bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of Long-term Regular Exercise on Cognitive Function, Lipid Profile and Atherogenic Biomarkers in Middle-aged Men
Authors: Kłapcińska Barbara , Kroemeke Aleksandra , Tataruch Magdalena , Tataruch Rafał , Szołtysek-Bołdys Izabela , Derejczyk Jarosław , Kimsa Elżbieta , Iskra Janusz
Published: August 2009

Effects of Long-term Regular Exercise on Cognitive Function, Lipid Profile and Atherogenic Biomarkers in Middle-aged Men

Several studies on exercise and its effect on cognitive function in human and animal populations have documented the beneficial impact of regular physical activity on maintenance of good cognitive abilities and satisfactory health-related quality of life well into older age. The aim of the study was to evaluate the effects of long-term regular running on metabolic profile and cognitive function in middle-aged men.

A total of 24 regularly exercising, middle-age men (Group A), all being members of the Runners Club, and 22 age-matched sedentary subjects (Group B), as the control group, were enrolled in this study. The control group included 8 non-overweight (BMI=23.5±5.2) individuals (Group C) and 14 overweight/obese (BMI=30.7±1.6) subjects (Group D). Serum lipid profile, glucose and homocysteine concentrations were assessed by routine laboratory methods. Subjects' cognitive function was evaluated based on Trail Making Test (TMT) and Digit Symbol Test (DST) scores.

In a majority of runners (Group A), the BMI and the parameters of lipid profile (TC, HDL, LDL, TG, glycerol) were close to those recorded in non-overweight controls (Group C) and, in both groups, results were ideally within the reference ranges for healthy male subjects. However, as compared to the whole control group (Group B), which may be considered as an average population sample of sedentary middle-age men, significant differences were observed in BMI and concentrations of TC and LDL, as well as in the pro-atherogenic biomarkers (TC/HDL, LDL/HDL), which were lower in runners. A similar tendency was found in concentrations of TG (independent cardiovascular risk factor), glycerol and TG/HDL ratio (surrogate measure of insulin resistance), however the differences did not reach the level of significance. The level of homocysteine (pro-atherogenic biomarker) was comparable in all groups, and in most cases, within the reference range for male adults. Results of cognitive function tests did not reveal any significant between-group differences. The TMT score was found to be correlated positively (r=0.492, p<0.05), whereas DST score was correlated negatively (r=-0.549, p<0.005), with age. The DST performance, as evaluated in the group of runners (Group A), appeared to be strongly dependent (r=0.809, p<0.005) on the educational level of the subject.

These data provided evidence of beneficial effects of a long-term regular endurance running exercise on lipid profile and cardiovascular health in middle-aged men. However, we failed to confirm the findings of a favorable impact of regular physical activity on improvement in cognitive abilities.
Factors Determining Participation in Leisure Time Physical Activity among Former Athletes and Male non Athletes
Authors: Woitas-Ślubowska Donata
Published: August 2009

Factors Determining Participation in Leisure Time Physical Activity among Former Athletes and Male non Athletes

The aim of the study was to compare the impact of socioeconomic factors and self-rated health on participation in leisure time physical activity (LTPA) among former athletes and male non athletes. In the spring-summer of 1997 - 2002, two groups of males between the ages of 18 - 51 years were enrolled in the study: former athletes (n=175) and men without any (past or present) competitive sports experience (n=197). Sample selection was deliberate according to the "easy access" criterion. An anonymous, postal self-return survey included questions concerning the variables of frequency, time spent on LTPA and form of participation in LTPA, socioeconomic variables (age, marital status, residence, educational level, occupation, income level) and selfrated health (categories: very good, good, moderate, poor and very poor). Statistical analysis of the study included test of differences between two structural components and X2 test. In both groups, poor participation in LTPA was significantly associated with a negative self-rated health and low socioeconomic status (blue-collar work or unemployment, low income, low educational level), and in the group of men without any competitive sports experience, also with the age range of 35 - 51 years, and residence in a rural area. Furthermore, the impact of poor socioeconomic status on participation of men in LTPA was found to be weaker among former athletes than in men without any past competitive sports experience. The results of the study indicate that the following are necessary to improve participation of men in LTPA: propagation of competitive sports among boys and young men, and elimination of socioeconomic barriers for their physical activity.
Adolescent Attitudes towards Sport Depending on School Level, Gender and School Sports Club Membership
Authors: Tomik Rajmund
Published: August 2009

Adolescent Attitudes towards Sport Depending on School Level, Gender and School Sports Club Membership

The aim of the study was to evaluate adolescent attitudes towards different aspects of sport activities, in relation to school level, gender and membership in a school sports club (SSC).

The Diagnostic Questionnaire for Testing Youth's Attitude towards Physical Education and Sport developed by Strzyżewski (1990) constituted the main research tool. The present paper analyzed responses to 11 selected questions, which reflect attitudes towards sport. Three aspects were studied (1) attitude towards sport as a social phenomenon, (2) attitude towards own participation in sports activities, and (3) attitude towards school sport. The survey was launched in 623 clubs, which were randomly selected from the database of the Polish Ministry of Sport. A total of 2704 correctly filled-in questionnaires were subjected to statistical analysis.

