bluuebunny/crossref_metadata_2025 huggingface dataset:
Diseño de las listas ABC de material consumible aplicables a las nuevas inspecciones PM-1 y PM-2 de los helicópteros
Authors: Silva Martínez Diego Hernán , Gónzalez Romero Andrés Oscar
Published: November 2015

El proyecto de investigación se inició a partir de la implementación de un nuevo sistema de mantenimiento por parte del Comando Aéreo de Comando No. 5, siguiendo las instrucciones del boletín técnico TB-1520- 237-20-266 del Ejército de los Estados Unidos (US ARMY). Para obtener un alto grado de confiabilidad en los resultados de la investigación se utilizó la plataforma de planeamiento de recursos empresariales SAP, como fuente básica de información para el desarrollo del presente trabajo.
Technology-Enhanced instruction in learning world languages: The middlebury interactive learning program
Authors: Lake Cynthia , Ross Steven M.
Published: November 2015

Middlebury Interactive Language (MIL) programs are designed to teach world language courses using blended and online learning for students in kindergarten through grade 12. Middlebury Interactive courses start with fundamental building blocks in four key areas of world-language study: listening comprehension, speaking, reading, and writing. As students progress through the course levels, they deepen their understanding of the target language, continuing to focus on the three modes of communication: interpretive, interpersonal, and presentational. The extensive use of authentic materials (video, audio, images, or texts) is intended to provide a contextualized and interactive presentation of the vocabulary and the linguistic structures. In the present paper, we describe the MIL program and the results of a mixed-methods survey and case-study evaluation of its implementation in a broad sample of schools. Technology application is examined with regard to MIL instructional strategies and the present evaluation approach relative to those employed in the literature. 

Keywords: Middlebury Interactive Language, materials, technology.
Do teachers and students get the ed-tech products they need: The challenges of ed-tech procurement in a rapidly growing market
Authors: Morrison Jennifer , Ross Steven M. , Corcoran Roisin P.
Published: November 2015

Ed-tech courseware products to support teaching and learning are being developed and made available for acquisition by school districts at a rapid rate.Â  In this growing market, developers and providers face challenges with making their products visible to customers, while school district stakeholders must grapple with â€œdiscoveringâ€ which products of the many available best address their instructional needs.Â  The present study presents the experiences with and perceptions about the procurement process from 47 superintendents representing diverse school districts in the U. S.Â  Results indicate that, while improvements are desired in many aspects of the procurement process, the superintendents, overall, believe that, once desired products are identified, they are generally able to acquire them.Â  Difficulties lie in tighter budgets, discovering products that are potentially the best choices, and evaluating the effectiveness of the products selected as options.Â  These findings are presented and interpreted in relation to five major â€œAction Pointsâ€ in the procurement process, and also with regard to implications for evaluating how educational technology impacts K-12 instruction.Â Keywords: Ed-tech, school districts, K-12.
The effect of simulation methods in teaching physics on studentsâ€™ academic success
Authors: Hursen Cigdem , Asiksoy Gulsum
Published: November 2015

The aim of this study is to determine the effect of simulation methods in teaching physics on studentsâ€™ academic success.70 students (35 control, 35 experimental) who studied at the Near East University Faculty of Education, in the Department of Computer Education and Educational Technology, in 2013-2104 academic year participated in this research. Mixed methods approaches, which included both qualitative and quantitative methods, were used in the research. Instructional transaction included the subject of â€œShootingâ€ in the â€œMovements on Earthâ€ unit. Statistical results of the data obtained after the application showed that students of the experimental group who were taught using simulations were more successful than the students of the control group who were taught by the traditional approach. Also, it was determined that students of the experimental group were satisfied by simulation-based Physics education.

Keywords: physics education, simulation-based education, education technology.
Implant Abutment Cleaning by Plasma of Argon: 5‐Year Follow‐Up of a Randomized Controlled Trial
Authors: Canullo Luigi , Tallarico Marco , Peñarrocha‐Oltra David , Monje Alberto , Wang Hom‐Lay , Peñarrocha‐Diago Miguel
Published: November 2015

Background: Contamination of implant abutments could potentially influence the peri‐implant tissue inflammatory response. The aim of the present study is to assess the radiographic bone changes around customized, platform‐switched abutments placed according to the “one‐abutment‐one‐time” protocol, with and without plasma of argon cleaning treatment.

Methods: Thirty healthy patients with thin gingival biotype (<1 mm) and history of periodontal disease received one maxillary implant each. Immediately before abutment connection, patients were randomly assigned to control group (cleaning protocol by steaming) or test group (plasma of argon treatment). Outcome measures were: 1) success rate of implants and prostheses; 2) biologic and prosthetic complications; 3) peri‐implant marginal bone loss (MBL); 4) esthetic and periodontal parameters; and 5) patient satisfaction.

Results: Neither implants nor prostheses were lost in either group at the 5‐year follow‐up examination. Overall, both groups showed a slight amount of peri‐implant bone loss from baseline to 5 years. A statistically higher mean MBL was found in the control group compared with the test group at 6, 24, and 60 months after crown connection. Nevertheless, during the entire follow‐up period, intragroup comparison demonstrated statistically significant mean MBL in the control group, but not in the test group. The test group showed a higher mean gain at the soft tissue margin, but not for the papilla. All implants showed good periodontal parameters, with no significant differences between groups.

