bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mushroom Virus × (Mvx): A Novel Disease of Mushrooms in Poland?
Authors: Pudełko Krzysztof 
Published: October 2010

Mushroom Virus × (Mvx): A Novel Disease of Mushrooms in Poland?The emergence of an unusualAgaricus bisporusmushroom disease first reported in the UK, and later termed as "mushroom virus X" (MVX), exhibits a wide range of symptoms. Findings from laboratories in the UK, the Netherlands and Ireland indicate that symptomatic MVX mushrooms contain a variable compendium of novel 26 (dsRNA) elements, ranging in size between 20.2 kb and 0.64 kb. Four low molecular weight dsRNA bands (sizes 2.0-0.64 kb) are consistently synchronous to mushroom off-color/browning symptoms. This devastating disease first appeared in 1996 on UK farms. MVX is now more widespread and prevalent in a number of European countries (e.g. Netherlands, Ireland). Symptoms vary and range from the occasional outbreak to severe outbreaks leading to crop losses. Recently a few mushroom farms in Poland reported symptoms of brown-colored mushrooms among the white ones. These observations were very similar to the observations of MVX incidences observed before on Dutch farms. This work is probably the first information about the possible presence of MVX on Polish mushroom farms.
Evaluation of Some Herbicides Against Flax Dodder (Cuscuta Epilinum Weihe) In Fibre Flax (Linum Ustatissimum L.) Cultivation
Authors: Soliman Ibrahim , Hamza Amany 
Published: October 2010

Evaluation of Some Herbicides Against Flax Dodder (Cuscuta EpilinumWeihe) In Fibre Flax (Linum UstatissimumL.) CultivationTwo field experiments were carried out in Sakha Experimental Station during two seasons to evaluate the efficacy of different treatments (hand combing, butralin, tribenuron-methyl, metosulam and fluazifop-p-butyl) in controlling dodder weed (Cuscuta epilinumWeihe) in Fibre flax. Moreover, the effect of these treatments on some growth characters of flax yield and its components was also determined. All tested herbicide treatments decreased the dodder infestation in flax for up to 49 days. All tested herbicide treatments increased all flax growth characters, (straw yield and seed yield). Butralin herbicide gave the best control of dodder, followed by metosulam, tribenuron-methyl and fluazifop-p-butyl. Also, the data revealed that most herbicidal treatments slightly decreased protein content of flax plants and did not adversely affect the oil content of its seeds. This study suggests that, under heavy infestation of dodder weed, the use of the tested herbicides, especially butralin, is highly recommended.
Toxicity of Chenopodium Ambrosioides L. (Chenopodiaceae) Products From Nigeria Against Three Storage Insects
Authors: Denloye Abiodun , Makanjuola Winifred , Teslim Oluwakemi , Alafia Oyindamola , Kasali Adeleke , Eshilokun Adeolu 
Published: October 2010

Toxicity ofChenopodium AmbrosioidesL. (Chenopodiaceae) Products From Nigeria Against Three Storage InsectsTests were carried out to study the toxicity, oviposition suppression, ovicidal and larvicidal effects ofChenopodium ambrosioidesL. as powder, extracts and essential oil againstCallosobruchus maculatusF. (Coleoptera: Bruchidae),Sitophilus zeamaisMotschulsky (Coleoptera: Curculionidae) andTribolium castaneumJacqueline du Val. (Coleoptera: Tenebrionidae). The powder formulation was more toxic toS. zeamaisthan eitherC. maculatusorT. castaneumwith 48 h LC50values of 0.46 g/kg, 1.60 g/kg and 2.14 g/kg, respectively. Ethanol extract was more toxic toC. maculatuswith a 48 h LC50value of 0.023 g/l, than other test insect species. The essential oil treatment demonstrated higher fumigant toxicity againstC. maculatusthanS. zeamaiswith 24 h LC50values of 1.33 μl/l and 1.90 μl/l respectively. The oil vapour showed activity againstC. maculatusegg, but had no appreciable larval mortality. The weight loss of grains admixed withC. ambrosioidespowder was lower than the controls after 150 days of field storage.
Aphid Dynamics in Relation to Meteorological Factors and Various Management Practices in Bread Wheat
Authors: Wains Muhmmad , Ali Muhammad , Hussain Makhdoom , Anwar Javed , Zulkiffal M. , Sabir Waseem 
Published: October 2010

