bluuebunny/crossref_metadata_2025 huggingface dataset:
Dragacevo trumpet festival in Guca: A place of networking music cultures
Authors: Lajic-Mihajlovic Danka , Zakic Mirjana
Published: September 2012

A traditional event Dragacevo trumpet festival, which is being held since
1961 in Guca (a small town in Western Serbia), represents the most visited
cultural manifestation in Serbia. A growing popularity of the Festival
(according to the organizer?s statistics, a number of visitors at the last
few festivals was around 800 000) has to do with, among other things, its
programme conception whose evolution reflects changes in cultural policies of
the organizer. The analysis of a diachronic dimension of the Festival in this
paper is aimed at marking main points in several decades of the Festival?s
development which contributed to re-positioning and affirmation of brass
bands practice in Serbia. The local event evolved into a manifestation of
intercultural profile not only by the structure of the audience, but also by
the music presented there. Nowadays, the concept is recognized practically in
all events of this convocation festival: in competition programmes - at
national and, recently introduced, international level, and especially at
revue performances of brass bands with free programmes. In specific
situations at the Festival, different trumpet practices are manifested
predominantly as the products of intercultural relations, implied in this
paper as an active coexistence of cultures. A way and a degree of interaction
between cultures result in the contents in which ?cultures in a dialogue? can
be clearly identified, but also in the hybrids with transcultural
characteristics. The exact interactive processes present a paradigmatic value
of the whole Dragacevo trumpet festival in Guca - as a meeting point of
(music) cultures of the world.
Vojvodina - a region based on the Serbian ethnicity and its denial
Authors: Njegovan Drago
Published: September 2012

The issue of regionalism and the autonomy of certain areas is mainly related
to the ethnic composition of the population. The idea of the autonomy of
Vojvodina as a Serbian region in the Habsburg Monarchy was created back in
1690. It came into being 150 years later by the decision of the 1848 May
Assembly. In a significantly different form, it lasted ten years as the
Serbian Voivodship and Temisvar (Timisoara) Banat. In the next fifty years, a
autonomous Serbian Vojvodina was just a dream. At the end of World War I the
areas of Vojvodina, on the basis of the right to self-determination, entered
the Kingdom of Serbia and thus became part of the Kingdom of Serbs, Croats
and Slovenes, i.e. Yugoslavia. The idea of the autonomy of Vojvodina was then
discarded. Some liberal politicians, supported by the Croats, tried to
restore it in the interwar period but this option did not receive any support
of voters at the elections. The illegal Communist Party politically promoted
the idea of the autonomy of Vojvodina in a federalized Yugoslavia, which was
achieved during World War II. At the end of the war, the autonomous Vojvodina
remained part of Serbia, and according to the 1974 Constitution, it became a
part of federal Yugoslavia. During the disintegration of Yugoslavia, the
autonomy of Vojvodina within Serbia was preserved but recently, after the
so-called democratic changes of 2000, domestic and foreign (EU and NATO)
political engagement in Serbia has been more directed towards the greater
autonomy of Vojvodina, and even its separation from Serbia, despite the
two-thirds Serbian majority living in the Province.
Loyset Compère and His Recently Rediscovered Missa De tous biens plaine
Authors: Steib Murray
Published: September 2012

In memoriam Howard Mayer Brown
Online Accounting Education versus In-Class Delivery: Does Course Level Matter?
Authors: Chen Clement C. , Jones Keith T. , Moreland Keith A.
Published: September 2012

This study examines whether the effectiveness of online accounting education relative to traditional in-class delivery depends upon the level of the course. Students enrolled in principles and advanced cost/managerial and in advanced financial accounting courses were surveyed regarding their perceptions on several dimensions. The results suggest that the course level is important when assessing whether it is advisable to offer online accounting courses. In advanced courses, the outcomes examined were significantly more favorable for traditional classroom environments than for online, while the delivery mode was not important in principles courses when controlling for other variables. The results also provide further support for the notion that blended learning, i.e., offering a few on-campus class meetings for a predominately online course, may be desirable regardless of course level, but that course level is potentially important when deciding upon the mix of face-to-face versus online instruction.

Data Availability: Available upon request.
Modification of Non-Metallic Inclusions by Rare-Earth Elements in Microalloyed Steels
Authors: Opiela M. , Grajcar A.
Published: September 2012

Modification of Non-Metallic Inclusions by Rare-Earth Elements in Microalloyed Steels

The modification of the chemical composition of non-metallic inclusions by rare-earth elements in the new-developed microalloyed steels was discussed in the paper. The investigated steels are assigned to production of forged elements by thermo-mechanical treatment. The steels were melted in a vaccum induction furnace and modification of non-metallic inclusions was carried out by the michmetal in the amount of 2.0 g per 1 kg of steel. It was found that using material charge of high purity and a realization of metallurgical process in vacuous conditions result in a low concentration of sulfur (0.004%), phosphorus (from 0.006 to 0.008%) and oxygen (6 ppm). The high metallurgical purity is confirmed by a small fraction of non-metallic inclusions averaging 0.075%. A large majority of non-metallic inclusions are fine, globular oxide-sulfide or sulfide particles with a mean size 17 μm2. The chemical composition and morphology of non-metallic inclusions was modified by Ce, La and Nd, what results a small deformability of non-metallic inclusions during hot-working.
Intermanual Transfer in Training With an Upper-Limb Myoelectric Prosthesis Simulator: A Mechanistic, Randomized, Pretest-Posttest Study
Authors: Romkema Sietske , Bongers Raoul M. , van der Sluis Corry K.
Published: September 2012

Background

Intermanual transfer may improve prosthetic handling and acceptance if used in training soon after an amputation.