Conclusion: Plasma of argon could be used to disinfect implant abutments before insertion to minimize future peri‐implant bone resorption.
Accelerated Adoption of Smoke-Free Laws After Ratification of the World Health Organization Framework Convention on Tobacco Control
Authors: Uang Randy , Hiilamo Heikki , Glantz Stanton A.
Published: November 2015

Objectives. We sought to evaluate the effect of ratifying the World Health Organization Framework Convention on Tobacco Control (FCTC) on countries enacting smoke-free laws covering indoor workplaces, restaurants, and bars.

Methods. We compared adoption of smoke-free indoor workplace, restaurant, and bar laws in countries that did versus did not ratify the FCTC, accounting for years since the ratification of the FCTC and for countries’ World Bank income group.

Results. Ratification of the FCTC significantly (P < .001) increased the probability of smoke-free laws. This effect faded with time, with a half-life of 3.1 years for indoor workplaces and 3.8 years for restaurants and bars. Compared with high-income countries, upper-middle–income countries had a significantly higher probability of smoke-free indoor workplace laws.

Conclusions. The FCTC accelerated the adoption of smoke-free indoor workplace, restaurant, and bar laws, with the greatest effect in the years immediately following ratification. The policy implication is that health advocates must increase efforts to secure implementation of FCTC smoke-free provisions in countries that have not done so.
Differential Child Maltreatment Risk Across Deployment Periods of US Army Soldiers
Authors: Taylor Christine M. , Ross Michelle E. , Wood Joanne N. , Griffis Heather M. , Harb Gerlinde C. , Mi Lanyu , Song Lihai , Strane Douglas , Lynch Kevin G. , Rubin David M.
Published: November 2015

Objectives. We described the risk for maltreatment among toddlers of US Army soldiers over different deployment cycles to develop a systematic response within the US Army to provide families appropriate supports.

Methods. We conducted a person-time analysis of substantiated maltreatment reports and medical diagnoses among children of 112 325 deployed US Army soldiers between 2001 and 2007.

Results. Risk of maltreatment was elevated after deployment for children of soldiers deployed once but not for children of soldiers deployed twice. During the 6 months after deployment, children of soldiers deployed once had 4.43 substantiated maltreatment reports and 4.96 medical diagnoses per 10 000 child-months. The highest maltreatment rate among children of soldiers deployed twice occurred during the second deployment for substantiated maltreatment (4.83 episodes per 10 000 child-months) and before the first deployment for medical diagnoses of maltreatment (3.78 episodes per 10 000 child-months).

Conclusions. We confirmed an elevated risk for child maltreatment during deployment but also found a previously unidentified high-risk period during the 6 months following deployment, indicating elevated stress within families of deployed and returning soldiers. These findings can inform efforts by the military to initiate and standardize support and preparation to families during periods of elevated risk.
Systematic Motorcycle Management and Health Care Delivery: A Field Trial
Authors: Mehta Kala M. , Rerolle Francois , Rammohan Sonali V. , Albohm Davis C. , Muwowo George , Moseson Heidi , Sept Lesley , Lee Hau L. , Bendavid Eran
Published: November 2015

Objectives. We investigated whether managed transportation improves outreach-based health service delivery to rural village populations.

Methods. We examined systematic transportation management in a small-cluster interrupted time series field trial. In 8 districts in Southern Zambia, we followed health workers at 116 health facilities from September 2011 to March 2014. The primary outcome was the average number of outreach trips per health worker per week. Secondary outcomes were health worker productivity, motorcycle performance, and geographical coverage.

Results. Systematic fleet management resulted in an increase of 0.9 (SD = 1.0) trips to rural villages per health worker per week (P < .001), village-level health worker productivity by 20.5 (SD = 5.9) patient visits, 10.2 (SD = 1.5) measles immunizations, and 5.2 (SD = 5.4) child growth assessments per health worker per week. Motorcycle uptime increased by 3.5 days per week (P < .001), use by 1.5 days per week (P < .001), and mean distance by 9.3 kilometers per trip (P < .001). Geographical coverage of health outreach increased in experimental (P < .001) but not control districts.

Conclusions. Systematic motorcycle management improves basic health care delivery to rural villages in resource-poor environments through increased health worker productivity and greater geographical coverage.
Evaluating Public Health Interventions: 1. Examples, Definitions, and a Personal Note
Authors: Spiegelman Donna
Published: November 2015

In the first contribution to a new section in AJPH that will address critical methodological issues in evaluations of public health interventions, I will discuss topics in study design and analysis, covering the most innovative emerging methodologies and providing an overview of best practices. The methods considered are motivated by public health evaluations, both domestic and global. In this first contribution, I also define implementation science, program evaluation, impact evaluation, and cost-effectiveness research, disciplines that have tremendous methodological and substantive overlap with evaluation of public health interventions—the focus of this section.
Chinese Immigrant Religious Institutions’ Variability in Views on Preventing Sexual Transmission of HIV
Authors: Chin John J. , Neilands Torsten B.
Published: November 2015

Objectives. We examined Chinese immigrant religious institutions’ views on teaching about preventing sexual transmission of HIV and the consistency of their views with public health best practices in HIV prevention.

