian) population. The study group consisted of 121 gastric cancer patients and 650 patients with no evidence of gastric neoplasia on upper gastrointestinal endoscopy. Genotyping for rs2067474 was performed with the TaqMan probe-based system using a commercially available probe for RT-PCR. The frequency of the A allele in the gastric cancer group was 0.41% and in the control group — 1.54% (p = 0.231). No significant differences were found comparing genotypes between gastric cancer versus control patients (OR = 0.236, CI95% = 0.030–1.896), patients with (n = 165) versus without (n = 485) gastric metaplastic lesions (OR = 0.854, CI95% = 0.288–2.540) and patients with (n = 297) and without (n = 353) gastric atrophic lesions (OR = 1.145, CI95% = 0.451–2.906). Our findings suggest that the HRH2 -1018G>A polymorphism (rs2067474) is neither associated with gastric cancer nor the grade of atrophic gastritis in the Latvian (Caucasian) population.
Effect of Knee Compression on Kinetic Variables During Vertical Jumps
Authors: Hyun Seung Hyun , Jin Hyeonseong
Published: January 2019

The purpose of this study was to determine how knee compression affected kinetic variables during vertical jumps. Ten healthy males, age 20s, performed a single maximum vertical jump and a ten-consecutive vertical jump trial without knee compression (control condition) and with knee compression. The collected data of ground reaction force were used to analyse the vertical jump height (VJH), peak active force (PAF), decay rate (DR), peak passive force (PPF), loading rate (LR), and the coefficient of variation (CV). During a maximum vertical jump, knee compression increased the magnitudes of DR, PAF, and VJH by 19.8%, 3.41%, and 4.87%, respectively, compared to those under a control condition. During ten consecutive vertical jumps, PAF and VJH showed statistically significant difference according to the repetition count. Also, the mean and CV of PAF, DR, LR, and VJH over consecutive jumps were higher in magnitude under knee compression condition than under the control condition.
Preface – Dedicated to Prof. Ing. Pavel Élesztős, Csc. and Prof. Ing. Stanislav Žiaran, Csc. on the Occasion of Their 70th Birthday
Authors: Roland Jančo , Radoslav Darula
Published: January 2019

The article deals with the contribution of Prof. Ing. Pavol Élesztős, CSc. in the field of engineering. He was born in 1948, studied and subsequently remained at the Faculty of Engineering at the Slovak University of Technology in Bratislava since 1968. Under his leadership 6 dissertation theses were defended in the study program of Applied Mechanics. He is the author of 1 monograph, co-author of 2 monographs, author of 30 reviewed scientific articles in journals, and over 250 original scientific papers published in domestic and foreign conference proceedings. Professor Élesztős is currently a Professor Emeritus and is known as a talented teacher.

This article is a celebration of prof. Ing. Stanislav Žiaran’s, CSc. contribution to the field of engineering. Born in 1948, since 1966 he studied and subsequently continued his academic career at the Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava. He has supervised 2 dissertation and 42 diploma theses, which were successfully defended in the study programs Applied mechanics and Mechatronics. Prof. Žiaran is the author to 5 monographs, 9 textbooks, 13 university textbooks, 6 manuals for the engineering industry and more than 290 original scientific papers published in domestic as well as international journals and conference proceedings. He has translated of 111 ISO and EN standards, 107 research reports for practice and he is the editor of 20 peer-reviewed scientific proceedings Noise and Vibration in Practice. He also presented 16 requested lectures at world congresses abroad. Prof. Žiaran is a gifted teacher of mechanics and his students appreciate his enthusiasm and knowledge he is sharing with them.
All-Pass Filters in the Systems of Active Vibration Control of Weakly-Damped Systems
Authors: Jiří Tůma , Pavel Šuránek , Stanislav Žiaran
Published: January 2019

