bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analisis Pengaruh Pelatihan dan Sertifikasi terhadap Produktivitas Pekerja
Authors: Kodri Irfa , Fitriani Heni , Juliantina Ika 
Published: August 2018

Worker productivity is an important part of the successful development of human resources and infrastructure building. One of the ways to improve workers’ productivity is using training and worker certification. Therefore, there is a need to analyze the effects of training and certification on worker productivity with case study lightweight brick and steel rods workers in some projects in Palembang. This study aims to analyze the productivity value of workers between certified trained workers (TS) and untrained noncertified workers (BTBS) in the field. Furthermore, comparisons were also conducted on productivity based on field survey and Indonesian National Standard (SNI). This paper also analyzed the significant factors that affect workers productivity in the field. This productivity appraisal used field observation methods and questionnaire. From the results of the study, it was concluded that the training and certification of the workforce greatly affected the worker’s productivity; but some of workers’ productivity of trained workers (TS) and untrained noncertified (BTBS) met the standards of SNI, some did not. This was due to the influence of other factors beyond training and certification of the productivity value of handyman. Furthermore, based on t test results, the factors that significantly affect the productivity of workers were the skills of labor (X1), work motivation (X2) and management (X4). Thus the available regression equation was Y =0,024 +0,332 X1 + 0,676X2 - 0,039X4 + e.
The Eneolithic Ritual Barrow Complex in Prydnistrianske, Vinnystia Oblast: Magnetometric Surveys
Authors: Przybyła Marcin M. , Podsiadło Michał , Potupchyk Mykhailo V. , Włodarczak Piotr , Żurkiewicz Danuta 
Published: August 2018

Abstract
The article presents the results of magnetometric surveys carried out in the village of Pridnistryanske on two barrow sites. In the site 1, the principal objectives were to capture the course of barrow ditches - not covered by the excavations - and investigate the space between the mounds. On site 2 relying on photographs was a group of nearby barrows selected for geophysical investigations.
Yampil Barrow Complex: Prydnistryanske 1 and Klembivka 1. Pedological-Environmental Aspects of Location
Authors: Jankowski Michał , Dąbrowski Michał , Jasińska Justyna , Michalski Adam 
Published: August 2018

Abstract
The paper presents results of pedological studies of Klembivka site 1 and Prydnistryanske site 1 barrow IV and the reference soil profile Prydnistryanske site 1 in the context of pedostratigraphy, basic soil properties, construction material origin and palaeoenvironmental implications.
Ritual position and “tattooing ” techniques in the funeral practices of the “barrow cultures” of the Pontic-Caspian steppe / forest steppe area. Porohy 3A, Yampil Region, Vinnytsia Oblast : specialist analysis research perspectives
Authors: Lorkiewicz-Muszyńska Dorota , Sobol Julia , Langer Jerzy J. , Kośko Aleksander , Włodarczak Piotr , Żurkiewicz Danuta , Potupchyk Mykhailo 
Published: August 2018

Abstract
The present paper discusses the results of an interdisciplinary study of human remains in the form of two ulnae from a female skeleton found in grave 10, Porohy 3A site (Middle Dniester Area), dated to Early Bronze Age: 2650-2500 BC. The paper describes the technical aspects of applying the decorations revealed in the examination of the aforementioned bones.
Status of Animals in Funerary Rituals of Founders and Users of Ceremonial Centres of the Yampil Barrow Cemetery Complex(4th/3rd-2nd Millenium BC). A Zooarchaeological Perspective
Authors: Marciniak Arkadiusz , Yanish Yevheniya Y. , Zhuravlov Oleh , Kośko Aleksander , Włodarczak Piotr , Żurkiewicz Danuta Ż 
Published: August 2018

Abstract
This study discusses the issue of ‘animal deposits’ in funerary practices of early barrow communities settling the Black Sea steppe and forest-steppe in the 4rd/3nd-2nd millennium. The focus of analytical studies is directly on the Yampil Barrow Cemetery Complex situated along the left bank of the Dniester, between the Murafa and Markivka rivers, or what is the Yampil Region (Vinnitsa Oblast) now. The chorological system developed by N.Ya. Merpert in his “Yamnaya Cultural-Historical Area” places this area within the Southwestern Variant (between the Southern Bug and Danube rivers) as the Yampil (Podolia) territorial centre. From the perspective of the research programme exploring the ‘bio-cultural border land between the West and East of Europe’, the Yampil Barrow Cemetery Complex is of special scholarly interest because of its western most location on the Dniester route of exchange for cultural patterns developed by communities settling the drainage basins of the Black and Baltic seas. The investigations followed the excavations of 23 barrows between 1984 and 2014.
Yamnaya Culture Hoard of Metal Objects, Ivanivka, Lower Murafa: Autogenesis of ‘Dniester Copper/Bronze Metallurgy’
Authors: Klochko Viktor I. 
Published: August 2018