Respondents demonstrated positive attitudes towards all three variables of interest. Non-SSC pupils/students were not different towards sport. Such situations were observed among girls from all school levels and only in a small part of the boys. However, based on the obtained results, it can be concluded that school level does not cause significant differences in adolescent attitudes towards sport (p=0.36). The attitudes are influenced by gender (attitude towards own participation in sports activities and attitude towards school sport - p<0.001) and participation in sports club activities (attitude towards sport as a social phenomenon, attitude towards own participation in sports activities, and attitude towards school sport - p<0.001).
Pedometers as a Method for Modification of Physical Activity in Students
Authors: Groffik Dorota , Frömel Karel , Pelclová Jana
Published: August 2009

Pedometers as a Method for Modification of Physical Activity in Students

Developing the awareness of one's level of physical activity is an important prerequisite to change one's lifestyle into a more physically active and healthy style of living. The aim of the study is to verify the efficacy of pedometers in educational environments and to specify the differences between physical activity in boys and girls aged 17. Twenty seven boys and thirty seven girls from randomly selected classes in two high schools in Katowice, Poland participated in the study. Students wore Yamax SW-700 pedometers for three weeks, continuously recorded data from the pedometers, and used the motivational feedback booklets. The three-week intervention using pedometers was complemented with the IPAQ questionnaire to assess their physical activity during the last seven days.

For statistical analysis, we used basic statistical characteristics, Mann-Whitney test, repeated ANOVA, "effect size" coefficient ω2 (Tolson, 1980), and other partial analysis programs in Statistica 6 and SPSS 15.

Both boys and girls were less physically active on weekend days during the analyzed period. The use of pedometers did not decrease the difference between physical activity on school days and weekend days. No significant differences were found in the average number of steps per day between boys and girls, as well as no significant differences were identified in the interaction of gender vs. school and weekend days.

Additional study is necessary to confirm whether the use of pedometers in physical education classes can help decrease the differences in physical activity between boys and girls.
Evaluation of Tennis Match Data - New Acquisition Model
Authors: Djurovic Niksa , Lozovina Vinko , Pavicic Leo
Published: August 2009

Evaluation of Tennis Match Data - New Acquisition Model

The purpose of this research was to analyze and interpret the latent (factor) area of a tennis match. The entities in this research make 128 tennis matches played at the 2007 and 2008 Grand Slams hard court surfaces. The variables were created by use of the official statistics kept by the IBM Software - IBM DB2 Universal Database. The original variables were standardized to the number of sets in a match. A factor analysis under a component model was conducted. The number of factors retained, which was determined by the G-K criterion, explained 83.38 % of the total variance. Five significant factors substantiated the hypothesis established in this paper. The first factor named Match Successfulness is determined by the total number of break points; break points won and received points. The second factor named First Serve Significance is determined by the total number of first serves and winning points after the first serve. The third factor named Serve Speed is determined by the average speed of the serve and the fastest serve. The fourth factor named Net Play is determined by the total net approaches as well as the winning points after net approaches which are directly dependent on the total number of serves. The fifth factor named Play Errors is determined by unforced and double-fault errors. Winning matches differentiate from the lost matches by a smaller number of unforced and double-fault errors; considerably better results of the first serve, maximum serve speed and the number of aces scored, high score of total break points and break points won. The facts that do not differentiate winning matches from the lost ones are: first serves total, first serve throw-in, winning points after the first serve, number of net approaches and winning points after net approaches. The classification results show that with a system of 15 variables it is possible to recognize 96.0% of lost and 96.9% of winning matches. The achieved results indicate that the official match statistics with a modified system of 15 selected variables can properly interpret and predict match successfulness. This enables creators of a match observation system to valorize and enhance it with new indices.
Does Pelvic Asymmetry always Mean Pathology? Analysis of Mechanical Factors Leading to the Asymmetry
Authors: Gnat Rafał , Saulicz Edward , Biały Maciej , Kłaptocz Patryk
Published: August 2009

Does Pelvic Asymmetry always Mean Pathology? Analysis of Mechanical Factors Leading to the Asymmetry

Pelvic asymmetry is a phenomenon of dual character. Some describe it in terms of pathology, whereas others report that pelvic asymmetry also occurs in healthy subjects.

