scholarly journals EVALUATION OF THE MANAGEMENT OF BROWN HARE POPULATION IN VOJVODINA REGION FOR THE PERIOD 1967-2011

2016 ◽  
Vol 9 (1) ◽  
pp. 83-92
Author(s):  
Zoran A. Ristić ◽  
Igor Ponjiger ◽  
Vladimir Mijailović ◽  
Vasilije Tešić ◽  
Milutin Kovačević ◽  
...  
Keyword(s):  
Brown Hare ◽  
Game Species ◽  
Hunting Season ◽  
Precise Information ◽  
Average Percentage ◽  
The Past ◽  
Real Growth ◽  
Two Parameters ◽  
Hare Population ◽  
Research Period

Every year during the past 45 years (1967–2011), hunting organizations have been sending eye lenses (lens cristallina) to the Laboratory for hunting of the hunting association of Vojvodina for testing and analysis of the percentage of young hares in a micro population to establish the real growth rate. Th ese two parameters combined with the number of hares in spring and cull rate from last year were suffi cient to provide hunting organizations with precise information about hunting dynamics and rate of hunting in current hunting season. At the beginning, (in 1967), only 20%of hunting organizations submitted the samples, but ten years aft er the first sample had been collected, the percentage has gradually increased to 30% in 1977 Since then, the percentage of hunting organizations that were sending samples increased to 45% in 1987, 60% in 1997, and 70 % in 2007 with a maximum of 77% percentage in 2008. Th roughout the research period of 45 years, the total number of examined and processed eye lenses was 363,380. Out of 8,727 samples approximately 8,075 eye lenses were processed yearly. A small number of hunting organizations which didn’t send any samples haven’t been hunting brown hare in their hunting grounds during these years. During this research, several conclusions were made: the percentage of young hares in populations varies from 38% in 2010 to 70.3% in 1994. Th e average percentage for period of 45 years was 58.4% of young hares in a population. According to the research, the coeffi cient of real growth was 1.58 young hare per female hare. The minimum was 1.13 in 2010, and the maximum was 2.33 in 1994. Th ese analyses provided the actual information about stability and health of hare populations and enable a sustainable longterm planning of these game species.

Economic Performance and Public Finance in Kenya, 1960-2010

2018 ◽  
Vol 47 (2) ◽  
Author(s):  
Kempe Ronald Hope
Keyword(s):  
Public Finance ◽  
Economic Performance ◽  
Emerging Economy ◽  
The Other ◽  
Government Investment ◽  
The Past ◽  
Other Hand ◽  
Private Savings ◽  
Per Capita ◽  
Real Growth

Countries with positive per capita real growth are characterised by positive national savings—including government savings, increases in government investment, and strong increases in private savings and investment. On the other hand, countries with negative per capita real growth tend to be characterised by declines in savings and investment. During the past several decades, Kenya’s emerging economy has undergone many changes and economic performance has been epitomised by periods of stability, decline, or unevenness. This article discusses and analyses the record of economic performance and public finance in Kenya during the period 1960‒2010, as well as policies and other factors that have influenced that record in this emerging economy. 

A Preliminary, Open-Label Study of Naltrexone and Bupropion Combination Therapy for Treating Binge Drinking in Human Subjects

2019 ◽  
Author(s):  
T Jordan Walter ◽  
Montserrat Navarro ◽  
Todd E Thiele ◽  
Cort Pedersen ◽  
Alexey Kampov-Polevoy ◽  
...  
Keyword(s):  
Binge Drinking ◽  
Extended Release ◽  
Human Subjects ◽  
Open Label ◽  
Prospective Design ◽  
Open Label Study ◽  
Men And Women ◽  
Average Percentage ◽  
The Past ◽  
Preliminary Study

Abstract Aims The combination of bupropion and naltrexone has shown efficacy in reducing binge drinking in animal models. This study assessed the tolerability and potential utility of combined naltrexone and bupropion in reducing binge drinking in human subjects. Methods This preliminary study employed an open-label, single-arm, 12-week, prospective design. Twelve men and women who exhibited a minimum of five (men) or three (women) binge drinking episodes per month over the past 3 months were recruited. All subjects received both bupropion-extended release 300 mg/day and naltrexone 50 mg/day and were monitored throughout the 3-month treatment period. Binge drinking was assessed using the timeline follow-back method. Results Treatment with combined naltrexone and bupropion reduced the average number of drinks per binge drinking day from 7.8 drinks to 6.4 drinks and reduced the average percentage of binge drinking days per month from 19% (5.7 days/month) to 5% (1.5 days/month). Naltrexone and bupropion were generally well tolerated, with insomnia, headache and nausea/diarrhea being the most common side effects. Six subjects elected to stay on medication after the trial. Conclusions This study suggests that combined naltrexone and bupropion therapy should be further investigated for tolerability and efficacy in reducing binge drinking in humans.