Objective

The purpose of this study was to determine whether intermanual transfer effects can be detected after training with a myoelectric upper-limb prosthesis simulator.

Design

A mechanistic, randomized, pretest-posttest design was used.

Participants

A total of 48 right-handed participants (25 women, 23 men) who were able-bodied were randomly assigned to an experimental group or a control group.

Intervention

The experimental group performed a training program of 5 days' duration using the prosthesis simulator. To determine the improvement in skill, a test was administered before, immediately after, and 6 days after training. The control group only performed the tests. Training was performed with the unaffected arm, and tests were performed with the affected arm (the affected arm simulating an amputated limb). Half of the participants were tested with the dominant arm and half with the nondominant arm.

Measurements

Initiation time was defined as the time from starting signal until start of the movement, movement time was defined as the time from the beginning of the movement until completion of the task, and force control was defined as the maximal applied force on a deformable object.

Results

The movement time decreased significantly more in the experimental group (F2,92=7.42, P=.001, ηG2=.028) when compared with the control group. This finding is indicative of faster handling of the prosthesis. No statistically significant differences were found between groups with regard to initiation time and force control. We did not find a difference in intermanual transfer between the dominant and nondominant arms.

Limitations

The training utilized participants who were able-bodied in a laboratory setting and focused only on transradial amputations.

Conclusions

Intermanual transfer was present in the affected arm after training the unaffected arm with a myoelectric prosthesis simulator, and this effect did not depend on laterality. This effect may improve rehabilitation of patients with an upper-limb amputation.
Prevalence of antibodies against leptospires in small mammals in relation to age, sex and season
Authors: Treml František , Nepeřený Jiří , Jánová Eva , Banďouchová Hana , Pikula Jiří
Published: September 2012

A total of 2,195 small mammals belonging to 8 species were captured in different districts of South Moravia, Czech Republic, and examined for antibodies against leptospires in the period from 2004 to 2008. Positive specimens amounting to 173 (9%) were found annually in five species of rodents such as Apodemus sp., Clethrionomys glareolus, Microtus arvalis, Mus musculus and Rattus norvegicus. The recognised leptospiral serotypes included L. grippotyphosa, L. bulgarica, L. sejroe and L. icterohaemorrhagiae/copenhageni. The highest prevalence of antibodies was against the L. grippotyphosa serotype (92.8%). Reactions with other serotypes of leptospires were exceptional. Reactions with L. bulgarica antigen were only due to coagglutination with L. grippotyphosa leptospires. The titres ranged from 100 to 12,800. However, lower values up to the titre of 800 predominated in 151 cases (83.4%). There were non-significant sex differences in seroprevalence with 8.1% and 7.6% prevalence in males and females, respectively. Marked differences were, however, found in seroprevalence of juveniles and adults with 3.3% and 10.2%, respectively. Adult males and females were seropositive in 10.9% and 9.5%, respectively; juveniles were seropositive only in 3.0% and 3.7%. The highest percentage of specimens (43.6%) was examined during July and August. The summer seroprevalence of 10.9% was higher than in spring and autumn. Our results revealed the persistence of both natural and synanthropic nidi of leptospirosis in the region under study and demonstrated epidemiological implications regarding health protection of animals and humans.
Passive and active immunity of broiler chickens against Campylobacter jejuni and ways of disease transmission
Authors: Ondrašovičová Silvia , Pipová Monika , Dvořák Petr , Hričínová Monika , Hromada Rudolf , Kremeň Jozef
Published: September 2012

The study deals with passive and active immunity of fifty-three broiler chickens after infection with culture of Campylobacter jejuni. Potential transfer of infection by faecal-oral and aerogenic routes was also investigated. Cloacal swabs and ceacal content were analyzed microbiologically. Identification of C. jejuni was carried out by polymerase chain reaction. Observation of passive immunity of broilers from 3 days of age showed that no transfer of C. jejuni infection occurred up to 12 day post-infection (p.i.). Observations of active immunity in fourteen 21 days old chickens infected with C. jejuni showed that 6 chickens were positive on day 3 p.i. and all infected chickens were positive on day 5 p.i. Investigations of the transfer of C. jejuni by faecal-oral route revealed positivity in two broilers on day 3 p.i. and in all tested chickens on day 5 p.i. Aerogenic transfer of infection was not recorded. This was one of the first studies in our country dealing with passive and active immunity of broiler chickens against C. jejuni and spreading of this zoonotic disease.
A surface plasmon resonance biosensor for direct detection of the rabies virus
Authors: Xu Jing , Wan Jia-yu , Yang Song-tao , Zhang Shou-feng , Xu Na , Li Nan , Li Ji-ping , Wang Hai-ying , Bai Xue , Liu Wen-sen
Published: September 2012

