bluuebunny/crossref_metadata_2025 huggingface dataset:
Intravesical Oxybutynin for Urgent Bladder Rescue in a Newborn with Posterior Urethral Valves
Authors: Molina Caballero Ada , Pérez Martínez Alberto , Goñi Orayen Concepción , Sierra Colomina Gemma , Lavilla Oiz Ana , Armendariz Cuevas Yolanda
Published: November 2019

Posterior urethral valves are the most common cause of bladder outlet obstruction in male newborns. Initial catheter drainage alleviates the urethral obstruction before definitive management by valve ablation. Newborns with posterior urethral valves often present with hypercontractile bladders that may inhibit upper tract drainage despite bladder catheterization. Anticholinergic agents are commonly used to treat detrusor hyperactivity, with oxybutynin being the most commonly used. We report the first case of a newborn with posterior urethral valves and ureterovesical junction obstruction caused by detrusor hypertrophy who underwent urgent intravesical instillation of oxybutynin at high doses in an attempt to avoid a diversion procedure.
Comparison of Insall–Salvati Index and Its Modification in Normal Dogs from Four Different Body Weight Groups
Authors: Ocal Mehmet K. , Seyrek-Intas Deniz , Cagatay Soner
Published: November 2019

Objective The objectives of this study were to record the values of Insall-Salvati (IS) index and its modification in dogs classified into four different body weight groups and to determine whether these index values were influenced by sex.

Study Design Bilateral mediolateral radiographs of 86 dogs were obtained. The dogs were classified into four different body weight groups: small, medium, large and giant. The patellar length (PL), caudal and cranial patellar ligament lengths (LLca and LLcr), stifle angle and superimposition of the femoral condyles were measured on the radiographs. The IS index and its modification (LLcr:PL) were calculated by dividing LLca or LLcr by the PL respectively. Spearman's correlation test and analysis of variance were used for statistical analyses.

Results The sex of the dog and the presence of enthesophytes at the apex of the patella were two influential factors for the IS and LLcr:PL values. The mean IS values were 1.60 ± 0.28 in small dogs, 1.73 ± 0.27 in medium dogs, 1.82 ± 0.21 in large dogs and 1.97 ± 0.13 in giant dogs. The mean LLcr:PL for the same groups were 2.05 ± 0.23, 2.13 ± 0.19, 2.23 ± 0.21 and 2.27 ± 0.16 respectively.

Conclusion The reference intervals for the IS index were 1.04 to 2.16 in the small dogs, 1.19 to 2.27 in the medium dogs, 1.40 to 2.24 in the large dogs and 1.71 to 2.23 in the giant dogs. The reference intervals for the LLcr:PL index were 1.59 to 2.51 in the small dogs, 1.75 to 2.51 in the medium dogs, 1.81 to 2.65 in the large dogs and 1.95 to 2.59 in the giant dogs. Dogs with values exceeding these reference intervals have patella alta and those with values below these intervals have patella baja.
Antenatal Fetal Adrenal Measurements at 22 to 30 Weeks' Gestation, Fetal Growth Restriction, and Perinatal Morbidity
Authors: Blue Nathan R. , Hoffman Matthew , Allshouse Amanda A. , Grobman William A. , Simhan Hyagriv N. , Turan Ozhan M. , Parry Samuel , Chung Judith H. , Reddy Uma , Haas David M. , Myers Stephen , Mercer Brian , Saade George R. , Silver Robert M.
Published: November 2019

Objective Our objective was to test the association of fetal adrenal size with perinatal morbidity among fetuses with fetal growth restriction (FGR; estimated fetal weight [EFW] < 10th percentile).

Study Design This was a secondary analysis of the Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-to-be (nuMoM2b) adrenal study, which measured fetal adrenal gland size at 22 to 30 weeks' gestation. We analyzed the transverse adrenal area (TAA) and fetal zone area (absolute measurements and corrected for fetal size) and the ratio of the fetal zone area to the total transverse area using a composite perinatal outcome of stillbirth, neonatal intensive care unit admission, respiratory distress syndrome, necrotizing enterocolitis, retinopathy of prematurity, sepsis, mechanical ventilation, seizure, or death. Among fetuses with FGR, adrenal measurements were compared between those that did and did not experience the composite perinatal outcome.

Results There were 1,709 eligible neonates. Seven percent (n = 120) were diagnosed with FGR at the time of adrenal measurement, and 14.7% (n = 251) experienced perinatal morbidity. EFW-corrected and absolute adrenal measurements were similar among fetuses with and without FGR as well as among those who did and did not experience morbidity. The area under the curve for corrected TAA was 0.52 (95% confidence interval 0.38–0.67).

Conclusion In our cohort, adrenal size was not associated with risk of morbidity among fetuses with FGR.
A New Scoring System for the Assessment of Neonatal Abstinence Syndrome
Authors: Kocherlakota Prabhakar , Qian Edward C. , Patel Vishwas C. , Mandru Cosmina , Vilar Rolando E. , Alpan Gad , La Gamma Edmund F.
Published: November 2019

Objective This study aimed to evaluate the concordance of a new scoring system for neonatal abstinence syndrome (NAS) and NAS scores to the traditional Modified Finnegan Neonatal Abstinence Scoring Tool (M-FNAST) score. The NAS score is based on the physiology of withdrawal, with equal emphasis on behavior, and neurological signs.

