bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dinamika Kelompok Tani Hutan pada Pengelolaan Hutan Produksi Bersama Masyarakat di Perum Perhutani Unit I Provinsi Jawa Tengah
Authors: Utama Suwignya , Sumardjo Sumardjo , Susanto Djoko , Gani Darwis S 
Published: May 2017

<p>The collaboration on managing forest resource involves two main actors such as State Forestry<br />Corporation (Perum Perhutani) and forest farmers groups. The objectives of this study are: (1) to explore<br />the conditions of factors that influence group dynamics of forest farmers group (FFG); (2) to explore the<br />condition of group dynamic of forest farmers group and to identify several factors influence the group<br />dynamic (3) to formulate a model of group dynamic of FFG. Several variables are included in this study<br />such as potency of individual farmers, effectiveness of empowerment process, role of facilitators,<br />effectiveness of forest farmers’ group leadershi, environmental supports and group dynamic of FFG. The<br />locations of the study are in three forest districts area of East Pekalongan, South Kedu and Gundih. The<br />preliminary study was carried out in January 2008, and field survey had been accomplished from July to<br />August 2008. Populations of the study are forest villagers around state forest areas in three selected<br />locations of 889.407 families. Method in this study is survey with questionnaire. Respondents of 408<br />farmers were selected through multistage cluster sampling with disproportional number of respondents<br />each location. The research data were processed with descriptive analysis and structural equation<br />modeling (SEM) with LISREL 8.72. The conclusions of the study are: (1) The condition of effectiveness of<br />forest farmers’ group leadership low (score 62); the condition of environmental support is low (score 62)<br />and the condition of facilitators’ role is also low(score 62); (2) Level of group dynamic of forest farmers’<br />group is low. Factors that influence significantly on the low of group dynamic are the low effectiveness of<br />forest farmers’ group leadership, unfavorable environmental supports and low role of facilitators; (3)<br />Model of effective group dynamic are influenced by effectiveness of forest farmers’ group leadership,<br />favorable environmental supports and role of facilitators. Whereas group dynamic consists of goal of the<br />group, group structure and group function.<br />Keywords: Group Dynamic, Forest Villagers, Forest Farmers Group, Collaborative Forest Management, Social Forestry<br /><br /></p>
Karakteristik Adopter pada Masyarakat Nelayan Kampung Cipatuguran Palabuhanratu dalam Penerimaan Teknologi Baru
Authors: Pertiwi Pepi Rospina , Farida Idha , Noviyanti Rinda 
Published: May 2017

<p><em>In extension agriculture, the innovation introduction for goals is the important think especially if the innovation had appropriate with goals needed and its application to raising the goals welfare. This study aimed to explains the fisherman innovativeness level and the adopter characteristic category. Explanatory research design with survey method were used to collect data. The location were choosen with purposively in Kecamatan Palabuhanratu, Kabupaten Sukabumi, Jawa Barat. The population as a whole are all fisherman in Palabuhanratu, and 37 fisherman are chosen randomly as study samples. Data collection is using survey method, and are showed quantitivelly by frequently tabulation and bar chart. This study shows that the fisherman in Kampung Cipatuguran, Palabuhanratu is dominated by high-level in leaderships level, capital ownership, empaty level, abstraction level, dare to take a risk level, futuristic level, partisipation level, and communication activity. Base on asking all of respondents, the degree of innovation tryness was shown medium relatively, decision for adopt the innovation is relatively high, the fearness of take a risk is relatively high, the need of supporting agent of change is relatively high, the appropriate of take a decision is relatively low, the equal of social relationship is relatively high and the relationship with informal leader was is relatively low.</em></p><p><em>Key words: adopter,</em><em> fisherman,</em><em> innovation </em></p>
Partisipasi Masyarakat dalam Pengelolaan Taman Nasional dengan Pola Kemitraan di Kepulauan Togean
Authors: Sangadji Muh Nur , Sumardjo Sumardjo , Asngari Pang S , Soewito Soenarmo H 
Published: May 2017