Abstract
In 2015 near the village of Ivonivka, Mohyliv-Podilskyi Region, Vinnytsia Oblast, a hoard of copper objects was found by chance by the River Murafa. The majority of objects belonging to the hoard were fashioned out of a rather pure copper with a combination of admixtures, which can be named ‘the Ivonivka group’.
Kurgan rites in the Eneolithic and Early Bronze Age Podolia in light of materials from the funeraryceremonial centre at Yampil
Authors: Włodarczak Piotr 
Published: August 2018

Abstract
The paper discusses the kurgan burial rites observed by communities inhabiting the eastern part of the Podolie Region in the second half of the 4th and first half of the 3rd millennia BC. The presented data concern finds from four areas: Yampil, Kamienka, Mocra, and Tymkove. The research made it possible to distinguish among the examined material assemblages linked with Late Eneolithic communities. They included graves of the Zhivolitovka-Volchansk type, burials in the extended position, as well as burials representing other cultural traditions (Nizhnaya Mikhailovka, Post-Stog). Materials attributed to the Yamnaya culture prevailed, and their analysis allowed us to trace changes in funeral rituals, reflected in the architecture of graves, arrangement of burials, and grave goods. Materials linked with the late phase of this cultural unit have not been recorded.
Public History in Movement – Present Pasts: the Memory of Slavery in Brazil
Authors: de Almeida Juniele Rabêlo , Viana Larissa Moreira 
Published: August 2018

Abstract
Present Pasts: The Memory of Slavery in Brazil is a sound testament to the Brazilian public history movemen.This problematization of the “present pasts of slavery” finds fertile ground in Brazilian public history because of the urgent need to record and analyze representations of this traumatic past, going beyond professional and academic contexts to the public sphere. Public history offers reinvigorating possibilities for mediation between, and intervention in, the past and its publics.The Present Pasts Research Network provides a thought-provoking example of public history’s ability to be sensitive to broad public debate and how the needs, interests, and representations of communities can be addressed through historical representation, interpretation, and active history-making.
Crystal structure of bis{5-methoxy-2-((E)-((4-((E)-1-(methoxyimino)ethyl)phenyl)imino)methyl)phenolato-κ2
N,O}nickel(II), C34H34N4NiO6
Authors: Ma Jin-Xia , Li Qing-Lin , Li Peng-Peng , Zhao Ji-Xing , Zhao Li 
Published: August 2018

Abstract
C34H34N4NiO6, monoclinic, P21/c (no. 14), a = 10.5538(5) Å, b = 6.1691(2) Å, c = 24.2831(9) Å, β = 100.519(4)°, Z = 2, V = 1554.43(11) Å3, R
gt(F) = 0.0402, wR
ref(F
2) = 0.0973, T = 294.39(10) K.
Status or Security: The Case of the Middle East and North Africa Region
Authors: Douch Mohamed , Solomon Binyam 
Published: August 2018

Abstract
This paper takes advantage of the new extended military expenditures dataset from the Stockholm International Peace Research Institute (SIPRI) to estimate demand for military expenditures model for the Middle East and North Africa (MENA) region. The extended dataset affords us to adopt robust dynamic panel estimation techniques along with a set of threat and strategic interaction proxies. Our analysis indicates that status seeking (“peer pressure”) explains the bulk of the demand for military spending in the region. We also note a significant trade-off between military and social spending, somewhat mitigating the arms race implied by status. “Resource Curse” is not a significant determinant of military spending in the region especially when applying a robust dynamic specification. We find negative and weak response to local and regional threats suggesting the need for more sophistication in the design of threat proxies.
A Novel Reliability Analysis Method for Turbine Discs with the Mixture of Fuzzy and Probability-Box Variables
Authors: Zhang Xiaoqiang , Gao Huiying , Li Yan-Feng , Huang Hong-Zhong 
Published: August 2018