Aphid Dynamics in Relation to Meteorological Factors and Various Management Practices in Bread WheatThe infestation of aphids in wheat is becoming a serious problem nowadays and it might become a threat to the future wheat crop in Pakistan. With this problem in mind we did a study pertaining to aphid dynamics in relation to meteorological factors and various management practices in bread wheat. The study was carried out at the Wheat Research Institute, Faisalabad, Pakistan. The aim of this study was to investigate how meteorological factors play a role in the fluctuating aphid population and how different management practices could be effective in combating aphids. The results revealed that a peak aphid population was recorded during the beginning of the third week of March for both of the study year periods of 2007-2008 and 2008-2009. Aphid density was positively associated with maximum as well as minimum temperature while it showed a negative correlation with relative humidity. However aphid population was positively but not significantly affected by rainfall. Early sowing on 1st November produced the least aphid infestation hence early sowing was encouraged as a cultural practice for keeping aphids below damaging levels. The recently developed wheat varieties like: SHAFAQ-06, SEHER-06, FSD-08 and LASANI-08, revealed aphid resistance and performed better against aphids. On the other hand the genotypes V-05003, BARS-09 and 0BT006, revealed maximum vulnerability to aphids. Number of aphids per tiller was positive correlated with loss in grain yield. Application of insecticide significantly controlled the aphid population which suggested that a combination of host plant resistance with chemical control could restrain the aphid infestation in wheat.
Efficacy of Mahogany Bark Aqueous Extracts and Exposure to Solar Heat for Treatment of Potato Tuber Soft Rot Caused by Erwinia Carotovora Ssp. Carotovora
Authors: Bdliya Bulus , Abraham Peter 
Published: October 2010

Efficacy of Mahogany Bark Aqueous Extracts and Exposure to Solar Heat for Treatment of Potato Tuber Soft Rot Caused byErwinia CarotovoraSsp.CarotovoraThe efficacy of combining tuber treatment with mahogany bark aqueous extracts and exposure to solar heat for the control of potato tuber soft rot was investigated. Artificially inoculated potato tubers were treated with mahogany bark aqueous extracts and exposed to solar heat for zero, one, two and three hours. The results showed that tuber treatment with the plant extract followed by exposure to solar heat significantly reduced the incidence and severity of tuber soft rot compared to the control group. However, the highest reduction in the incidence and severity of the disease was recorded on tubers treated with the plant extract and incubated immediately after treatment (no exposure to solar heat). This suggests that the plant extract is more effective at lower than higher temperatures. Potato tuber losses due to soft rot could therefore be managed by tuber treatment with mahogany bark extract and no exposure to solar heat.
Dual-task Practice of Temporally Structured Movement Sequences Augments Integrated Task Processing, but not Automatization
Authors: Blischke Klaus , Wagner Florian , Zehren Barbara , Brueckner Sebastian 
Published: October 2010

Dual-task Practice of Temporally Structured Movement Sequences Augments Integrated Task Processing, but not Automatization
After initial learning, a one-finger key stroke sequence, defined by a specific relative timing pattern (temporal structure) and absolute total movement time (temporal parameter), was practiced (with KR provided) either under dual-task conditions (experimental group), or under single-task conditions (control group). During dual-task practice, the key stroke sequence (i.e., the primary-task) was always executed in parallel to one of two cognitively demanding secondary tasks (subtracting numbers, or sorting marbles). Secondary tasks were alternated every 20 practice trials. Before (Pre-test) and after practice (Post-test), performance in each group was assessed under single-task and under dual-task conditions (no KR during tests). From Pre- to Post-test, primary-task performance in both groups significantly increased (relative timing in particular). Also, after practice dual-task costs found during Pre-test in both groups were still prevalent in the control group, but completely vanished in the experimental group with respect to those task combinations that were practiced before. However, when a new secondary task (repeating letters) was introduced, dual-task costs fully reappeared in the experimental group with respect to relative timing of the key stroke sequence. These results contradict the notion of readily acquiring automatic control in the course of dual-task practice by "Structural Displacement" (Blischke & Reiter, 2002), but they are well in line with the concept of developing cognitive strategies for "Integrated Task Processing" (Manzey, 1993). Thus, impact of dual-task practice on motor sequence production may be different from that on motor parameter control. In this context, implications of recent findings from neuropsychology on cortical systems engaged in the pursuit of concurrent behavioural goals (cf. Charron & Koechlin, 2010) are discussed.
Acute Effects of Whole Body Vibration on Shoulder Muscular Strength and Joint Position Sense
Authors: Hong Junggi , Velez Mayachela , Moland Abraham , Sullivan Jeff 
Published: October 2010