<p><em>The aim of this research are: (1) to analyze the level of community participation on management of Togean Island National Park. (2) to analyze the factors that influence the community participation. (3) to analyze the correlation of the factors that influence the community participation, and (4) to formulate a strategy of extension to increase the effective of community participation on management of Togean Island National Park. The research was conducted in Togean Island National Park in Central Sulawesi on August to Septembre 2008 and March to April 2009. Five variables are used to measure the community participation by using Structural Equation Model (SEM) and LISEREL 8.30. Those variables are internal individu, extension process, exsternal factor, community capacity and community </em><em>p</em><em>articipation. The result of research shown that participation of community is on the low level. Extension procces and external factor have a significant effect on community capacity. Internal characteristic and community capacity have a significant effect on community participation The independent variables such as internal characteristic, extension process and external factor have significant correlation. The strategy that can be used to increase the community participation is to improve the process of extension by giving the opportunity to community for involving on management of Togean Island National Park. This strategy should be supported by government policy to apply consistently, the partnership approach on management of </em><em>n</em><em>ational </em><em>p</em><em>ark in the local level.</em></p><p> </p><em>Keywords: community participaton, capacity, national park and extension process.</em>
Manajemen Sumberdaya Keluarga Peserta Program Pemberdayaan Masyarakat di Kabupaten Bogor
Authors: Herawati Tin , Sugihen Basita Ginting , Asngari Pang S , Susanto Djoko , Puspitawati Herien 
Published: May 2017

<p><em>Nowdays it is difficult for many families to achieve an ideal life, this situation cause, formulation managing human resource which has a good quality is not optimal. The important thing must be carried out to make the families maintain their life is to manage the limited resource by the family resource management. This research analyzed the family resource management of participant in empowerment program and the factors that influenced them. The research design was crossectional study using survey method to collect data from 300 respondents. The result showed that highest percentage of respondent carried out the family resource management categorized as bad. There was a significant difference between the family resource management at Dramaga District and Leuwisadeng District or Pamijahan District (α&lt;0.05). The factors which significantly influence the family resource management are income per capita, the family communication quality, the occupation status of spouse and the participation in extension program.</em></p><p><em>Keywords: family resource management, community empowerment, income per capita, extension program, communication quality</em></p><p> </p>
Natural frequency optimization of vehicle components using the interior search algorithm
Authors: Yıldız Betül Sultan 
Published: May 2017

Abstract
In the automotive industry, optimum design must be achieved to compete with strong competitors. Thus, it is aimed to reduce the cost, increase the quality and reduce the total production time. In this study, the natural frequency optimization of a vehicle sliding door linkage used to open and close the sliding doors on vehicles was made. In the optimization study for determining the optimum design model of the vehicle sliding door linkage, natural frequency was increased by 22.8 % using internal search algorithm.
Effects of stacking sequence on mechanical properties of hybrid composites reinforced with carbon, Kevlar and S-glass fibers
Authors: Bulut Mehmet , Erkliğ Ahmet , Alsaadi Mohamad , Kchany Sarkaut 
Published: May 2017

Abstract
This study explores the influences of laminates stacking sequence configuration on the mechanical behavior of hybrid composites. The woven carbon, Kevlar and S-glass fibers with epoxy resin were used to produce hybrid composite specimens in addition to full composites. The hybrid specimens were prepared by introducing different fiber volume fractions between carbon/glass, carbon/Kevlar, glass/Kevlar and carbon/glass/Kevlar fibers. Stacking sequence and fibers in outer skin of the laminates obviously showed the effective influence on tensile and flexural strength with modulus. The maximum change in tensile strength due to hybridization effect was achieved with carbon/glass epoxy laminate by replacing the two face sheets of the carbon fibers with glass fibers, resulting in an increase of tensile strength by 60 % according to full carbon/epoxy laminates. On the other hand, flexural strength of glass/Kevlar hybrid laminates showed the highest hybrid effect, resulting in 78 % increase according to full Kevlar/epoxy composites.
Numerical parameters for deep drawing simulation of a double bowl sink
Authors: Sener Bora , Yurci Mehmet Emin 
Published: May 2017