A group of 321 subjects showing symmetrical alignment of the pelvis were involved in the study. Different forms of mechanical loads (jumps, resistance exercises of selected muscle groups) were tested for their ability to alter the configuration of the lower girdle. A hand inclinometer was used to measure pelvic asymmetry in standing. Asymmetrical configuration of the pelvis appears frequently as a consequence of mechanical loading of the lower girdle. It was registered in 25.08% of our study group. The greatest capacity to introduce pelvic asymmetry appeared in cases of asymmetrical loads that were applied in a form of so-called ‘mechanical shock’ (i.e., a force with great impulse). From this viewpoint, pelvic asymmetry should be regarded as a physiologic adaptative alteration of the locomotory system to transmission of asymmetrical mechanical loads.
Validity of Mechanical Power Output Measurement at Bench Press Exercise
Authors: Jandaĉka Daniel , Vaverka František
Published: August 2009

Validity of Mechanical Power Output Measurement at Bench Press Exercise

In sport training and rehabilitation practice, it is usual to use methods of mechanical muscle power output measurement, which are based mainly on indirect force measurement. The aim of this study was to verify the validity of indirect measurement for mechanical muscle power output with bench press exercise. As a criterion of validity, we selected a combination of kinematic and dynamic analyses. Ten men participated in this study. Average age of tested subjects was 28.0 ± 3.4 years. At mechanical power output measurement, these subjects lifted at maximum possible speed loads of 18, 26.5, 39.2 and 47.7 kg. Validity of mechanical power output measurement by means of a method using indirect force measurement was estimated using Spearmen's Correlation Coefficient. Factual significance of differences in average values of power output, force and velocity, measured by a method using indirect force measurement, in comparison to the selected criterion, was evaluated by means of effect of size. Power output measurement method using indirect force measurement showed lower values of force in relation to the criterion in the whole scope of selected loads. Velocity values in the whole scope of selected loads did not show any significant difference between the criterion and the verified method. The mechanical muscle power output measured by the method using indirect force measurement is lower in relation to the criterion, especially in the low scope of loads, where also validity rate was low (R = 0.5).
Effect of Wearing the Cosmed K4b2 Metabolic System on 1 Mile Walking Performance in Older Adults
Authors: Gault Mandy , Clements Richard , Willems Mark
Published: August 2009

Effect of Wearing the Cosmed K4b2 Metabolic System on 1 Mile Walking Performance in Older Adults

This study examined in older adults the effects of wearing the Cosmed K4b2 metabolic system with face mask during the 1-mile Rockport Fitness Walking Test (RFWT). A randomised cross-over design was used (13 males, 12 females, age: 67±4 (yrs). Walking time, walking speed and final heart rate were recorded and predicted VO2max calculated. Participants had a constant walking speed during the RFWT (P = 0.24) not influenced by wearing the Cosmed K4b2. Using Bland-Altman analysis, bias for walking time, heart rate and predicted VO2max was not significant. The predicted VO2max wearing the Cosmed K4b2 was within 0.05±0.36 L·min-1. Wearing the Cosmed K4b2 metabolic system with face mask did not influence 1-mile walking performance in older adults. This observation allows the Cosmed K4b2 metabolic system to be used during walking tests in older adults to examine metabolic and physiologic adaptations by controlled exercise interventions.
Lactate Threshold (D-Max Method) and Maximal Lactate Steady State in Cyclists
Authors: Czuba Miłosz , Zając Adam , Cholewa Jarosław , Poprzęcki Stanisław , Waśkiewicz Zbigniew , Mikołajec Kazimierz
Published: August 2009

Lactate Threshold (D-Max Method) and Maximal Lactate Steady State in Cyclists

The Maximal Lactate Steady State (MLSS) is defined as the highest workload that can be maintained over time where there is a balance between lactate production and lactate clearance. Therefore, determination of this workload is very importance for diagnosis of aerobic capacity and training program design.

The main objective of this study was to evaluate the validity of lactate threshold values determined by the D-max method as related to MLSS in cyclists. The research material included 10 female (body height 167±5.7 cm; body mass 56±4.8 kg; percent body fat 12.3±2.1) and 10 male well-trained cyclists (body height 183.5±4.4 cm; body mass 73.2±4.1 kg; percent body fat 7.9±2.6). The research had two distinct phases, separated by one day of active recovery. During the first phase, progressive tests were carried out to determine lactate threshold and maximal oxygen uptake in each subject. During the second phase, each athlete performed a series of 30-min ergocycle tests, with a fixed workload to establish maximal lactate steady state.

Results showed no significant differences between lactate threshold workload (WRLT), determined by the D-max method, and maximal lactate steady state workload (WRMLSS) in female and male cyclists, expressed in absolute and relative values. Differences between male and female cyclists in absolute and relative values of WRLT, WRMLSS, and WRmax were significant (p<0.05), but in relative values there was a tendency for decreased differences between groups. The oxygen uptake at the lactate threshold and MLSS were significantly (p<0.05) different. Also, a significant (p<0.05) difference was observed in values of heart rate and lactate concentration at the lactate threshold and MLSS. The analysis of changes in lactate concentration, heart rate and oxygen uptake between the 10th and 30th minutes of MLSS, indicates that there was a significant (p<0.05) increase in these values in male and female cyclists. The strong correlation (r=0.97; p<0.05) between WRLT and WRMLSS was found. Also, a significant correlation between (r=0.96; p<0.05) WRMLSS and peak workload during the incremental test (WRmax) (r=0.96; p<0.05) was also observed.
Relationships Between Systolic Time Intervals and Heart Rate During Initial Response to Orthostatic Manoeuvre in Men of Different Age
Authors: Cybulski Gerard , Niewiadomski Wiktor , Strasz Anna , Laskowska Dorota , Gąsiorowska Anna
Published: August 2009