Acute Effects of Whole Body Vibration on Shoulder Muscular Strength and Joint Position Sense
Functional changes following whole body vibration (WBV) training have been attributed to adaptations in the neuromuscular system. However, these changes have mainly been observed in the lower extremity with minimal change to the upper extremity. The purpose of the study is to examine the acute effect of shoulder vibration on joint position sense and selected muscle performance characteristics (peak torque, time to peak torque, and power). Forty young individuals (19.84 ± 1.73 yrs, 171.41 ± 7.73 cm, 70.07 ± 9.32 kg) with no history of upper body injuries were randomly assigned to an experimental (Vibration) or control (No-Vibration) group. To assess shoulder proprioception, active and passive joint position senses were measured on both internal and external rotation of the shoulder. The muscle performance variables (peak torque and time to peak torque) were measured using isokinetic dynamometer with the velocity of 60°/sec. After three bouts of 1 minute vibration training, the experimental group demonstrated a significant improvement in the internal rotation peak torque, time to peak torque and external rotation time to peak torque (p<0.05). However, no-significant differences were revealed for joint position sense, external rotation peak torque, and time to peak torque between the groups. Our findings suggest that short bouts of vibration treatment have a significant effect on shoulder muscle characteristics.
Contribution of Peripheral and Central Fatigue in Different Conditions (Gender and Time of Day Differences)
Authors: Nourshahi Maryam , Alirezaei Fatemeh , Bahrpeyma Farid 
Published: October 2010

Contribution of Peripheral and Central Fatigue in Different Conditions (Gender and Time of Day Differences)
The aim of the present study was to examine the rate of central and peripheral contributions in circadian rhythms and gender differences after exhausted maximal exercise. From 36 volunteers, 12 healthy male and female subjects who had H-reflex (It is elicited by electrical stimulation and it has been suggested to be one of mechanisms that could cause central fatigue) were selected (mean age of 23.5±1.37 years, height of 166.83±5.11cm, weight of 59.8±9.15 kg, VO2max of 33.14±4.71 ml. kg-1. min-1in male subjects and mean age of 23±6.32 years, height of 165.17±2.48 cm, weight of 56±2.09 kg and VO2max of 29.05±2.89 ml. kg-1. min-1 in female subjects) and took part in this investigation. Central (MVC, latency of H-reflex, amplitude of H-reflex and ratio of H-reflex to M-wave) and peripheral properties of fatigue (blood lactate and M-wave) were recorded before and after an exhausted maximal exercise at two different times of day: 9 am and 6 pm which is separated by a week. Significant differences were found in HR, blood lactate and latency of H-reflex before and after exercise. However differences between male and female in MVC, amplitude of H-reflex, ratio of H-reflex to M-wave and M-wave was significant. With induced -exercise, central and peripheral fatigue was higher in men in the morning and in women in the afternoon., thus our results recommended designing suitable exercise programs for men and women in the afternoon and morning, respectively. However, further studies are needed to confirm these results, especially in recommending using transcranial magnetic stimulation.
Muscle Strength and Aerobic Endurance as Factors Differentiating Falling and Non-Falling Men over 70 Years
Authors: Maciaszek Janusz 
Published: October 2010

