bluuebunny/crossref_metadata_2025 huggingface dataset:
Qualitative analysis of hexane flour extract of spelt
Authors: Vujic Djura , Psodorov Djordje , Acanski Marijana , Bodroza-Solarov Marija , Brkljaca Jovana
Published: December 2013

Gas chromatography with mass spectrometry (GC-MS) was used for performing a
qualitative analysis of the hexane flour extract of three samples of spelt.
All the three samples were first treated with hexane and the obtained
extracts were used for the analysis of the fatty acid lipid components. The
transesterification reaction was performed using TMSH (trimethylsulfonium
hydroxide, 0.2M in methanol), and the fatty acids were esterified from
acylglycerol to methyl-esters. In all analyzed extracts, the predominant
component was methyl linoleate, followed by methyl oleate and methyl
palmitate. The subsequent tests, performed by cluster analysis, were used to
compare the hexane flour extracts of different types of spelt.
Characterization and utilization of the permeate and retentate obtained after “dead-end” ultrafiltration
Authors: Vasic Vesna , Sciban Marina , Prodanovic Jelena , Kukic Dragana
Published: December 2013

In the recent years, with the increase in bioethanol production, the
increasing amounts of distillery wastewater are generated. Such wastewater
(stillage) is one of the most polluted waste product of the food and beverage
industries. The present study evaluates the treatment of distillery
wastewater by ultrafiltration (UF), in order to reduce its pollution and
evaluate the composition of the permeate and retentate. Polyethersulfone
ultrafiltration membrane with molecular weight cut-off (MWCO) 30000 Da, was
used for the experiments. The UF was carried out in dead-end mode. The
results of the analyses of the permeate and retentate obtained after
ultrafiltration were considered as well as different ways for their further
utilization. The pollutant level in the permeate was decreased significantly
in comparison to the raw stillage, and suspended solids were completely
removed from the stillage.
Characterization of photocatalytically active coatings based on TiO2/Zn-Al layered double hydroxide on ceramic tiles
Authors: Vulic Tatjana , Rudic Ognjen , Ranogajec Jonjaua
Published: December 2013

The self-cleaning function (photocatalytic activity and surface
hydrophilicity/hydrophobicity) is of great importance for ceramic tiles from
both economic and environmental point of view. This research is focused on
the preparation of suitable photocatalytic suspensions studying the influence
of the photocatalyst powder amount and the molecular mass of polyethylene
glycol (PEG) on the self-cleaning properties of the suspensions deposited on
the ceramic tile surface. Photocatalysts based on Zn-Al double layered
hydroxides with TiO2 as active component, were synthesized and used for the
preparation of the suspensions. The coated tiles prepared using smaller
photocatalyst amount and the highest investigated molecular mass of PEG (PEG
4000) showed the highest photocatalytic activity in the Rhodamine B
degradation reaction, as well as the appropriate surface properties.
Bioactive compounds and antioxidant properties of dried apricot
Authors: Canadanovic-Brunet Jasna , Vulic Jelena , Cetkovic Gordana , Djilas Sonja , Tumbas-Saponjac Vesna
Published: December 2013

Dried apricot was extracted using two different solvents: 80% ethanol and
hexane. The contents of total phenolics, flavonoids and anthocyanins were
determined in ethanol apricot extract (EAE), while the carotenoid content was
determined in hexane apricot extracts (HAE) by spectrophotometric method. The
detected amounts of bioactive compounds in dried apricot were: phenolics
498.13 ? 12.04 mg GAE/100g DA, flavonoids 218.45 ? 14.14 mg R/100g DA and
anthocyanins 3.08 ? 0.40 mg CGE/100g DA. In dried apricot the ?-carotene was
present in the amount of 0.56 ? 0.03 mg/100g DA. Some individual phenolic
compounds in EAE were determined by HPLC analysis and the most dominant
compound was gallic acid (35.02 ? 1.65 mg/100g DA). Free radical scavenging
activities of EAE and HAE were tested spectrophotometrically using stable
DPPH radicals and reducing power method. The EC50 value for EAE was 2.05 ?
0.06 mg/ml and for HAE was 6.28 ? 0.01 mg/ml. The RP0.5 values determined by
reducing power method were 6.11 ? 0.01 mg/ml for EAE and 62.04 ? 0.03 mg/ml
for HAE. The results indicate that dried apricot can be a valuable source of
natural antioxidants and can be used as a functional food ingredient in the
food industry.
Neural network modelling of antifungal activity of a series of oxazole derivatives based on in silico pharmacokinetic parameters
Authors: Kovacevic Strahinja , Podunavac-Kuzmanovic Sanja , Jevric Lidija , Kalajdzija Natasa
Published: December 2013

In the present paper, the antifungal activity of a series of benzoxazole and
oxazolo[ 4,5-b]pyridine derivatives was evaluated against Candida albicans by
using quantitative structure-activity relationships chemometric methodology
with artificial neural network (ANN) regression approach. In vitro antifungal
activity of the tested compounds was presented by minimum inhibitory
concentration expressed as log(1/cMIC). In silico pharmacokinetic parameters
related to absorption, distribution, metabolism and excretion (ADME) were
calculated for all studied compounds by using PreADMET software. A
feedforward back-propagation ANN with gradient descent learning algorithm was
applied for modelling of the relationship between ADME descriptors
(blood-brain barrier penetration, plasma protein binding, Madin-Darby cell
permeability and Caco-2 cell permeability) and experimental log(1/cMIC)
values. A 4-6-1 ANN was developed with the optimum momentum and learning
rates of 0.3 and 0.05, respectively. An excellent correlation between
experimental antifungal activity and values predicted by the ANN was obtained
with a correlation coefficient of 0.9536.
In vitro antioxidant activity of honeydew and multifloral types of honey from Serbia
Authors: Maksimovic Zoran , Nedic Nebojsa
Published: December 2013