A surface plasmon resonance biosensor chip was constructed for detection of rabies virus. For the construction of the biosensor chip, N protein specific antibody and N protein specific antibody combined with G protein specific antibody of rabies virus were linked on two different flow cells on one CM5 chip, respectively. The chip was tested for the detection of rabies virus antigens using the crude extract of rabies virus from infected BHK cell strain culture. Tenfold serial dilutions of SRV9 strain virus-infected cell cultures were tested by the biosensor chip to establish the detection limit. The limit detection was approximately 70 pg/ml of nucleoprotein and glycoprotein. The biosensor chip developed in this study was employed for the detection of rabies virus in five suspect infectious specimens of brain tissue from guinea pigs; the results were compared by fluorescent antibody test. Surface plasmon resonance biosensor chip could be a useful automatic tool for prompt detection of rabies virus infection.
The effect of different macromineral intakes on mineral metabolism of sport horses
Authors: Gálik Branislav , Bíro Daniel , Halo Marko , Juráček Miroslav , Šimko Milan , Massányi Peter , Rolinec Michal
Published: September 2012

The aim of the study was to analyze the effect of different intakes of macroelements from feed on the mineral blood profile of sport horses. In the experiment which lasted for 12 months (6 months for each of the two periods), 14 sport horses with 2 types of feed rations were monitored. The blood was collected at the beginning of the experiment and every 2 months (three blood collections for each period). Feed rations had a negative effect on Ca (3.40 mmol·l-1 and 3.32 mmol·l-1) and K (3.2 mmol·l-1 and 2.98 mmol·l-1) concentrations in equine serum obtained from the second and third blood collection, respectively. Concentration of P (1.28 mmol·l-1 and 1.20 mmol·l-1) in equine serum obtained from the second and third blood collection, respectively, was higher (P < 0.05) compared to the first blood collection. Concentrations of Mg and Na were in reference intervals. In the 2nd period of experiment, feed rations were adjusted based on individual requirements of the monitored horses; the proportion of the mineral ingredient in the feed rations was lowered. More balanced concentrations of Ca, Mg, Na and K were detected in equine blood serum as a result of lower intake of the minerals from feed; the concentration of P was, except for one case, higher than in the 1st period. We observed a positive effect of individual ration compositions based on the results of blood mineral profile. The study describes for the first time the effect of a high and adequate long-term intake of macroelements on their concentrations in sport horses’ blood serum.
The assessment of melamine and cyanuric acid residues in eggs from laying hens exposed to contaminated feed
Authors: Novák Pavel , Suchý Pavel , Straková Eva , Vlčáková Miriam , Germuška Robert
Published: September 2012

The aim of this study was to monitor the carry-over of melamine and its metabolite cyanuric acid from melamine-contaminated feed administered to layers into eggs. Ten experimental Isa Brown layers (36 week of age) were fed melamine-contaminated feed containing 100 mg of melamine per kg of feed. The duration of the experiment was 6 weeks. Eggs were collected during whole experiment. Analysis of eggs was done by a simple extraction of melamine and cyanuric acid residues, using a water-acetonitrile mixture and analysed by gas chromatography - triple quadrupole mass spectrometry. Melamine and cyanuric acid residues were detected in all eggs collected from the experimental layers, immediately after the first administration of melamine-contaminated feed. The mean concentrations of melamine in the egg yolk and egg white recalculated on a dry matter basis were 1.90 mg·kg-1 ± 0.158 and 10.84 mg·kg-1 ± 3.951 (P ≤ 0.01); the cyanuric acid contents were 6.54 mg·kg-1 ± 0.2.466 and 4.07 mg·kg-1 ± 0.909, respectively. Melamine and cyanuric acid were not detected in eggs from control layers. Concentrations of melamine and cyanuric acid in eggs decreased quickly after melamine feeding was stopped. Our results indicate that melamine undergoes biotransformation to cyanuric acid in the layer’s body that also passed into the eggs. The results verified the presence of distribution metabolic pathway of melamine and its easiest transfer into egg yolk. Moreover, the biotransformation of melamine into cyanuric acid in eggs of layers was confirmed.
Cytotoxic activity of the neurotoxin anatoxin-a on fish leukocytes in vitro and in vivo studies
Authors: Rymuszka Anna
Published: September 2012

The aim of this study was to investigate the potential cytotoxic effects of different concentrations (0.01, 0.025, 0.05, 0.1 and 1 µg/ml medium) of pure anatoxin-a on carp immune cells (in vitro study). Furthermore, changes in the cell immune functions isolated from 10 carp exposed by immersion to anatoxin-a (25 µg/l) for 5 days have been examined. Cytotoxicity of the toxin to leukocytes was determined by measuring intracellular adenosine triphosphate and glutathione concentrations. Lymphocyte proliferation was determined by measurement of bromodeoxyuridine incorporation during DNA synthesis. The phagocytes were assayed for intracellular production of reactive oxygen species. The in vitro results showed that pure toxin induced adverse effects on immune cells only after application of the higher concentrations (0.05, 0.1 and 1 µg/ml). Phagocytes exposed to anatoxin-a exhibited a significant (P < 0.05) reduction in glutathione concentration. The lymphocyte proliferation was decreased by the toxin, and B cells were more sensitive than T cells. The present study showed for the first time that anatoxin-a administered to fish by immersion, had suppressive effects on lymphocyte proliferation and the antioxidant potential of phagocytes.
Mathematical model of mechanical testing of bone-implant (4.5 mm LCP) construct
Authors: Urbanová Lucie , Blažek-Fialová Iva , Srnec Robert , Pěnčík Jan , Kršek Přemysl , Nečas Alois
Published: September 2012