Abstract
Numerical parameters have significant impact on the results of finite element simulations. Wrong selection of these parameters causes erroneous results and too long computation time in the analyses. Therefore, numerical parameters should be selected properly in order to obtain accurate results in the finite element simulations. In this study, the effects of the numerical parameters used in finite element simulations are investigated. Deep drawing of a double bowl sink is modeled and simulations are done with different parameters. Influences of element size and refinement level on the blank, the effect of the number of elements on the die radius and dynamic effects are investigated and optimum parameters are determined. The results obtained are compared with experimental data, and a good agreement is observed.
Moth-flame optimization algorithm to determine optimal machining parameters in manufacturing processes
Authors: Yıldız Betül Sultan , Yıldız Ali Rıza 
Published: May 2017

Abstract
In this research, a newly developed moth-flame optimization algorithm (MFO) is presented for solving optimization problems in manufacturing industry. A well-known milling optimization problem is solved to emphasize the effectiveness of the MFO in the optimization of manufacturing problems. In the optimization problem solved in this paper, the main aim is to maximize the profit rate for multi-tool milling operations considering difficult constraints. The results demonstrate that the MFO is an effective optimization method for the solution of manufacturing optimization problems.
Hydrogen assisted cracking in a high strength dual phase steel DP1180HY
Authors: Kröger Benjamin , Holbein Reinhold , Klose Stephan G. 
Published: May 2017

Abstract
Important objectives when using high strength steel materials in the automotive industry are to reduce the weight and therefore the energy consumption of motor vehicles. Suitable test methods must be used to characterize the material specific properties in relation to hydrogen induced effects so that the materials can be used safely in body structures. Strained bend specimens and 4-point loaded specimens were used for this work. Both test methods have specific advantages and disadvantages and provide meaningful results in regard to the time delay in hydrogen assisted brittle fractures. Fundamental insights were obtained regarding the test procedure and the development of test methods for the impact of hydrogen on steel during manufacture and operation of respective components.
A new tool for touch-free patient registration for robot-assisted intracranial surgery: application accuracy from a phantom study and a retrospective surgical series
Authors: Cardinale Francesco , Rizzi Michele , d’Orio Piergiorgio , Casaceli Giuseppe , Arnulfo Gabriele , Narizzano Massimo , Scorza Davide , De Momi Elena , Nichelatti Michele , Redaelli Daniela , Sberna Maurizio , Moscato Alessio , Castana Laura 
Published: May 2017

OBJECTIVEThe purpose of this study was to compare the accuracy of Neurolocate frameless registration system and frame-based registration for robotic stereoelectroencephalography (SEEG).METHODSThe authors performed a 40-trajectory phantom laboratory study and a 127-trajectory retrospective analysis of a surgical series. The laboratory study was aimed at testing the noninferiority of the Neurolocate system. The analysis of the surgical series compared Neurolocate-based SEEG implantations with a frame-based historical control group.RESULTSThe mean localization errors (LE) ± standard deviations (SD) for Neurolocate-based and frame-based trajectories were 0.67 ± 0.29 mm and 0.76 ± 0.34 mm, respectively, in the phantom study (p = 0.35). The median entry point LE was 0.59 mm (interquartile range [IQR] 0.25–0.88 mm) for Neurolocate-registration–based trajectories and 0.78 mm (IQR 0.49–1.08 mm) for frame-registration–based trajectories (p = 0.00002) in the clinical study. The median target point LE was 1.49 mm (IQR 1.06–2.4 mm) for Neurolocate-registration–based trajectories and 1.77 mm (IQR 1.25–2.5 mm) for frame-registration–based trajectories in the clinical study. All the surgical procedures were successful and uneventful.CONCLUSIONSThe results of the phantom study demonstrate the noninferiority of Neurolocate frameless registration. The results of the retrospective surgical series analysis suggest that Neurolocate-based procedures can be more accurate than the frame-based ones. The safety profile of Neurolocate-based registration should be similar to that of frame-based registration. The Neurolocate system is comfortable, noninvasive, easy to use, and potentially faster than other registration devices.
Current applications of robotics in spine surgery: a systematic review of the literature
Authors: Joseph Jacob R. , Smith Brandon W. , Liu Xilin , Park Paul 
Published: May 2017

