bluuebunny/crossref_metadata_2025 huggingface dataset:
Developing a Measure to Evaluate a Positive Youth Development Program for Native Hawaiians
Authors: Sy A. , Greaney M. , Nigg C. , Hirose-Wong S. M.
Published: December 2011

Objective. This study introduces the rubrics of Native Hawaiian values developed to measure youth knowledge and understanding of indigenous values along with 8 other tools to evaluate Hui Mālama o ke Kai (HMK), a culturally relevant, positive youth development, after-school program in a Native Hawaiian community. Findings from our efforts to validate the rubrics tool, as an evaluation measure, using triangulation are presented. Methods. Evaluation tools were modified through community input and measured youth risk and protective factors, including knowledge and practice of Hawaiian values. Validity and reliability of the tools were tested by analyzing internal consistency, intraclass correlations, and triangulating data sources. Results. Corroboration of results from the different data sources indicated convergent validity of measures to evaluate youth understanding and practice of Hawaiian values. Conclusions. This community-focused approach to evaluation demonstrates how multiple evaluation instruments may reliably evaluate a program.
Self-Reported Functional and General Health Status Among Older Respondents in China
Authors: Wu Bei , Yue Yuwen , Mao Zongfu
Published: December 2011

This study made comparisons of self-reported functional and general health status between Chinese women and men in different age-groups in rural and urban settings and examined multiple factors relating to these health statuses in older adults. This study included a sample of 4017 respondents, aged 55 years and older, from the Hubei subsample of the Chinese National Health Service Survey III in 2003. The results illustrate that the differences in self-rated functional and general health status between genders and between urban and rural areas diminished with age. Access to health care was strongly associated with health status. The quality of the local environment, measured by access to tap water, was a significant factor for rural residents. Our study suggests that improving access to health care services and reducing environmental health risks are critical for improving physical functioning, psychological functioning, and self-rated general health for older adults in China.
Overweight/Obesity and Related Factors Among Thai Medical Students
Authors: Ekpanyaskul Chatchai , Sithisarankul Pornchai , Wattanasirichaigoon Somkiat
Published: December 2011

This study was conducted to assess the prevalence of overweight/obesity and the related demographic data and health behaviors of Thai medical students. A cross-sectional study of 5441 medical students from all the 13 medical schools in Thailand was conducted in 2006 by means of a self-administered questionnaire. Demographic data, health behaviors, and self-reported body weight and height were recorded. The results revealed that Thai medical students have a lower prevalence of overweight/obesity than the general population of the same age group. The multiple logistic regression analysis showed that higher academic year was associated with being overweight or obesity in males, having improper dietary habits were associated with being overweight or obesity in both genders, whereas alcohol consumption was associated with being overweight in male only. Therefore, medical curricula should place an emphasis not only on knowledge but also on attitudes and behaviors for healthy lifestyles.
Impulsivity, Self-Regulation,and Pathological Video Gaming Among Youth
Authors: Liau Albert K. , Neo Eng Chuan , Gentile Douglas A. , Choo Hyekyung , Sim Timothy , Li Dongdong , Khoo Angeline
Published: December 2011

Given the potential negative mental health consequences of pathological video gaming, understanding its etiology may lead to useful treatment developments. The purpose of the study was to examine the influence of impulsive and regulatory processes on pathological video gaming. Study 1 involved 2154 students from 6 primary and 4 secondary schools in Singapore. Study 2 involved 191 students from 2 secondary schools. The results of study 1 and study 2 supported the hypothesis that self-regulation is a mediator between impulsivity and pathological video gaming. Specifically, higher levels of impulsivity was related to lower levels of self-regulation, which in turn was related to higher levels of pathological video gaming. The use of impulsivity and self-regulation in predicting pathological video gaming supports the dual-system model of incorporating both impulsive and reflective systems in the prediction of self-control outcomes. The study highlights the development of self-regulatory resources as a possible avenue for future prevention and treatment research.
Gender-Dependent Association of a β2-Adrenergic Gene Variant With Obesity Parameters in Malaysian Malays
Authors: Apalasamy Yamunah Devi , Ming Moy Foong , Rampal Sanjay , Bulgiba Awang , Mohamed Zahurin
Published: December 2011

Recent findings have shown that the rs1042714 (Gln27Glu) single-nucleotide polymorphism (SNP) on the β2-adrenoceptor gene may predispose to obesity. The findings from other studies carried on different populations, however, have been inconsistent. The authors investigated the association between the rs1042714 SNP with obesity-related parameters. DNA of 672 Malaysian Malays was analyzed using real-time polymerase chain reaction. Univariate and multivariate linear regression analyses revealed significant associations between rs1042714 and diastolic blood pressure in the pooled Malaysian Malay subjects under additive and recessive models. After gender stratification, however, a significant association was found between the rs1042714 and triglyceride and the rs1042714 and log-transformed high-density lipoprotein cholesterol levels in Malaysian Malay men. No significant association was found between the SNP and log-transformed body mass index. This polymorphism may have an important role in the development of obesity-related traits in Malaysian Malays. Gender is an effect modifier for the effect of the rs1042714 polymorphism on obesity-related traits in Malaysian Malays.
Hand, Foot and Mouth Disease in Yunnan Province, China, 2008-2010
Authors: Xu Wen , Jiang Li , Thammawijaya Panithee , Thamthitiwat Somsak
Published: December 2011