Methods. We used 2009 to 2011 survey data from 712 members of 20 New York City–based Chinese immigrant religious institutions to analyze their views on (1) teaching adolescents about condoms, (2) discussing homosexuality nonjudgmentally, and (3) promoting abstinence until marriage.

Results. Religion type was a significant predictor of views in the 3 domains, with Evangelical Protestants in least agreement with public health best practices, Buddhists in most agreement, and mainline Protestants between them. Greater HIV knowledge was significantly associated with agreement with best practices in all 3 domains. The frequency of prayer, meditation, or chanting and the level of acculturation were significant predictors of views on teaching adolescents about condoms and promoting abstinence until marriage.

Conclusions. The best practice messages about HIV prevention that Chinese immigrant religious institutions find acceptable vary according to religion type and several other key factors, including HIV knowledge; frequency of prayer, meditation, or chanting; and level of acculturation.
Access to Care and Chronic Disease Outcomes Among Medicaid-Insured Persons Versus the Uninsured
Authors: Christopher Andrea S. , McCormick Danny , Woolhandler Steffie , Himmelstein David U. , Bor David H. , Wilper Andrew P.
Published: November 2015

Objectives. We sought to determine the association between Medicaid coverage and the receipt of appropriate clinical care.

Methods. Using the 1999 to 2012 National Health and Nutritional Examination Surveys, we identified adults aged 18 to 64 years with incomes below the federal poverty level, and compared outpatient visit frequency, awareness, and control of chronic diseases between the uninsured (n = 2975) and those who had Medicaid (n = 1485).

Results. Respondents with Medicaid were more likely than the uninsured to have at least 1 outpatient physician visit annually, after we controlled for patient characteristics (odds ratio [OR] = 5.0; 95% confidence interval [CI] = 3.8, 6.6). Among poor persons with evidence of hypertension, Medicaid coverage was associated with greater awareness (OR = 1.83; 95% CI = 1.26, 2.66) and control (OR = 1.69; 95% CI = 1.32, 2.27) of their condition. Medicaid coverage was also associated with awareness of being overweight (OR = 1.30; 95% CI = 1.02, 1.67), but not with awareness or control of diabetes or hypercholesterolemia.

Conclusions. Among poor adults nationally, Medicaid coverage appears to facilitate outpatient physician care and to improve blood pressure control.
Delayed Erosion of a Pelvic Reconstruction Plate into the Bladder Causing Recurrent Urinary Tract Infections
Authors: Babu Jacob , Shah Kalpit N. , Mansuripur P. Kaveh , Hayda Roman
Published: November 2015

Case:

A forty-seven-year-old woman presented with recurrent urinary tract infections eleven years after open fixation of a pelvic ring injury. Cystoscopy revealed that the pelvic reconstruction plate had eroded into the bladder, likely the source of the recurrent infections. Following removal of the involved pelvic hardware and repair of the bladder, the patient had no further urinary tract infections.

Conclusion:

Operative fixation of osseous pelvic injuries places metal implants in proximity to the bladder. Late erosion of hardware into the bladder can occur. A low threshold for urological work-up should be maintained for recurrent genitourinary symptoms in these patients.
Anterior Percutaneous Hemiepiphysiodesis of the Distal Aspect of the Femur: A New Technique
Authors: Kay Robert M. , Rethlefsen Susan A.
Published: November 2015

Case:

Anterior distal femoral hemiepiphysiodesis for knee flexion deformity in children is typically done using staples or plate-and-screw constructs. Staple migration and postoperative knee pain are common complications associated with these procedures. The authors describe a new technique of percutaneous epiphysiodesis using transphyseal screws (PETS) for anterior hemiepiphysiodesis of the distal aspect of the femur that was used to treat recurrent knee flexion deformity in a child with cerebral palsy who had recurrent crouch gait after hamstring lengthening.

Conclusion:

The technique has the advantage of being less expensive than plate-and-screw constructs, and it has the potential for causing less postoperative knee pain.
Drought‐Tolerant Corn Hybrid Response to Nitrogen Application Rate in Ohio
Authors: Lindsey Alexander J. , Thomison Peter R. , Barker David J. , Mullen Robert W.
Published: November 2015