OBJECTIVESurgical robotics has demonstrated utility across the spectrum of surgery. Robotics in spine surgery, however, remains in its infancy. Here, the authors systematically review the evidence behind robotic applications in spinal instrumentation.METHODSThis systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. Relevant studies (through October 2016) that reported the use of robotics in spinal instrumentation were identified from a search of the PubMed database. Data regarding the accuracy of screw placement, surgeon learning curve, radiation exposure, and reasons for robotic failure were extracted.RESULTSTwenty-five studies describing 2 unique robots met inclusion criteria. Of these, 22 studies evaluated accuracy of spinal instrumentation. Although grading of pedicle screw accuracy was variable, the most commonly used method was the Gertzbein and Robbins system of classification. In the studies using the Gertzbein and Robbins system, accuracy (Grades A and B) ranged from 85% to 100%. Ten studies evaluated radiation exposure during the procedure. In studies that detailed fluoroscopy usage, overall fluoroscopy times ranged from 1.3 to 34 seconds per screw. Nine studies examined the learning curve for the surgeon, and 12 studies described causes of robotic failure, which included registration failure, soft-tissue hindrance, and lateral skiving of the drill guide.CONCLUSIONSRobotics in spine surgery is an emerging technology that holds promise for future applications. Surgical accuracy in instrumentation implanted using robotics appears to be high. However, the impact of robotics on radiation exposure is not clear and seems to be dependent on technique and robot type.
Intelligent control of neurosurgical robot MM-3 using dynamic motion scaling
Authors: Ko Sunho , Nakazawa Atsushi , Kurose Yusuke , Harada Kanako , Mitsuishi Mamoru , Sora Shigeo , Shono Naoyuki , Nakatomi Hirofumi , Saito Nobuhito , Morita Akio 
Published: May 2017

OBJECTIVEAdvanced and intelligent robotic control is necessary for neurosurgical robots, which require great accuracy and precision. In this article, the authors propose methods for dynamically and automatically controlling the motion-scaling ratio of a master-slave neurosurgical robotic system to reduce the task completion time.METHODSThree dynamic motion-scaling modes were proposed and compared with the conventional fixed motion-scaling mode. These 3 modes were defined as follows: 1) the distance between a target point and the tip of the slave manipulator, 2) the distance between the tips of the slave manipulators, and 3) the velocity of the master manipulator. Five test subjects, 2 of whom were neurosurgeons, sutured 0.3-mm artificial blood vessels using the MM-3 neurosurgical robot in each mode.RESULTSThe task time, total path length, and helpfulness score were evaluated. Although no statistically significant differences were observed, the mode using the distance between the tips of the slave manipulators improves the suturing performance.CONCLUSIONSDynamic motion scaling has great potential for the intelligent and accurate control of neurosurgical robots.
Modeling the Radio Foreground for Detection of CMB Spectral Distortions from the Cosmic Dawn and the Epoch of Reionization
Authors: Sathyanarayana Rao Mayuri , Subrahmanyan Ravi , Shankar N Udaya , Chluba Jens 
Published: May 2017