This study was done to assess the epidemic features of hand, foot and mouth disease in Yunnan Province. Surveillance data from the beginning of 2008 through the end of 2010 were analyzed to conduct the demographic data of patients and morbidity as well as the estimation between possible risk factors for severe or fatal cases. Of the 75109 cases reported, laboratory tests confirmed 3691 cases. Thus, the average annual incidence proportion was 55 per 100000 population with a total case fatality rate of 0.04%. A seasonal peak was observed in May, along with a smaller winter peak in 2010. Most severe and fatal cases were caused by enterovirus 71. It is demonstrated that most of the severe and fatal cases occurred in very young children and that delayed access to health care led to the higher likelihood of serious illness.
Social Support and Glycemic Control in Adult Patients With Type 2 Diabetes Mellitus
Authors: Chew BH , Khoo EM , Chia YC
Published: December 2011

Introduction. The purpose of this study is to examine the prevalence of social support and its association with glycemic control in patients with type 2 diabetes mellitus (T2D) in an urban primary care center within an academic institution. Social support is important in the management of chronic diseases. However, its association with glycemic control has been controversial. Methods. This was part of a study examining religiosity in T2D patients. Nonsmoking patients with T2D for at least 3 years and aged 30 years and above were recruited. Social support was measured using The Social Support Survey–Medical Outcomes Study (SS), a self-administered questionnaire; the scores range from 19 to 95, and a high score indicates better social support. Glycemic control was measured using the 3 most recent glycosylated hemoglobin (HbA1c) levels within the past 3 years. Results. A total of 175 participants completed the SS survey (response rate 79.0%). The mean age was 62.7 (standard deviation [SD] = 10.8) years, and the mean duration of diabetes was 11.74 (SD = 6.7) years. The mean HbA1c level was 8.15 (SD = 1.44). The mean SS score was 68.1. The prevalence of high and low social support were 29.7% and 24.0 %, respectively. A significant correlation was found between SS score and number of social supporters (n = 167). No significant correlation was found between the self-reported number of social supporters or the SS score and the mean HbA1c level. Conclusions. Social support was not associated with glycemic control in adult patients with T2D in this primary care setting.
The symbolic constitution of addiction: Language, alienation, ambivalence
Authors: Kemp Ryan
Published: December 2011

The author offers an articulation of addiction, via existential-phenomenology and Lacanian psychoanalysis, where it is argued that the addicted subject is constituted via a symbolic structuring evolving from societal practices, laws and the effects of language. Language carries a heritage, which bears on the knowledge and practices of designated subjects and practitioners of that discourse. Addiction, as one particular form of embodied existence and knowledgeable practice, finds expression through the speech and habits of the addict. Addiction, it is argued, is symbolically saturated with ambivalence and alienation. Also the addict is described as the complete modern technocratic subject, consumed by the ideology of consumption. The clinical implications are briefly explored where it is noted that two major approaches to addiction, namely 12-step fellowships and motivational interviewing, both attend to language as a critical component of their treatment approach.
Domesticating the tourist gaze in Thessaloniki's Prigipos
Authors: Tzanelli Rodanthi
Published: December 2011

The article examines how Prigipos, a café in the northern Greek city of Thessaloniki, communicates Greek cosmological themes through the way it ‘stages’ urban memories. The staging suggests an ‘Oriental’ tourist-like flânerie that matches, and is directed towards, the café's physical and symbolic surroundings (notably, the Turkish Consulate, the adjacent paternal house of Turkey's first President, Kemal Atatürk, but also the old part of the city, historically populated by Greek refugees from Anatolian Turkey). My ethnographic eye is examined as constitutive of this flânerie, especially since I grew up in Thessaloniki. Through the employment of mixed research tools and methods, I explore how Prigipos's spectacular self-presentation replaced old migrant kafeneion culture with new aesthetic fusions to enable its global consumerist mobility. At the same time, the article argues that old ethno-national formulas are enmeshed in Prigipos's design and narratives, endorsing a Thessalonikiote permutation of culture.
Disorderly community partners and broken windows policing
Authors: Muniz Ana
Published: December 2011

How do residents in community groups define deviance, community, and their relationship to local government? Relying upon approximately two years of multi-method ethnography, I argue that despite law enforcement attempts at dissuasion, community group members utilize the broken windows theory to portray street vending as a harbinger of crime. Residents request police action and demand government services based on the self-adopted identities of victim and consumer-citizen. The police, in turn, enact a model of community policing in which the public is restricted to a supportive role as informants and guarantors of quality-of-life issues. Both sides of the partnership deploy broken windows arguments in conflicting visions about the disorderly other.
Cultural theory and conflict management in organizations: How does theory shape our understanding of culture in practice?
Authors: Busch Dominic
Published: December 2011