Antioxidant properties of fifteen multifloral and honeydew types of honey
from Serbia were assessed by determination of ferric-reducing antioxidant
power (FRAP assay) and 2,2- diphenyl-1-picrylhydrazyl free radical scavenging
ability (DPPH assay), with respect to their total polyphenol content and
colour intensity. The results of this study showed that total polyphenol
content, antioxidant activity and colour intensity varied widely among
different samples, even within the same type of honey. All investigated
parameters were strongly dependent on geographic origin of samples, further
emphasizing the importance of their detailed chemical characterisation. In
general, polyphenolic content in investigated samples of honey, expressed as
catechin equivalents, ranged from 480.2 to 1861.1 mg/kg. The ferric-reducing
antioxidant power of honey tended to be lower in brighter and higher in
darker samples, varying between 489.6 and 3089.8 ?mol Fe(II) per 100 g of
honey. The correlation between the colour and antioxidant activity never
reached statistical significance in the case of honeydew type of honey, which
was opposed to a trend observed in the case of multifloral honey.
Kinetic study of the DPPH antiradical activity of lipophilic tomato waste extracts
Authors: Stajcic Sladjana , Cetkovic Gordana , Djilas Sonja , Canadanovic-Brunet Jasna
Published: December 2013

In this study, lipophilic tomato waste extracts (obtained from the Knjaz,
Backa, Saint Pierre, Rutgers and Novosadski niski genotypes) were analyzed to
determine their lycopene and ?-carotene content, as well as their kinetics of
antiradical activity. The kinetic behaviour of lipophilic tomato waste
extracts and standard antioxidant compound (BHA) were investigated using the
2,2-diphenyl-1-picrylhydrazyl (DPPH) radical test. In addition, correlations
between the contents of lycopene and ?-carotene content and antiradical
activity of lipophilic tomato waste extracts were also sought. The content of
lycopene in tomato waste extracts ranged from 4.29 ? 0.14 mg/g for Rutgers
waste exract to 22.64 ? 0.86 mg/g for Knjaz waste extract, while the content
of ?-carotene varied from 2.48 ? 0.09 mg/g for Novosadski niski waste exract
to 15.93 ? 0.56 mg/g for Knjaz waste extract. Based on the time required for
the DPPH radical-extract reaction to reach steady state, the investigated
lipophilic extracts, as well as BHA can be classified as the antioxidants
with slow (steady state ? 150 min) antiradical behaviour. A comparison of the
efficient concentrations at different kinetic times (EC50,t) for the
lipophilic tomato waste extracts and BHA showed that the DPPH antiradical
activity decreased in the order of BHA > Knjaz > Backa > Saint Pierre >
Rutgers > Novosadski niski. The results of the correlation analysis suggest
that lycopene is the main individual carotenoid responsible for the EC50,t
values of the tomato waste extracts towards the stable DPPH radical.
Continuous ethanol production from sugar beet thick juice by Saccharomyces cerevisiae immobilized onto sugar beet pulp
Authors: Vucurovic Vesna , Razmovski Radojka , Miljic Uros , Puskas Vladimir
Published: December 2013

The immobilization of Saccharomyces cerevisiae onto sugar beet pulp (SBP) by
natural adhesion is an efficient and low-cost method for retaining high
biocatalyst density in the ethanol fermentation system. In the present study,
cells of S. cerevisiae 163, were immobilized by natural adhesion onto SBP.
The retention of immobilized cells attained the level of about 1.7?1011
cells/gram of dry SBP. Continuous ethanol production from sugar beet thick
juice (TJ) was performed in a cylinder glass bioreactor at a temperature of
30?C and pH 5 during a 27-day period. The stability of the fermentation
process at dilution rate (D) of 0.025 h-1 and 0.05 h-1 was evaluated. The
yeast-SBP system was shown to be stable for over a 15-day period at the
dilution rate of 0.025 h-1, while the dilution rate of 0.05 h-1 was found to
be unsuitable due to the intensive yeast leaching from the support. At D of
0.025 h-1 the maximum sugar utilization (Su), ethanol concentration (P),
volumetric ethanol productivity (Qp), ethanol yield (Yp/s) and fermentation
efficiency were 97.1%, 54.7 g/l, 2.3 g/lh, 0.498 g/g and 97.6%, respectively.
Relative effect of organic and inorganic fertilizers on the growth of okra [Abelmoschus esculentus (L.) Moench]
Authors: Uka Ufere , Chukwuka Kanayo , Iwuagwu Mary
Published: December 2013

A greenhouse experiment was conducted to study the relative effect of organic
and inorganic fertilizers on the growth of okra (Abelmoschus esculentus).
The experiment consisted of four treatments. Cow dung and poultry droppings
were applied at the rates of 2.5 kg per 10 kg of soil one week before
sowing, while NPK fertilizer (15:15:15) was applied at the rate of 6 g per
10 kg of soil three weeks after sowing. The treatments were laid in a
completely randomized design with three replications. Plant growth was
assessed using plant height, fresh weight, leaf area and dry weight. The
application of cow dung, poultry droppings and NPK fertilizer had
significant effects on all the parameters assessed. The application of
poultry droppings gave plants with the greatest plant height, leaf area and
fresh weight, while cow dung application gave the greatest dry weight. The
data obtained from these treatments were significantly higher than the data
obtained from the control. It was, therefore, concluded that the use of
organic manure in the production of vegetables like okra should be
encouraged.
Phenology, production and fruit quality of new Czech apricot cultivars in the Belgrade region
Authors: Milatovic Dragan , Djurovic Dejan , Zec Gordan
Published: December 2013