The study deals with the possibility of substituting time- and material-demanding mechanical testing of a bone defect fixation by mathematical modelling. Based on the mechanical model, a mathematical model of bone-implant construct stabilizing experimental segmental femoral bone defect (segmental ostectomy) in a miniature pig ex vivo model using 4.5 mm titanium LCP was created. It was subsequently computer-loaded by forces acting parallel to the long axis of the construct. By the effect of the acting forces the displacement vector sum of individual construct points occurred. The greatest displacement was noted in the end segments of the bone in close proximity to ostectomy and in the area of the empty central plate hole (without screw) at the level of the segmental bone defect. By studying the equivalent von Mises stress σEQV on LCP as part of the tested construct we found that the greatest changes of stress occur in the place of the empty central plate hole. The distribution of this strain was relatively symmetrical along both sides of the hole. The exceeding of the yield stress value and irreversible plastic deformations in this segment of LCP occurred at the acting of the force of 360 N. These findings are in line with the character of damage of the same construct loaded during its mechanic testing. We succeeded in creating a mathematical model of the bone-implant construct which may be further used for computer modelling of real loading of similar constructs chosen for fixation of bone defects in both experimental and clinical practice.
Cosmopolitans, Slaves, and the Global Market in Voltaire’s Candide, ou l’optimisme
Authors: Kjørholt Ingvild Hagen
Published: September 2012

The cosmopolitan and the slave are the offspring of a global world governed by exchangeability and transportability. In Voltaire’s most famous work, Candide, ou l’optimisme (1759), these two juxtaposed characters represent radically different results of globalization. A historical reading that explores the context of colonialism, war, and the increasing world trade of the eighteenth century reveals how migration defines the identities of the cosmopolitan and the slave, and the ways in which both characters challenge a traditional notion of belonging. While the cosmopolitan moves freely, the slave is unfree and only moved by others. Focusing on Candide’s encounter with a Negro slave in Surinam, I discuss how the tale deals with the legal and philosophical problems raised by the transatlantic slave trade, and question why Voltaire treats North African slavery differently. Following from these discussions, I examine the attitude towards European colonialism shown by Voltaire’s cosmopolitans, arguing that these characters reject the global market on the basis of an ethics of human rights.
Efficacy of vagus nerve stimulation in posttraumatic versus nontraumatic epilepsy
Authors: Englot Dario J. , Rolston John D. , Wang Doris D. , Hassnain Kevin H. , Gordon Charles M. , Chang Edward F.
Published: September 2012

Object

In the US, approximately 500,000 individuals are hospitalized yearly for traumatic brain injury (TBI), and posttraumatic epilepsy (PTE) is a common sequela of TBI. Improved treatment strategies for PTE are critically needed, as patients with the disorder are often resistant to antiepileptic medications and are poor candidates for definitive resection. Vagus nerve stimulation (VNS) is an adjunctive treatment for medically refractory epilepsy that results in a ≥ 50% reduction in seizure frequency in approximately 50% of patients after 1 year of therapy. The role of VNS in PTE has been poorly studied. The aim of this study was to determine whether patients with PTE attain more favorable seizure outcomes than individuals with nontraumatic epilepsy etiologies.

Methods

Using a case-control study design, the authors retrospectively compared seizure outcomes after VNS therapy in patients with PTE versus those with nontraumatic epilepsy (non-PTE) who were part of a large prospectively collected patient registry.

Results

After VNS therapy, patients with PTE demonstrated a greater reduction in seizure frequency (50% fewer seizures at the 3-month follow-up; 73% fewer seizures at 24 months) than patients with non-PTE (46% fewer seizures at 3 months; 57% fewer seizures at 24 months). Overall, patients with PTE had a 78% rate of clinical response to VNS therapy at 24 months (that is, ≥ 50% reduction in seizure frequency) as compared with a 61% response rate among patients with non-PTE (OR 1.32, 95% CI 1.07–1.61), leading to improved outcomes according to the Engel classification (p < 0.0001, Cochran-Mantel-Haenszel statistic).

Conclusions

Vagus nerve stimulation should be considered in patients with medically refractory PTE who are not good candidates for resection. A controlled prospective trial is necessary to further examine seizure outcomes as well as neuropsychological outcomes after VNS therapy in patients with intractable PTE.
Extent of resection in patients with glioblastoma: limiting factors, perception of resectability, and effect on survival
Authors: Orringer Daniel , Lau Darryl , Khatri Sameer , Zamora-Berridi Grettel J. , Zhang Kathy , Wu Chris , Chaudhary Neeraj , Sagher Oren
Published: September 2012

Object

The extent of resection (EOR) is a known prognostic factor in patients with glioblastoma. However, gross-total resection (GTR) is not always achieved. Understanding the factors that prevent GTR is helpful in surgical planning and when counseling patients. The goal of this study was to identify demographic, tumor-related, and technical factors that influence EOR and to define the relationship between the surgeon's impression of EOR and radiographically determined EOR.

Methods

The authors performed a retrospective review of the electronic medical records to identify all patients who underwent craniotomy for glioblastoma resection between 2006 and 2009 and who had both preoperative and postoperative MRI studies. Forty-six patients were identified and were included in the study. Image analysis software (FIJI) was used to perform volumetric analysis of tumor size and EOR based on preoperative and postoperative MRI. Using multivariate analysis, the authors assessed factors associated with EOR and residual tumor volume. Perception of resectability was described using bivariate statistics, and survival was described using the log-rank test and Kaplan-Meier curves.