Modern drought‐tolerant corn (Zea mays L.) hybrids may produce similar biomass and yield using less water compared to conventional hybrids, but changes in water use efficiency or plant characteristics may impact the nitrogen (N) requirement to optimize yield. A field study was conducted at two locations in 2013 and 2014 to investigate plant growth and grain yield response of four corn hybrids differing in drought tolerance and maturity to five sidedress N rates (0, 60, 120, 180, and 240 lb N A−1). Morphological characteristics including height, relative chlorophyll content (RCC), and ear‐leaf N were measured at selected growth stages. Grain yield was measured at maturity, and the agronomic optimum N rate (AONR) and economic optimum N rate (EONR) were calculated using a quadratic plus plateau regression model. At the blister stage (R2), drought‐tolerant hybrids were 3% taller and had 3 and 5% lower RCC and ear‐leaf N content, respectively, than the conventional hybrids. Grain yield at the AONR and EONR was similar regardless of hybrid (<5%), and the AONR and EONR were 3 to 11% greater for the drought‐tolerant hybrids in three of the four site‐years (SY). The results suggest these drought‐tolerant hybrids can be managed following current N rate recommendations for Ohio, but future studies should evaluate additional drought‐tolerant hybrids in more diverse environments to validate these findings.
Reframing public interest in the implementation of large urban projects in Serbia: The case of Belgrade Waterfront Project
Authors: Lalovic Kseniјa , Radosavljevic Uros , Djukanovic Zoran
Published: November 2015

Entrepreneurial urban governments around the world use large-scale projects
for promoting cities as a place for enhanced quality of life and attracting
investment from an international level. However, large urban projects
frequently challenge democratic planning and public interest, and break up
conventional city planning models. We argue that the changed city
government?s entrepreneurial role calls for reframing the public interest,
taking into consideration both global private interests and sustainable
impacts and benefits for varieties of local public interests. The paper
presents the case of Belgrade Waterfront Project. Results show an efficient
entrepreneurial direction of the Serbian national government, contrary to the
worldwide experiences where urban governments take the lead. Still, it is
questionable whether the outcomes will be just and fair, especially when it
comes to "winners" and "losers". We place equity at the top of agenda for
public officials and planners in the implementation of large-scale projects.
Therefore, we believe there are varieties of public interests on various
spatial levels, defined by politicians, explored by planning experts?, and
accepted by the citizens for obtaining broader social support.
Arcitecture - inclusive culture: Protection of persons with disabilities
Authors: Vasiljevic-Tomic Dragana , Obradovic Radojko
Published: November 2015

The paper has analyzed the contemporary standards that all democracies have
embraced. A special emphasis has been placed on international conventions and
rules, as well as the laws to protect the rights of all members of a modern
social community. It is its duty to look after all its members and eliminate
any form of discrimination, and even a threat of it. The European Concept for
Accessibility promotes a new social model, designed to change entirely the
attitude to the handicapped. The Concept offers a completely new approach,
viewing the community as a whole. This integrated approach stretches to the
needs of the community and the needs of each and every member of it, making
no difference between individual groups within the population. Instead, it
creates the environment to satisfy the needs of each individual member and,
by extension, the community at large. The role of architecture is to
recognize the needs of a community and take the lead in reshaping the
standards to create a new environment accessible to all its members. This
will give architecture a fundamental dimension, and make it the integrative
factor to blend the community together.
Financing of the category I and II state road maintenance in the Republic of Serbia
Authors: Borovac Zivota
Published: November 2015

Investment in roads, apart from traffic benefits, has significant effect on
development due to influence on overall commercial flows. Road maintenance
works serve the purposes of built roads which are primarily to ensure safety
of traffic flow, transport of population and goods, to connect people and to
improve their living and working conditions. Maintenance works are required
for protection of roads, as civil engineering structure, against damaging
influences, or in other words real value and usability of road shall be kept
(protection of previously invested capital). Therefore, roads have to be
maintained continuously in order to be achieved undisturbed and safe traffic
flow. Current traffic-economic development needs have surpassed available
funds in great extent. Financing system of state roads of category I and II
has not ensured sufficient and stable funds for the required level of
investment.
Causal closure of physics and the formulation of physicalism
Authors: Dimitrijevic Dejan
Published: November 2015

Physicalism is an ontological doctrine according to which everything in the
world is physical in the last instance. This is usually interpreted as a
claim that every non-physical, most notably every mental property can either
be reduced to some physical property or shown to supervene on it. The main
obstacle in an attempt to formulate physicalism properly is Hempel?s dilemma,
and the most promising strategy of taking this dilemma is based on the
argument from causal closure of physics. After analyzing the strengths and
weaknesses of this approach, I argue that it is highly controversial and thus
unable to support a strong ontological commitment.
On individuality in quantum theory
Authors: Jeknic-Dugic Jasmina
Published: November 2015

A quantum mechanical analysis of the decomposability of quantum systems into
subsystems provides support for the so-called "attenuated Eliminative Ontic
Structural Realism" within Categorical Structuralism studies in physics.
Quantum subsystems are recognized as non-individual, relationally defined
objects that deflate or relax some standard objections against Eliminative
Ontic Structural Realism. Our considerations assume the universally valid
quantum theory without tackling interpretational issues.
The effect of storage temperature and thermal processing on catechins, procyanidins and total flavonoid stability in commercially available cocoa powders
Authors: Mrmosanin Jelena , Pavlovic Aleksandra , Veljkovic Jovana , Mitic Snezana , Tosic Snezana , Mitic Milan
Published: November 2015