This study was aimed at evaluating of 14 new apricot cultivars created at the
Faculty of Horticulture in Lednice in the Czech Republic in order to
recommend the best of them for growing in the Belgrade region. The study was
carried out at the Experimental station ?Radmilovac? of the Faculty of
Agriculture in Belgrade over a period of five years (2009-2013). The
experimental orchard was established in 2007, the rootstock was Myrobalan
seedling, and tree spacing was 4.5 x 3 m. The control cultivar for comparison
was the clone of ?Velkopavlovick?? cultivar (type of ?Hungarian Best?),
LE-12/2. Flowering of introduced cultivars started from three days before to
one day after the control cultivar, while the maturation time ranged from 19
days earlier in cultivar ?Leskora? to 12 days after the control in cultivar
?Sophia? (LE-2926). Compared with the control cultivar, significantly higher
yield was achieved only in cultivar ?Palava?, while significantly higher
fruit weight was recorded in three cultivars: ?Candela? (LE-2927), ?Sophia?
(LE-2926) and ?Betinka? (LE-3276). Cultivars ?Sophia? and ?Betinka? got the
best scores for fruit appearance, while cultivars ?Marlen? and ?Lebona?
ranked the highest for fruit taste. Among studied apricot cultivars, for the
cultivation in the Belgrade region, the following cultivars can be
recommended as promising: ?Palava? (early season), ?Betinka? (mid-season) and
?Sophia? (late season). Regarding the large size and attractive appearance of
fruits, these cultivars are more suitable for fresh consumption, but they can
also be used for processing.
Influence of cyanide on some antioxidant enzymes of freshwater fish, Cirrhinus mrigala (Hamilton)
Authors: Alavandi Shwetha , Hosetti Basaling
Published: December 2013

Sublethal toxicity of cyanide to freshwater fish, Cirrhinus mrigala was
evaluated to determine its effect on the activities of some antioxidative
enzymes. Changes in succinate dehydrogenase (SDH), lactate dehydrogenase
(LDH) and glucose-6-phosphate dehydrogenase (G6-PDH) were observed in tissues
of the tested animal. Cyanide significantly decreased the activity of SDH,
and G6-PDH in the liver, gill and brain tissues of the fish. The elevation of
LDH indicated metabolic disorders and a clear response against energy
depletion. Changes in the dehydrogenase activity in cyanide treated fish
tissues may be due to fluctuations in oxidative metabolism. It is concluded
that the cyanide intoxication exerted a profound impact on the enzymatic
activity of the fish, as observed in the hitherto study.
Influence of different meal sizes on growth characteristics of young rainbow trout (Oncorhynchus mykiss Wal).
Authors: Savic Nebojsa , Drinic Milanka , Vazic Bozo , Rogic Biljana
Published: December 2013

This paper presents the results of the effects of different sizes of meals
(80%, 90%, 100%, 110% and 120% regarding the amount recommended by the food
producer) on the growth characteristics of young rainbow trout (Oncorhynchus
mykiss Wal.) aged from 2 to 3.5 months. The experiment was carried out at the
Laboratory of Aquaculture, Faculty of Agriculture, University of Banja Luka
for a period of 47 days. In the experiment, there were a total of 500 fish,
divided into five groups, and placed in the 55-l aquarium with a constant
flow of water and the aeration system. The main parameters of water quality
were analyzed every day and they included: water temperature 12.64-12.76?C,
content of dissolved oxygen 7.83-8.09 mg/l, saturation of water with oxygen
75.47-77.39% and pH value 7.224-7.268. In the end, the average individual
weight and body length (?standard deviation) of young rainbow trout,
regarding the experimental groups (EG), were reached: EG80 10.53?2.58 g and
9.94?0.76 cm, EG90 12.14?2.97 g and 10.45?0.86 cm, EG100 13.18?2.91 g and
10.67?0.82 cm, EG110 13.80?3.14 g and 10.82?0.78 cm, EG120 14.58?3.63 g and
10.81?1.11 cm. Statistically highly significant differences were found
between the means of experimental groups (p <0,01). The coefficient of
condition of young rainbow trout at the end of the experiment was similar in
the treatments EG80, EG90, EG100 and EG110 (1.06 to 1.09), and it was the
highest in the treatment EG120 (1,15?0,17). Generally, it can be said that
increasing of the size of meals up to 10% above the recommended value does
not cause significant differences, and if the increase is greater than 10%,
statistically significant difference in body weight occurs.
Physiological function of non-glandular trichomes in red clover (Trifolium pratense L.)
Authors: Naydenova Galina , Georgiev Georgi
Published: December 2013

The objective of the trial was to study the physiological function and
potential ecological significance of non-glandular trichomes in red clover
based on their relation to the leaf transpiration intensity. The
transpiration rate, relative water content and water deficit of the leaves
were recorded in field-grown, high and slightly pubescent genotypes.
According to results, the presence of nonglandular epidermal trichomes on the
leaf surface of red clover was a micromorphological trait related to the
regulation of leaf transpiration in stressful conditions. Non-glandular
trichomes significantly enhanced water retention of the leaf tissue at high
leaf water deficit. In the environmental conditions, limiting leaf
evaporation, the pubescent genotypes displayed higher levels of
transpiration. It can be suggested that the non-glandular trichomes in red
clover are morphological structures supporting the function of leaf stoma
apparatus. A positive relation between the degree of pubescence and
resistance to powdery mildew was established under natural conditions.
TRIZ method application for improving the special vehicles maintenance
Authors: Petrovic Sasa , Lozanovic-Sajic Jasmina , Knezevic Tijana , Pavlovic Jovan , Ivanov Goran
Published: December 2013