The problem of active vibration control of weakly damped mechanical structures is potentially unstable modes of vibrations due to the positive feedback for some vibration modes. The paper will discuss the change of positive feedback on the negative one using all-pass discrete-time filters. These filters can be arranged in a cascade to stabilize many potentially unstable modes. The piezoelectric actuator as a source of force is used to damp vibration.
Tracking Filter Design for Predictive Maintenance of Jet Engine – Different Approaches and their Comparison
Authors: Jan Kunz , Martin Čala , Stanislav Pikula , Petr Beneš
Published: January 2019

The aim of this paper is to design, implement, test and compare several tracking filtration methods for predictive maintenance of a jet engine. Based on literature review multiple possible methods are described. Appropriate ones selected for further implementation are peak filtration, coherent demodulation, Vold-Kalman filtration and order analysis. Methods are tested to meet criteria set by an aircraft manufacturer and compared using simulated signals.
Effect of Oxidative Aging on the Engineering Properties of DGAMs
Authors: A.I. Al-Hadidy , Rashed Abdullah M.
Published: January 2019

Short and long term aging were conducted on the dense graded asphalt mixtures (DGAMs) containing 40-50 penetration grade asphalt cement binders. The short term oven aging (STOA) was conducted on loose mixtures at temperature of 135 °C for four hours and at temperature of 154 °C for two hours, whereas, the long term oven aging (LTOA) was conducted at temperature of 85 °C and at two periods of time between four and eight days. Marshall properties, tensile and compressive strength at 25 and 60°C, flexural strength at 0 and -10°C, cohesion at 60°C, tensile strength ratio, and index of retained strength were carried out on unaged and aged DGAM. A mechanistic-empirical design approach using BISAR program was adopted for estimating the improvement in service life of the pavement or reduction in thickness of DGAM and base layer for the same service life due to the aging of DGAM. The results showed that the STOA and LTOA: (1) increases resistance of DGAM against permanent deformation, stripping, and flexural strength; (2) increases traffic benefit ratio between 10 and 20%; (3) reduces the thickness of the surface layer between 8 and 14%; and (4) the base thickness reduces between 35% and 57%.
Volume Change and Cracks Behavior of Lime Treated Expansive Soils
Authors: Aldaood Abdulrahman , Khalil Amina , Alkiki Ibrahim , Alsaffar Madyan
Published: January 2019

This research work study the influence of cyclic wetting and drying on free swell potential of untreated and lime treated expansive clayey soils. Such a study is required to understand the behavior of these soils during wet-dry cycles. Two expansive soils (a polwhite bentonite and a kaolinite) with different plasticity indexes were used in this study. The soil samples were treated with different lime content in the order of (3, 5 and 7% by the dry weight of soil). The lime treated soil samples were cured at 20ºC for 28 and 180 days. The untreated and lime treated soil samples were subjected to four wet-dry cycles. Free swell potential and cracks propagation were studied during lime addition and wet-dry cycles. Results showed that, the free swell potential of untreated soil samples; in general; decreased with increasing wet-dry cycles, and all of the soil samples reached equilibrium after the second cycle. While the cracks propagation increased with these cycles, especially of bentonite soil samples. Larger cracks propagation has been observed in the bentonite soil samples. Lime addition enhanced the free swell potential values of  the two expansive soils and there was a drastic decrease in free swelling potential and cracks propagation of these soils. The beneficial effect of lime treatment to control the swelling values was partly lost by the first wet–dry cycles, and the free swell potential increased at the subsequent cycles.
Stability of arbitrarily switched discrete-time linear singular systems of index-1
Authors: Linh Pham Thi
Published: December 2018

In this paper, the index-1 notion for arbitrarily switched discrete-time linear singular systems (SDLS) has been introduced. Based on the Bohl exponents of SDLS as well as properties of associated positive switched systems, some necessary and sufficient conditions have been established for exponential stability.
Model Prioritisasi untuk Manajemen Portofolio Proyek Aplikasi di E-Government: Literatur Review
Authors: Sari Rita , Susanto Tony Dwi
Published: December 2018