Storage stability of catechin, epicatechin, procyanidins B1-B4 and total
flavonoids in cocoa powder samples was studied over the temperature range
4-35?C. Thermal stability of total flavonoids was studied over the
temperature range 95-125?C. Total flavonoids concentration decreased as a
function of time and the degradation was accelerated at higher temperatures:
a half-life (t1/2) of total flavonoids was much shorter at room temperature
than during cold storage. A first-order kinetic model fitted well to all the
data. Temperature dependence of the degradation rate constants, described by
the Arrhenius equation, was more pronounced during heating than during
storage. In the temperature interval from 4?C to 35?C, the calculated
activation energies (Ea) for catechin, epicatechin and procyanidins B1-B4
were 20.4 kJ/mol, 12.5 kJ/mol, 9.4 kJ/mol, 21.6 kJ/mol, 19.4 kJ/mol, 23.7
kJ/mol, respectively.
Synthesis, morpho-structural characterization and electrophoretic deposition of aegirine obtained by the hydrothermal method in the Si-Fe-Na-H2O system
Authors: Randjelovic Marjan
Published: November 2015

Aegirine belongs to a group of minerals known as inosilicates. In this study,
a fast and efficient procedure is proposed for the synthesis of aegirine
nanoparticles by means of the hydrothermal process, starting from a
suspension of simple hydroxide/silicate precursors. Structural properties of
the obtained mineral were assessed by the XRD technique. It was found that
aegirine was the only crystalline phase present. The expected needle-like
morphology, characteristic of inosilicates, was confirmed by scanning
electron microscopy (SEM). Through an appropriate selection of solvents and
dispersants, an electrophoretic deposition and immobilization of aegirine on
stainless steel was achieved. Native layers of aegirine displayed a very
smooth morphology, while after calcination, a detachment of the layers from
the stainless steel substrate and the appearance of cracks in the coating was
observed. This phenomenon could be prevented by the use of appropriate
additives.
Rehabilitation of a secondary network of forest traffic infrastructure (skid roads - skid trails)
Authors: Bajric Muhamed , Sokolovic Dzevada
Published: November 2015

Forest transport infrastructure is the key segment of rational forest
resource management. One of its constituent and inseparable segments are
skid roads and skid trails whose network density significantly exceeds the
primary network, i.e. truck roads. Skid road -skid trail network density in
high economic forests of FB&H is most often between 40 and 100 m/ha.
Simplified way of construction, non-existence of road construction, objects
for surface water drainage as well as significant longitudinal inclination
(up to 50%) in which they are constructed, makes them subject to erosion
processes. The lack of rehabilitation measures on skid roads - skid trails
causes significant damages in post-exploitation period, and very often to
the extent that the ones in the following exploitation round are unusable
for skidding. Utilization of skid roads - skid trails damaged by erosion
processes for forest operations often represents a significant expense. This
paper considers rehabilitation measures efficient from the point of
remedying erosion processes, and at the same time, acceptable from the point
of financial expenditure for forest operations.
Work efficiency in the operations of juvenile thinning of mixed stands of pedunculate oak with hornbeam, ash and other hard broadleaves with the Stihl MS 260 chainsaw
Authors: Danilovic Milorad , Djordjevic Zoran , Antonic Slavica
Published: November 2015

This paper presents the results of research of efficacy of the lightweight
low power chainsaw Stihl MS 260 in the operations of juvenile thinning in
preserved even-aged mixed stands of pedunculate oak with hornbeam, ash and
other hard hardwoods. The investigations were carried out in the territory of
FE ?Sremska Mitrovica? in three sample plots of different ages. It is the
first research of this kind based on the choice of optimal technological
solution for the cleaning cuts of oak stands. Technology of work is based on
cutting unwanted species at a certain height in order to favor pedunculate
oak as the main species. In sample plot 1 the cutting through of undesirable
species was carried out in one place and then third parties carried out their
processing and transportation. In sample plots 2 and 3 workers cut the
unwanted species in several places and stacked the timber on the ground so as
not to interfere with the growth of pedunculate oak which does not tolerate
shading. In this study, we applied time and work study. Group system of work
was recorded. The group typically consisted of 4 workers and a foreman. Fuel
consumption was recorded by the method of tank refuelling. The research
results show that operating conditions have a significant impact on the
effects of work with a chainsaw, as well as on the consumption of fuel and
lubricants. The differences are mainly caused by different structures of cut
timber.
Fuel consumption in the transport of technical broadleaf roundwood in lowland areas
Authors: Danilovic Milorad , Ilic Milenko , Cupric Nenad , Antonic Slavica , Stojnic Dusan
Published: November 2015