Results

The EOR was less for tumors in eloquent areas (p = 0.014) and those touching ventricles (p = 0.031). Left parietal tumors had significantly greater residual volume (p = 0.042). The average EOR was 91.0% in this series. There was MRI-demonstrable residual tumor in 69.6% of cases (16 of 23) in which GTR was perceived by the surgeon. Expert reviewers agreed that GTR could be safely achieved in 37.0% of patients (17 of 46) in this series. Among patients with safely resectable tumors, radiographically complete resection was achieved in 23.5% of patients (4 of 17). An EOR greater than 90% was associated with a significantly greater 1-year survival (76.5%) than an EOR less than 90% (p = 0.005).

Conclusions

The authors' findings confirm that tumor location affects EOR and suggest that EOR may also be influenced by the surgeon's ability to judge the presence of residual tumor during surgery. The surgeon's ability to judge completeness of resection during surgery is commonly inaccurate. The authors' study confirms the impact of EOR on 1-year survival.
Epidemiology of traumatic spinal fractures: experience from medical university–affiliated hospitals in Chongqing, China, 2001–2010
Authors: Wang Hongwei , Zhang Yuan , Xiang Qiang , Wang Xuke , Li Changqing , Xiong Hongyan , Zhou Yue
Published: September 2012

Object

The main objective of this study was to analyze the epidemiological data obtained from patients with traumatic spinal fracture at 2 university-affiliated hospitals in Chongqing, China.

Methods

The authors retrospectively reviewed the hospital records of all patients who suffered traumatic spinal fracture and were treated at Xinqiao Hospital and Southwest Hospital (both affiliated with The Third Military Medical University) between January 2001 and December 2010. The demographic characteristics, injury characteristics, and clinical outcomes of patients over this 10-year period were compared.

Results

A total of 3142 patients (mean age 45.7 years, range 1–92 years) with traumatic spinal fractures were identified; 65.5% of the patients were male. The peak frequency of these injuries occurred in the 31- to 40-year-old age group. Accidental falls and traffic accidents were the most common causes of spinal fractures (58.9% and 20.9%, respectively). Traffic accidents tended to occur in younger patients, whereas accidental falls tended to occur in older patients. The most common area of fracture was the thoracolumbar spine (54.9%). Cervical spinal fractures were significantly more common in patients injured in traffic accidents, while lumbar spinal fractures were more common in accidental fall patients. Using the American Spinal Injury Association (ASIA) classification, 479 (15.3%) patients were classified as having ASIA A injuries; 913 (29.1%), ASIA B, ASIA C, or ASIA D; and 1750 (55.7%), ASIA E. ASIA A injuries were more common in patients who suffered thoracic spinal fractures (15.09%) than in those with fractures in other areas of the spine. A total of 954 (30.4%) patients had associated nonspinal injuries. Of these patients, 389 (40.78%) suffered a thoracic injury, and 191 (20.02%) sustained a head and neck injury. The length of hospitalization differed significantly between the accidental falls from high heights and falls from low heights, as did the mean cost of hospitalization (p < 0.05), but no significant difference was found between accidental falls from high heights and traffic accidents (p > 0.05). The length of hospitalization differed significantly among the 3 groups according to the ASIA classification, as did the mean cost of hospitalization (p < 0.05). Of patients with incomplete lesions, 39.3% improved 1 or more grades in ASIA classification during hospitalization.

Conclusions

Accidental falls emerged as the leading cause of traumatic spinal fracture in this study, and the numbers of fall-induced and sports-related injuries increased steadily with age. These results indicate that there should be increased concern for the consequences of fall- and sports-related injuries among the elderly.
Deposition von Luftschadstoffen in der Schweiz: Entwicklung, aktueller Stand und Bewertung
Authors: Augustin Sabine , Achermann Beat
Published: September 2012

Deposition of air pollutants in Switzerland: development, current situation and assessment

In total, the emissions of nitrogen, sulfur and other anthropogenic air pollutants in Switzerland were reduced in the last decades. This is the result of effective measures of the air pollution abatement policies. Sulfur input in forests today is nearly negligible due to a reduction of emissions by more than 90 percent. Regarding nitrogen emissions the picture is less consistent: they are reduced in consequence of the abatement of nitrogen oxides emissions from combustion processes, but ammonia emissions from agriculture show a considerably less pronounced reduction, and since the year 2000 they remain on a high level. In 2007 the average inputs in forests amounted to 24 kg nitrogen per ha and 4.8 kg sulfur per ha. Natural nitrogen input is 1 to 3 kg per ha and year. On nearly all forest sites (>95%) the critical loads for nitrogen were exceeded. Nitrogen input consists of roughly two thirds of reduced ammonia nitrogen from agricultural activities and one third of oxidized nitrogen from combustion processes (traffic, households, industries, commerce). In 2007 the acidification potential of nitrogen and sulfur input in forests on many sites was considerably higher than the amount of available neutralizing cations (Ca, Mg, K) from the weathering of minerals and their input with dust. Further efforts are necessary to reduce the nitrogen load in forests to a tolerable amount.
Waldzustand in der Schweiz: Erfassung, Entwicklung und Einflussfaktoren
Authors: Dobbertin Matthias , Hug Christian , Walthert Lorenz
Published: September 2012