Pengembangan teknologi yang cepat dapat digunakan untuk memenuhi permintaan yang meningkat untuk sebuah proyek, terutama di berbagai organisasi pemerintah umum seperti E-Government (layanan teknologi informasi berbasis elektronik yang digunakan oleh pemerintah) untuk menghadapi berbagai kendala sumber daya dan oleh karena itu harus membuat pilihan. Secara umum, dalam hal memilih antara lusinan dan ratusan alternatif untuk proyek, portofolio organisasi dan prioritasnya adalah masalah pengambilan keputusan multi-kriteria yang kompleks solusi yang membutuhkan teknik yang jelas, metode, dan definisi faktor untuk pengambilan keputusan dan prioritisasi pengambilan keputusan (decision-making). Pada studi literatur ini terdapat perumusan masalah yakni kriteria faktor model pembanding untuk model prioritisasi serta menemukan kerangka kerja dan metodologi yakni mengenai prioritisasi manajemen portfolio di bidang pemerintahan khususnya pada E-Government. Tinjauan pustaka dilakukan untuk mengidentifikasi karakteristik organisasi publik yang diusulkan untuk memulai penelitian tentang penerapan prioritas manajemen portofolio, serta metodologi dan praktik yang digunakan dan aspek lain yang relevan dari topik tersebut. Studi ini mengeksplorasi penggunaan dan teknik manajemen portofolio dari beberapa studi sebelumnya yang telah diuji dalam praktek dan metodologi prioritas proyek dalam layanan pemerintah umum. Hasil penelitian ini berkontribusi untuk memperkaya teori tentang teknik, metode, terutama prioritas manajemen proyek portofolio dalam kasus pemerintah.
Pembangunan Auto Backup SQL Database Server Menggunakan Raspberry Pi : Studi Kasus
Authors: Meidelfi Dwiny , Amnur Hidra , Novri Novri
Published: December 2018

Pembangunan auto backup SQL database server bertujuan untuk menutupi kelemahan pada database Server jurusan Teknologi Informasi Politeknik Negeri Padang. Server ini menanggulangi kemungkinan terjadinya kerusakan data, kehilangan data atau kerusakan media penyimpan database. Raspberry Pi adalah mikro komputer yang digunakan sebagai backup server.  Spesifikasi yang minim dapat digunakan secara optimal untuk membangun backups server karena tidak banyak sumber daya yang sia-sia. Backup database dilakukan dengan cara menggabungkan beberapa fungsi dari komponen sistem linux rsync dan crond Job. Rsync digunakan untuk proses pengiriman data dari database server ke backup server dan crond job digunakan untuk melakukan penjadwalan terhadap proses backup. Proses backup menggunakan komponen linux ini memiliki kemungkinan kegagalan backup yang minim karena rsync akan mengulangi setiap proses backup yang gagal atau kerusakan data hasil pengiriman
Ekstraksi Citra Digital Tulisan Mandarin Ke Dalam Terjemahan Tulisan Latin Bahasa Indonesia Dengan Stroke Extraction Dan Template Matching
Authors: Robert Robert , Ananda Ananda , Surya Ibnu
Published: December 2018