This paper presents the results of an analysis of fuel consumption in the
transport of technical roundwood of soft broadleaves from the felling site to
a roadside landing using forwarders and tractor assemblies. The research was
performed in various operating conditions in the area of FE "Banat" Pancevo.
On the basis of the results of the analysis of variance, the data recorded in
a variety of conditions were grouped. In addition, the dependence of fuel
consumption on the average volume of tour was estimated. The results of the
conducted analysis indicate that operating conditions significantly affect
fuel consumption of the investigated vehicles. The elements of statistical
analysis of the dependence of fuel consumption on the volume of load indicate
that an increase in load causes increased fuel consumption per unit of
production. Having in mind the results of the analysis of variance, unique
norms of fuel consumption were adopted for practical purposes. The highest
average consumption (1.21 L/m3) was achieved by a tractor assembly (Same
Laser 130 tractor and Imako TP12 trailer with a Loglift 61F hydraulic crane),
while significantly lower consumption was achieved by a John Deere 1210E
forwarder (1.06 L/m3). In favourable operating conditions, consumption of the
forwarder was about 0.9 L/m3.
Hunting tourism and safety aspects of hunting fauna use in Serbia
Authors: Gacic Dragan , Prentovic Risto , Pilipovic Vojin , Ostojic Milan
Published: November 2015

Hunting tourism is a special (selective) form of tourism and an integral part
of hunting, and it is implemented with efforts to preserve and regenerate its
main motive and resource (hunting grounds and game populations), at least to
the extent defined as simple reproduction. It brings a significant share of
revenue to the hunting sector, which is mainly focused on the improvement of
habitat conditions, as well as the production, breeding and protection of
game and a to a smaller extent on the construction and maintenance of
facilities for the accommodation and board of tourist hunters. Hunting is an
important recreational, sporting and touristic activity characterized by the
potential presence of various safety risks, which can cause injury and even
accidental death of participants in the hunt and their hunting dogs, but also
of other persons, and cause damage to property in the hunting grounds and
beyond. Data suggest that almost every year in Serbia one death is caused by
hunting firearms during hunting.
Analysis of the means of forest harvesting in the Federation of Bosnia and Herzegovina
Authors: Halilovic Velid , Music Jusuf , Gudra Safet , Topalovic Jelena
Published: November 2015

The development of technology and the means of labour in the technological
process of forest harvesting in FBiH mainly depends on the factors related to
the specific manner of forest management. The dominant share of mixed tall
forests with natural regeneration, the selective manner of management and
rather difficult natural conditions have resulted in the application of the
cut-to-length method and to a lesser extent, the tree-length and
semi-tree-length methods. On the basis of expert classification of the
development phases in forest harvesting, it can be noted that wood assortment
production in FBiH is currently partially mechanised. With the aim of
defining measures for increasing productivity, lowering the costs and a
greater humanisation of work, there has been an analysis of the current state
of the means of work in all three phases of forest harvesting. The analysis
included the following parameters: number of means in different phases, the
type, the average age, ownership and technical planned obsolescence. All the
data were collected through a survey which included all stakeholders
(cantonal forest companies and private contractors). The results showed a
satisfactory state only when chainsaws are concerned, i.e. the rather cheap
tools. Other equipment (adapted tractors, skidders, trucks, etc.) has largely
reached planned obsolescence. Their old age results in a low level of
utilisation, i.e. an insufficient amount of working hours per year which
eventually leads to a decrease in productivity and increase in expenses.
Based on the data, it can be concluded that it is necessary to begin the
process of new mechanisation procurement and the replacement of existing,
time-worn and technologically obsolete machines with new ones. At the same
time, it is clear that, in the conditions of low availability of investment
capital and cheap labour force, this has to be a gradual process. In relation
with this, the process should start in the most expensive phase - timber
extraction, i.e. the phase in which the economic efficiency is
unquestionable.
Influence of existing secondary forest road network on the selection of timber extraction technologies at the tactical level of planning
Authors: Lepoglavec Kruno , Pentek Tibor , Papa Ivica , Sporcic Mario , Landekic Matija , Nevecerel Hrvoje
Published: November 2015

Planning is an intellectually demanding process that requires a conscious
determination of actions and decisions based on related purpose, knowledge
and right decisions. During planning timber harvesting it is very important
to choose the best possible technology for timber extraction. The use of
multi-criteria-decision-making models is a very good way of dealing with
various forestry issues especially in terms of choosing the best applicable
technology for timber extraction. Modern forest management in the Republic
of Croatia in terms of timber harvesting mostly relies on ground based
wheeled systems. The goal of this research is to show how the current way of
planning timber harvesting (timber extraction) and accordingly the
construction of secondary forest road network affects future planning and
introduction of ?new? technologies for timber extraction i.e. forest
cableway. Analysis of suitable forest stands for different timber extraction
technologies s was carried out in the management unit Garjevica-Cazma with an
area of 4380.20 ha. The paper presents multi-criteria-decision-making model
for defining terrain suitable for ground based wheeled systems (skidder with
a winch and forwarder) and forest cableway on the base of raster maps (grid
of 20?20 m i.e. 0.04 ha). The criteria used to select different technologies
for timber extraction were: terrain slope, distance from the forest road,
distance from the skid road and harvesting density. Analysis using GIS tools
in ArcGIS and Idrisi applications goes in two directions, first the analysis
of suitability of using selected technologies for timber extraction using
four criteria, and comparison with results of the analysis where the
criterion ?distance from the skid road? has been excluded.
Meteorological disasters in Slovenian forests - how to approach the restoration in our specific conditions
Authors: Marence Jurij
Published: November 2015