Study Design The NAS scores for a control group of 202 healthy, term neonates were compared with those for 45 term neonates with NAS. The NAS and M-FNAST scores obtained simultaneously in 45 term neonates with NAS were compared using correlation, linear regression, and receiver operating characteristic curve analysis to determine the validity, reliability, and specificity of the NAS scores.

Results The association between the NAS and M-FNAST scores was high (Spearman's correlation, 83%; linear regression, 83%), with an area under the curve of the NAS score of 1.00 (p < 0.01). A cut-off NAS score ≥4 identified NAS neonates with a sensitivity of 100% and specificity of 96%. The values of intraclass correlation, interrater agreement, and Cronbach's α were 0.63, 0.88, and 0.63, respectively.

Conclusion The new NAS scoring system is valid, reliable, physiologically based, and correlates closely with the M-FNAST score. The NAS scores may require further validation before its use in clinical practice.
The Effect of Intramuscular 17α-Hydroxyprogesterone in Women Screened for Shortened Cervical Length
Authors: Wood S. Lindsay , Williams Bria N. , Szychowski Jeff M. , Owen John
Published: November 2019

Objective This article assesses the effect of weekly intramuscular 17α-hydroxyprogesterone caproate (17P) on midtrimester cervical length (CL) in patients with prior spontaneous preterm birth.

Study Design Retrospective cohort study of all singletons that underwent CL screening at a single institution from 2011 to 2016. The timing of 17P exposure was assessed. The primary outcome was shortest midtrimester CL. Secondary outcomes included gestational age at delivery, rate of short cervix, cerclage, preterm labor admission, and preterm premature rupture of the membranes (PROM). Multivariable regression analysis was used to model the relationship between 17P exposure and shortest CL, controlling for selected covariates.

Results Of 409 women who underwent screening, 211 received and 198 did not receive 17P prior to the last CL. Rates of short cervix and cerclage were similar between groups. After adjusting for covariates, the shortest CL was significantly shorter in the 17P group. In a secondary analysis, those who received any 17P (n = 293) versus those who did not (n = 116) had higher rates of preterm PROM, preterm labor admission, and cerclage. After controlling for covariates, gestational age at delivery was significantly lower in those receiving 17P.

Conclusion In high-risk patients undergoing CL screening for ultrasound-indicated cerclage, 17P did not prevent midtrimester cervical shortening or prolong gestation.
Non-uniform continuous dependence on initial data of solutions to the Euler-Poincaré system
Authors: Li Jinlu , Dai Li , Zhu Weipeng
Published: November 2019

In this paper, we investigate the continuous dependence on initial data of solutions to the Euler-Poincaré system. By constructing a sequence of approximate solutions and calculating the error terms, we show that the data-to-solution map is not uniformly continuous in Sobolev space Hs(Rd) for s>1+d2.
Development of a novel cross-axis countercurrent chromatographic instrument with six separation columns: Design, dynamics, optimization, prototyping, and experiment
Authors: Zhao Yongjie , Zhang Xiping , Luo Tiexuan , Zou Dejin , Yuan Haihua , Liu Zhicong , Liu Yang
Published: November 2019

This paper presents the development of a novel cross-axis countercurrent chromatographic instrument (CCCI) with six separation columns, including design, dynamics, optimization, prototype construction, and experimental validation. The conceptual design and the structural design of the cross-axis CCCI are performed while considering the requirements for the separation operation and design. The dynamic analysis is carried out in order to guarantee the local balance and the global balance for the CCCI. The relationship between the mechanical structure parameters and partition efficiency is investigated by analyzing the effect of mechanical structure parameters on the centrifugal force field. By virtue of the modal analysis of the mechanical structure, the critical speed and the weak link of the CCCI are achieved. Aiming at the problem of the weak link, the structural optimization is done. The presented CCCI has six separation columns distributed around the central revolution axis, and it has more separation columns than that of the existing chromatographic instrument. The CCCI has an axial symmetry structure in the three-dimensional space. Thus it can have better dynamics stability than the CCCI having less separation columns with a symmetry structure in the plane. A physical prototype is built, and then the partition efficiency and its effect factors are tested by the single experimental variable method. The results show that the CCCI runs smoothly and has a good retention rate of stationary phase. It is also proved that the developed CCCI has a good partition efficiency on bovine serum albumin and lysozyme.
Bottleneck and selection in the germline and maternal age influence transmission of mitochondrial DNA in human pedigrees
Authors: Zaidi Arslan A. , Wilton Peter R. , Su Marcia Shu-Wei , Paul Ian M. , Arbeithuber Barbara , Anthony Kate , Nekrutenko Anton , Nielsen Rasmus , Makova Kateryna D.
Published: November 2019