Research studies on the management of cross-cultural conflict in organizations are put into an analytically structured synoptic model that helps to reveal a wide range of forms and of the extent of the assumed influence of culture on social interaction in organizational settings. Evaluations of competent conflict management strategies derived from these theories will differ respectively. Furthermore, the model may illustrate clusters of contemporary research vs idle approaches of research that may hide some potential for future studies. To bypass the influence of theories on the analysis of given conflict situations, this article will present a discourse analytic approach to discovering interactants' subjective notions of culture, which will be illustrated by means of an empirical example.
Exploring teamwork paradoxes challenging 21st-century cross-cultural conflict management in a multicultural organizational context
Authors: Plessis Yvonne du
Published: December 2011

This paper focuses on cross-cultural conflict and its management in a multicultural work environment affected by teamwork paradoxes, as perceived and experienced by multicultural team members working in project and management teams. A mixed research methodology was applied, using a quantitative confirmation of teamwork paradoxes in multicultural organizational environments, followed by a qualitative interpretivist approach exploring the perceived and felt cross-cultural conflicts and its management within the teamwork paradox context. Eight multicultural teamwork paradoxes were confirmed by 107 respondents to a survey questionnaire. Next, semi-structured individual interviews were conducted with 33 participants exploring cross-cultural conflict and its management within the eight identified teamwork paradoxes. The qualitative thematic data analysis provided insightful information on cross-cultural conflict management in multicultural team paradoxes relevant to project and management teams in a multicultural South African context. The multicultural team paradoxes and their managerial implications are explained in terms of cross-cultural conflict management on multiple levels.
The Salient Characteristics of Trained Ineffective Teachers in Secondary Schools in Kenya
Authors: Kodero Hezborn M. N. , Misigo Bernard L. , Owino Elizabeth A. , Simiyu Catherine K.
Published: December 2011

This study examined the salient characteristics of trained ineffective teachers in secondary schools in Kenya. Participants comprised 80 students from eight schools drawn from four provinces in the country. Of the 80 participants, 40 were females and 40 were males. This qualitative research adopted phenomenological design. Two research instruments—a biographical form and a blank sheet of paper—were used in data collection. Content analysis method was used in analyzing the written and nonquantitative data collected. Results of data analysis revealed 20 salient characteristics of trained ineffective teachers in secondary schools. These characteristics are as follows: wastage of students’ time, poor mastery of the subject, source of boredom to students, partial treatment of students, lack of respect for students, low level of self-confidence, poor mastery of teaching skills, emotional immaturity, inappropriate dressing, injurious to students, fond of frivolous talk, miscommunicate in class, poor in providing feedback, nondialogical in class, poor in maintaining discipline, immoral in behavior, unapproachable to students, poor in counseling, poor psychological health, and autocratic to students. The findings of this study may be useful to stakeholders in education in developing instruments that may be used to identify ineffective teachers in schools.
VWF mutations and new sequence variations identified in healthy controls are more frequent in the African-American population
Authors: Bellissimo Daniel B. , Christopherson Pamela A. , Flood Veronica H. , Gill Joan Cox , Friedman Kenneth D. , Haberichter Sandra L. , Shapiro Amy D. , Abshire Thomas C. , Leissinger Cindy , Hoots W. Keith , Lusher Jeanne M. , Ragni Margaret V. , Montgomery Robert R.
Published: December 2011

Diagnosis and classification of VWD is aided by molecular analysis of the VWF gene. Because VWF polymorphisms have not been fully characterized, we performed VWF laboratory testing and gene sequencing of 184 healthy controls with a negative bleeding history. The controls included 66 (35.9%) African Americans (AAs). We identified 21 new sequence variations, 13 (62%) of which occurred exclusively in AAs and 2 (G967D, T2666M) that were found in 10%-15% of the AA samples, suggesting they are polymorphisms. We identified 14 sequence variations reported previously as VWF mutations, the majority of which were type 1 mutations. These controls had VWF Ag levels within the normal range, suggesting that these sequence variations might not always reduce plasma VWF levels. Eleven mutations were found in AAs, and the frequency of M740I, H817Q, and R2185Q was 15%-18%. Ten AA controls had the 2N mutation H817Q; 1 was homozygous. The average factor VIII level in this group was 99 IU/dL, suggesting that this variation may confer little or no clinical symptoms. This study emphasizes the importance of sequencing healthy controls to understand ethnic-specific sequence variations so that asymptomatic sequence variations are not misidentified as mutations in other ethnic or racial groups.
Emotion Perception and Alexithymia in People With Severe Traumatic Brain Injury: One Disorder or Two? A Preliminary Investigation
Authors: McDonald Skye , Rosenfeld Julia , Henry Julie D. , Togher Leanne , Tate Robyn , Bornhofen Cristina
Published: December 2011