TRIZ methodology provides an opportunity for improving the classical
engineering approach based on personal knowledge and experience. This paper
presents the application of TRIZ methods for improving vehicle maintenance
where special equipment is installed. A specific problem is the maintenance
of the periscopes with heating system. Protective glass panels with heating
system are rectangular glass elements. Their purpose is to perform mechanical
protection of built-in prisms and provide heating of the prisms. Aging and
long-term use leads to failure of these elements. The practice requires
solutions in order to extend the lifetime of the system. New solution is
evaluated by simulation and experiment.
A numerical creep analysis on the interastion of twin parallel edge cracks in finite width plate under tension
Authors: Katinic Marko , Kozak Drazan , Pavisic Mirko , Konjatic Pejo
Published: December 2013

In many practical situations, high-temperature structures and components contain more than one crack. An interaction of such multiple cracks has significant influence on the service life of structures and components. In this paper, the interaction of two identical parallel edge cracks in a finite plate subjected to the remote tension is numerically analyzed. The results show that interaction effect of multiple cracks at creep regime is obviously greater than at linear elastic regime. The intensity of creep crack interaction increases with increasing creep exponent m. The crack intensity and the crack interaction limit at creep regime depend on crack distance ratio d/a, crack width ratio a/W and creep exponent m.
Microcirculatory effects of a hyperviscous hemoglobin-based solution administered intravenously in dogs with experimentally induced hemorrhagic shock
Authors: Peruski Ann M. , Cooper Edward S. , Butler Amy L.
Published: December 2013

Objective—To determine whether increasing the viscosity of a standard hemoglobin-based oxygen-carrying solution (HBOC) would offset its associated vasoconstrictive effects and result in improved microvascular perfusion in healthy splenectomized dogs with experimentally induced hemorrhagic shock.

Animals—12 male American Foxhounds.

Procedures—Each dog underwent anesthesia and splenectomy. Shock was induced by controlled hemorrhage until a mean arterial blood pressure of 40 mm Hg was achieved and maintained for 60 minutes. Dogs were then randomly assigned to receive either a standard or hyperviscous HBOC (6 dogs/group). Sidestream dark-field microscopy was used to assess the effects of shock and HBOC administration on the microcirculation of the buccal mucosa and the jejunal serosa. Video recordings of the microcirculation were collected before shock was induced (baseline) and at intervals up to 180 minutes following HBOC administration. Vascular analysis software was used to compute microcirculatory variables.

Results—Compared with baseline findings, hemorrhagic shock resulted in decreases in all microvascular variables in the buccal mucosa and the jejunal serosa. At all time points following HBOC administration, microvascular variables were similar to initial values and no significant differences between treatment groups were detected. At all time points following HBOC administration, blood and plasma viscosities in dogs treated with the hyperviscous solution were significantly higher than values in dogs receiving the standard solution.

Conclusions and Clinical Relevance—In splenectomized dogs with experimentally induced hemorrhagic shock, administration of a hyperviscous HBOC did not significantly affect microvascular variables, compared with effects of a standard HBOC. Microcirculatory flow returned to baseline values in both treatment groups, suggesting that marked HBOC-associated vasoconstriction did not occur.
Comparison of bronchoalveolar lavage fluid obtained by manual aspiration with a handheld syringe with that obtained by automated suction pump aspiration from healthy dogs
Authors: Woods Katharine S. , Defarges Alice M. N. , Abrams-Ogg Anthony C. G. , Dobson Howard , Brisson Brigitte A. , Viel Laurent , Bienzle Dorothee
Published: December 2013

Objective—To compare bronchoalveolar lavage (BAL) fluid obtained by manual aspiration (MA) with a handheld syringe with that obtained by suction pump aspiration (SPA) in healthy dogs.

Animals—13 adult Beagles.

Procedures—Each dog was anesthetized and bronchoscopic BAL was performed. The MA technique was accomplished with a 35-mL syringe attached to the bronchoscope biopsy channel. The SPA technique was achieved with negative pressure (5 kPa) applied to the bronchoscope suction valve with a disposable suction trap. Both aspiration techniques were performed in each dog in randomized order on opposite caudal lung lobes. Two 1 mL/kg aliquots of warm saline (0.9% NaCl) solution were infused per site. For each BAL fluid sample, the percentage of retrieved fluid was calculated, the total nucleated cell count (TNCC) and differential cell count were determined, and semiquantitative assessment of slide quality was performed. Comparisons were made between MA and SPA techniques for each outcome.

Results—1 dog was removed from the study because of illness. The mean percentage of fluid retrieved (mean difference, 23%) and median TNCC (median distribution of differences, 100 cells/μL) for samples obtained by SPA were significantly greater than those for samples obtained by MA.