Bahasa merupakan sistem lambang bunyi arbitrer, yang digunakan oleh masyarakat untuk berkomunikasi. Bahasa Mandarin menduduki peringkat pertama bahasa yang paling banyak digunakan menurut survei dari Nationalencyklopedin, dan bahasa Mandarin menggunakan huruf yang disebut dengan Hanzi. Manusia memiliki berbagai cara dalam berkomunikasi, salah satunya dengan tulisan. Perangkat lunak dapat mengenali tulisan melalui gambar dengan menerapkan Pengolahan Citra Digital. Penelitian ini bertujuan untuk membangun aplikasi yang dapat mendeteksi Hanzi Mandarin dengan menerapkan Pengolahan Citra Digital. Pengolahan Citra Digital merujuk pada pemrosesan gambar dua dimensi dengan menggunakan komputer. Metode Pengolahan Citra dengan Stroke Extraction dan Template Matching diimplementasikan sebagai solusi masalah. Stroke Extraction digunakan untuk melakukan ekstraksi goresan dasar (pi hua) pada citra Hanzi Mandarin dan kemudian dikenali dengan menggunakan Template Matching. Aplikasi diuji dengan Receiver Operating Characteristic sehingga didapat digambarkan sebuah kurva yang dapat membantu proses analisis. Berdasarkan kurva ROC yang tergambarkan metode Stroke Extraction masih perlu pengembangan karena rendahnya tingkat keberhasilan dalam menghitung goresan. Aplikasi yang dibangun berhasil melakukan ekstraksi Hanzi Mandarin tulisan tangan maupun cetak, dan diterjemahkan ke bahasa Indonesia dengan tingkat akurasi 76,47%. Disimpulkan bahwa metode Stroke Extraction dan Template Matching cukup efisien dalam memproses citra digital Hanzi Mandarin untuk diterjemahkan ke tulisan bahasa Indonesia.
PENGARUH MYOB TEST CLINIC TERHADAP KOMPETENSI MAHASISWA
Authors: Suharyono Suharyono
Published: January 2019

Penelitian ini bertujuan untuk membuktikan pengaruh pelaksanaan MYOB test clinic terhadap peningkatan kompetensi mahasiswa pada Program Studi D4 Akuntansi Keuangan Publik.  Data yang digunakan dalam penelitian ini adalah data primer yang diperoleh dari penyebaran kuesioner.  Responden penelitian ini adalah mahasiswa Prodi D4 Akuntansi Keuangan Publik yang berjumlah 52 responden.  Metode analisis data yang digunakan adalah analisis statistik regresi berganda.  Berdasarkan hasil evaluasi pelaksanaan MYOB test clinic, nilai rata-rata yang diperoleh terjadi peningkatan yaitu dari sebelumnya 48 menjadi 74 atau meningkat 52%.  Hasil penelitian menunjukkan bahwa variabel metode, materi, instruktur MYOB test clinic tidak berpengaruh terhadap kompetensi mahasiswa pada Program Studi D4 Akuntansi Keuangan Publik. Kontribusi pengaruh variabel metode, materi, dan instruktur MYOB test clinic terhadap kompetensi mahasiswa hanya sebesar 1,9% dan sisanya sebesar 98,1% dipengaruhi oleh variabel-variabel yang lain.
PRINSIP DUALITAS DAN AKUNTANSI SUMBER DAYA MANUSIA DALAM KEBERHASILAN PENGELOLAAN DANA DESA
Authors: Kurniawan Saputra Komang Adi
Published: January 2019

Penelitian ini bertujuan untuk menguji pengaruh dualitas pemerintahan desa dan implementasi akuntansi sumber daya manusia terhadap keberhasilan pengelolaan dana desa. Digunakan uji Regresi Linier Berganda model OLS (Ordinary Least Square) untuk menganalisis data penelitian. Sebelumnya dilakukan uji validitas danreliabilitas atas instrumen yang digunakan. Penelitian ini menggunakan ujiasumsi klasik yang meliputi uji multikolinearitas, uji heteroskedastisitas, dan ujinormalitas. Desain penelitian yang digunakan dalam penelitian ini adalah desain penelitian survei dengan kuesioner. Populasi dalam penelitian ini adalah desa-desa penerima dana desa di Porvinsi Bali yang jumlahnya sebanyak 636 desa. Hasil penelitian adalah dualitas pemerintahan desa dan implementasi akuntansi sumber daya manusia memiliki pengaruh yang signifikan terhadap keberhasilan pengelolaan dana desa.
Experimental study of water droplet break up in water in oil dispersions using an apparatus that produces localized pressure drops
Authors: Silva Fabricio S. , Medronho Ricardo A. , Barca Luiz Fernando
Published: January 2019