The genetic analysis of new Polish strains of European brown hare syndrome virus

2014 ◽  
Vol 17 (2) ◽  
pp. 353-355
Author(s):  
E. Kwit ◽  
M. Chrobocińska ◽  
Z. Grądzki ◽  
Ł. Jarosz ◽  
B. Majer-Dziedzic ◽  
...  
Keyword(s):  
Genetic Analysis ◽  
Phylogenetic Position ◽  
Brown Hare ◽  
Gene Encoding ◽  
European Brown Hare ◽  
Close Relationship ◽  
Provinces Of Poland ◽  
Pcr Method ◽  
European Brown Hare Syndrome ◽  
Hare Population

Abstract In this paper we describe recently occurring outbreaks of European brown hare syndrome (EBHS) in a captive hare population. The aim of our study was to evaluate the phylogenetic position of detected Polish strains compared to other European strains of EBHSV. Investigations were undertaken in hares from different provinces of Poland. Liver or spleen samples were tested for viral RNA using the RT-nested PCR method and the products were subsequently sequenced. The genetic analysis was based on the fragment of gene encoding viral capsid protein; it revealed a high homology and close relationship between Polish and European EBHSV strains isolated between 2001 and 2011

A COMPARISON OF FORECASTING THE RESULTS OF ROAD TRANSPORTATION NEEDS

Transport ◽  
2012 ◽  
Vol 27 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Bogna Mrówczyńska ◽  
Karolina Łachacz ◽  
Tomasz Haniszewski ◽  
Aleksander Sładkowski
Keyword(s):  
Harmonic Analysis ◽  
Percentage Error ◽  
Road Transportation ◽  
Artificial Immune ◽  
Mathematical Methods ◽  
Average Percentage ◽  
The Past ◽  
Forecasting Methods ◽  
Average Percentage Error

Determining the size and quality of transport needs would not be possible without adequate forecasting based on the sales volume or demand for this service from the past periods. Traditional forecasting methods use econometric models that may be subject to serious errors. The use of the methods taking into account the variability of the studied phenomena or more advanced mathematical methods enables to minimize the error. Various methods of artificial intelligence such as a neural network, fuzzy sets, genetic algorithms, etc., have been recently successfully applied. The aim of this paper is to compare three forecasting methods that can be used for predicting the volume of road freight. The article deals with the effectiveness of three prediction methods, namely Winter's method for seasonal problems – a multiplicative version, harmonic analysis and harmonic analysis aided by the artificial immune system. The effectiveness of prediction was counted using MAPE errors (main average percentage error). The results of calculations were compared and the best example was presented.

Simple Method for Dynamic Interaction between Two Rigid Foundations

2011 ◽  
Vol 250-253 ◽  
pp. 2225-2228
Author(s):  
Bin Yan ◽  
Ying Hui Lv ◽  
Ping Hu
Keyword(s):  
Dynamic Stiffness ◽  
Dynamic Interaction ◽  
Foundation Soil ◽  
Simple Method ◽  
Damping Coefficients ◽  
The Past ◽  
Calculating Method ◽  
Interaction Factors ◽  
Two Parameters ◽  
Stiffness And Damping

In the past many researchers studied dynamic stiffness and damping coefficients of surface and embedded rigid foundations of arbitrary shapes in the elastic homogenous half space. Dynamic stiffness and damping coefficients were obtained by using regularly shaped foundations instead of arbitrarily shaped ones. Obviously, the calculating methods were not perfect. In addition, the two parameters mentioned above were calculated only in the case of a single foundation. But the cases of two or more foundations were not presented because the interactions between foundations were not considered in all present papers. This paper eliminates two faults named above by using the assumption of the plane strain and of dynamic foundation-soil interaction factors. The calculating method of dynamic impedances presented by the paper proved to be accurate and practical.

scholarly journals Endoparasites found in European brown hares (Lepus europaeus) hunted in Macedonia, Greece

2014 ◽  
Vol 51 (4) ◽  
pp. 345-351 ◽  
Author(s):  
A. Diakou ◽  
C. Sokos ◽  
E. Papadopoulos
Keyword(s):  
Animal Species ◽  
Lepus Europaeus ◽  
Mixed Infections ◽  
Brown Hare ◽  
Southern Europe ◽  
Population Declines ◽  
European Brown Hare ◽  
Linguatula Serrata ◽  
Eimeria Spp ◽  
Hare Population