Primary objective:Recent research studies attest to the presence of deficits in emotion perception following severe traumatic brain injury (TBI). Additionally, a growing number of studies report significant levels of alexithymia (disorder of emotional cognition) following TBI. This research aimed to examine the relation between the two, while assessing the influence of posttraumatic stress disorder (PTSD).Design:Cross-sectional study examining levels of alexithymia, emotion perception disorders and PTSD and their association, in 20 people with severe, chronic TBI and 20 adults without brain injuries.Methods:Participants were assessed on the Toronto Alexithymia — 20 Scale, the Posttraumatic Diagnostic Scale and on two emotion perception tasks: matching and labelling of photos depicting the 6 basic emotions.Results:The group with TBI were impaired relative to controls when matching facial expressions. Their performance on ‘fear’ was especially poor. Performance on labelling was similar in pattern, although failed to reach significance. There was no association between poor performance on fear, or other negative expressions, and either PTSD or alexithymia symptoms in the TBI group.Conclusions:Alexithymia, as assessed by the TAS-20, taps a constellation of difficulties that do not appear to include difficulties with emotion perception in people with traumatic brain injuries.
Computerised Cognitive Training for Older Persons With Mild Cognitive Impairment: A Pilot Study Using a Randomised Controlled Trial Design
Authors: Finn Maurice , McDonald Skye
Published: December 2011

The results of a pilot randomised controlled trial of computerised cognitive training in older adults with mild cognitive impairment (MCI) are reported. Participants (N = 25) were randomised into either the treatment or waitlist training groups. Sixteen participants completed the 30-session computerised cognitive training program using exercises that target a range of cognitive functions including attention, processing speed, visual memory and executive functions. It was hypothesised that participants would improve with practice on the trained tasks, that the benefits of training would generalise to nontrained neuropsychological measures, and that training would result in improved perceptions of memory and memory functioning when compared with waitlist controls. Results indicated that participants were able to improve their performance across a range of tasks with training. There was some evidence of generalisation of training to a measure of visual sustained attention. There were no significant effects of training on self-reported everyday memory functioning or mood. The results are discussed along with suggestions for future research.
National Taiwan University Irritability Scale: Evaluating Irritability in Patients With Traumatic Brain Injury
Authors: Yang Chi-Cheng , Huang Sheng-Jean , Lin Wei-Chi , Tsai Yi-Hsin , Hua Mau-Sun
Published: December 2011

Irritability is not uncommon after traumatic brain injury (TBI). Unfortunately, no instruments are available to directly measure this clinical feature. This study thus aimed to develop a specific scale to evaluate the irritability for patients with TBI. A total of 144 participants, which include 80 healthy participants and 64 patients suffering from TBI, were recruited. Irritability was assessed by the National Taiwan University Irritability Scale (NTUIS). Our results showed the NTUIS has good reliability. The factor analysis further revealed 2 different components: annoyance, and verbal aggression. Moreover, both self-reported and family-reported irritability postinjury were significantly higher than the irritability reported by the healthy participants. Indeed patients with TBI have significant problems with irritability after injuries, and thus a more specific assessment tool to carefully evaluate patients' irritability should be used.
Towards Prevention and Early Recognition of Stroke: The Australian Context
Authors: March Evrim G.
Published: December 2011

Stroke is a preventable disease leading to physical, cognitive and emotional disability. Its high prevalence and poor outcome shifts this disease from the clinical, medical realm to a significant public health problem. This article provides an overview of the problem, and the status of stroke prevention in the Australian context. To achieve this, it first examines the recent Australian surveillance data on stroke, identifying the at-risk groups. It then argues for targeted stroke prevention, assesses relevant policies and programs in the international and Australian contexts, and briefly reviews approaches for increased awareness and recognition of stroke symptoms. The article concludes by emphasising the need to account for the at-risk-groups when developing targeted health promotion campaigns for effective prevention of stroke in Australia.
Natural course of untreated microalbuminuria in children and adolescents with type 1 diabetes and the importance of diabetes duration and immigrant status: longitudinal analysis from the prospective nationwide German and Austrian diabetes survey DPV
Authors: Galler Angela , Haberland Holger , Näke Andrea , Hofer Sabine , Holder Martin , Raile Klemens , Holl Reinhard W , _ _
Published: December 2011

Objective

To identify risk factors for the development and progression of untreated persistent microalbuminuria in children and adolescents with type 1 diabetes.

Design and methods

A total number of 683 children and adolescents with type 1 diabetes recruited from the prospective nationwide German and Austrian diabetes survey (DPV) were included in the analysis. Inclusion criteria were onset of type 1 diabetes under the age of 11 years, diabetes duration of more than 1 year and continuous follow-up over 5 years with at least two documented urine analyses per year. Subjects treated with angiotensin-converting enzyme inhibitors were excluded. Risk factors such as sex, body mass index SDS, diabetes duration, HbA1c, total cholesterol, HDL-cholesterol, LDL-cholesterol, systolic and diastolic blood pressure, and immigrant status were analysed by logistic regression.

Results

At baseline (age 10.5±0.1 years, diabetes duration 4.6±2.4 years and HbA1c 7.4±1.1%), 75.6% of children had normoalbuminuria, 15.7% had intermittent microalbuminuria, 8.6% had persistent microalbuminuria and 0.1% had macroalbuminuria. After a follow-up of 5 years, 59.4% of adolescents continued to have normoalbuminuria, 18.4% had progression, 15.2% had regression of microalbuminuria, and in 6.9% of the subjects, microalbuminuria remained unchanged. We found significant associations between persistent microalbuminuria at baseline and during each year of follow-up (P<0.0001). Logistic regression analysis identified diabetes duration and immigrant status as significant factors for microalbuminuria (P=0.009 andP=0.009).