Conclusions and Clinical Relevance—In healthy dogs, BAL by SPA resulted in a significantly higher percentage of fluid retrieval and samples with a higher TNCC than did MA. Further evaluation of aspiration techniques in dogs with respiratory tract disease is required to assess whether SPA improves the diagnostic yield of BAL samples.
The very idea of academic culture: What academy? What culture?
Authors: Barnett Ronald
Published: December 2013

In what senses can the academy be said to be a site of culture? Does that very idea bear much weight today? Perhaps the negative proposition has more substance, namely that the academy is no longer (if indeed it ever was) a place of culture. After all, we live in dark times-of unbridled power, tyranny, domination and manipulation. Some say that we have entered an age of the posthuman or even the inhuman. It just may be, however, that in such a world, the academic community is needed more than ever for it offers a culture of justified revelation. It is a culture that reveals the world to us in new ways, but in ways that are attested and contested; its judgements emerge out of a critical and unworldly pedantry. With some hesitancy, we can legitimately therefore speak of not just a culture of the academic community but, indeed, the culture of the academic community.
Using ethnography to understand twenty-first century college life
Authors: Iloh Constance , Tierney William
Published: December 2013

Ethnography in the field of postsecondary education has served as a magnifying glass bringing into focus university culture and student life. This paper highlights the ways in which ethnography is especially useful for understanding more recent dynamics and shifts in higher education. The authors utilize existing literature to uphold the relevancy of ethnography, while exploring its opportunities for research on adult students, online education, and for-profit colleges in particular. They conclude with methodological recommendations and directions for both qualitative research and higher education scholarship.
Contemporary dilemmas in university and academic education - a Central European perspective
Authors: Kosová Beata
Published: December 2013

This study is a philosophically sociological and pedagogical reflection on the current status of universities as institutions and the profile of university education. It draws attention to the original characteristics that made up the idea and essence of university, which should not be forgotten at a time when higher education institutions are being diversified. It analyzes the development of higher education in terms of its functions and value in the context of societal change in the era of industrialization and globalization. It contemplates the university’s loss of identity at a time when financial capital prevails over science and technology, and educational preferences favor the market and practice. It considers paradigmatic change in university education as well as the future role of universities. The paper reflects on global trends through the eye of transforming countries, although it does not directly cover these countries directly.
Beyond the myth of “self-domination” (Imaginal psychology in the pursuit of cultural shift)
Authors: Vrbata Aleš
Published: December 2013

This paper deals with the theoretical concepts of image and imagery as used by the foremost imaginal psychologists. Attributing primary epistemological status to image and imagery, imaginal psychology school developed a new theory of image and imagery, questioning the older thesis on the derivative and secondary epistemological status of the image. Using Jung’s concept of the autonomous psyche of an essentially archetypal nature, Hillman started to question Jung’s concept of the Self as a central archetype symbolizing a sort of disguised traditional monotheism (the Christian God, the Jewish Yahweh etc.) like Freud’s sexuality (id) or central cultural myth (the Oedipus myth). Imaginal psychology defends essential sovereignty and the equality of all images and the resultant polytheist psychology. Jungian studies set out it this direction, giving birth to parallel developments to imaginal psychology in various fields. Derrida’s and Feyerabend’s rejection of an ultimate referential frame was not identical to but corresponds to Hillman’s and Vannoy Adam’s discovery that it is fantasy that rules the psyche.
Bénévolat et accès à l'emploi
Authors: Bougard Jonathan , Brodaty Thomas , Emond Céline , L’Horty Yannick , du Parquet Loïc , Petit Pascale
Published: December 2013

L’objet de la recherche est d’évaluer l’effet d’activités de bénévolat pendant les études sur l’accès à l’emploi de jeunes qualifiés en Île-de-France. L’analyse est réalisée sur données expérimentales de testing : 7 553 candidatures envoyées en réponse à 581 offres d’emploi entre avril et juillet 2010. Quatre professions ont été examinées : informaticiens diplômés d’un dut , développeurs informatiques diplômés d’un master, chargés de clientèle dans la banque-assurance diplômés d’un dut et gestionnaires de patrimoine diplômés d’un master. Nous ne trouvons pas de rendement spécifique de l’engagement bénévole du point de vue des chances d’accéder à l’emploi, voire un rendement négatif. Ni un investissement en capital humain ni un effet de signal ne semblent donc constituer des motivations valorisées lors de l’accès au marché du travail.
Crise de la théorie et crise de la politique économique
Authors: Gaffard Jean-Luc
Published: December 2013

Dans cet article, une évaluation critique des modèles d’équilibre général dynamique stochastique, qui constituent le fondement théorique des politiques mises en œuvre par les banques centrale, est le point de départ pour reconsidérer la nature des fluctuations et produire des arguments en faveur d’une approche « hors de l’équilibre ». Cette dernière met l’accent sur les distorsions de la capacité productive induites par tout changement structurel et montre pourquoi et comment l’incohérence temporelle entre les phases de construction et d’utilisation de la capacité productive a une contrepartie monétaire et financière qui peut engendrer une instabilité globale. Elle appelle une révision des objectifs de la politique monétaire et un nouveau Policy mix.
La justice est aveugle
Authors: Kandil Feriel
Published: December 2013

Résumé L’article soutient que l’impartialité conçue comme ignorance est un premier pas, nécessaire mais insuffisant, vers la justice sociale. Il montre la pertinence de placer l’évaluateur social sous un voile d’ignorance : ses jugements sont alors soumis au principe moral d’universalisation, lequel en garantit l’impartialité. Mais la modélisation de l’impartialité diffère selon que l’on interprète de manière kantienne ou utilitariste le principe sous-jacent d’universalisation. L’article compare le modèle utilitariste de l’observateur impartial de Harsanyi au modèle kantien de l’observateur ignorant de Gajdos et Kandil. Il défend ce dernier, lequel prouve que, contrairement à ce que prétendait Rawls, le critère de choix sous voile d’ignorance n’est pas univoque.
Le développement de la théorie de l'équilibre général
Authors: Béraud Alain
Published: December 2013

Dans le développement des théories de l’équilibre général, Hicks et Allais ont joué un rôle essentiel. On étudie ici les contributions qui furent les leurs respectivement dans Valeur et Capital (1939) et dans le Traité d’économie pure (1943). L’accent est mis sur trois points : la théorie du bien-être, la stabilité de l’équilibre et la construction d’un modèle dynamique.
Droit des actionnaires et concentration de la propriété en Europe
Authors: Auvray Tristan
Published: December 2013