Heteroplasmy—the presence of multiple mitochondrial DNA (mtDNA) haplotypes in an individual—can lead to numerous mitochondrial diseases. The presentation of such diseases depends on the frequency of the heteroplasmic variant in tissues, which, in turn, depends on the dynamics of mtDNA transmissions during germline and somatic development. Thus, understanding and predicting these dynamics between generations and within individuals is medically relevant. Here, we study patterns of heteroplasmy in 2 tissues from each of 345 humans in 96 multigenerational families, each with, at least, 2 siblings (a total of 249 mother–child transmissions). This experimental design has allowed us to estimate the timing of mtDNA mutations, drift, and selection with unprecedented precision. Our results are remarkably concordant between 2 complementary population-genetic approaches. We find evidence for a severe germline bottleneck (7–10 mtDNA segregating units) that occurs independently in different oocyte lineages from the same mother, while somatic bottlenecks are less severe. We demonstrate that divergence between mother and offspring increases with the mother’s age at childbirth, likely due to continued drift of heteroplasmy frequencies in oocytes under meiotic arrest. We show that this period is also accompanied by mutation accumulation leading to more de novo mutations in children born to older mothers. We show that heteroplasmic variants at intermediate frequencies can segregate for many generations in the human population, despite the strong germline bottleneck. We show that selection acts during germline development to keep the frequency of putatively deleterious variants from rising. Our findings have important applications for clinical genetics and genetic counseling.
QTY code designed thermostable and water-soluble chimeric chemokine receptors with tunable ligand affinity
Authors: Qing Rui , Han Qiuyi , Skuhersky Michael , Chung Haeyoon , Badr Myriam , Schubert Thomas , Zhang Shuguang
Published: November 2019

Significance

There are 20 chemokine receptors that bind their respective chemokines. It is not currently understood how these structurally similar receptors distinguish their ligands; namely, how EC loops and transmembrane domains of these receptors are involved in ligand-binding activities. With the detergent-free GPCRs, we show that it is now possible to design and produce chimeric receptor proteins to study ligand-binding mechanisms. We exchanged the N terminus and 3 EC loops of natural chemokine receptor CXCR4 to append them onto the 7TM α-helices of detergent-free variant CCR5
QTY
, and systematically studied which ligands it binds. These designer chimeric receptors provide insight into how natural receptors bind their respective ligands. These chimeric receptors with tunable functionality may have applications for bioelectronics sensing devices.
Sleep–wake-driven and circadian contributions to daily rhythms in gene expression and chromatin accessibility in the murine cortex
Authors: Hor Charlotte N. , Yeung Jake , Jan Maxime , Emmenegger Yann , Hubbard Jeffrey , Xenarios Ioannis , Naef Felix , Franken Paul
Published: November 2019

The timing and duration of sleep results from the interaction between a homeostatic sleep–wake-driven process and a periodic circadian process, and involves changes in gene regulation and expression. Unraveling the contributions of both processes and their interaction to transcriptional and epigenomic regulatory dynamics requires sampling over time under conditions of unperturbed and perturbed sleep. We profiled mRNA expression and chromatin accessibility in the cerebral cortex of mice over a 3-d period, including a 6-h sleep deprivation (SD) on day 2. We used mathematical modeling to integrate time series of mRNA expression data with sleep–wake history, which established that a large proportion of rhythmic genes are governed by the homeostatic process with varying degrees of interaction with the circadian process, sometimes working in opposition. Remarkably, SD caused long-term effects on gene-expression dynamics, outlasting phenotypic recovery, most strikingly illustrated by a damped oscillation of most core clock genes, includingArntl/Bmal1, suggesting that enforced wakefulness directly impacts the molecular clock machinery. Chromatin accessibility proved highly plastic and dynamically affected by SD. Dynamics in distal regions, rather than promoters, correlated with mRNA expression, implying that changes in expression result from constitutively accessible promoters under the influence of enhancers or repressors. Serum response factor (SRF) was predicted as a transcriptional regulator driving immediate response, suggesting that SRF activity mirrors the build-up and release of sleep pressure. Our results demonstrate that a single, short SD has long-term aftereffects at the genomic regulatory level and highlights the importance of the sleep–wake distribution to diurnal rhythmicity and circadian processes.
Growth dynamics of the
Arabidopsis
fruit is mediated by cell expansion
Authors: Ripoll Juan-José , Zhu Mingyuan , Brocke Stephanie , Hon Cindy T. , Yanofsky Martin F. , Boudaoud Arezki , Roeder Adrienne H. K.
Published: November 2019

Significance

Fruit are the harvested product of many crops and their importance in yield and global food supply is indisputable. Fruit size (growth), shape, and seed dispersal strategies vary markedly in different plant species, and their clear understanding should facilitate improvements in agricultural production. Here we have mapped the cellular growth of the
Arabidopsis
fruit (seedpod) after fertilization, and also delineated and modeled how seed-derived signaling cascades impinge upon fruit elongation. We have found that fertilization is the developmental switch that transitions fruit from cell division to cell expansion, which is tightly synchronized with seed development inside the fruit. Our study lays the groundwork to facilitate strategies for crop engineering to further increase their agroeconomic value.
Can a contemporary dietary assessment tool or wearable technology accurately assess the energy intake of professional young rugby league players? A doubly labelled water validation study
Authors: Costello Nessan , Deighton Kevin , Dalton‐Barron Nick , Whitehead Sarah , Preston Thomas , Jones Ben
Published: November 2019