Relationships Between Systolic Time Intervals and Heart Rate During Initial Response to Orthostatic Manoeuvre in Men of Different Age

An analysis of transient changes in physiological parameters in response to the standardized tests could be used to evaluate the efficiency of the regulatory processes. Relationships between systolic time intervals and heart rate following the action of standing up from the supine position were investigated in 41 healthy men, aged 20 to 59 years, classified into three groups: (22 to 26 yrs, n=14), (33 to 49, yrs, n=13) and (51 to 59 yrs, n=14). The protocol consisted of the following sequence: laying down (20 minutes) - standing up (8 minutes). Ejection time, pre-ejection period, electromechanical systole, heart rate and the length of R-R intervals were continuously calculated using automatized impedance cardiography and electrocardiogram. The ratio of ejection time to pre-ejection period in young men was significantly higher in comparison with the other groups. The ratio of ejection time to the length of R-R interval increased with age in supine position and after standing up when R-R interval was maximal. It was suggested that changes of ejection time to pre-ejection period during the orthostatic manoeuvre are rather the result of balance between heart rate and hemodynamic factors, than solely related to heart rate.
The Recovery Phase Following a Triple Iron Triathlon
Authors: Knechtle Beat , Vinzent Tristan , Kirby Steve , Knechtle Patrizia , Rosemann Thomas
Published: August 2009

The Recovery Phase Following a Triple Iron Triathlon

The purpose of this case study was to investigate the recovery phase in a single athlete after a Triple Iron Triathlon involving 11.4 km swimming, 540 km cycling and 126.6 km running. Total body mass, body fat and skeletal muscle mass using the anthropometric method as well as total body water using bioelectrical impedance analysis were determined pre race, after the race and every 24 hours until complete recovery. Parameters of hydration status (urinary specific gravity, hematocrit and plasma sodium) and skeletal muscle damage (plasma urea) were measured at the same time. After finishing the race within 42 hours, total body mass was decreased and total body water was increased. Over the following 6 days, prior to returning to pre race values for plasma volume and total body water, body mass reached a peak value on day 3, plasma volume on day 2 and total body water on day 1. Clinically visible edemas of the feet persisted until day 4. Six days after the race, body mass was reduced by 2.1 kg, skeletal muscle mass by 0.6 kg and fat mass by 0.7 kg. An increase in both blood urea and urinary output post race between days 3 and 6 suggested an impairment of renal function immediately post race due to skeletal muscle damage and manifesting clinically observed edemas. For practical application, athletes, coaches and physicians should anticipate that performing such an ultra-endurance race can lead to considerable edemas of the lower limbs during the recovery phase.
Comparison of Division II College Offensive and Defensive Football Players' Upper Body Strength Across One Repetition Maximum Test and The NFL-225 Test
Authors: Agbuga Bulent , Slovak John , Konukman Ferman , Yilmaz Ilker
Published: August 2009

Comparison of Division II College Offensive and Defensive Football Players' Upper Body Strength Across One Repetition Maximum Test and The NFL-225 Test

The purpose of this study was to evaluate the effectiveness of predicting actual one repetition maximum (1RM) bench press strength from the National Football League (NFL) 225-test in college football players. Forty-one Division II college football players participated in this study. Participants' upper body strength scores were expressed relative to body weight and results were compared across both tests. Mayhew et al. equation was used to predict 1RM. A repeated measures ANOVA and one-way ANOVA was used to compare the groups. The present study found that the Mayhew equation overestimated relative upper body strength of college football players, while high degree of reliability was found between the actual 1RM and the NFL-225 tests [Wilks λ = 0.43, F (1,40) = 53.07, p = 0.000, Eta-squared = 0.57] and the correlation between these two tests was very high (r = 0.94, p<0.001). The present study also found that defensive players were stronger than offensive players when scores were expressed relative to body weight. The finding of this study indicates that the NFL-225 test's applicability may not be identical for all college players. This study elucidates some of the difficulties associated with predicting 1RM. However, while it is difficult to predict 1RM, testing using sub-maximal loads are far less time consuming especially when they involve a large number of athletes. The results of this study should facilitate coaches in choosing the most appropriate strength testing procedure for their programs.
Aerobic Capacity of Students with Different Levels of Physical Activity as Assessed by IPAQ
Authors: Mynarski Władysław , Rozpara Michał , Czapla Krzysztof , Garbaciak Wiesław
Published: August 2009

Aerobic Capacity of Students with Different Levels of Physical Activity as Assessed by IPAQ

International Physical Activity Questionnaire (IPAQ) has become one of the world's most valuable tools for measuring physical activity in different groups or populations.

The relationship between regular, moderate-intensity physical activity and health parameters including physical fitness and aerobic capacity has been clearly proven by numerous investigations throughout the world.