Cet article propose des indicateurs juridiques portant sur le pouvoir décisionnaire des actionnaires en assemblée générale dans quinze pays européens. Élaborés à l’aide d’une étude de droit comparé (Shearman & Sterling LLP [2007]), ces indicateurs reflètent la capacité des actionnaires à nommer et à révoquer les administrateurs des sociétés cotées d’une part (« droits de contrôle »), ainsi que leur implication dans un ensemble de décisions en assemblée générale d’autre part (« droits de structure »). Les indicateurs classiques de la Law and Finance et les mesures élaborées ici sont ensuite confrontés pour expliquer la concentration actionnariale de 287 sociétés cotées. Cette étude montre l’existence d’une complémentarité institutionnelle entre la concentration de la propriété des actions, la régulation des conflits d’agence et le pouvoir des actionnaires en assemblée générale.
Private Benefits and Product Market Competition
Authors: Thépot Jacques
Published: December 2013

Bénéfices privés et concurrence sur le marché des produits Cet article traite de l’influence des bénéfices privés sur la valeur des entreprises en situation d’oligopole. Les bénéfices privés sont supposés générer des coûts qui sont transmis à travers la structure organisationnelle. Ils créent ainsi des distorsions de prix sur le marché de produits en aval. Nous montrons que cela peut affecter positivement le résultat (c’est-à-dire la valeur de marché) des entreprises puisque l’intensité de la concurrence est réduite par l’augmentation des coûts unitaires. En situation d’oligopole, l’extraction des bénéfices privés peut améliorer les profits tout en induisant une perte de bien-être : cela suggère que la gouvernance d’entreprise ne peut pas être dissociée de la politique de la concurrence, dans les secteurs où l’opportunisme managérial se traduit par des coûts d’exploitation. Classification JEL : G38, D43.
Revisiting the Balassa-Samuelson Model with Markup Variations
Authors: Restout Romain
Published: December 2013

Un réexamen du modèle de Balassa-Samuelson en présence de taux de marge endogènes Cet article s’intéresse au rôle des variations des taux de marge lors de la transmission des chocs de productivité sectorielles et de dépenses publiques au prix relatif des biens non échangeables. Le modèle de Balassa-Samuelson dans lequel le marché des biens est parfaitement concurrentiel suggère que, premièrement, le prix relatif augmente de 1 % suite à une augmentation du rapport des productivités sectorielles de 1 %, et que, deuxièmement, les chocs de dépenses publiques n’ont aucun impact sur le prix relatif à long terme. Appliquant les méthodes de cointégration en panel à un groupe de quinze pays de l’OCDE, nos résultats empiriques rejettent ces deux prédictions. Au contraire, nous montrons qu’une hausse de la productivité relative entre les deux secteurs de 1 % augmente le prix relatif des biens non échangeables de seulement 0.70 % et qu’une augmentation de la part des dépenses publiques dans le PIB de 1 % entraîne une hausse du prix relatif d’environ 1 %. Cet article montre ensuite que ces faits empiriques peuvent être répliqués par un modèle d’économie ouverte à deux secteurs dans lequel les changements de la composition de la demande en biens non échangeables génèrent des variations endogènes des taux de marge. Classification JEL : E20, E62, F31, F41.
Evaluations affiliées, dotations initiales et la surenchère dans les prises de contrôle
Authors: Didier Hounwanou Dégnidé
Published: December 2013

Nous considérons une prise de contrôle dans laquelle les motivations des repreneurs potentiels sont multiples et étudions l’impact du degré d’affiliation de leurs évaluations sur la stratégie optimale. Nous montrons que cet impact dépend du rapport des dotations initiales. Nous trouvons que lorsque les dotations initiales sont symétriques, la stratégie optimale des enchérisseurs est indépendante du degré d’affiliation de leurs évaluations. En revanche, lorsque les dotations initiales sont asymétriques, cet impact dépend du niveau du signal privé de l’enchérisseur. Si les acquéreurs potentiels surenchérissent en présence de dotations initiales, l’étendue de la surenchère décroît avec l’augmentation du degré d’affiliation lorsque le signal privé est inférieur un certain seuil. L’agressivité des enchérisseurs profite à la firme cible dont le revenu espéré augmente avec le degré d’affiliation des évaluations. Classification JEL : D44, D82.
Report of chronic myelogenous leukemia in chronic phase from, Asian Institute of Oncology, Mumbai, 2002-2010
Authors: Bansal Shweta , Advani S.H.
Published: December 2013

Chronic myeloid leukemia (CML) has paradigm shift in its treatment modality after the discovery of targeted therapy Imatinib. At our centre we collected data of 100 consecutive patients over a period of 8 years. The interesting finding in our study was difference in the survival of patients presenting in early chronic phase (81%) versus late chronic phase (16%). Also the patients with primary resistance did poorly compared to the patients who developed secondary resistance to Imatinib.
Report of chronic myeloid leukemia from Indira Gandhi Institute of Medical Sciences, Regional Cancer Center, 2002-2009
Authors: Prasad Rajiv Ranjan , Singh Pritanjali
Published: December 2013

Indira Gandhi Institute of Medical Sciences, Regional Cancer Center was established in 1993. It′s one of the main Health-Care Institution in the state of Bihar. The data of 205 patients was presented in the ICON meeting and 98% of patients were diagnosed in chronic phase. Complete hematological response was seen in 91% of patients in 3 months. A total of 197 (96%) patients were alive at the time of analysis of which 179 (87%) were still in chronic phase with hematological remission.
Chronic myeloid leukemia treatment with Imatinib: An experience from a private tertiary care hospital
Authors: Doval D C , Batra Ullas , Goyal Sumit , Sharma Ajay , Azam Saud , Shirali Rashmi
Published: December 2013