Accurate quantification of energy intake is imperative in athletes; however traditional dietary assessment tools are frequently inaccurate. Therefore, this study investigated the validity of a contemporary dietary assessment tool or wearable technology to determine the total energy intake (TEI) of professional young athletes. The TEI of eight professional young male rugby league players was determined by three methods; Snap‐N‐Send, SenseWear Armbands (SWA) combined with metabolic power and doubly labelled water (DLW; intake‐balance method; criterion) across a combined ten‐day pre‐season and seven‐day in‐season period. Changes in fasted body mass were recorded, alongside changes in body composition via isotopic dilution and a validated energy density equation. Energy intake was calculated via the intake‐balance method. Snap‐N‐Send non‐significantly over‐reported pre‐season and in‐season energy intake by 0.21 (2.37) MJ.day−1(p= 0.833) and 0.51 (1.73) MJ.day−1(p= 0.464), respectively. This represented atrivialandsmallstandardised mean bias, andvery largeandlargetypical error. SenseWear Armbands and metabolic power significantly under‐reported pre‐season and in‐season TEI by 3.51 (2.42) MJ.day−1(p= 0.017) and 2.18 (1.85) MJ.day−1(p= 0.021), respectively. This represents alargeandmoderatestandardised mean bias, andvery largeandvery largetypical error. There was amost likelylarger daily error reported by SWA and metabolic power than Snap‐N‐Send across pre‐season (3.30 (2.45) MJ.day−1; ES = 1.26 ± 0.68;p= 0.014) and in‐season periods (1.67 (2.00) MJ.day−1; ES = 1.27 ± 0.70;p= 0.012). This study demonstrates the enhanced validity of Snap‐N‐Send for assessing athlete TEI over combined wearable technology, although caution is required when determining the individual TEIs of athletes via Snap‐N‐Send.
An entropic Landweber method for linear ill-posed problems
Authors: Burger M , Resmerita E , Benning M
Published: November 2019

The aim of this paper is to investigate the use of a Landweber-type method involving the Shannon entropy for the regularization of linear ill-posed problems. We derive a closed form solution for the iterates and analyze their convergence behaviour both in a case of reconstructing general nonnegative unknowns as well as for the sake of recovering probability distributions. Moreover, we discuss several variants of the algorithm and relations to other methods in the literature. The effectiveness of the approach is studied numerically in several examples.
Ultra-intense laser pulse characterization using ponderomotive electron scattering
Authors: Mackenroth Felix , Holkundkar Amol R , Schlenvoigt Hans-Peter
Published: November 2019

We present a new analytical solution for the equation of motion of relativistic electrons in the focus of a high-intensity laser pulse. We approximate the electron’s transverse dynamics in the averaged field of a long laser pulse focused to a Gaussian transverse profile. The resultant ponderomotive scattering is found to feature an upper boundary of the electrons’ scattering angles, depending on the laser parameters and the electrons’ initial state of motion. In particular, we demonstrate the angles into which the electrons are scattered by the laser scale as a simple relation of their initial energy to the laser’s amplitude. We find two regimes to be distinguished in which either the laser’s focusing or peak power are the main drivers of ponderomotive scattering. Based on this result, we demonstrate how the intensity of a laser pulse can be determined from a ring-shaped pattern in the spatial distribution of a high-energy electron beam scattered from the laser. We confirm our analysis by means of detailed relativistic test particle simulations of the electrons’ averaged ponderomotive dynamics in the full electromagnetic fields of the focused laser pulse.
Adaptive Bayesian phase estimation for quantum error correcting codes
Authors: Martínez-García F , Vodola D , Müller M
Published: November 2019

Realisation of experiments even on small and medium-scale quantum computers requires an optimisation of several parameters to achieve high-fidelity operations. As the size of the quantum register increases, the characterisation of quantum states becomes more difficult since the number of parameters to be measured grows as well and finding efficient observables in order to estimate the parameters of the model becomes a crucial task. Here we propose a method relying on application of Bayesian inference that can be used to determine systematic, unknown phase shifts of multi-qubit states. This method offers important advantages as compared to Ramsey-type protocols. First, application of Bayesian inference allows the selection of an adaptive basis for the measurements which yields the optimal amount of information about the phase shifts of the state. Secondly, this method can process the outcomes of different observables at the same time. This leads to a substantial decrease in the resources needed for the estimation of phases, speeding up the state characterisation and optimisation in experimental implementations. The proposed Bayesian inference method can be applied in various physical platforms that are currently used as quantum processors.
Magnetic tunnel junctions consisting of a periodic grating barrier and two half-metallic electrodes
Authors: Fang Henan , Xiao Mingwen , Zhong Yuanyuan , Rui Wenbin , Du Jun , Tao Zhikuo
Published: November 2019