Muscle Strength and Aerobic Endurance as Factors Differentiating Falling and Non-Falling Men over 70 Years
The aim of the study was to find factors which differentiate generally healthy elderly men who had fallen versus those whom had not fallen throughout the year prior to the study. The participants (66 generally healthy men aged over 70 years) were divided into two groups - those who had fallen (F) and those who had not fallen (NF) in the period of one year before the study. Their body mass index and fat mass were measured. On the basis of the value of maximum sways on a stable posturographic platform, the sway area was calculated. To study psychomotor fitness reaction time, an analysis was measured by the "Vienna System Test". Functional fitness was measured on the basis of selected tests from "The Senior Fitness Test". The complexity of the multiple mechanisms underlying postural control does not allow for clear indication of the risks of stability loss. The experimental group of men over 70 yrs who had fallen (F) was characterised by lower body strength (p<0.05) and endurance (p<0.05), compared to NF group. Exercise programs designed to prevent accidental falls should incorporate strength and aerobic exercises.
Is Walking Exercise a Protective Factor for Osteoporosis in Young Obese Women?
Authors: Habibzadeh Nasim , Rahmani-Nia Farhad , Daneshmandi Hassan 
Published: October 2010

Is Walking Exercise a Protective Factor for Osteoporosis in Young Obese Women?
Twenty obese (BMI>30) women with an average age of 22.00 ± 1.50 years volunteered to participate in this study. They were randomly assigned to exercise (n=10) and control (n=10) groups. Before and after the training program, both groups were evaluated for anthropometric measurements and blood analysis. Bone mass density (BMD) was evaluated by using dual-energy X-ray absorptiometry (DXA) at the hip and spine (L2- L4). Each walking session was 30 min walking at 50-75% of maximal heart rate, 3 days per week, for 2 months. After 2 months, the exercise group showed no significant effect on BMD at the spine (L2- L4) and hip (p>0.05). However, there was a slightly increase in BMD at both regions, while the control group did not. Also, no change was observed in bloods factors. Percent body fat, fat mass and lean mass changes in response to training were significant in the exercise group (all p=0.000). As a result, it may be suggested that walking programs of longer duration and higher intensity can influence BMD and related factors in obese girls, however to achieve this result, more studies are needed.
Effects of Supplementation with Neptune Krill Oil (Euphasia Superba) on Selected Redox Parameters and Pro-Inflammatory Markers in Athletes during Exhaustive Exercise
Authors: Skarpańska-Stejnborn Anna , Pilaczyńska-Szcześniak Łucja , Basta Piotr , Foriasz Justyna , Arlet Jarosław 
Published: October 2010

Effects of Supplementation with Neptune Krill Oil (Euphasia Superba) on Selected Redox Parameters and Pro-Inflammatory Markers in Athletes during Exhaustive Exercise
This study investigated the effects of supplementation with Krill oil on levels of pro-oxidant/antioxidant balance markers and levels of pro-inflammatory cytokines in professional rowers submitted to exhaustive exercise.
This double-blind study included 17 members of the Polish National Rowing Team. Subjects were randomly assigned a supplemented group (n=9) which received two capsules (500 mg) of Krill oil daily for 6 weeks, or a placebo group (n=8). At the beginning and at the end of preparatory camp, subjects performed a 2000 m maximum effort test on a rowing ergometer. Blood samples were taken from the antecubital vein prior to each exercise test, 1 minute after completing the test, and after 24-hours of rest. The following redox parameters were assessed in erythrocytes: superoxide dismutase (SOD), glutathione peroxidase (GPx), and thiobarbituric acid reactive substances (TBARS) concentration. Additionally, creatine kinase (CK) activity was measured in plasma samples, while tumor necrosis factor (TNF-α) concentrations were measured in the serum.
Exercise significantly increased values of SOD, TNF-α and TBARS in both groups, but recovery levels of TBARS were significantly lower in athletes receiving Krill oil compared with the control group.
Based on these results we conclude that supplementation with Krill oil (1 g per day) in trained rowers diminished post exercise oxidative damage to erythrocytes during recovery, but had no effect on antioxidant enzymes, TNF-α and serum lipid profiles.
Assessment of Air Way Resistance Indexes and Exercise-Induced Asthma after a Single Session of Submaximal Incremental Aerobic Exercise
Authors: Fatemi Rouholah , Ghanbarzadeh Mohsen 
Published: October 2010