In recent years, forests are exposed to various meteorological disasters. The
climate change and warming of atmosphere cause more intensive and frequent
occurrences in the atmosphere. This is also reflected in Slovenian forests -
in particular in the form of windthrow, snow-damage, landslides and
avalanches, and in 2014 a catastrophic ice storm. Some forecasts indicate
that the future will bring more of this kind of disasters. The ice storm in
the last year stroke the land the most in history, in particular in terms of
damaged trees and areas. According to the available data, the damaged
quantities of trees represent more than a two years planned annual cut in
Slovenian forests, while about a half of the country was affected. The
majority of the damaged wood comes from private forests. The remedying of
such extensive meteorological disasters is demanding, dangerous and prolonged
- it is also hindered by the specific ownership structure of the forest land
in Slovenia and its average size. 75% of all forest have private owners, and
this land is fragmented with a large number of forest holders. An average
forest land is only 2.3 ha per individual owner. In these conditions, the
following questions have to be answered: who, how and in what time is it
possible to remedy the caused damage? What is the current quality of wood
which was damaged in many ways in the meteorological disaster? Is it possible
to use more modern felling technologies and wood transports from the forest
in so fragmented private land?
Analysis of the amount of ash during sessile oak (Quercus petraea, Mattuschka) wood combustion
Authors: Nestorovski Ljupcho , Nacevski Mitko , Trajanov Zdravko , Trajkov Pande
Published: November 2015

The subject of investigation in this paper is the amount of ash residue
during combustion of Sessile oak (Quercus petraea, Mattuschka) wood that is
one of the most usable ones as fire wood in households in the Republic of
Macedonia. The purpose of this investigation was to establish the amount of
ash, as one of the biggest problems during energy production with forest
biomass. The material for this investigation is collected from two different
regions of the State, in order to eliminate or to emphasise the influence of
different stand conditions. The results from the investigation show that
during the sessile oak wood combustion the wood produces less ash than wood
with bark, and bark produces the highest amounts of ash.
Development and perspective of the forest road infrastructure in the Republic of Macedonia
Authors: Trajanov Zdravko , Nestorovski Ljupcho , Trajkov Pande
Published: November 2015

This paper determines the historical development of infrastructure in the
forest, streaming the development of the forest road network as a dominant
element of infrastructure. The paper also covers the current condition with
the openness of forests in Republic of Macedonia. On the basis of scientific
research, the results from the optimal density of forest roads are
determined. The paper also covers the period for which it is expected to
achieve the goals of optimization which is the most efficient forest
management without significantly affecting the ecological functions of the
forest.
Testing of the functional garments with microencapsulated phase-change material in simulated high temperature conditions
Authors: Jovanovic Dalibor , Stojisavljevic Predrag , Cvetanovic Sveta , Rajic Dusan , Karkalic Radovan , Ivankovic Negovan , Senic Zeljko
Published: November 2015

An organic Phase Change Material (PCM) possesses the ability to absorb and
release large quantity of latent heat during a phase change process over a
certain temperature range. This paper presents results related to
thermo-physiological efficiency of special underwear with organic PCM
integrated in textile through microencapsulation process. The efficiency of
PCM underwear was tested through physiological examinations in simulated
high-temperature conditions, where test-subjects were voluntarily exposed to
heat stress tests wearing NBC protective suit with PCM underwear (option
"THERM") and without it (option "NoTHERM"). It can be concluded that wearing
a PCM textile clothes under NBC protective suit, during physical activity in
high-tempearture conditions, reduces sweating and alleviates heat stress
manifested by increased core and skin temperature and heart rate values.
Synthesis, cytotoxicity and computational study of novel protoberberine derivatives
Authors: Simic Milena , Damjanovic Ana , Kalinic Marko , Tasic Gordana , Eric Slavica , Antic-Stankovic Jelena , Savic Vladimir
Published: November 2015

A novel and efficient synthetic route has been developed for the preparation
of protoberberine derivatives. The methodology designed to control,
primarily, substitution patterns on the terminal rings, was used to access a
small array of these compounds. Initial biological profiling suggested
anticancer potential of synthesised derivatives while structure-based target
fishing has identified their potential targets and has established rational
basis for further structural modifications. Although the activities need
further improvement, our study demonstrated that the described approach may
be useful in the discovery of the novel lead compounds.
Contribution to the bryophyte flora in beech forests of Vidlic Mountain (Serbia)
Authors: Ilic Milos , Vukov Dragana , Rucando Marko , Cuk Mirjana , Igic Ruzica
Published: November 2015

The research was conducted during 2011 and 2012 in Vidlic Mountain in
southeastern Serbia. The aim of this research was to determine species
composition of mosses and liverworts in beech forests. A total number of 48
taxa (6 liverworts, 42 mosses) was recorded. According to the Red Data Book
of European Bryophytes there is one species in rare category. Also, there is
one species with low risk threat status in Bryophyte Red List of Serbia and
Montenegro. This research is a contribution to Serbian bryophyte flora study.
Diatom species composition in the Raska river (Southwestern Serbia)
Authors: Vidakovic Danijela , Krizmanic Jelena , Sovran Sanja , Stojanovic Katarina , Djordjevic Jelena
Published: November 2015