Abstract
Fuzzy and probability-box (p-box) variables exit widely in aerospace engineering. To evaluate the reliability of turbine discs under the mixture of these two types of variables and guarantee safety, the critical point lies in how to deal with the fuzzy variables. In this paper, a novel method based on equivalent transformation of entropy and saddlepoint approximation (SPA) is proposed to estimate the reliability of turbine discs with the mixture of fuzzy and p-box variables. The advantage of the proposed method is that it can transform fuzzy variables whose memberships are non-normal into normal random variables through entropy invariability; meanwhile, using the SPA, the required sample size and corresponding computational cost decreases greatly. An example is used to illustrate the proposed method and a comparison is also made with the interval Monte Carlo simulation (IMCS). The results indicate that the proposed method is promising and has higher efficiency with almost the same accuracy.
Water Film Formation and Performance Effect on Compressor Stage in Water Injection Process
Authors: Liu Chunlei , Zhang Hai , Yang Lu , Zheng Qun , Yue Guoqiang 
Published: August 2018

Abstract
In this study, the thickness of water film, which is frequently formed on compressor blade surface, was investigated. Simultaneously, its movement and extra torque demand were provided by a simulation model of the code. Having taken into account the transformation in blade’s profile and the thickness feature of the films, the working medium characteristic transformation in compressor stage was analyzed. In addition, formation, development and movement of the water film on a compressor stage were simulated by using unsteady numerical methods in various water injected conditions. Movement characteristics of water droplets in cascade were investigated to understand the flow mechanisms responsible for water film formation process. The forming and the tearing process of water films, which formed on the blade surface, were analyzed at different injection conditions. In consideration of the “Scoop effect” in actual situation, the maximum quantity of injected water can reach 12 %. Results indicated that continuity and region of the film would be developed with the increment of droplet size and injection rate. It was also found that water film’s tearing process brought about flow losses near blade surface due to the increment of surface roughness.
Microstructure Evaluation on Friction Stir Welding of Cryorolled 2219 Aluminum Alloy
Authors: Kamal Babu K. , Panneerselvam K. , Sathiya P. , Noorul Haq A. , Sundarrajan S. , Mastanaiah P. , Srinivasa Murthy C. V. 
Published: August 2018

Abstract
This article presents a study of friction stir welding (FSW) on cryorolled (CR) AA2219 alloy using a hexagonal pin tool with different set of process parameters. Normally, AA2219 alloy is difficult to weld, but it is possible to get a defect-free, sound weldment with a solid-state welding technique (FSW) compared to traditional welding methods. Here, among the 9 weld joints, the weld made on CR AA2219 by the hexagonal pin tool with 1,000 r/min tool rotational speed at 25 mm/min welding speed and 3° axis inclination exhibited better tensile strength, impact toughness, hardness, and corrosion resistance. It was confirmed by microscopy analysis that the ultrafine grains structure and dissolution of Al2Cu were present at the weld zone. The fine dimple morphology was found at the fracture surface area of weldment. Also, the X-ray Diffraction (XRD) and energy-dispersive X-ray results showed that the intensity of Al2Cu was decreased at the weld portion for the CR AA2219. Dissolution of precipitates resisted the flow of electrons and delivered good resistance against corrosion. Corroded portion surface topography was analyzed, and pit details were measured.
Deformation Characteristics of Retaining Structures and Nearby Buildings for Different Propped Retaining Walls in Soft Soil
Authors: Liu Nianwu , Duan Nuo , Yu Feng 
Published: August 2018

Abstract
This article reports the field performance of deep excavations of two subway station cases, including the lateral wall deflection behavior and settlement trends of the surrounding soil and nearby buildings. The retaining structures employed in these cases were contiguous pile walls (CPW), soil-mixing walls, and diaphragm walls (DW), all of which were embedded in soft clay. The measured wall deflection profiles exhibited typical bulging behavior at the end of the excavation. The ratios of the measured maximum wall deflection to the excavation depth were found to be similar for all three types of retaining wall. Furthermore, the maximum and minimum corner effects on the wall deflection development were obtained for the DW and CPW, respectively. The measured ground surface settlement increased linearly with increased maximum lateral wall deflection, while the settlement magnitude became extraordinarily large because of the presence of sludgy soil. A concave pattern was proposed for the surface settlement profiles for all three types of retaining wall. The building settlement was quantified, with the value lying between those of the surface settlement and soil settlement at 10-m depth. The soil displacement field induced changes in the side and end resistance behaviors of the loaded piles, along with additional settlement of pile-foundation buildings. In addition, the pile-foundation building settlement was influenced by the corner effect. These research results will enhance our understanding of the deformation characteristics of the retaining structure and nearby buildings. Meanwhile, the findings will provide guidance for the optimal design of the retaining structure in soft soil.
Not All Predictions Are Equal: “What” and “When” Predictions Modulate Activity in Auditory Cortex through Different Mechanisms
Authors: Auksztulewicz Ryszard , Schwiedrzik Caspar M. , Thesen Thomas , Doyle Werner , Devinsky Orrin , Nobre Anna C. , Schroeder Charles E. , Friston Karl J. , Melloni Lucia 
Published: August 2018