The aim of the present study was to determine the magnitude of differences in absolute & relative (lxmin-1, mlxkg-1xmin-1) VO2 max, by using the Astrand-Ryhming normogram in students aged 19 to 24 years, depending on their weekly energy expenditure (METminxweek-1), as diagnosed with IPAQ.

The significance of differences in aerobic capacity between highly and moderately active students was evaluated. The Pearson correlation coefficient was calculated as a measure of the strength of the correlation between the above parameters in female and male groups.

VO2 max was significantly higher in male and female participants, with a high level of physical activity, as determined through IPAQ criteria.
Knowledge Areas Necessary for Successful NCAA Division III Certified Athletic Trainers: NCAA Division III Certified Athletic Trainers' Perceptions
Authors: Schneider Robert
Published: August 2009

Knowledge Areas Necessary for Successful NCAA Division III Certified Athletic Trainers: NCAA Division III Certified Athletic Trainers' Perceptions

NCAA Division III head certified athletic trainers (ATCs) (n=185) were surveyed to determine knowledge areas needed by ATCs to be successful as Division III ATCs. A Likert-like scale survey consisted of 12 athletic training related knowledge areas and included the following five point scale: essential, very important, important, not very important, and irrelevant. Findings indicated that it is important that Division III ATCs have all 12 knowledge areas to be successful. Although injury-related knowledge areas were considered essential, all of the knowledge areas were at least considered important to the success of ATCs, and none were considered irrelevant. Those involved in athletic training curricular issues should place or continue to place the most emphasis on areas related to injuries.
The Effects of Water Exercises and Swimming on Physical Fitness of Children with Mental Retardation
Authors: Yılmaz Ilker , Ergu Nevin , Konukman Ferman , Agbuğa Bulent , Zorba Erdal , Cimen Zafer
Published: August 2009

The Effects of Water Exercises and Swimming on Physical Fitness of Children with Mental Retardation

The purpose of this study was to determine the effects of water exercises and swimming on physical fitness of children with mental retardation. Nine trainable and 7 educable male children (n = 16) were recruited from a rehabilitation center. The mean ages of the groups were 12.22±0.49 and 14.71±0.52 years, respectively. Training program was applied for 10-week, two times a week for 40 minute each session. Pre- and post-tests measurements were taken for cardiovascular endurance, muscle endurance, speed, static balance, and agility. Results showed that both groups improved significantly (p<0.05) in all dependent variables. Water exercises and swimming appear to be a viable and effective way to improve physical fitness capacity of the children with mental retardation.
Palaeoenvironmental reconstruction of the Oligocene Afales Basin, Ithaki island, western Greece
Authors: Drinia Hara
Published: August 2009

Assemblages of benthic foraminifera from one clastic succession in the Afales Basin (Ithaki Island, western Greece) were investigated to reconstruct palaeoenvironmental conditions during the Oligocene. The section consists of alternating hemipelagic marls and detrital deposits, designated as flysch-like beds, attributed to biostratigraphic Zones P20 and P21. Planktic percentages are mostly high (66–80%). Benthic foraminiferal assemblages comprise calcareous and agglutinated taxa (up to 15%). The prevalence of epifaunal foraminifera indicates good ventilation of the bottom water resulting from basin morphology, which enabled the undisturbed flow of water throughout the basin. Palaeodepth estimates imply bathyal deposition, from about 800 to 1200 m deep. The benthic foraminiferal fauna is of high diversity along the section, as is expected in deep marine environments. The abundances of the most common foraminiferal taxa (Cibicidoides spp., Oridorsalis umbonatus, Gyroidinoides spp., Stilostomella spp., Nodosariidae, Nuttallides umbonifera) are quite variable and imply generally oligotrophic to mesotrophic environmental conditions with variable organic flux.
Geological mapping by geobotanical and geophysical means: a case study from the Bükk Mountains (NE Hungary)
Authors: Németh Norbert , Petho Gabor
Published: August 2009

Geological mapping of an unexposed area can be supported by indirect methods. Among these, the use of mushrooms as geobotanical indicators and the shallow-penetration electromagnetic VLF method proved to be useful in the Bükk Mountains. Mushrooms have not been applied to geological mapping before. Common species like Boletus edulis and Leccinum aurantiacum are correlated with siliciclastic and magmatic formations while Calocybe gambosa is correlated with limestone. The validity of this correlation observed in the eastern part of the Bükk Mts. was controlled on a site where there was an indicated (by the mushrooms only) but unexposed occurrence of siliciclastic rocks not mapped before. The extent and structure of this occurrence were explored with the VLF survey and a trial-and-error method was applied for the interpretation. This case study presented here demonstrates the effectiveness of the combination of these relatively simple and inexpensive methods.
Impact of metallurgy on the geochemical signature of dusts, soils and sediments in the vicinity of Elbasan complex (Albania)
Authors: Shtiza Aurela , Tashko Artan , Swennen Rudy , Brande Adelheit
Published: August 2009