The paper presents data on the composition of epilithic diatoms in the Raska
River. Samples were collected by scraping stone surfaces with a brush from 5
localities along the Raska River in April, June, August and November 2011 and
March and May 2012. Diatom frustules were cleaned using cold acid method, and
mounted on permanent slides. An investigation of the Raska River resulted in
description of 106 diatom taxa. The most species rich genera are Navicula
(10), Gomphonema (10) and Nitzschia (9), while other genera are presented
with one or more species. Detailed floristic analysis of the benthic diatom
flora in this river has not been conducted before. Therefore, this paper
provides a groundwork for future researches.
Bioremediation potential of five strains of Pseudomonas sp.
Authors: Stamenov Dragana , Djuric Simonida , Hajnal-Jafari Timea
Published: November 2015

Because of their huge biodiversity and metabolic capabilities, the
application of microorganisms as bioremediation agents is a way to enhance
pollutant degradation. The aim of this research was to investigate the
potential of five strains of Pseudomonas sp. as possible bioremediation
agents. Strains are from the Collection of the Microbiology Department,
Faculty of Agriculture, Novi Sad. Bacterial strains were cultivated in King?s
B liquid medium and incubated in shak?er at 28?C. Starter culture was
obtained after 24h, CFU 108. This 24h old bacterial culture was used for the
analysis of influence of five different natural naphthenic acids. Bacterial
growth was determined spectrophotometrically through optical density, after
24h and 48h of growth. Our results showed that two bacterial strains (PS V1
and PS2) had better growth after 48h as they used C from the petroleum
derivates. The growth of these strains was increased by 72% and 25% with
deri?vates concentration of 10-5 mol/cm3 and 10-6 mol/cm3, respectively. The
results of this research showed the potential of certain bacterial strains as
bioremediators.
Flavonoids and polyphenols content and antioxidant activity of Ficus carica L. extracts from Romania
Authors: Trifunschi Svetlana , Munteanu Melania , Ardelean Dorina , Orodan Maria , Osser Gyongyi , Gligor Ramona
Published: November 2015

The objective of this study is to determine flavonoids and polyphenols
content and antioxidant activity of extracts of figs growing in Romania. The
content of flavonoids and polyphenolic compounds was determined according to
the Romanian Phar?macopoeia, the 10th edition, using the standard rutin for
flavonoids, catechol for polyphe?nols and HPLC for flavonoids quantification.
Determination of antioxidant activity was done by DPPH scavenging method and
at cellular level by attenuation of oxidative damage in human erythrocytes.
The experimental results reveal that Ficus carica extracts may be a potential
source of natural antioxidants.
Essential oil content and composition of aniseed
Authors: Acimovic Milica , Tesevic Vele , Todosijevic Marina , Oljaca Snezana , Dolijanovic Zeljko
Published: November 2015

The field experiments were carried out during 2011 and 2012 in three
localities in Vojvodina (Serbia) with the application of six different
fertilizer regimes aimed at determining the content and composition of the
aniseed essential oil. It was found that the average essential oil content of
aniseed, obtained by hydrodistillation, was 3.72%. The weather conditions
during the year and the locality had a statistically significant effect on
the essential oil content, while different source of fertilizers was not
statistically significant for the essential oil content and its composition.
Essential oil composition was determined using GC-MS technique, and a total
of 15 compounds were identified. It was found that the major component was
trans-anethole, 94.78% on the average, and the coefficient of variation was
2%. The second most abundant component was ?-himachalene with 2.53% (CV 28%).
All other components were present in less than 1%.
Influence of the structure of bile acids on their partition coefficient in dibutyl ether and chloroform
Authors: Sebenji Ana , Pоsa Mihalj , Grujic-Letic Nevena , Popovic Kosta
Published: November 2015

Bile acids are well known natural surfactants able to modify the
per?meability of biological membranes. The logarithm of partition coefficient
between, tradi?tionally used, n-octanol and water is a measure of
lipophilicity as a predictor of solute membrane partitioning. The aim of this
work was to determine partition coefficients of bile acids in a mixture of
water and chloroform and dibutyl ether at different pH values and with
addition of different concentrations of sodium ions, and to examine the
influence of the structure of bile acid nucleus on measured partition
coefficients. Partition coefficients of three bile acid salts were determined
using shake-flask method and the concentration of bile acids was determined
after twelve hours of shaking at the room temperature in aqueous and organic
layer using reversed phase HPLC with DAD detector on 210 nm. For all three
analysed bile acid salts values of logP are lower in dibutyl ether than in
chloroform. At certain pH values, curves representing the dependence of
partition coeffi?cient on pH value intersect, and these are the pH values for
which partition coefficients are the same for both solvents. Increasing the
solution ionic strength, this intersection is shifted toward lower pH values.
It is found that, for both organic solvents, after the addition of hy?droxyl
group in the steroid nucleus (i.e. if the bile acid is less hydrophobic) the
value of logP falls, especially if more hydroxyl groups are present. With
chloroform as a solvent, system quickly comes to excess with electrolyte ions
than with dibutyl ether.