Forest condition in Switzerland: assessment, development and influencing factors

In the early 1980s it was feared that air pollution would cause a widespread forest decline and a reduction in forest productivity. In Switzerland as in most European countries crown defoliation and foliage discoloration were selected as the most important indicators of forest condition. The Sanasilva inventory on a systematic network of plots showed an increase in the proportion of trees with high defoliation until 1995. Since then no trend has been detected. However, large annual fluctuations were often observed following years with large-scale climatic events, such as the storms Vivian and Lothar and the heat summer of 2003. Although highly variable, neither mortality nor removal rates have shown any time trend since 1985. The annual differences in crown defoliation, mortality and tree growth are mainly related to climatic factors. In addition to the climatic conditions, nutrient availability, soil water holding capacity and to a lesser extent air pollution determine the degree of crown defoliation at a given site and for a given species. Although several studies have found a negative effect of nitrogen deposition or ozone concentrations on tree foliation, others have shown that up to now nitrogen deposition has increased tree growth on nitrogen-limited sites. It can thus be concluded that presently air pollution does not pose a direct threat to tree conditions in Switzerland. However, the assessment of crown condition alone is not a suitable tool to detect the effects of air pollution on forests. This requires more detailed measurements on long-term research sites. However, as crown condition is strongly affected by site conditions and climate, it should be further monitored, particularly with regard to the predicted climate change.
A Study on Arch Length Among Dentoalveolar Class I, Class II and Class III Malocclusion of Bangladeshi Population
Authors: Biswas Ashis Kumar , Hassan Gazi Shamim , Akhter Nasreen , Ghosh Ranjit , Babu Mohammad Rakibul Islam
Published: September 2012

Objectives : To study the variations in arch length among different classes of dento-alveolar malocclusion in the permanent dentition. Materials and Methods: Both male and female Bangladeshi subjects with permanent dentition who attended during 1st July 2007 to 1st January 2011 to the Department of Orthodontics, BSMMU for treatment were included in this study. Dental arch length were measured from dental casts of the permanent dentition of 96 Bangladeshi subjects of which 48 male, 48 female, 24 class 1, 24 class 2 div. I, 24 class 2 div. II, 24 class III. Arch length was measured by adapting a length of brass wire (diameter 0.5 mm) on the maxillary and mandibular arches. Comparison of arch length was done among different malocclusion classes. Results: In these study we found maxillary arch length was largest in class II div. 1 malocclusion. Mandibular arch length was highest in class III and lowest in class II div. 1 malocclusion. Least significant difference (LSD) is used to compare two of the four group. P<0.05 was set as the level of significance. Conclusions : Class III malocclusion has large lower arch and short upper arch. In Class II division 1, arch length is larger in upper than lower arch and Class II division 2 show the shortest maxillary arch length.DOI: http://dx.doi.org/10.3329/cdcj.v9i1.11827 City Dental College Journal Vol.9(1) 2012 1-3
Educational Intervention on HIV/AIDS among Selective Rural Women: Perspective Bangladesh
Authors: Pavel Md Shahed Rafi , Hasan AKM Tanzir , Farzan Md Sajedul Asif , Biswas Ashis Kumar , Akhter Nasrin , Mian Md Anower Hussain
Published: September 2012

A quasi-experimental study was carried out to assess the knowledge on HIV/ AIDS among women in Boro Chondrail & Barigaon village of Savar district from 19th April to 25th April 2009. A total of 77 women were selected purposively. Baseline data were collected through pretested structured questionnaires by face to face interview. Educational intervention was given and data were collected again using the same questionnaires. Only 49.35% heard the name of HIV /AIDS before the program. Among the respondents 18.42% heard the name of AIDS from television, 5.26% were from radio, 2.64% were from newspaper, 5.26% were from sign board and 68.42% were health workers. About the mode of transmission 29.87% said that HIV transmits by sharing syringe & needle, 31.17% answered unsafe physical relation, 16.88% said by blood of infected person, 5.19% knew about vertical transmission and 5.19% said by breast milk before intervention. After intervention 100% said that HIV transmits by sharing syringe & needle, 100% answered unsafe physical relation, 100% told by blood of infected person, 77.92% reported vertically transmission and 88.31% said through breast milk. Majority (70.13%) didnt know about the symptoms of AIDS before intervention. Only 11.69% identified weight loss as symptom of AIDS, 7.79% answered fever & cough, 28.69% told weakness, 1.30% mentioned diarrhoea. After intervention which were improved to 35.06%, 32.46%, 32.46%, 35.06%, 19.48%, 19.48% respectively. Before intervention 23.38% believed living in same house with an AIDS patient could infect others, 31.17% believed use same drinking glass and 14.29% believed eating together could infect others. After intervention no one found who believed in myth about AIDS. Among the respondents only 46.75% knew the role of condom in prevention of AIDS before intervention and it became 100% after the intervention. Only 12.58% knew intravenous drug users are the risk group with increased to 93.5% after the intervention. It may be concluded that the knowledge of rural women on HIV/AIDS were not good which raised significantly after the educational intervention.DOI: http://dx.doi.org/10.3329/cdcj.v9i1.11830 City Dental College Journal Vol.9(1) 2012 7-11
Comparison on Intermolar width among Different types of Malocclusion of Bangladeshi Population
Authors: Sajedeen Mahmood , Hassan Gazi Shamim , Biswas Ashis Kumar
Published: September 2012