An investigation of the metallurgical complex surroundings in Elbasani, Albania used background samples to rule out the level of contamination in the study area. Our results show that atmospheric dust particles and soils are of high concern while overbank sediments and actual river sediments are of lower concern. The heavy metals with concentrations of up to 5 times above the local background values are Zn, Cr, Ni, Cu, Fe and Co in soils; Fe, Cr, Co, Ni, Zn, Pb in dust particles; and, Cr and Zn in the actual river/stream sediments. Due to the small size of the dust particles and the atmospheric transportation mechanism primarily related to prevailing winds, the concern for the transport of dust particles is high, especially with respect to risks associated with inhalation. The people working and living in the vicinity of the metallurgical complex of Elbasani are at the highest risk of exposure. Concerns relating to soils are associated with the potential for translocation of the trace element particles into vegetation, in particular, within the upper part of the plants. Therefore, the consumption of the vegetables grown in the vicinity of the metallurgical site should be avoided. Special attention has been given to the Shkumbini river, where the long residence time of water and particulates may result in transitions of trace elements between dissolved and particulate phases downstream.
Landscape change analysis and assessment (case studies in Slovakia and Bulgaria)
Authors: Feranec Jan , Kopecka Monika , Vatseva Rumiana , Stoimenov Anton , Otahel Jan , Betak Juraj , Husar Karol
Published: August 2009

Landscape change assessment was conducted in selected areas of Slovakia and Bulgaria in 1990–2000 using CORINE land cover (CLC) data layer analysis. Assessment of causes that led to these changes was undertaken, with an emphasis on those that determined the extensification of agriculture. The LC data were obtained under the CLC90 and I&CLC2000 projects, jointly managed by the European Environment Agency in Copenhagen, Denmark and the Joint Research Centre of the European Commission in Ispra, Italy. The CLC1990-2000-changes data layer was generated by overlaying the CLC90 and CLC2000 data layers for change in areas of a minimum 5 ha. The analysed causes of changes (driving forces) were then classified. Land cover (LC) changes characterizing urbanization processes occurred only in the Trnava and Tatras areas. Intensification of agriculture was also higher in these two areas. LC changes characterizing the extensification of agriculture were dominant in Plovdiv and Trnava. Deforestation and forestation were identified in all areas (Trnava, Tatras, Plovdiv, and Burgas). The basic reasons of these changes were related to the transformation of national economies from being centrally planned to market controlled, following the fall of socialism and before the countries joined the European Union.
On the occurrence of a pumice-rich layer in Holocene deposits of western Peloponnesus, Ionian Sea, Greece. A geomorphological and geochemical approach
Authors: Bathrellos George , Vasilatos Charalampos , Skilodimou Hariklia , Stamatakis Michael
Published: August 2009

A single, pumice-rich sandy horizon located in Holocene deposits of western Peloponnesus, Ionian Sea, Greece has been newly detected in a littoral belt 250 m wide and more than 3km long. Pumice fragments are hosted in siliceous-cherty sand that overlies coarser clastic sediments, and occur in varying sizes. The geomorphology of the area and the development of two dune systems played an important role in the entrapment of the pumice fragments. These were transported there by the wind and marine currents, rather than by a tsunami event. The chemistry of the pumice fragments is constistent throughout the deposit. Major and trace element analysis of the pumice suggests an origin in the south Aegean Volcanic Arc, rather than in southern Italy and surroundings. The age of this deposition is thought to be younger than 4,000 years before present.
Determination of the separability of coastal community assemblages of the Al Wajh Barrier Reef, Red Sea, from hyperspectral data
Authors: Hamylton Sarah
Published: August 2009

Remote sensing provides a practical means by which coral reefs and their associated communities are commonly mapped. The availability of spectral information is a key determinant of the detail discernable in the mapping process and consequent detail presented in output maps. Testament to this is the increasing utility of hyperspectral sensors, which typically yield datasets of higher resolution, spectrally continuous wavebands. Image classification algorithms distinguish between the different and unique reflectance characteristics of target features. While the availability of more wavebands provides the opportunity to apply analysis techniques that treat the data as spectrally continuous, such a large number of data dimensions also present a considerable computing burden. Through multiple discriminant function analysis, this paper identifies an optimal subset of wavelengths for resolving the reflectance of key terrestrial and marine coverages at the Al Wajh Barrier reef system, Saudi Arabia, Red Sea. The goal of such analysis is to facilitate the processing of high resolution, spectrally continuous remote sensing data of coastal landscapes.
Distribution and sorption of potentially toxic metals in four forest soils from Hungary
Authors: Sipos Péter
Published: August 2009

Metals of natural and anthropogenic origin behave differently in soils mostly due to their different mobility. In this study, sequential extractions and batch sorption experiments were performed to relate the fractionation of native Ni, Cu, Zn and Pb to the sorption properties of added metals in four soils with contrasting physiochemical characteristics. A significant effect due to sample composition on both the mobility and sorption characteristics of these metals was found. The efficiency of soil components in metal immobilization was in the order of carbonate > organic matter > swelling clay minerals. The partitioning of native metals together with the information gained through the sorption isotherms allows a deeper insight on the fate and behavior of metals in soils with various compositions.
Variations in solar and geomagnetic activity with periods near to 1.3 year
Authors: Střeštïk Jaroslav
Published: August 2009