Using predictions based on environmental regularities is fundamental for adaptive behavior. While it is widely accepted that predictions across different stimulus attributes (e.g., time and content) facilitate sensory processing, it is unknown whether predictions across these attributes rely on the same neural mechanism. Here, to elucidate the neural mechanisms of predictions, we combine invasive electrophysiological recordings (human electrocorticography in 4 females and 2 males) with computational modeling while manipulating predictions about content (“what”) and time (“when”). We found that “when” predictions increased evoked activity over motor and prefrontal regions both at early (∼180 ms) and late (430–450 ms) latencies. “What” predictability, however, increased evoked activity only over prefrontal areas late in time (420–460 ms). Beyond these dissociable influences, we found that “what” and “when” predictability interactively modulated the amplitude of early (165 ms) evoked responses in the superior temporal gyrus. We modeled the observed neural responses using biophysically realistic neural mass models, to better understand whether “what” and “when” predictions tap into similar or different neurophysiological mechanisms. Our modeling results suggest that “what” and “when” predictability rely on complementary neural processes: “what” predictions increased short-term plasticity in auditory areas, whereas “when” predictability increased synaptic gain in motor areas. Thus, content and temporal predictions engage complementary neural mechanisms in different regions, suggesting domain-specific prediction signaling along the cortical hierarchy. Encoding predictions through different mechanisms may endow the brain with the flexibility to efficiently signal different sources of predictions, weight them by their reliability, and allow for their encoding without mutual interference.SIGNIFICANCE STATEMENTPredictions of different stimulus features facilitate sensory processing. However, it is unclear whether predictions of different attributes rely on similar or different neural mechanisms. By combining invasive electrophysiological recordings of cortical activity with experimental manipulations of participants' predictions about content and time of acoustic events, we found that the two types of predictions had dissociable influences on cortical activity, both in terms of the regions involved and the timing of the observed effects. Further, our biophysical modeling analysis suggests that predictability of content and time rely on complementary neural processes: short-term plasticity in auditory areas and synaptic gain in motor areas, respectively. This suggests that predictions of different features are encoded with complementary neural mechanisms in different brain regions.
DMRT5, DMRT3, and EMX2 Cooperatively RepressGsx2at the Pallium–Subpallium Boundary to Maintain Cortical Identity in Dorsal Telencephalic Progenitors
Authors: Desmaris Elodie , Keruzore Marc , Saulnier Amandine , Ratié Leslie , Assimacopoulos Stavroula , De Clercq Sarah , Nan Xinsheng , Roychoudhury Kaushik , Qin Shenyue , Kricha Sadia , Chevalier Clément , Lingner Thomas , Henningfeld Kristine A. , Zarkower David , Mallamaci Antonello , Theil Thomas , Campbell Kenneth , Pieler Tomas , Li Meng , Grove Elizabeth A. , Bellefroid Eric J. 
Published: August 2018