Conclusions

The survey in a real-world setting shows that diabetes duration and immigrant status are risk factors for the development and progression of untreated microalbuminuria in children and adolescents with type 1 diabetes.
PIT1 upregulation by HMGA proteins has a role in pituitary tumorigenesis
Authors: Palmieri Dario , Valentino Teresa , De Martino Ivana , Esposito Francesco , Cappabianca Paolo , Wierinckx Anne , Vitiello Michela , Lombardi Gaetano , Colao Annamaria , Trouillas Jacqueline , Pierantoni Giovanna Maria , Fusco Alfredo , Fedele Monica
Published: December 2011

We have previously demonstrated that HMGA1B and HMGA2 overexpression in mice induces the development of GH and prolactin (PRL) pituitary adenomas mainly by increasing E2F1 transcriptional activity. Interestingly, these adenomas showed very high expression levels of PIT1, a transcriptional factor that regulates the gene expression ofGh,Prl,GhrhrandPit1itself, playing a key role in pituitary gland development and physiology. Therefore, the aim of our study was to identify the role ofPit1overexpression in pituitary tumour development induced by HMGA1B and HMGA2. First, we demonstrated that HMGA1B and HMGA2 directly interact with both PIT1 and its gene promoterin vivo, and that these proteins positively regulatePit1promoter activity, also co-operating with PIT1 itself. Subsequently, we showed, by colony-forming assays on two different pituitary adenoma cell lines, GH3 and αT3, thatPit1overexpression increases pituitary cell proliferation. Finally, the expression analysis ofHMGA1,HMGA2andPIT1in human pituitary adenomas of different histological types revealed a direct correlation betweenPIT1and HMGA expression levels. Taken together, our data indicate a role ofPit1upregulation by HMGA proteins in pituitary tumours.
The complete control of murine pregnancy from embryo implantation to parturition
Authors: Terakawa Jumpei , Watanabe Takaho , Obara Rutsuko , Sugiyama Makoto , Inoue Naoko , Ohmori Yasushige , Hosaka Yoshinao Z , Hondo Eiichi
Published: December 2011

The ovary is the main secretory source of progestin and estrogen and is indispensable to the maintenance of all events of pregnancy in mice. The purpose of this study was to control all processes of pregnancy in mice, from embryo implantation to parturition, without ovaries. The ovaries were removed before embryo implantation, and a single injection of medroxyprogesterone acetate (MPA) was given. Embryo implantation was induced by leukemia inhibitory factor, which can substitute 17β-estradiol (E2). Continuous exposure to E2was necessary at mid-pregnancy, when placentation was completed. All mice sustained pregnancy without ovaries before parturition, which was initiated by the removal of E2and MPA. Murine pregnancy is a complicated process involving embryo implantation, placentation, and parturition. Complete control of pregnancy was achieved with the simple treatment of MPA and E2after induction of embryo implantation. Here, time-dependent events in the uterus during pregnancy could be realized without the ovaries, because the initiation of each event could be stringently controlled by hormonal treatments.
Bargaining Model for the International Oil Industry
Authors: Vivoda Vlado
Published: December 2011

This paper establishes a model for analyzing the dynamics of the host state-international oil company (IOC) bargaining relationship. Theoretically, the model advances our ability to investigate bargaining dynamics between host states, oil companies and other stakeholders in the oil industry. It is a sophisticated mechanism which identifies the complex array of relationships and bargains within which the host state-IOC bargaining relationship is nested. The model builds on and leverages the key contributions of earlier bargaining models. It enables us to integrate relevant ideas from existing scholarship on host state-MNC bargaining while also taking into account other actors and bargains at domestic and international levels that affect bargaining between an IOC and a host state. Practically, the model will help actors choose strategies more systematically, leading to higher relative bargaining power that may translate to preferable bargaining outcomes.
Ecological impact of Eurasian beaver (Castor fiber) activity on macroinvertebrate communities in Lithuanian trout streams
Authors: Pliūraitė Virginija , Kesminas Vytautas
Published: December 2011

Our study found that beaver activity affects macroinvertebrate assemblages of both beaver ponds and downstream sites. The percentage composition of the invertebrate faunae of beaver ponds was strikingly different from the invertebrate faunae of upstream forested and downstream sites. The number of EPT (ephemeropteran, plecopteran, trichopteran) taxa in the upstream forested sites in all streams was higher than in beaver pond and downstream sites. Statistically significant differences were found in absolute and relative abundances of EPT and Chironomidae between different streams sites. The absolute and relative abundance of pollution-sensitive EPT was significantly higher in forested sites than in beaver pond and downstream sites in all measured streams. Beaver ponds had a significantly higher absolute and relative abundance of Chironomidae compared with upstream forested and downstream sites. We found that Plecoptera and Coleoptera were absent from beaver pond sites. The absolute abundance of Plecoptera was significantly higher in upstream forested sites than in downstream sites in all three streams. Gatherers were the dominant functional feeding group in relative abundance in all three habitat types. The percentage of gatherers was higher in beaver ponds than in forested and downstream sites.
Effectiveness of the entomopathogenic nematode Steinernema feltiae in agar gel formulations against larvae of the Colarado potato beetle, Leptinotarsa decemlineata (Say.) (Coleoptera: Chrysomelidae)
Authors: Hussein Hany , Adel Manal , Gelbič Ivan
Published: December 2011