We have developed a spintronic theory for magnetic tunnel junctions consisting of a single-crystal barrier and two half-metallic ferromagnetic electrodes. Radically different from the conventional theories, the barrier is now regarded as an optical diffraction grating, and treated by the traditional optical scattering method, i.e. Bethe theory and two-beam approximation. After tunneling, the electrons can thus possess high coherence. In the case that the electrodes are both half-metallic, the conventional theories give an infinite tunneling magnetoresistance (TMR). By contrast, in the Bethe theory and two-beam approximation, there can exist the scattering channels of nonconservation of energy. Therefore, the TMR can still be far away from infinity, which is in accordance with experiments. Also, we find that, due to the half-metallicity of the electrodes, the parallel conductance oscillates with temperature whereas the antiparallel conductance will increase other than oscillate with temperature. That is in agreement with experiments, too. Finally, two applications of the present theory are discussed with regard to the material design and engineering: one is how to choose appropriate materials for the barrier to realize infinite TMR; the other is a criterion for judging whether a material is half-metallic or not.
Time-dependent spectral properties of a photoexcited one-dimensional ionic Hubbard model: an exact diagonalization study
Authors: Okamoto Junichi
Published: November 2019

Motivated by the recent progress in time-resolved nonequilibrium spectroscopy in condensed matter, we study an optically excited one-dimensional ionic Hubbard model by exact diagonalization. The model is relevant to organic crystals, transition metal oxides, or ultracold atoms in optical lattices. We implement numerical pump-probe measurements to calculate time-dependent conductivity and single-particle spectral functions. In general, short optical excitation induces a metallic behavior imprinted as a Drude peak in conductivity or an in-gap density of states. In a Mott insulator, we find that the induced Drude peak oscillates at the pump frequency and its second harmonic. The former comes from the oscillation of currents, and the latter from the interference of single- and three-photon excited states. In a band insulator, the Drude peak oscillates only at the pump frequency, and quantities such as the double occupancy do not oscillate. The absence of the second harmonic oscillation is due to the degeneracy of multi-photon excited states. The in-gap density of states in both insulators correlates with the Drude weight and the energy absorption for weak pumping. Strong pumping leads to saturation of the in-gap density of states and to suppression of the Drude weight in the Mott regime. We have also checked that the above features are robust for insulators in the intermediate parameter range. Our study demonstrates the distinct natures of the multi-photon excited states in two different insulators.
Domestication of Rasbora argyrotaenia from the Musi river waters
Authors: Mutiara D , Harris H , Arsyad N
Published: November 2019

The domestication of Seluang fish (Rasbora argyrotaenia) has been carried out from the waters of the Musi river in the province of South Sumatra. The aim of determining the original domestication technique as a basic for further research on reproduction or spawning of Seluang fish in bulk and planned and restocking in public waters as an effort to preserve Seluang fish resources. The sampling location was used the Purposive Random Sampling method in 3 locations where there are usually many Seluang fish. Whereas the domestication method used the Experimental method with environmental manipulation treatment in cement tubs measuring 3 × 4 m deep 0.75 m. Fish are given natural and artificial feed for approximately 1 month (week 0 to week 4). The results showed that the domestication process of Seluang Fish (Rasbora argyrotaenia) can be done by maintenance in ponds that have been manipulated to resemble their natural habitat with artificial feed. The results showed an increase in weight of 0.0114 grams / day, an increase in length of 0.036 cm / day and survival of 79.01%.
The research of gold processing from tailings of iron sand processing from South Kalimantan by using amalgamation methods in West Java
Authors: Pulungan L , Pramusanto P , Hermana F A
Published: November 2019

The purpose of this activity was to determine the characteristics of gold contained in iron sand mining tailings based on mineragraphic parameters, gold recovery by amalgamation method, and Hg used and wasted with tailings in the amalgamation process. The results showed the characteristics of gold based on mineragraphic parameters had a bright yellow gold colour, irregular shape, isotropic crystals, low relief, not yet liberated, measuring between 0.04 - 0.25 mm, mostly tied to minerals contains Fe and some binds to non-metallic minerals. The recovery of a pure sample is 90.83%, with the use of mercury 5.6 grams, and the mercury lost with its tailings as much as 6.4 grams. As for the samples that have been recovered, the recovery was 25.5% with the use of 1.4 grams of mercury, and 6.6 grams of mercury lost with tailings.
Supply arrangement of raw material and sugar stock to organize overstock risk in warehouse
Authors: Kusuma Y A
Published: November 2019

Raw materials and production outcome play important role in supporting warehouse capacity. The performance of company's production process will not be bothered if the company can control raw materials inventory and production capacity so that this is important to control logistics in warehouse. The activities in company's warehouse are very important because they will affect the response level to goods collecting. Risk management is required to respond actions that affect problem in raw materials capacity and production stocks in warehouse. This study aims to determine the amount of raw material inventory and warehouse stock capacity in PG XYZ and to determine the schedule of sugarcane raw materials so that the raw materials intensity and stocks can be equally distributed during the milling season. This study obtained total inventory cost from inventory management analysis of Rp. 663.945.589,8 resulted in an efficiency of Rp 36.054.410,02 and there are 2 risks that are categorized into high risk category, namely the previous milled sugar is still available and refined sugar is circulating exceed capacity.
Ergonomic design for laptop desk in sit-down cafe with hotspot
Authors: Hutabarat J , Basuki D W L , Mustofa A
Published: November 2019