It is known that solar wind velocity fluctuates regularly with a period of about 1.3 years. This periodicity (and other signals with periods near to 1.1 and 0.9 years) has also been observed in biological data. The variation is a temporary feature, mostly being observed in the early 1990s. Here, the occurrence of these periodic signals in solar and geomagnetic activity between 1932 and 2005 has been investigated. The signal with 1.3 year period is present in geomagnetic activity only in a short interval after 1990 and to a lesser extent around 1942. At other times the signal is very weak or not present at all. Other periods are much lower amplitude and appear only sporadically throughout the time investigated. A connection between these periods and solar cycles (e.g. different even or odd cycles) has not been proven. It is possible that there is a long-term periodicity in the occurrence of the 1.3 year period but the time series data available is insufficient to confirm this. There are no such periodicities in solar activity. In order to gain a greater understanding of these periodic signals, we should search for their origin in interplanetary space.
Groundwater and soil geochemistry of the Eastern Kopaida region (Beotia, central Greece)
Authors: Tziritis Evangelos
Published: August 2009

The Kopaida plain is a cultivated region of Eastern Greece, with specific characteristics related to the paleogeographic evolution and the changes in land use of the area. This study examines the geochemical conditions of the groundwater and soil, and the correlations between them. 70 samples (50 samples of groundwater and 20 samples of soil) were collected in order to asses the geochemical status and the major natural and manmade affecting processes in the region. Extended chemical analyses were carried out including the assessment of 28 parameters for groundwater and 13 for soil samples. The results revealed that groundwater geochemistry is influenced primary by natural processes such as the geological background, and secondary by manmade impact mainly deriving from the extended use of Nitrogen-fertilizers and the over-exploitation of boreholes. Soil geochemistry is influenced exclusively by natural processes, such as weathering of the prevailing geological formations. Chemical analyses and the statistical processing of data revealed that the major factor for the geochemical status of soils is the weathering of the karstic substrate, as well as the existing lateritic horizons and a weak sulfide mineralization.
Continental and oceanic precipitation régime in Europe
Authors: Mikolaskova Katerina
Published: August 2009

This work considers continentality from the point of view of an annual course of precipitation. It assesses continentality according to percentage of precipitation in summer and winter half year, ratio of precipitation in summer to winter half year and the period of half year precipitation in the area of WMO Region VI (Europe). Region VI can be divided into five main regions according to their annual course of precipitation. These regions are: Northwestern Europe with precipitation in all seasons, a predominance of winter precipitation and maximum precipitation in December and January; Central Europe with precipitation in all seasons, a predominance of summer precipitation and maximum precipitation in July; Eastern Europe with less precipitation over the year than in Northwestern Europe, a predominance of summer precipitation and maximum precipitation in July; the Mediterranean region with a predominance of winter precipitation, a dry season in summer and maximum precipitation in November and December; and Western Asia with a variable climate, a predominance of winter precipitation and maximum precipitation in December and January. Continentality from the point of view of precipitation rises towards the east. In comparison with thermal continentality, according to Gorczynski, it unexpectedly reaches its maximum in the centre of Europe (especially in northeast of the Czech Republic and south of Poland).
Expanding the Cenozoic paleoceanographic record in the Central Arctic Ocean: IODP Expedition 302 Synthesis
Authors: Backman Jan , Moran Kathryn
Published: August 2009

The Arctic Coring Expedition (ACEX) proved to be one of the most transformational missions in almost 40 year of scientific ocean drilling. ACEX recovered the first Cenozoic sedimentary sequence from the Arctic Ocean and extended earlier piston core records from ≈1.5 Ma back to ≈56 Ma. The results have had a major impact in paleoceanography even though the recovered sediments represents only 29% of Cenozoic time. The missing time intervals were primarily the result of two unexpected hiatuses. This important Cenozoic paleoceanographic record was reconstructed from a total of 339 m sediments. The wide range of analyses conducted on the recovered material, along with studies that integrated regional tectonics and geophysical data, produced surprising results including high Arctic Ocean surface water temperatures and a hydrologically active climate during the Paleocene Eocene Thermal Maximum (PETM), the occurrence of a fresher water Arctic in the Eocene, ice-rafted debris as old as middle Eocene, a middle Eocene environment rife with organic carbon, and ventilation of the Arctic Ocean to the North Atlantic through the Fram Strait near the early-middle Miocene boundary. Taken together, these results have transformed our view of the Cenozoic Arctic Ocean and its role in the Earth climate system.
Bayesian analysis of data and model uncertainty in 3D seismic travel-time tomography
Authors: Arvanitis Michael , Vlamos Panagiotis
Published: August 2009

We present a probabilistic analysis of seismic travel-time equations using the Bayesian Method. The assessment of models and data is crucial in 3D seismic travel-time tomography, and a method quantitatively assess the quality of both the data and the model is necessary in order to attain the most realistic results. The Bayesian method that we propose here is more effective than the frequentist approach, both in analysis time and uncertainty minimization, when processing large sets of tomographic data.
The geochemistry of Boron-rich groundwater of the Karlovassi Basin, Samos Island, Greece
Authors: Stamatakis Michael , Tziritis Evangelos , Evelpidou Niki
Published: August 2009