The entomopathogenic nematode Steinernema feltiae strain Ustinov Russia was used on potato foliage to control larvae of the Colorado potato beetle, Leptinotarsa decemlineata (Say.) (Coleoptera: Chrysomelidae). Nematodes were applied in formulations of agar at 4%, 2%, 1% and 0.5% concentrations and compared to a control application of nematodes in water for nematode survival. Agar formulation significantly improved efficacy by increasing nematode survival through reduction in desiccation when compared to water-based formulation. More than 70% of infective juvenile nematodes (IJs) died after being incubated in the highest concentration of agar for 12 h, while only 8% mortality was recorded at the 1% concentration. Suspension of nematodes in 1% agar gel was shown to be efficacious in both laboratory and greenhouse tests for extension of the nematodes’ survival. Agar formulation droplets dried slower than control droplets by 127.8 min. Leptinotarsa decemlineata mortality significantly increased when insects were exposed to infective juvenile nematodes for four hours after application. In conclusion, the agar formulation enhanced nematode survival by providing a suitable environment thereby delaying dryingand increasing the possibility for nematodes to invade their host on the foliage.
Optimization and use of a spectrophotometric method for determining polysaccharides in Echinacea purpurea
Authors: Glavač Nina , Košir Iztok , Rode Janko , Kreft Samo
Published: December 2011

Echinacea purpurea is one of the most widely used immunostimulant plants. Its main active compounds are polysaccharides, glycoproteins, caffeic acid derivatives, alkamides, and melanins. The article describes an optimized extraction procedure that enables spectrophotometric quantification of polysaccharides from Echinacea purpurea. The extraction procedure can be widely applied as it demonstrated to be useful for determining polysaccharide content in flowers and leaves, in summer and autumn plants, in plants with green and red stem, and in plants from two different plantations. A significantly higher content of polysaccharides in flowers in comparison to leaves, as well as in plants with green stems in comparison to plants with red stems was determined. Statistical differences were absent in plants collected in different seasons and growing at different plantations.
Effect of Cordyceps sinensis on TIMP-1 secretion from mouse melanoma cell
Authors: Kubo Erika , Sato Ayuko , Yoshikawa Noriko , Kagota Satomi , Shinozuka Kazumasa , Nakamura Kazuki
Published: December 2011

Cordyceps sinensis is a Chinese medicinal fungus traditionally used in cancer treatments. In a previous study, we investigated the antimetastatic activity of Cordyceps sinensis (WECS) extract using liver metastatic model mice injected with B16-F0 mouse melanoma cells into the spleen. WECS reduced the number of metastatic nodules of B16-F0 cells in the liver of C57BL/6 mice, and significantly prolonged survival of the mice. Furthermore, we examined the effects of WECS on hepatocyte growth factor (HGF)-accelerated invasion of B16-F0 cells using a chemo-invasion assay in vitro. WECS was shown to significantly reduce HGF-accelerated B16-F0 cell invasion. In the present study, we investigated the effect of WECS on Tissue Inhibitor of Metalloproteinase (TIMP)-1 secretion from B16-F0 cells in order to identify clues to the mechanism underlying the anti-invasive action of WECS. As a result, WECS significantly increased the secretion of TIMP-1 from B16-F0 cells. Moreover, we investigated the effect of cordycepin (3′-deoxyadenosine), a component of WECS, on TIMP-1 secretion from B16-F0 cells to potentially identify the pharmacologically active ingredient in WECS extract. Cordycepin was shown to significantly accelerate the release of TIMP-1 from cells. These findings suggest that WECS exerts anti-invasive activity, in part by increasing TIMP-1 secretion from melanoma cells, and that cordycepin potentially functions as the effective component.
Molecular barcoding for central-eastern European Crioceris leaf-beetles (Coleoptera: Chrysomelidae)
Authors: Kubisz Daniel , Kajtoch Łukasz , Mazur Miłosz , Rizun Volodymyr
Published: December 2011

Among Crioceris leaf-beetles, the two most widespread species (Crioceris asparagi and C. duodecimpunctata) are serious invasive plant pests, while another two (C. quatuordecimpunctata and C. quinquepunctata) are rare species restricted to steppe-like habitats in Eurasia. The aim of the research was to check the genetic distinctiveness of these four species and develop barcodes for their molecular identification using the mitochondrial Cytochrome Oxidase I (COI) gene and two nuclear markers: Elongation Factor 1-α (EF1-α) and Internal Transcribed Spacer 1 (ITS1). The identification of each species was possible and reliable with the use of COI and ITS1 markers. EF1-α was omitted in analyses due to its high level of heterozygosity (presence of multiple PCR products). C. duodecimpunctata and C. quatuordecimpunctata were shown to be sister taxa, but the similar genetic distances between all of the species indicate that these species originated almost simultaneously from a common ancestor. Identification of two separate clades in populations of C. quatuordecimpunctata suggested that the clades are isolated and can be considered as separate conservation units.
Atrazine-induced degranulation of thyroid mast cells in peripubertal and adult rats
Authors: Rajkovic Vesna , Kovac Renata , Koledin Ivana , Matavulj Milica
Published: December 2011