This study aims to design laptop desk in sit-down cafe with hotspot availability, which are ergonomic and comfortable for consumers, so that they will feel comfortable to put their laptops, food and drinks. Therefore, the initial research was conducted to find the criteria which the customers require regarding laptop desk in sit-down restaurant with hotspot availability by distributing questionnaires to consumers which was then followed by validity and reliability test toward the questionnaires which was then followed by the weighting using AHP method. After obtaining the criteria of the required desk, then a morphological map was created to get the alternative design in accordance with the criteria required by consumers. After that, zero-one calculation was performed to get the required/selected design. Anthropometry was then calculated to get the actual size/dimension. Based on the results of the study it can be concluded that the selected design based on the customers’ preference is a laptop desk designed for individuals / personal equipped with a place/space to eat and drink with a brown color, made from wood and with the size / dimensions: Table length = 56 cm, table width = 34 cm, table height = 36 cm.
Determination model for flagship industry based on potential commodity
Authors: Numan A H , Nurwandi L , Damiri D J , Renosori P
Published: November 2019

The assignment of industry type at a location generally influenced by, the amount of flagship industry and the factors number of potential infrastructure existed at a location. A kind of factors that affected to determination of flagship industry, observed in this research namely production, export, infestation, labour and location quotient. Complexity conditions of decision-making that focuses on the number of flagship industry, and every type of industry affected by the dominant factors that impact on a site, provide a model that unite a kind of its factors. This paper will be presented a model that focused to assign priority development of flagship industries in an area, respect to affected factors with analytic hierarchy process (AHP). The model consists of nine types of flagship industries which potentially to be developed, and affected by a potential factor consists on the flagship industry. Results of the study showed, in order to determine an important flagship industry developed in the future, depend on the availability of LQ index and production, which required to be able to follow the needs of the development of the dynamics of the market competition in the future for seaweed commodity.
Location determination model for depot based capacity on seaweed industry distribution
Authors: Nurwandi L , Numan A H , Bachtiar I , Selamat S
Published: November 2019

Seaweed is the base material that can be processed into, food, drugs, and cosmetic. Utilization of seaweed into excellent products, particularly in Indonesia who become the second exporter of the world, meet some obstacles including determining main depot which cultivate seaweed into the base material, before being made an advanced product. This research proposed a model by considering the factors that affect to determination of depot which utilize as distribution point. There are five industries that observed in this paper as plant, warehouse, packing, initials product, and final product which influence by seven factors, namely natural resources, infrastructure, labour, technology, policy, education, and economy, for the six areas that will be used as depot, as source location of seaweed, and then the selection proceed with analytic hierarchy process (AHP) to determine weight of priority industry as a depot for seaweed industry on specific area. The results of AHP for six areas then proceed by assignment method, and the result showed that the depot is more determined by the maximum weight. Final result show that plant, final product and packing is the big three of priority industry that have to considered to be develop on seaweed industry, with respect to economy condition, technology existing, and sustain natural resources of seaweed.
Technology transfer program for SMEs in Indonesia
Authors: Handoko F , Vitasari P , Hidayat S , Tjahjadi M E
Published: November 2019

Technology transfer is a way to improve technology capability, especially for Small to Medium Enterprises (SMEs) in Emerging Economies such as in Indonesia. SMEs are often thought to have insufficient resources for advancing their in-house technology development. Therefore, SMEs need technology transfer programs to increase their technology capability. Government, Business, Universities have been involved in technology transfer program in this country. Using data from about 200 Javanese metal-based SMEs, this paper discovers the technology transfer program from Government, Business, Universities in advancing the SMEs technology capability in Indonesia. The results show that substantial numbers of small to medium enterprises are actively involved in technology transfer programs.
Industrial symbiosis of fragrant lemongrass distillation in West Java
Authors: Aviasti A , Nugraha N , Amaranti R , Nurrahman A A
Published: November 2019

The fragrant lemongrass oil processing industry is one of the industrial activities that provides a major contribution in improving the economy of the community, especially the business actors involved, namely farmers and processing industries of fragrant lemongrass oil. Based on the results of preliminary research that has been carried out there is a major problem of lack of collaboration between industries of refined citronella oil refiners. The main objective of this study is to determine the right industrial symbiosis model for small and medium scale citronella oil processing industries so as to optimize the potential and resources possessed and be able to integrate it with other industries. The approach method used to support the success of the output target is to conduct a structured stage of research starting from preliminary studies, formulating the problem and determining the objectives of the study, literature study, determining the steps of research, gathering the required data, and designing industrial symbiosis models. The results obtained are that there are several industrial symbiosis alternative models for fragrant lemongrass (sereh wangi) distillation in accordance with the characteristics of each region.
Business architecture planning with TOGAF framework
Authors: Sofyana L , Putera A R
Published: November 2019