The data presents 75 chronic myeloid leukemia patients diagnosed over a period 6 years i.e. from 2002 to 2008. The most common presentation was splenomegaly and 97% achieved complete hematological response at median duration of 4.3 weeks. The uniqueness of this study is follow-up with molecular response monitoring. Nearly, 30% patients achieved major molecular response (MMoR) by 12 months. 70% of patients achieved MMoR by median time of 60 months. Only 10% of the patient who achieved MMoR by 18 months had lost their responses subsequently.
Report of patients with chronic myeloid leukemia, from hematology clinic, Ahmedabad, Gujarat 2000-2010 at 1 st myelostone meeting: Indian evidence of chronic myelogenous leukemia
Authors: Deotare Uday R , Chudgar Urmish , Bhagat Eva
Published: December 2013

The data of 156 patients was presented from Hematology clinic, Ahmedabad. This hematology clinic caters large number of the population from Gujarat as well as from neighboring states such as Rajasthan and Madhya Pradesh. Out of 156 patients, 146 (94%) patients were in chronic phase. Complete hematological response was seen in 90% of patients and overall survival was 82% at 5 years.
On the quantization of conjugacy classes
Authors: Meinrenken Eckhard
Published: December 2013

Let

G

be a compact, simple, simply connected Lie group. A theorem of Freed-Hopkins-Teleman identifies the level

k\ge 0

fusion ring

R_k(G)

of

G

with the twisted equivariant

K

-homology at level

k+h^v

, where

h^v

is the dual Coxeter number of

G

. In this paper, we will review this result using the language of Dixmier-Douady bundles. We show that the additive generators of the group

R_k(G)

are obtained as

K

-homology push-forwards of the fundamental classes of pre-quantized conjugacy classes in

G

.
Capture pursuit games on unbounded domains
Authors: Alexander S. , Bishop R. , Ghrist Robert
Published: December 2013

We introduce simple tools from geometric convexity to analyze capture-type (or "Lion and Man'') pursuit problems in unbounded domains. The main result is a necessary and sufficient condition for eventual capture in equal-speed discrete-time multi-pursuer capture games on convex Euclidean domains of arbitrary dimension and shape. This condition is presented in terms of recession sets in unit tangent spheres. The chief difficulties lie in utilizing the boundary of the domain as a constraint on the evader's escape route. We also show that these convex-geometric techniques provide sufficient criteria for pursuit problems in non-convex domains with a convex decomposition.
The Big Picard Theorem and other results on Riemann surfaces
Authors: Arés-Gastesi Pablo , Venkataramana Tyakal Nanjundiah
Published: December 2013

In this paper we provide a new proof of the Big Picard Theorem, based on some simple observations about mappings between Riemann surfaces.
Elliptic Dedekind Domains Revisited
Authors: Clark Pete L.
Published: December 2013

We give an affirmative answer to a 1976 question of M. Rosen: every abelian group is isomorphic to the class group of an elliptic Dedekind domain

R

. We can choose

R

to be the integral closure of a PID in a quadratic field extension. In particular, this yields new and – we feel – simpler proofs of theorems of L. Claborn and C.R. Leedham-Green.
The Hesse pencil of plane cubic curves
Authors: Artebani Michela , Dolgachev Igor V.
Published: December 2013

This is a survey of the classical geometry of the Hesse configuration of 12 lines in the projective plane with relation to the inflection points of a plane cubic curve. We also study two

K3

surfaces with Picard number 20 which arise naturally in connection with this configuration.
On the Danilov-Gizatullin Isomorphism Theorem
Authors: Flenner Hubert , Kaliman Shulim , Zaidenberg Mikhail
Published: December 2013

A
Danilov–Gizatullin surface
is a normal affine surface

V=\Sigma_d\setminus S

, which is a complement to an ample section

S

in a Hirzebruch surface

\Sigma_d

. By a surprising result due to Danilov and Gizatullin [DaGi],

V

depends only on

n=S^2

and neither on

d

nor on

S

. In this note we provide a new and simple proof of this Isomorphism Theorem.
Sur la linéarisation des tissus
Authors: Pirio Luc
Published: December 2013

Nous présentons un critère analytique simple qui caractérise les tissus en hypersurfaces linéarisables. Nous en donnons une interprétation géométrique invariante en termes de connexion projective. Nous expliquons que notre approche permet de traiter le problème de la linéarisation d'objets plus généraux que les tissus de codimension 1. Quelques exemples particuliers sont ensuite étudiés en guise d'illustration. Nous terminons par des remarques historiques sur la question abordée ici.
On a theorem of René Thom in Géométrie Finie
Authors: Chaperon Marc , Meyer Daniel
Published: December 2013

We study generalisations of the following fact: a generic compact curve in the plane intersects every straight line in a finite number of points; moreover, for each such curve, this number is bounded. Our results develop the first part of René Thom's 1968 paper on Géométrie finie ("finite geometry'').
On the Cauchy-Kowalevski Theorem
Authors: Chaperon Marc
Published: December 2013

After a short review of the basic properties of analytic functions, we apply the infinite-dimensional theory to get a simple proof of the Cauchy-Kowalevski theorem, in an infinite-dimensional version which seems to be new.
Cohomology of Lie $2$-groups
Authors: Ginot Grégory , Xu Ping
Published: December 2013