Atrazine is a commonly used pesticide in the US and the non-EU countries. It is classified as an endocrine-disrupting chemical and is well-known for its reproductive toxicity in mammals and lower vertebrates. The study on atrazine effects on thyroid mast cells was performed on juvenile/peripubertal and adult male Wistar rats orally gavaged with atrazine at doses of 50 mg/kg of body weight (bw) or 200 mg/kg bw. In order to visualize the mast cell population within the thyroid gland, a histochemical staining method of toluidine blue was used. The results of the histological evaluation demonstrated a prominent increase in mast cell degranulation in both age groups and at both atrazine doses. According to the stereological analysis, a statistically significant decrease in the mast cell volume density in the young rats exposed to a higher dose of atrazine was found when compared to the corresponding control. The numerical density of mast cells significantly decreased in a higher-dose atrazine treated adults in comparison to the control. The obtained data suggest that atrazine-affected mast cells would probably have a consequent influence on thyroid follicular cells and/or thyroid microvasculature via paracrine action of released mediators, but might also be involved in already suggested thyroid cancerogenesis.
Changes in migration phenology and biometrical traits of Reed, Marsh and Sedge Warblers
Authors: Kovács Szilvia , Fehérvári Péter , Nagy Krisztina , Harnos Andrea , Csörgő Tibor
Published: December 2011

Global environmental processes like climate change could severely affect population level migratory behaviour of long range migrant birds. We analyzed changes in migration phenology and biometrics of three closely-related long-distance migrant Acrocephalus species. We used the records of 12 063 Sedge, 12 913 Reed, and 5 409 Marsh Warblers caught and ringed between 1989–2009, at a Hungarian stopover site. Quantile regressions were used to analyse the changes in spring and autumn migration phenology. Median spring arrival date of Sedge and Reed Warblers shifted 6.5 and 7.5 days earlier, respectively. Autumn arrival of all species shifted one (Reed and Marsh Warblers) or two (Sedge Warbler) weeks later. Mean body mass of adult Reed and Marsh Warblers decreased in spring (by 0.3 and 0.2 grams, respectively) and in autumn (by 0.8 and 0.2 grams, respectively) while body mass of adult Sedge Warblers decreased only in autumn (by 0.4 grams). Mean wing length of all species increased significantly (range of change: 0.6–1 mm). Despite the fact that the studied species are closely related, all three have remarkably different migration strategies. However, similar patterns can be observed in the studied parameters, indicating that global processes may have general effects on these species, albeit through markedly different mechanisms.
Cholic acid changes defense response to oxidative stress in soybean induced by Aspergillus niger
Authors: Malenčić Djordje , Kevrešan Slavko , Popović Milan , Štajner Dubravka , Popović Boris , Kiprovski Biljana , Djurić Simonida
Published: December 2011

The oxidative stress and antioxidant systems in soybean leaves and roots infected with plant pathogen Aspergillus niger were studied following treatment with different concentrations of cholic acid. Several oxidative stress parameters were analyzed: production of superoxide (O2
·−) and hydroxyl radicals (·OH), lipid peroxidation (LP), and superoxide dismutase (SOD; EC 1.15.1.1) activity, as well as the content of reduced glutathione (GSH). Results showed that inoculation with A. niger led to the increase of O2
·− production and GSH quantities in leaves and ·OH in roots. The highest activity of SOD occured in infected plants treated with cholic acid in concentrations of 40 and 60 mg L−1 which ultimately led to a decrease in O2
·− production. Inoculation with Aspergillus in combination with elevated cholic acid concentrations also increased ·OH production which is correlated with increased LP. These results may support the idea of using cholic acid as an elicitor to trigger hypersensitive response in plant cells. Use of cholic acid may also actively contribute to soybean plants defense response against pathogen attack.
Biological activity and composition of teas and tinctures prepared from Rosa rugosa Thunb.
Authors: Olech Marta , Nowak Renata , Los Renata , Rzymowska Jolanta , Malm Anna , Chrusciel Katarzyna
Published: December 2011