Objectives: To compare inter-molar width of different classes of dento-alveolar malocclusion in the permanent dentition. Materials and Methods: This study was done at Department of Orthodontics, BSMMU between 1st July 2007 to 1st January 2011. 96 study patient was selected. inter-molar width were measured from dental casts of this Bangladeshi subjects of which 48 male, 48 female, 24 class 1, 24 class 2 div. I, 24 class 2 div. II, 24 class III. A slide calipers with a vernier scale was used to measure the inter-molar width and compared among different malocclusion classes. Results: Intermolar width in maxilla was found maximum in class I malocclusion but Intermolar width in mandible was maximum in class III malocclusion. Least significant difference (LSD) is used to compare two of the four group. P<0.05 was set as the level of significance. Conclusions : Statistically significant difference (p=0.0018) was found when the results is compared among the four malocclusion groups (Table 4). No group showed any significant difference except Class I and Class III, Class II div.1 and Class III, Class II div. 2 and Class III, when compared individually using LSD test (Table 3).DOI: http://dx.doi.org/10.3329/cdcj.v9i1.11831 City Dental College Journal Vol.9(1) 2012 12-14
Management of generalized attrition with an overlay removable partial denture for restoration of the OVDa new treatment option
Authors: Begum Aleya , Islam Md Saiful , Ahmed Rubaba , Khan Atiquzzaman
Published: September 2012

Overlay removable partial denture can be used as an interim prosthesis for the patients who have lost their occlusal vertical dimension due to moderate to severe attrition resulting in functional and esthetic problems. This prosthesis is believed to allow neuromuscular adjustments to a newly adjusted VDO and also to observe the function and esthetics. ORPDs provide reversible and relatively inexpensive treatment for the patients who have limitations. In this case report, a patient was treated with overlay removable partial denture for restoring the lost vertical dimension. This article reviews indication, advantage, disadvantages of ORPDs. Though there are esthetic and functional limitations with potential risk of material fracture, all patients with severely worn dentition with decreased VDO and missing teeth should be offered this treatment option. Regular recall and maintenance visit are essential for long term success of ORPDs.DOI: http://dx.doi.org/10.3329/cdcj.v9i1.11834 City Dental College Journal Vol.9(1) 2012 23-27
Hospital Textiles, Are They a Possible Vehicle for Healthcare-Associated Infections?
Authors: Fijan Sabina , Turk Sonja Šostar
Published: September 2012

Textiles are a common material in healthcare facilities; therefore it is important that they do not pose as a vehicle for the transfer of pathogens to patients or hospital workers. During the course of use hospital textiles become contaminated and laundering is necessary. Laundering of healthcare textiles is most commonly adequate, but in some instances, due to inappropriate disinfection or subsequent recontamination, the textiles may become a contaminated inanimate surface with the possibility to transfer pathogens. In this review we searched the published literature in order to answer four review questions: (1) Are there any reports on the survival of microorganisms on hospital textiles after laundering? (2) Are there any reports that indicate the presence of microorganisms on hospital textiles during use? (3) Are there any reports that microorganisms on textiles are a possible source infection of patients? (4) Are there any reports that microorganisms on textiles are a possible source infection for healthcare workers?
New 14-Membered Cyclopeptide Alkaloids from Zizyphus oxyphylla Edgew
Authors: Kaleem Waqar Ahmad , Nisar Muhammad , Qayum Mughal , Zia-Ul-Haq Muhammad , Adhikari Achyut , De Feo Vincenzo
Published: September 2012

Two new 14-membered cyclopeptide alkaloids, Oxyphylline B (4) and Oxyphylline C (5), along with three known 13-membered cyclopeptide alkaloids, were isolated from stem and roots of Zizyphus oxyphylla Edgew. The compounds were tested for antibacterial activity. Oxyphylline B (4) showed comparatively better antibacterial activities against Escherichia coli (MIC, 5 µg/mL) than other compounds. This compound also exhibited weak antimicrobial activities against Staphylococcus aureus (MIC, 25 µg/mL), Pseudomonas aeruginosa (MIC, 50 µg/mL) and Salmonella typhi (MIC, 50 µg/mL).
α-Tocopherol at Nanomolar Concentration Protects PC12 Cells from Hydrogen Peroxide-Induced Death and Modulates Protein Kinase Activities
Authors: Zakharova Irina O. , Sokolova Tatyana V. , Bayunova Liubov V. , Vlasova Yulia A. , Rychkova Maria P. , Avrova Natalia F.
Published: September 2012