Enterprise TOGAF architecture development methodology. TOGAF is a detailed method in its stages to build a new business process architecture and information system. The results in welcoming the era of industrial revolution, education in Indonesia especially higher education, one of which is obtained at STIKES strives to follow the development of information technology. One of the existing STIKES in East Java is a college that has a vision and mission according to the development of information technology. but in the implementation has not followed the rules of an enterprise, STIKES XYZ not have information systems, especially in the management of employees and Process/flow that occurs is still a manual process. Business process flow that exists requires improvement of business processes in order to improve quality and optimize the human resources information system with the support of a good and efficient. This study refers to the of this research are the blueprint new business processes in the form of a recommendation, which consists of documents that would explain what kind of information systems required by STIKES. The expected results of this research can be used as a guide in the procurement and development of information systems at STIKES XYZ.
Voice pattern recognition using Mel-Frequency Cepstral Coefficient and Hidden Markov Model for bahasa Madura
Authors: Ubaidi U , Dewi N P
Published: November 2019

Voice recognition is one part of an application that allows a device to recognize spoken words by digitizing words and matching digital signals with a particular pattern stored in a device. Spoken words are converted into digital signals by converting voice waves into a set of numbers which is then compared with the voice pattern to identify the words. MFCC can be an alternative method to solve the problem of voice extraction because this method is reliable for recognizing the unique features of human voice. Hidden Markov Model is used to recognize the voice pattern, so it can be used to compare the voice signal obtained from e-learning with the trained voice signal. Bahasa Madura is a regional language used by ethnic Madurese to communicate daily. Currently the number of Madurese people who understand this language is reduced so that the use of Bahasa Madura is also reduced. Therefore, it is necessary to conduct speech recognition research in Madura Language as one of effort to preserve and develop the use of Regional Language. The experimental results show that the average accuracy for testing the system with one model is 85% and the average accuracy for testing the system with multi model is 90%.
The role of product attributes in forming consumers perception of local packed drinking water brand in Langsa City
Authors: Fuad M , Hanafiah H , Wibowo G A
Published: November 2019

The study aims to analyze the role of product attributes of local packed drinking water (AMDK) brand in forming consumers perception of the product. Local AMDK commonly circulating in Langsa City today is the brand of Tari. Product attributes in this study include product quality, brand image, and packaging design. Respondents are consumers who have consumed local brand AMDK, amounting to 153 people selected using accidental sampling. Multiple linear regression technique was used to analyse data. The results showed that product quality, brand image and packaging design had positive and significant influence, either partially or simultaneously, to consumers perception on local brand AMDK. Furthermore, product quality is the dominant variable affecting consumers perception. Thus, local AMDK companies are recommended to continue to improve the quality of the products offered to the market. In addition, efforts to improve a positive brand image and attractive and memorable packaging design into the minds of consumers also need to be done in order to compete with national competitors.
The millennials’ perceived behavioural control on an eco - friendly house purchase intention
Authors: Wijayaningtyas M , Handoko F , Hidayat S
Published: November 2019

The millennial generation has an important role in actualizing environmentally friendly residence. Referring to the behavioural theory, a consumer’s Perceived Behavioural Control (PBC) is one of purchase intention antecedents. Studies revealing the millennials’ control behaviour on purchasing an eco-friendly house, especially in Indonesia, are still limited. Moreover, environmentally friendly housing is still new to prospective house buyers in Indonesia; so, how to control their behaviour toward purchasing behaviour or willingness to pay has not been clearly known. Therefore, this study is conducted to explore the millennial generation’s PBC on an eco-friendly house purchase intention. This is a qualitative research with a phenomenological approach focusing on observing the perceived behavioural control phenomenon of prospective house buyers. The data was collected through a semi-structured in-depth interview with nine prospective house buyers in Surabaya, East Java. This research found that the themes of millennial house buyers perceived behavioural control toward an eco-friendly house purchase intention were ‘perceived difficulty’ and ‘perceived benefit’. The finding implies that housing developers and government should provide convenience to develop eco-friendly houses and be consistent to complete the buildings with facilities; the facilities will especially support the millennial costumers’ sustainable living and the sustainable development in Indonesia.
Strategy in river flood control
Authors: Nurdiyanto N
Published: November 2019

In February 2018, there was a flood due to the overflow of the Cisanggarung River, one of the affected areas is the population in Ciledug Sub-district, Cirebon, West Java, Indonesia. The purpose of this research is to control the flood of the Cisanggarung River. This study analyzes the amount of water flow that flows in the river crossing capacity. The method used is floods routing from rainfall data using Nakayashu hydrological analysis. The results of the analysis show that the amount of discharge for river capacity is 658 m3/s, while the flood discharge is 784 m3/s, so the river capacity cannot accommodate water. The solution is to floods control by building embankments and normalizing river flow from existing waste. With plans to build embankments and normalize the river, the river capacity becomes 940 m3/s.
Microwave-assisted hydrothermal growth of ZnO micro-nano structures
Authors: Alfarisa S , Toruan P L , Dwandaru W S B , Hudha M N , Sumarlan I
Published: November 2019