Oil production facilities have choke/control valves to control production and protect downstream equipment against over pressurization. This process is responsible for droplets break up and the formation of emulsions which are difficult to treat. An experimental study of water in oil dispersion droplets break up in localized pressure drop is presented. To accomplish that, an apparatus simulating a gate valve was constructed. Droplet Size Distribution (DSD) was measured by laser light scattering. Oil physical properties were controlled and three different break up models were compared with the experimental results. All experimental maximum diameters (dmax) were above Kolmogorov length scale. The results show that dmax decreases with increase of energy dissipation rate (ε) according to the relation dmax ∝ ε−0.42. The Hinze (1955, AIChE J.1, 3, 289–295) model failed to predict the experimental results, although, it was able to adjust reasonably well those points when the original proportional constant was changed. It was observed that increasing the dispersed phase concentration increases dmax due to turbulence suppression and/or coalescence phenomenon. Turbulent viscous break up model gave fairly good prediction.
Türkiye'de Ücret Eşitsizliğinin Analizi
Authors: ACUN Serdar
Published: December 2018

Ücret
kavramına ilişkin tartışmalar iktisat yazınında sürekli yer bulmuştur. Ücretin
nasıl ortaya çıktığı, nasıl belirlendiği ve denge noktasının ne olduğu tartışmaların
merkezini oluşturmuştur. Ücret ayrıca elde edilen toplam gelirler içinde önemli
yer tutmakta bu durum da önemini daha da artırmaktadır. 2015 yılı gelir ve yaşam
koşulu verilerine göre Türkiye’de ücret, maaş ve yevmiye gelirleri toplam
gelirler içinde %52,5’lik orana sahiptir. Bu durum ise ücrette yaşanan eşitsizliğin
gelir eşitsizliğine etkisini artırmaktadır. 2008 kriziyle beraber artan eşitsizlik
tartışmaları Türkiye’de ücretin belirleyenleri ve ücret eşitsizliği yeniden ele
alınmasını zorunlu kılmaktadır. Özellikle emeğin niteliğinin ücret üzerine
etkisini temel alan insan sermayesi modeli ücret eşitsizliğinin analizi açısından
önemli bir yer tutmaktadır. Bu çalışmada Türkiye İstatistik Kurumu (TÜİK)’nun
hane halkı işgücü anketi mikro veri seti kullanılmıştır. Temel insan sermayesi
modeli olan eğitim ve deneyim değişkenlerinin yanı sıra çalışılan işteki
esneklik, çalışılan sektör ile çalışanın demografik bazı özellikleri eklenerek
model genişletilmiştir. Çalışma sonucunda atipik çalışma ve cinsiyet gibi faktörlerin
ücret farklılığını artırdığı sonucuna ulaşılmıştır.
Alterações da autoestima em pacientes oncológicos submetidos ao tratamento quimioterápico
Authors: Oliveira Francisco Braz Milanez , Silva Bárbara Mônica Lopes e , Soares Bianca Santos , Sousa Brunna Matos , Silva Chrisllayne Oliveira da , Barbosa Francilene Pinho , Silva Francimar Ribeiro da , Sousa Priscila Pontes Araújo , Filho Raimundo Nonato dos Santos , Nascimento Thalyta D’Paula Dantas do , Silva Wenderson Costa da , Maranhão Franklin Roosevelt Oliveira , Rocha Renan Rhonalty , Paz Rita Maria Pereira da , Oliveira Tatyanne Maria Pereira de
Published: December 2018