We study the cohomology of (strict) Lie 2-groups. We obtain an explicit Bott–Shulman type map in the case of a Lie 2-group corresponding to the crossed module

A \to 1

. The cohomology of the Lie 2-groups corresponding to the universal crossed modules

G\to \mathrm {Aut}(G)

and

G\to \mathrm {Aut}^+(G)

is the abutment of a spectral sequence involving the cohomology of

GL(n,\mathbb Z)

and

SL(n,\mathbb Z)

. When the dimension of the center of

G

is less than 3, we compute these cohomology groups explicitly. We also compute the cohomology of the Lie 2-group corresponding to a crossed module

G\stackrel i \to H

for which

\ker(i)

is compact and Coker

(i)

is connected, simply connected and compact, and we apply the result to the
string
2-group.
Positivity of direct image sheaves a geometric point of view
Authors: Höring Andreas
Published: December 2013

These are extended notes of talks I gave at the workshop "Rencontre positivité'' in Rennes. The aim of these talks was to illustrate the interaction between the geometry of a fibration and the positivity of direct image sheaves. We give numerous examples and an introduction to the Kollár-Viehweg method for proving direct image theorems. As an application, we study the geometry of projective manifolds with nef anticanonical bundle.
Deformations along subsheaves
Authors: Kebekus Stefan , Kousidis Stavros , Lohmann Daniel
Published: December 2013

Let

f \: Y \to X

be a morphism of complex manifolds, and assume that

Y

is compact. Let

\mathcal F \subseteq T_X

be a subsheaf which is closed under the Lie bracket. The present paper contains an elementary and very geometric argument to show that all obstructions to deforming

f

along the sheaf

\mathcal F

lie in

H^1\bigl( Y,\, \mathcal F_Y \bigr)

, where

\mathcal F_Y \subseteq f^*(T_X)

is the image of

f^*(\mathcal F)

under the pull-back of the inclusion map. Special cases of this result include Miyaoka's theory of deformation along a foliation, Keel-McKernan's logarithmic deformation theory and deformations with fixed points.
Extremal properties of (epi)Sturmian sequences and distribution modulo $1$
Authors: Allouche Jean-Paul , Glen Amy
Published: December 2013

Starting from a study of Y. Bugeaud and A. Dubickas (2005) on a question about the distribution of real numbers modulo

1

via
combinatorics on words, we survey some combinatorial properties of (epi)Sturmian sequences and distribution modulo

1

in connection to their work. In particular we focus on extremal properties of (epi)Sturmian sequences, some of which have been rediscovered several times.
A "typical" contraction is unitary
Authors: Eisner Tanja
Published: December 2013

We show that the set of unitary operators on a separable infinite-dimensional Hilbert space is residual (for the weak operator topology) in the set of all contractions. The same holds for unitary operators in the set of all isometries and with respect to the strong operator topology. The continuous versions are discussed as well. These results are applied to the problem of embedding operators into strongly continuous semigroups.
A note on the Chas-Sullivan product
Authors: Laudenbach François
Published: December 2013

We give a finite-dimensional approach to the Chas-Sullivan product on the free loop space of a manifold, which is not necessarily orientable or compact.
A Frobenius theorem for Cartan geometries, with applications
Authors: Melnick Karin
Published: December 2013

We prove analogues for Cartan geometries of Gromov's major theorems on automorphisms of rigid geometric structures. The starting point is a Frobenius theorem, which says that infinitesimal automorphisms of sufficiently high order integrate to local automorphisms. Consequences include a stratification theorem describing the configuration of orbits for local Killing fields in a compact real-analytic Cartan geometry, and an open-dense theorem in the smooth case, which says that if there is a dense orbit, then there is an open, dense, locally homogeneous subset. Combining the Frobenius theorem with the embedding theorem of Bader, Frances, and the author gives a representation theorem that relates the fundamental group of the manifold with the automorphism group.
A short geometric proof of a conjecture of Fulton
Authors: Ressayre Nicolas
Published: December 2013

We give a new geometric proof of a conjecture of Fulton about the Littlewood-Richardson coefficients. This conjecture was first proved by Knutson, Tao and Woodward using the Honeycomb theory. A geometric proof was given by Belkale. Our proof is based on the geometry of the Horn cones.
Sur l'ergodicité du flot géodésique en courbure négative ou nulle
Authors: Coudène Yves
Published: December 2013

Cet article est consacré à la dynamique du flot géodésique sur les variétés à courbure négative ou nulle. Après avoir détaillé quelques résultats de dynamique topologique, on étudie les propriétés ergodiques du flot géodésique sur les variétés de rang un, de trois points de vue différents : d'abord relativement à la mesure riemannienne, ensuite par une approche entropique, enfin par des techniques de généricité.
The stable rank of arithmetic orders in division algebras – an elementary approach
Authors: Schwermer Joachim , Vukadin Ognjen
Published: December 2013

A well-known theorem of Bass implies that

2

defines a stable range for an arithmetic order in a finite-dimensional semisimple algebra over an algebraic number field. The purpose of this note is to provide an independent and elementary proof of this fact for arithmetic orders contained in a finite-dimensional division algebra over an algebraic number field.
Les nœuds de Lorenz
Authors: Dehornoy Pierre
Published: December 2013

This article is a survey on Lorenz knots. We describe the original construction, prove several classical properties, in particular the fact that the closure of a positive braid is a fibered knot, and describe Ghys' correspondence between modular knots and Lorenz knots. We also prove two new properties, namely that following Ghys' correspondence, the images of trivial orbits of the Lorenz flow form a subgroup of the class group, and that the reverse images of an element in the class group and of its inverse are isotopic orbits.