The aim of this work was to compare protective and anti-apoptotic effects of α-tocopherol at nanomolar and micromolar concentrations against 0.2 mM H2O2-induced toxicity in the PC12 neuronal cell line and to reveal protein kinases that contribute to α-tocopherol protective action. The protection by 100 nM α-tocopherol against H2O2-induced PC12 cell death was pronounced if the time of pre-incubation with α-tocopherol was 3–18 h. For the first time, the protective effect of α-tocopherol was shown to depend on its concentration in the nanomolar range (1 nM < 10 nM < 100 nM), if the pre-incubation time was 18 h. Nanomolar and micromolar α-tocopherol decreased the number of PC12 cells in late apoptosis induced by H2O2 to the same extent if pre-incubation time was 18 h. Immunoblotting data showed that α-tocopherol markedly diminished the time of maximal activation of extracellular signal-regulated kinase 1/2 (ERK 1/2) and protein kinase B (Akt)-induced in PC12 cells by H2O2. Inhibitors of MEK 1/2, PI 3-kinase and protein kinase C (PKC) diminished the protective effect of α-tocopherol against H2O2-initiated toxicity if the pre-incubation time was long. The modulation of ERK 1/2, Akt and PKC activities appears to participate in the protection by α-tocopherol against H2O2-induced death of PC12 cells. The data obtained suggest that inhibition by α-tocopherol in late stage ERK 1/2 and Akt activation induced by H2O2 in PC12 cells makes contribution to its protective effect, while total inhibition of these enzymes is not protective.
Is DNA Damage Response Ready for Action Anywhere?
Authors: Terradas Mariona , Martín Marta , Hernández Laia , Tusell Laura , Genescà Anna
Published: September 2012

Organisms are continuously exposed to DNA damaging agents, consequently, cells have developed an intricate system known as the DNA damage response (DDR) in order to detect and repair DNA lesions. This response has to be rapid and accurate in order to keep genome integrity. It has been observed that the condensation state of chromatin hinders a proper DDR. However, the condensation state of chromatin is not the only barrier to DDR. In this review, we have collected data regarding the presence of DDR factors on micronuclear DNA lesions that indicate that micronuclei are almost incapable of generating an effective DDR because of defects in their nuclear envelope. Finally, considering the recent observations about the reincorporation of micronuclei to the main bulk of chromosomes, we suggest that, under certain circumstances, micronuclei carrying DNA damage might be a source of chromosome instability.
Synthesis, Crystal Structure and Luminescent Property of Cd (II) Complex with N-Benzenesulphonyl-L-leucine
Authors: Tai Xishi , Jiang Jinhe
Published: September 2012

A new trinuclear Cd (II) complex [Cd3(L)6(2,2-bipyridine)3] [L = N-phenylsulfonyl-L-leucinato] has been synthesized and characterized by elemental analysis, IR and X-ray single crystal diffraction analysis. The results show that the complex belongs to the orthorhombic, space group P212121 with a = 16.877(3) Å, b = 22.875(5) Å, c = 29.495(6) Å, α = β = γ = 90°, V = 11387(4) Å3, Z = 4, Dc= 1.416 μg·m−3, μ = 0.737 mm−1, F (000) = 4992, and final R1 = 0.0390, ωR2 = 0.0989. The complex comprises two seven-coordinated Cd (II) atoms, with a N2O5 distorted pengonal bipyramidal coordination environment and a six-coordinated Cd (II) atom, with a N2O4 distorted octahedral coordination environment. The molecules form one dimensional chain structure by the interaction of bridged carboxylato groups, hydrogen bonds and p-p interaction of 2,2-bipyridine. The luminescent properties of the Cd (II) complex and N-Benzenesulphonyl-L-leucine in solid and in CH3OH solution also have been investigated.
Thermodynamic Database for Mg Alloys—Progress in Multicomponent Modeling
Authors: Schmid-Fetzer Rainer , Gröbner Joachim
Published: September 2012

Progress in systematic development of a thermodynamic database for Mg alloys with 21 components is reported. Models for multicomponent alloys are built in a methodical approach from quantitative descriptions of unary, binary and ternary subsystems. For a large number of ternary—and some higher—alloy systems, an evaluation of the modeling depth is made with concise reference to experimental work validating these thermodynamic descriptions. A special focus is on ternary intermetallic phase compositions. These comprise solutions of the third component in a binary compound as well as truly ternary solid solution phases, in addition to the simple ternary stoichiometric phases. Concise information on the stability ranges is given. That evaluation is extended to selected quaternary and even higher alloy systems. Thermodynamic descriptions of intermetallic solution phases guided by their crystal structure are also elaborated and the diversity of such unified phases is emphasized.
A 3-D Metal-Organic Framework Constructed with Manganese(ΙΙ), 4,4'-Oxybis(benzoic acid) and 2,2'-Biphenyl: Synthesis, Crystal Structure and Photoelectric Property Characterization
Authors: Diao Kai-Sheng , Li Long , Ding Yu-Qiu , Lei Fu-Hou
Published: September 2012

Assembly of 4,4'-oxybis(benzoic acid) (H2L) with manganese chloride in the presence of 2,2'-biphenyl (2,2'-bpy) affords a new coordination polymer [Mn3L3(2,2'-bpy)2]n (1), in which the [MnL2]n layers are extended by L bridges resulting in a three-dimensional (3-D) coordination framework. The network structure of 1 has unusual (2,6)-connectivity and represents a new type of (812·123)(8)(3) topology. These identical and complementary networks are entangled to generate a self-penetrating supramolecular lattice. Moreover, the fluorescence spectrum of 1 exhibits fluorescent emission in the solution of methanol at room temperature. Electrochemical investigation illustrates the electrochemical properties of the title compound. The structure (C62H40Mn3N4O15)n is monoclinic with a = 14.2304(18), b = 17.019(2), c = 25.805(3) Å, α = γ = 90, β = 92.932(2)° and space group C2/c.