Various methods have been introduced to synthesize ZnO nanostructures, however as in most nanomaterial fabrication processes, these methods require sophisticated equipment and relatively high cost. Hydrothermal method has been known as a simple and inexpensive route to produce ZnO nanostructures. Unfortunately, this method takes a long production time in order to produce high quality ZnO hence making it less efficient. In this study, ZnO micro-nano structures have been successfully synthesized via a fast and low wattage microwave-assisted hydrothermal growth. X-ray diffraction and scanning electron microscope characterizations were done on samples. The rapid heating process generated from rotation, friction and collisions of water molecules inside the microwave resulted in faster reaction process compared with conventional hydrothermal method. Due to its time and cost efficient, this method is useful for optimizing the resulted ZnO and its further applications.
Preliminary study potential of heavy metals in geothermal sludge
Authors: Pulungan L , Ashari Y , Wicaksana I K
Published: November 2019

One of the New Potential Renewable Energy in Indonesia is geothermal potential which its activity in Indonesia is developed into Geothermal Power Plant XY in West Java and as the utilization of geothermal to reduce the dependency of fossil energy progresses, its utilization will create negative impacts on the environment such as landscapes, noises, subsidence, seismic induction, and heavy metal potential. With this background, it is necessary to conduct the identification of those potentials and the possibility of metals’ utilization. The researcher conducted this research by doing identification on dissolved metals types and its potential to harm the environment. The process was conducted by using Atomic Absorption Spectrophotometry (AAS) method. The sampling process performed on solid waste which was the result of geothermal drilling process or Geothermal Sludge and water sample which came off from the PLTP that headed to public waters around citizens residences. The test result of geothermal sludge showed that it contained heavy metals. The water sample collected around citizens residences also showed there were heavy metals.
Fixed point theorem on volterra integral equation
Authors: Sihombing S C , Lia L
Published: November 2019

This paper discussed the fixed-point theorem in the metric space and its application to the second linear volterra integral equation. This research is done by first studying the concept of metric space and its properties. Then, we studied the application on the second linear volterra integral equation. After obtaining sufficient condition to converge second linear integral volterra equation, we solved the equation by Fixed Point iteration method using Matlab R2013a software. The solution obtained was compared with the exact solution. The results of this study indicate that the numerical solution is quite good.
Eccentric distance sum and adjacent eccentric distance sum index of complement of subgroup graphs of dihedral group
Authors: Abdussakir A , Susanti E , Hidayati N , Ulya N M
Published: November 2019

Let G = (V(G),E(G)) is a connected simple graph. Let ec(v) is the eccentricity of vertex v, D(v) = Σ
u∈V(G)
d(u,v) is the sum of all distances from vertex v and deg(v) is the degree of vertex v in G. The eccentric distance sum index of G is defined as ξd
(G) = Σ
v∈V(G)
ec(v)D(v) and the adjacent eccentric distance sum index of G is defined as

ξ

s
v

(
G
)
=

∑

v
∈
V
(
G
)

e
c
(
v
)
D
(
v
)

deg
(
v
)

. For positive integer m and m ≥ 3, let D
2m
be dihedral group of order 2m and N is a normal subgroup of D
2m
. The subgroup graph Γ
N
(D
2m
) of dihedral group D
2m
is a simple graph with vertex set D
2m
and two distinct vertices x and y are adjacent if and only if xy ∈ N. In the present paper, we compute eccentric distance sum and adjacent eccentric distance sum index of complement of subgroup graph of dihedral group D
2m
. Total eccentricity, eccentric connectivity index, first Zagreb index, and second Zagreb index of these graphs are also determined.
Investigation of gender influence to enhance the indicator of mathematical competency of college students in integral calculus learning
Authors: Ramdani Y , Rohaeni O , Wachidah L
Published: November 2019

This research investigates the difference in indicator of college students' mathematical competence in Integral calculus learning based on gender. The research design was quasiexperiment involving 200 college students. The research instrument was a test of mathematical competency. Value category refers to the Standard Reference. Data were analyzed by the Mann-Whitney U test. The results showed that in the scientific debate strategy for men and women the average value of each indicator in a row were: (1) Concepts understanding were C and B categories; (2) Procedures fluency were A and A; (3) Strategic competencies were B and B; (4) Adaptive reasoning were B and B; (5) Productive disposition were B and B. Gender differences in the scientific debate strategy do not have a significant effect on enhancement of indicator of mathematical competence. In the conventional learning shows: (1) Concepts understanding were C and B; (2) Procedures fluency were C and B; (3) Strategic competencies were D and C; (4) Adaptive reasoning were C and B; (5) Productive disposition were C and B. Gender differences in conventional learning do not have a significant effect on enhancement of concept understanding, strategic competence, and adaptive reasoning. These have a significant influence on the enhancement of procedural fluency and productive disposition.