AbstractThe European brown hare (Lepus europaeus) is widespread throughout Europe with population declines in some countries. Parasites can be one of the natural regulative factors of hare population. The information about the prevalence of endoparasites of European hares in Southern Europe is limited while relevant data from Greece are lacking. Gastrointestinal tracts of 84 Lepus europaeus, hunted in Macedonia, Greece, were examined for endoparasites. Sixty two (73.8 %) of the animals were parasitized by one or multiple parasitic species. Eimeria spp. was found in 54 (64.28 %) of the gastrointestinal tracts, Trichostrongylus retortaeformis in 42 (50 %), Trichuris leporis in 18 (21.42 %), Dicrocoelium dentriticum in 8 (9.52 %), Passalurus ambiguus in 4 (4.76 %) and Protostrongylus spp. in 2 (1.22 %). Moreover, Linguatula serrata larvae were found in 16 (19.04 %) animals and Dirofilaria scapiceps in one. Mixed infections were significantly more common than single infections. Although the parasites found do not represent a threat for other animal species, under certain conditions, they may play an important role in the health status of hares.

On subfamily structure of the Cupedidae (Coleoptera, Archostemata): data from paleontology and an approach to solving conflicting classifications

2021 ◽  
Vol 4 (4) ◽  
Author(s):  
ALEXANDER G. KIREJTSHUK
Keyword(s):  
Phylogenetic Reconstruction ◽  
The Other ◽  
Ernst Haeckel ◽  
Molecular Method ◽  
Full Extent ◽  
The Past ◽  
Molecular Approaches ◽  
The Family ◽  
Systematic Structure ◽  
Research Period

This paper demonstrates some of main differences between the systematic constructions based mostly on paleontological research and constructions involving the other approaches. Some reasons for these differences are discussed, together with an approach to solve contradictions between the conflicting hypotheses. The multiple (multidimensional) parallelism gives a possibility to solve many problems of phylogenetic interrelations due to reconstructions based on coincidence of patterns of changes (series of interconnected facts) traced in different aspects of evolutionary processes. This principle originates in the ideas by Jean Agassiz and Ernst Haeckel defined as the principle of triple parallelism. Other aspects of the evolution can be added to the morphology, embryology, and paleontology, initially included in this method. The molecular method is one of such aspects. It is shown that the potential resolution of the morphological and molecular approaches in some cases could be rather restricted, particularly applying ancient groups with main evolutionary transformations passed far in the past. The infraorder Cupediformia and suborder Archostemata in general are examples of such cases. It is advisable in the current research period that has followed the previous interpretation of the systematic structure of the family Cupedidae recognizing three subfamilies with not quite distinct hiatus between them (Cupedinae, Ommatinae and Triadocupedinae). Some recent morphological and molecular approaches proposed to divide the Cupedidae into two separate families on the basis of incomplete information accessible after study of only modern representatives, as most events in the family evolution occurred during the Palaeozoic and Mesozoic, and these events are scarcely possible to trace without considering fossils. As the principle of multiple parallelism cannot be currently used for archostematans to the full extent of its power, it is necessary to choose the paleontological method of phylogenetic reconstruction as crucial. This approach is preferable for groups that are well-documented through very diverse fossils, and for which only few of its remnants of the past diversity reached the modern epoque.

Forced Response of Bladed Disks With Damping Mistuning

2011 ◽  
Author(s):  
Oualid Khemiri ◽  
Carlos Martel ◽  
Roque Corral
Keyword(s):  
Forced Response ◽  
Simplified Model ◽  
Bladed Disks ◽  
Precise Information ◽  
The Past ◽  
Underlying Mechanisms ◽  
Elastic Characteristics

The effect of mistuning on the vibration of bladed disks has been extensively studied in the past 30 years. Most of these analysis typically cover the case of small variations of the elastic characteristics (mass and stiffness) of the blades. In this work we study the not so common case of the forced response of a stable rotor with damping mistuning. The Asymptotic Mistuning Model (AMM) is used to analyze this problem. The AMM methodology provides a simplified model that describes the effect of blade to blade damping variation, and gives precise information on the underlying mechanisms involved in the action of damping mistuning.

Constraint-based failure assessment diagrams

1995 ◽  
Vol 451 (1943) ◽  
pp. 757-777 ◽  
Keyword(s):  
Crack Tip ◽  
Single Parameter ◽  
Elastic Plastic ◽  
The Past ◽  
Crack Tip Fields ◽  
Failure Assessment ◽  
Constraint Effects ◽  
Two Parameters

Constraint-dependent toughness has been addressed by characterizing elastic-plastic crack tip fields and the associated toughness in terms of two parameters: J , and a parameter that indexes the level of constraint ( T/Q ). In the past, failure assessment diagrams have been developed on the basis of a single-parameter characterization of toughness. The present work modifies these diagrams to incorporate constraint effects and indicates the loadings where advantage can be taken of constraint enhanced toughness.

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