The study was designed to determine the total phenolic, flavonoid, o-dihydroxyphenol, tannin, and carotenoid content as well as the antiradical, antitumor and antimicrobial properties of two types of galenic preparations from Rosa rugosa Thunb. Such extracts obtained from various plant parts have not been studied to date. Our findings have revealed high antiradical activity of the examined galenic preparations, with root, leaf and flower extracts (IC50 ranging from 0.27 to 0.19 mg of dry extract per mg DPPH·) showing the greatest potential. MIC and MBC values against 8 reference bacterial strains (i.e. Staphylococcus epidermidis, Staphylococcus aureus, Bacillus
subtilis, Micrococcus luteus, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Proteus mirabilis) were determined. Generally, tinctures were found to be more active than teas with MIC ranging from 0.08 to 2.5 mg mL−1 and 0.31 to 1.25 mg mL−1, respectively. Anticancer activities against ovarian (TOV-112D), cervical (HeLa), breast (T47D) and lung cancer (A549) cell lines were evaluated using the BrdU test. The data obtained demonstrate considerable impact of polyphenols on the anticancer activity of extracts (ethanolic, in particular).
Polypyrrole coating of inorganic and organic materials by chemical oxidative polymerisation
Authors: Omastová Mária , Mičušík Matej
Published: December 2011

Polypyrrole is one of the most frequently studied conducting polymers, having high electrical conductivity and stability, suitable for multi-functionalised applications. Coatings of chemically synthesised polypyrrole applied onto various organic and inorganic materials, such as polymer particles and films, nanoparticles of metal oxides, clay minerals, and carbon nanotubes are reviewed in this paper. Its primary subject is the formation of new materials and their application in which chemical oxidative polymerisation of pyrrole was used. These combined materials are used in antistatic applications, such as anti-corrosion coating, radiation-shielding, but also as new categories of sensors, batteries, and components for organic electronics are created by coating substrates with conducting polymer layers or imprinting technologies.
Speciation of heavy metals in sewage sludge after mesophilic and thermophilic anaerobic digestion
Authors: Dąbrowska Lidia
Published: December 2011

Two types of sewage sludge anaerobic digestion were carried out: mesophilic and thermophilic. Metal speciation analysis was performed revealing some changes in the chemical form of the metals during the stabilization process of sludge. After both methane fermentation processes, a comparable level of organic matter distribution was obtained (≈ 40 %). The amount of produced methane during thermophilic and mesophilic digestion was 560 mL of CH4 and 580 mL of CH4 from 1 g of removed organic matter, respectively. Low concentration of heavy metal ions in the liquid phase of sludge was observed. Metal ions precipitated and remained bound throughout the stabilization process. No accumulation of heavy metals in the mobile fractions of sludge (exchangeable and carbonate) was observed for either digestion process. The highest increase of zinc, copper, nickel, cadmium, and chromium concentration was observed in the organic-sulfide fraction, whereas the highest increase of lead was found in the residual fraction.
Democratic values in the aesthetics of classic American pragmatism
Authors: Skowroński Krzysztof
Published: December 2011

In the present paper an interpretation of the political dimension of pragmatic aesthetic reflection is proposed. The interconnection between politics and aesthetics in three classic American pragmatists: William James (1842–1910), John Dewey (1859–1952), and George Herbert Mead (1863–1931) is evoked. The author claims that by emphasizing the role of democratic values in philosophy and life, the classic American pragmatists encroach upon the field of the arts and aesthetics. Their emphasis put upon individual activity, free expression of thoughts, plurality of the forms of expression, and acceptance of criticism as a tool helping create better solutions in human cooperation can easily be converted into the postulates about the character of the artistic principles and of the nature of the aesthetic norms and values.
Art for the Soviet home
Authors: Reid Susan
Published: December 2011

As an intensive housing construction drive in the late 1950s began to provide separate apartments for millions of Soviet citizens, aesthetic experts envisioned the Soviet home as a potential site for the display of works of art and for amateur aesthetic production. In the context of de-Stalinization, reformist artists and aestheticians committed to the liberalization and modernization of Soviet artistic criteria, promoted the value of amateur art and even of home decorating in the formation of the new person who would live under communism. They also pressed for affordable art and craft to be made available to ordinary people for their new homes. Thereby they would dwell in their new apartments surrounded by beauty in their everyday lives, and would thus, the experts argued, be brought closer to communist consciousness. Moreover sales of art to individual citizens would provide an alternative income stream to fund artists’ production. The possibility of private art consumption would therefore free artists to some extent from their reliance on state commissions and from the strict stylistic and thematic norms and hierarchies of Socialist Realism as established under Stalin.
Performing arts—influencing change
Authors: Čiripová Dáša
Published: December 2011

In the present political and socio-cultural situation in Slovakia, it is natural and necessary even to ask “what position do the arts occupy in this country?” and “what role do they play within the complex global atmosphere?” Art and culture should mirror the nation. Are we aware of that? Do we realize that art has the ability and the power to move? Not many of us realize this. This is a consequence of the permanent scepticism, apathy and resentment caused by the fact that this voice has never been heard. And this is not just the case in Slovakia. Yet even today there are certain groups of artists who still believe in the arts and their power. I think that giving up on this faith is the easiest thing to do. The decision whether to fight, rebel or actively participate is extremely complex and in many cases doing so may even threaten the freedom of the person. In this article I address the issue of whether art has the power and ability to change things. I draw attention to those socially engaging activities that could be described as performance art, which occur beyond enclosed areas and in public spaces; and in order to achieve change, they openly and nakedly attack individual consciousness and the subconscious.