Objetivo: Analisar as produções científicas sobre a avaliação da autoestima de pacientes oncológicos, submetidos ao tratamento quimioterápico. Metodologia: Trata-se de uma revisão integrativa da literatura, onde foi formulada a seguinte questão PICo (não-clínica): Quais as evidências  cientificas apontam as mudanças na autoestima dos pacientes oncológicos submetidos ao tratamento quimioterápico? Resultados: As alterações na autoestima em pacientes oncológicos estão relacionadas a efeitos adversos da quimioterapia, como a alopecia, e ao estado psicológico baixo associado à depressão, comprometimento familiar, isolamento social, estresse, e alguns sintomas como náuseas, vômitos, anorexia, debilidade física, que provocam sentimento de impotência e desesperança afetando diretamente na autoestima. A produção dos bundles de intervenção propôs estimular a pratica de atividade física e outras atividades de lazer em pacientes oncológicos, oferecer um programa de apoio psicossocial integrado para os pacientes e seus acompanhantes no enfrentamento da doença e mudança na autoestima, Orientar sobre o surgimento da alopecia durante a quimioterapia, e os efeitos negativos na autoimagem, Promover atividades de apoio ao retorno ao trabalho e aconselhamento ocupacional em pacientes oncológicos, Desenvolver atividades de embelezamento e do uso de adornos em pacientes submetidos a quimioterapia. Considerações Finais: O tratamento quimioterapico pode ser considerado um fator determinante nas alterações da autoestima, pois possibilita a ocorrência de inúmeros impactos na vida do paciente oncológico, tais coomo, fisíco, emocionais e sociais.
Lesão Central de Células Gigantes – Relato de Caso
Authors: Silva Wérica Suzana de Almeida , Moreira Geane , Marques Isabella Pereira , Silva Ângelo Fonseca
Published: December 2018

Objetivo: Relatar um caso clínico de uma lesão central de Células gigantes em um paciente do gênero feminino, 10 anos de idade, leucoderma, método diagnóstico e tratamento de escolha. Relato de Caso: Paciente do gênero feminino, leucoderma, 10anos de idade apresentou-se em nossos serviços clínicos com aumento de volume unilateral com expansação sintomática durante 7 meses, ao exame radiográfico observou-se lesão radiolúcida, multilocular, foi realizado biopsia incisional para exame histopatológico o qual resultou-se em lesão central de células gigantes, porem para diagnóstico conclusivo necessita-se de exames complementares para descartar outras hipóteses diagnósticas, a paciente encontra-se em tratamento com aplicações quinzenais de Triancinolona .Considerações finais: o caso relatado e publicações levantadas trazem à luz a discussão da terapêutica de uma situação complexa que é o acometimento de uma lesão agressiva em uma paciente de dez anos, diagnósticos diferenciais levantados e escolhas de tratamento adequado.
Desafios na utilização de Teleconsultorias no Serviço de Atenção Primária à Saúde de municípios remotos da microrregião de Januária, Norte de Minas Gerais, Brasil
Authors: Ferreira Suelen dos Santos , Diaz Pasionaria Rosa Ramos Ruiz , Feitosa Wesley Gomes , Silva Elder Oliveira da
Published: December 2018

Objetivo: Descrever os aspectos positivos e negativos na implementação do Sistema de Teleconsultorias do serviço de APS de municípios remotos localizados na microrregião de Januária, Norte de Minas Gerais, Brasil. Método: Estudo exploratório descritivo, prospectivo e qualitativo. Foi aplicado um questionário estruturado, com roteiro previamente estabelecido, a 42 profissionais de saúde que atuam em equipes de Saúde da Família e Saúde Bucal. Resultados: Ser um sistema de baixa complexidade e de grande utilidade foi o principal aspecto positivo relatado pela maioria dos profissionais, além de considerar que a Teleconsultoria é benéfica para os pacientes, reduzindo o número de encaminhamentos desnecessários. Os aspectos negativos encontrados estão relacionados à falta de treinamento para uso do sistema, rotatividade profissional, problemas com a estrutura física/conectividade e pouco interesse por parte dos profissionais. Conclusão: Espera-se que os resultados aqui apresentados contribuam para a difusão da Teleconsultoria como mecanismo de apoio tecnológico aos serviços de saúde do país.
A influência do estado nutricional durante o período gestacional e sua correlação no peso do recém-nascido
Authors: Freitas Hidelânia Batista Monteiro de , Lima Rafael Ferreira , Targino Mayra Vieira Pereira , Targino Ayssa Letícia Vieira Pereira , Nascimento Ailton Targino do , Vasconcelos Larruama Priscylla Fernandes de , Araújo Débora Gomes de Sousa , Formiga Walnara Arnaud Moura , Soares Jobyson Gervázio , Fernandes Íngrid Raquel Martins Gomes , Calisto Dárcio Romário de Lucena , Viana Thiago Alves
Published: December 2018