Abstract
Cosmic baryon evolution during the Cosmic Dawn and Reionization results in redshifted 21-cm spectral distortions in the cosmic microwave background (CMB). These encode information about the nature and timing of first sources over redshifts 30–6 and appear at meter wavelengths as a tiny CMB distortion along with the Galactic and extragalactic radio sky, which is orders of magnitude brighter. Therefore, detection requires precise methods to model foregrounds. We present a method of foreground fitting using maximally smooth (MS) functions. We demonstrate the usefulness of MS functions over traditionally used polynomials to separate foregrounds from the Epoch of Reionization (EoR) signal. We also examine the level of spectral complexity in plausible foregrounds using GMOSS, a physically motivated model of the radio sky, and find that they are indeed smooth and can be modeled by MS functions to levels sufficient to discern the vanilla model of the EoR signal. We show that MS functions are loss resistant and robustly preserve EoR signal strength and turning points in the residuals. Finally, we demonstrate that in using a well-calibrated spectral radiometer and modeling foregrounds with MS functions, the global EoR signal can be detected with a Bayesian approach with 90% confidence in 10 minutes’ integration.
Dynamical Friction and the Evolution of Supermassive Black Hole Binaries: The Final Hundred-parsec Problem
Authors: Dosopoulou Fani , Antonini Fabio 
Published: May 2017

Abstract
The supermassive black holes originally in the nuclei of two merging galaxies will form a binary in the remnant core. The early evolution of the massive binary is driven by dynamical friction before the binary becomes “hard” and eventually reaches coalescence through gravitational-wave emission. We consider the dynamical friction evolution of massive binaries consisting of a secondary hole orbiting inside a stellar cusp dominated by a more massive central black hole. In our treatment, we include the frictional force from stars moving faster than the inspiralling object, which is neglected in the standard Chandrasekhar treatment. We show that the binary eccentricity increases if the stellar cusp density profile rises less steeply than

. In cusps shallower than

, the frictional timescale can become very long due to the deficit of stars moving slower than the massive body. Although including fast stars increases the decay rate, low mass-ratio binaries (

) in sufficiently massive galaxies have decay timescales longer than one Hubble time. During such minor mergers, the secondary hole stalls on an eccentric orbit at a distance of order one-tenth the influence radius of the primary hole (i.e.,

for massive ellipticals). We calculate the expected number of stalled satellites as a function of the host galaxy mass and show that the brightest cluster galaxies should have

of such satellites orbiting within their cores. Our results could provide an explanation for a number of observations, which include multiple nuclei in core ellipticals, off-center AGNs, and eccentric nuclear disks.
The Proper Motion of Pyxis: The First Use of Adaptive Optics in Tandem with HST on a Faint Halo Object
Authors: Fritz T. K. , Linden S. T. , Zivick P. , Kallivayalil N. , Beaton R. L. , Bovy J. , Sales L. V. , Sohn T. , Angell D. , Boylan-Kolchin M. , Carrasco E. R. , Damke G. , Davies R. , Majewski S. , Neichel B. , Marel R. van der 
Published: May 2017

Abstract
We present a proper motion measurement for the halo globular cluster Pyxis, using Hubble Space Telescope/ACS data as the first epoch and GeMS/GSAOI Adaptive Optics data as the second, separated by a baseline of ∼5 years. This is both the first measurement of the proper motion of Pyxis and the first calibration and use of Multi-Conjugate Adaptive Optics data to measure an absolute proper motion for a faint, distant halo object. Consequently, we present our analysis of the Adaptive Optics data in detail. We obtain a proper motion of

= 1.09 ± 0.31 mas yr−1 and μ

δ
= 0.68 ± 0.29 mas yr−1. From the proper motion and line-of-sight velocity, we find that the orbit of Pyxis is rather eccentric, with its apocenter at more than 100 kpc and its pericenter at about 30 kpc. We also investigate two literature-proposed associations for Pyxis with the recently discovered ATLAS stream and the Magellanic system. Combining our measurements with dynamical modeling and cosmological numerical simulations, we find it unlikely Pyxis is associated with either system. We examine other Milky Way satellites for possible association using the orbit, eccentricity, metallicity, and age as constraints and find no likely matches in satellites down to the mass of Leo II. We propose that Pyxis probably originated in an unknown galaxy, which today is fully disrupted. Assuming that Pyxis is bound and not on a first approach, we derive a 68% lower limit on the mass of the Milky Way of 0.95 × 1012
M
⊙.