The upper Miocene of Karlovassi Basin, Samos Island, Greece, contain continental evaporites such as colemanite, ulexite, celestite, gypsum and thenardite. These evaporites are related with volcanic tuffs, diagenetically altered in a saline-alkaline lake environment. The aim of the present paper is to: a) define the impact of the already known and possible buried borates and other evaporites to the geochemistry of the hydrogeological system of Karlovassi Basin, and; b) to assess the correlation between surface and underground evaporite deposits considering the spatial changes in the concentrations of the examined physicochemical parameters. Fieldwork, laboratory measurements and literature data revealed elevated boron values (2136–33012 ⧎/L) in the central part of Karlovassi Basin. In the same area, high amounts of strontium, sodium, lithium and sulfates also occur. It is proposed that these ions originate from the leaching of evaporites and authigenic minerals such as the Sr-rich clinoptilolite and the boron-bearing potassium feldspar. Boron values are abnormally high for freshwater aquifers, and are indicative of the presence of buried evaporites in the basin with unknown significance.
Appropriate sampling strategy and analytical methodology to address contamination by industry: Part 1. Conceptual model of a sampling design and sampling types
Authors: Shtiza Aurela , Tashko Artan
Published: August 2009

This paper presents the results of a literature review on the conceptual model of a sampling design and the different types of samples that can be used to characterize the nature and the extent of contamination at a specific site. The main findings stress the importance of sampling for obtaining relevant sample types and subsequent-qualitative results. The proposed sampling design can be used for environmental studies where, the efficient use of time, money, and human resources are very critical. A good quality sampling design should meet the needs of the study with a minimum expenditure of resources.
Investigation of hydrogen sulphide eruptions along the Namibian coastline using different remote sensing systems
Authors: Ohde Thomas
Published: August 2009

Hydrogen sulphide eruptions with their typical turquoise discolorations at the water surface are a unique phenomenon along the Namibian coastline. The remote sensing techniques of ocean colour sensors and microwave scatterometers were used for the investigation of such events. The studies with ocean colour sensors showed that the turquoise discolorations near the Namibian coast were neither linked to dust deposition into the water column by desert storms nor to the reflection of bright material in shallow water areas. In addition, other coloured marine events like algae blooms and river outflows were differentiable from the hydrogen sulphide eruptions by their special optical properties. Quasi-true colour images and spectral identification methods were utilised to monitor and investigate the spatial and temporal distribution of sulphide events. In the past years, they were sometimes and locally limited discovered. Newest remote sensing observations including our own investigations have established that the occurrence of sulphide events is more frequent and longer lasting. The north-westerly direction of propagation and their velocity between 12 cm s-1 and 15 cm s1 were derived from an event on 14 April 2004. Lastly, the microwave scatterometer remote sensing was applied to investigate the relation of sulphide events to oceanographic conditions. The events from May 2004 were clearly related to strong coastal upwelling.
Utilization of remote sensing data and GIS tools for and use sustainability analysis: case study in El-Hammam area, Egypt
Authors: Mahmoud Ali , Shendi Mahmoud , Pradhan Biswajeet , Attia Fatma
Published: August 2009

The North-Western Coast of Egypt (NWCE) represents one of the high priority regions for future development in the country. El-Hammam area is located in the NWCE with an area of 94752 acres and is one of the main challenging regions for sustaianble development. In this study, we have used remote sensing and soil data in combination with GIS tools, for land use sustainable analysis (SLU) in El-Hammam area. The SLU was established based on various factors such as: land capability and suitability, water resources availability, economic return from water and financial return from land and water. A physiographic soil map for the study area was prepared using remote sensing and GIS. Multiple field surveys were carried out for collecting information on various soil map units (SMUs) and their profiles. Laboratory analysis for the collected samples was performed, and then the soil properties were stored as attributes in a geographical soil database linked with the SMUs. Furthermore, land capability assessment was done to define the suitable areas for agricultural production using a capability model built in ALES software. Results indicate that the area currently lacks high capability and moderate capability classes. By improving the soil properties, the soil can attain potential capability; and 55630 acres will become marginally capable. The assessment of soil physical suitability for different land use types (LUTs) were analysed in ALES software, in order to generate the most suitable areas. The results from the land suitability analysis indicated that, 17114 acres are moderately suitable for wheat and sorghum; whereas 15823 acres are moderately suitable for barley and 12752 acres are moderately suitable for maize, olive and figs. Finally, the SLU was investigated based on two scenarios; (1) the most SLU under the conditions of shortage of irrigation water: clover, barley and sorghum against figs, as the irrigation requirements for barley and sorghum are low; (2) the most sustainable land use in the conditions of irrigation availability will be wheat and maize against figs and guava. From the results it is quite evident that GIS combined with modeling approaches are powerful tools for decision making in the study area.