Objetivo: Investigar a influência do estado nutricional durante o período gestacional correlacionado ao peso do recém-nascido. Métodos: A presente pesquisa possuiu caráter exploratório descritivo com abordagem quantitativa. O estudo foi realizado na Unidade Básica de Saúde (UBS) no Município de São Bento – PB. A pesquisa foi realizada com 24 prontuários de gestantes atendidas na UBS, não sendo necessário utilizar a totalidade dos prontuários. Resultados: Foi evidenciado o IMC da primeira consulta do pré-natal com 12,5% das gestantes em estado de desnutrição, 37,5% em eutrofia e 50% com excesso de peso e obesidade. O IMC relacionado ao final da gestação, foi verificado uma progressão de 75% para o excesso de peso e obesidade. Quanto ao peso dos recém-nascidos foi observado, que 29,2% apresentavam peso insatisfatório e baixo peso, com predominância de peso adequado 70,8%. Conclusão: Diante dos resultados, esse fato mostrou a importância do profissional de nutrição durante o acompanhamento pré-natal, para uma gestação mais saudável tanto para a mãe como para o bebê, visando um parto mais seguro em relação a complicações.
Atividade Antibacteriana do Extrato Etanólico Bruto da Gossypium hirsutum L. contra Cepas de Klebsiella pneumoniae e Escherichia coli
Authors: Delgado Letícia Ataíde , Siqueira Daniele de Sousa , Ferreira José Lucas Soares , Cavalcante Joyce Natielle Miranda , Silva Rebeca Cícera Mendes de Oliveira , Filgueira Rafael Cartaxo , Bezerra Raquel Vieira , Oliveira Heloisa Mara Batista Fernandes de , Almeida Maria das Graças Veloso Marinho de , Filho Abrahão Alves de Oliveira
Published: December 2018

Objetivo: O presente estudo objetiva avaliar in vitro a ação antibacteriana do extrato da G. hirsutum L. contra Escherichia coli e Klebsiella pneumoniae. Métodos: Para a avaliação da atividade antibacteriana e determinação da Concentração Inibitória Mínima (CIMtilizou-se a técnica de microdiluição em placa de 96 poços. Em uma placa de 96 cavidades, foi adicionado caldo Mueller Hinton e o extrato etanólico bruto em estudo nas diferentes concentrações. O ensaio foi realizado em duplicata. As placas foram incubadas a 37ºC durante 24-48 horas. A CIM foi determinada como a menor concentração do extrato que inibir o crescimento visível do microorganismo. Após a leitura da CIM, alíquotas de 20 μL foram retiradas de cada poço que não apresentar crescimento bacteriano, e transferidas para poços de uma nova placa, desprovidas de qualquer antimicrobiano. As placas inoculadas foram assepticamente fechadas e incubadas a 35 °C, e as Concentrações Bactericidas Mínimas (CBMsram registradas após 48 h. A CBM foi definida como a menor concentração do extrato que resultar em inibição visível do crescimento do microorganismo. Resultados: Observou-se que o extrato em estudo apresentou CIM50 para E. coli e K. pneumoniae, respectivamente, igual à 1024 μg/mL e maior que 1024 μg/mL e a CBM50 da E. coli foi maior que 1024 μg/mL. Conclusão: Diante dos resultados obtidos pode-se afirmar que o extrato possui efeito moderado antibacteriano frente às cepas de K. peneumoniae e E. coli.