Specification of dorsoventral regional identity in progenitors of the developing telencephalon is a first pivotal step in the development of the cerebral cortex and basal ganglia. Previously, we demonstrated that the two zinc fingerdoublesexandmab-3 related(Dmrt) genes,Dmrt5(Dmrta2) andDmrt3, which are coexpressed in high caudomedial to low rostrolateral gradients in the cerebral cortical primordium, are separately needed for normal formation of the cortical hem, hippocampus, and caudomedial neocortex. We have now addressed the role ofDmrt3andDmrt5in controlling dorsoventral division of the telencephalon in mice of either sex by comparing the phenotypes of single knock-out (KO) with double KO embryos and by misexpressingDmrt5in the ventral telencephalon. We find that DMRT3 and DMRT5 act as critical regulators of progenitor cell dorsoventral identity by repressing ventralizing regulators. Early ventral fate transcriptional regulators expressed in the dorsal lateral ganglionic eminence, such asGsx2, are upregulated in the dorsal telencephalon ofDmrt3;Dmrt5double KO embryos and downregulated when ventral telencephalic progenitors express ectopicDmrt5. Conditional overexpression ofDmrt5throughout the telencephalon produces gene expression and structural defects that are highly consistent with reduced GSX2 activity. Further,Emx2;Dmrt5double KO embryos show a phenotype similar toDmrt3;Dmrt5double KO embryos, and both DMRT3, DMRT5 and the homeobox transcription factor EMX2 bind to a ventral telencephalon-specific enhancer in theGsx2locus. Together, our findings uncover cooperative functions of DMRT3, DMRT5, and EMX2 in dividing dorsal from ventral in the telencephalon.SIGNIFICANCE STATEMENTWe identified the DMRT3 and DMRT5 zinc finger transcription factors as novel regulators of dorsoventral patterning in the telencephalon. Our data indicate that they have overlapping functions and compensate for one another. The double, but not the single, knock-out produces a dorsal telencephalon that is ventralized, and olfactory bulb tissue takes over most remaining cortex. Conversely, overexpressingDmrt5throughout the telencephalon causes expanded expression of dorsal gene determinants and smaller olfactory bulbs. Furthermore, we show that the homeobox transcription factor EMX2 that is coexpressed with DMRT3 and DMRT5 in cortical progenitors cooperates with them to maintain dorsoventral patterning in the telencephalon. Our study suggests that DMRT3/5 function with EMX2 in positioning the pallial-subpallial boundary by antagonizing the ventral homeobox transcription factor GSX2.
Postnatal Restriction of Activity-Induced Ca2+Responses to Schwann Cells at the Neuromuscular Junction Are Caused by the Proximo-Distal Loss of Axonal Synaptic Vesicles during Development
Authors: Heredia Dante J. , Feng Cheng-Yuan , Agarwal Andrea , Nennecker Kyle , Hennig Grant W. , Gould Thomas W. 
Published: August 2018

Terminal or perisynaptic Schwann cells (TPSCs) are nonmyelinating, perisynaptic glial cells at the neuromuscular junction (NMJ) that respond to neural activity by increasing intracellular calcium (Ca2+) and regulate synaptic function. The onset of activity-induced TPSC Ca2+responses, as well as whether axonal Schwann cells (ASCs) along the nerve respond to nerve stimulation during development, is unknown. Here, we show that phrenic nerve stimulation in developing male and female mice elicited Ca2+responses in both ASCs and TPSCs at embryonic day 14. ASC responses were lost in a proximo-distal gradient over time, but could continue to be elicited by bath application of neurotransmitter, suggesting that a loss of release rather than a change in ASC competence accounted for this response gradient. Similar to those of early postnatal TPSCs, developing ASC/TPSC responses were mediated by purinergic P2Y1receptors. The loss of ASC Ca2+responses was correlated to the proximo-distal disappearance of synaptophysin immunoreactivity and synaptic vesicles in phrenic axons. Accordingly, developing ASC Ca2+responses were blocked by botulinum toxin. Interestingly, the loss of ASC Ca2+responses was also correlated to the proximo-distal development of myelination. Finally, compared with postnatal TPSCs, neonatal TPSCs and ASCs displayed Ca2+signals in response to lower frequencies and shorter durations of nerve stimulation. Together, these results with GCaMP3-expressing Schwann cells provideex vivoevidence that both axons and presynaptic terminals initially exhibit activity-induced vesicular release of neurotransmitter, but that the subsequent loss of axonal synaptic vesicles accounts for the postnatal restriction of vesicular release to the NMJ.SIGNIFICANCE STATEMENTNeural activity regulates multiple aspects of development, including myelination. Whether the excitation of developing neuronsin vivoresults in the release of neurotransmitter from both axons and presynaptic terminals is unclear. Here, using mice expressing the genetically encoded calcium indicator GCaMP3 in Schwann cells, we show that both terminal/perisynaptic Schwann cells at the diaphragm neuromuscular junction and axonal Schwann cells along the phrenic nerve exhibit activity-induced calcium responses early in development, mediated by the vesicular release of ATP from the axons of motor neurons acting on P2Y1receptors. Theseex vivofindings corroborate classicin vitrostudies demonstrating transmitter release by developing axons, and thus represent a tool to study the mechanisms and significance of this process during embryonic development.