Assessment of Air Way Resistance Indexes and Exercise-Induced Asthma after a Single Session of Submaximal Incremental Aerobic Exercise
The present study aimed at assessing air way resistance indexes that include FEV1 (Force expiration Volume in one second), FVC (Forced vital capacity) and FEV1/FVC and exercise-induced asthma (EIA) after one session of sub maximal incremental aerobic exercise. Fifty healthy male subjects (age 19-26) from the faculty of Physical Education, University of Shahid Chamran served as the participants of the study. They were randomly assigned to either exercise or control groups. Body height, body mass and pulmonary factors were measured in the pre-test conditions. The study protocol included a sub maximal incremental Astrand - Rhyming test on an ergocycle. After performing this test by the exercise group, FEV1, FVC and FEV1/FVC, were measured again for both groups and compared with pre test evaluations. The data were analyzed through descriptive and inferential statistics (dependent and independent t test). Results showed that there was a significant difference in FEV1 between the two groups after the exercise protocol (p ≤ 0.05). There was no significant difference in FVC between the two groups after exercise, and a significant difference was registered in FEV1 and FEV1/FVC between pre-test and post-test results in the group that performed the aerobic test protocol (p ≤ 0.05). Our results indicate that one sub maximal incremental aerobic exercise session causes a significant change in FEV1 and FEV1/FVC, and causes exercise-induced asthma.
Effects of Growth Hormone Therapy and Physical Exercise on Anaerobic and Aerobic Power, Body Composition, Lipoprotein Profile in Middle Aged Men
Authors: Zajâc Adam , Czuba Miłosz , Poprzecki Stanisław , Waśkiewicz Zbigniew , Cholewa Jarosław , Pilch Jan , Chycki Jakub 
Published: October 2010

Effects of Growth Hormone Therapy and Physical Exercise on Anaerobic and Aerobic Power, Body Composition, Lipoprotein Profile in Middle Aged Men
Recently growth hormone therapy has been used as an age delaying drug in middle aged men and women as well as in the elderly. Positive effects have been shown in regards to body mass and body composition changes, fat metabolism, bone mineral density and muscle strength. Exercise is a potent physiological stimulus for growth hormone secretion and both aerobic and resistance exercise results in significant, acute serum increases in GH concentration. It is unclear however whether a combination of exercise and hGH therapy further increases physical performance in adults and increases changes in body composition and biochemical variables related to health. For this purpose a group of 15 middle aged men (45,7±5,8 years, 93,2±16,3kg and 183,3±4cm), slightly overweight were randomly divided into an experimental and control groups. Both groups exercised for 3 month, performing 2 aerobic sessions per week and 2 resistance workouts, increasing training loads every two weeks. The experimental group received additionally hGH subcutaneous injections beginning with 0,2 IU daily for the first month and then increasing it to 0,4 and 0,6 IU in successive month. VO2max was evaluated during a progressive ergocycle test to volitional exhaustion, while anaerobic power and capacity were measured during the 30s Wingate test. Additionally body mass and body composition were evaluated as well as the lipoprotein profile and the concentration of chosen anabolic hormones. The results indicate a significant rise in resting concentrations of GH and IGF-1 after the replacement therapy but no additional benefits in regards to aerobic fitness and fat metabolism in comparison to exercise only. A more profound effect was observed in case of anaerobic performance, thus it was concluded that even small doses of hGH stimulated additional protein synthesis following resistance exercise what allowed for significant increases in FFM, anaerobic power (W/kg) and capacity (J/kg) as evaluated obtained during the Wingate test. It was concluded that for a more significant effect of hGH therapy in regards to physical performance greater doses of this hormone have to be used, along with an intensive exercise program.
Dual Energy X-Ray Absorptiometry in Morphological Asymmetry Assessment among Field Hockey Players
Authors: Krzykała Magdalena 
Published: October 2010

Dual Energy X-Ray Absorptiometry in Morphological Asymmetry Assessment among Field Hockey Players
Every sports discipline is characterized by specific movements which are symmetric or asymmetric. Field hockey belongs to a asymmetric activity. There is suspicion that players, who use more frequently one side of the body during training or the game, have also side-to-side morphological diversification. The main aim of the study is to determine the degree of asymmetry which manifests itself in somatic characteristics. The analysis was done among twenty competitive Polish male field hockey players. All athletes undertook total body Dual X-Ray Absorptiometry (DXA) scans, which divided the body into anatomic segments: arms, trunk, and legs. Professional field hockey participation showed significantly enhanced muscle mass and higher bone mineral density on the left side of the body. The present data should help better understand complicated morphology of highly trained athletes with more comprehensive and accurate approach to their anthropometrical description.