bluuebunny/crossref_metadata_2025 huggingface dataset:
The derivation of diminutives from abstract noun bases in Bulgarian
Authors: Nicolova Ruselina
Published: February 2014

The paper reviews the formal and semantic characteristics of the formation of
diminutives in Bulgarian, where the process affects nouns, adjectives,
numerals, adverbs, verbs and pronouns. The derivation of diminutives from
abstract nouns is analyzed on the basis of material excerpted from blogs and
forums in the Bulgarian Google, in which significant activation of the
process in the language practices of young speakers is observed. The factors
which facilitate or constrain the derivation of diminutives from abstract
nouns are studied, as well as the semantic interaction between diminutive
suffixes and certain semantic components (both denotative and connotative) of
base words.
Reflections on the transformation of the old east Slavic verbal system
Authors: Bjornflaten Jan
Published: February 2014

This contribution treats the overall issue of the transformation of the
system of past tenses that occurred in the development of Old East Slavic to
modern Russian. The divergent opinions concerning the relative as well as the
absolute chronology of these changes are discussed briefly. It is argued that
the actual recordings of imperfects and aorist in large numbers of texts make
it reasonable to assume that the transformation is observable in late
mediaeval texts. The attention is directed towards the development of the
perfect in terms of the l-participle. It is focused on how the l-participle
looses its meaning of current relevance and how it replaces the aorist. In
this way several steps in the transformation of the past tenses can be
observed, allowing for a detailed interpretation of how this radical change
in the history of the Russian language proceeded.
Semantics, analogy and alternation capacity of syntactic structures
Authors: Stanojcic Zivojin
Published: February 2014

Departing from examples found in the language of Njegos and later writers
from a broader area, and on the theoretical premises of cognitive linguistics
as well as on transformational grammar methodology, author is discussing the
syntactic and semantic elements that enable the alternations of conjunctions
gde, sto, kako and da - mutually and with other dependent clauses
conjunctions the semantic basis of which are the notions ?cause?, ?space?,
?manner of an action? and ?object of an action?. According to author, in the
given process, with inner linguistic semantic and analogical factors, the
idiolectal experience of speaker / writer (listener / reader) and his/her
knowledge of language units in the common language of the given society -
have the most important role in the event of language perception.
Teoreticeskie osnovy issledovanija padezej v "Serbskom sintaksise" Danicica - k istorii serbskoj filologii
Authors: Pavlovic Slobodan
Published: February 2014

V nastojascej rabote rassmatrivaetsja teoreticeskie i metodologiceskie osnovy
issledovanija padezej v Serbskom sintaksise (1858) Dzury Danicica. Pervyj
serbskij sintaksis byl napisan v period razvitija sravnitel'no-istoriceskogo
jazykoznanija, kogda lejtmotivom padeznogo sintaksisa javljalos' trebovanie
obnaruzenija obscego znacenija padeza. Do serediny XIX veka v izucenii
padeznoj semantiki dominirovala lokalisticeskaja teorija padezej, soglasno
kotoroj padeznoe znacenie vyvodilos' iz lokal'nyh otnosenij, dostupnyh
neposredstvennomu nabljudeniju. Lokalisty osnovnoj akcent delali na
vyjavlenii prostranstvennyh znacenij padezej. Danicic, ocevidno, byli znakom
s ih postulatami, a takze s logiko-grammaticeskoj teoriej, ob''jasnjajuscej
padez posredstvom sintaksiceskih funkcij. On implicitno razgranicival
grammaticeskie padezi (imenitel'nyj, roditel'nyj i vinitel'nyj), pervicnoj
funkciej kotoryh javljaetsja sintaksiceskaja, i lokal'nye padezi (datel'nyj,
tvoritel'nyj i predloznyj), kotorye v pervuju ocered' oboznacajut
prostranstvennye otnosenija.
On the importance of studying turcizms from the pre-standard epoch of the Serbian language: On the selected material from Stari srpski zapisi i natpisi by Ljubomir Stojanovic
Authors: Petrovic Snezana
Published: February 2014

Turcizms attested in written sources from the pre-standard epoch of the
Serbian language are significant for studying the chronology of this type of
loanwords, as well as for the insight into the history of language and
cultural contacts between the Serbs and the Ottoman Turks. Ljubomir
Stojanovic?s six volume book Stari srpski zapisi i natpisi often presents the
first written evidence of turcizms in the Serbian language. Relevant
lexicographic resources including this material in its corpora, and thus
offering the historical linguistic data for the Turkish loanwords in the
Serbian language, are very few (RJA, STACHOWSKI 1967 and MIHAJLOVIC) and not
always reliable. The paper analyzes sixteen Turkish loanwords from the
Stojanovic?s book, not included in these three manuals: arsin, deserme,
juzeli, kesa, mal, masrapa, milc, tefter (absent from all the manuals),
rakija, sinik (absent from RJA and STACHOWSKI 1967), kavga, kapicija,
kujunzija, ortak, caus, coha (absent from STACHOWSKI 1967). The importance of
studying Turkish loanwords from the pre-standard epoch is presented through
the etymological analysis of the word deserme, hitherto not mentioned in a
single dictionary of the Serbian language, descriptive nor etymological.
La linearisation des enclitiques lies au predicat dans les dialectes de la partie meridionale du Kosovo et Metochie
Authors: Mladenovic Radivoje
Published: February 2014

Ce travail se propose d?analyser les enclitiques verbaux et pronominaux qui
sont lies morphologiquement ou syntaxiquement au predicat dans les dialectes
de la partie meridionale du bassin du Kosovo et Metochie. Dans ces dialectes,
la tendance des enclitiques lies au predicat a se grouper devant ce predicat
a pour consequence l?annulation de la regle slave de linearisation
interdisant qu?un enclitique se trouve au debut de la phrase. La substitution
de la nouvelle linearisation a l?ancienne dans les dialectes etudies a
entraine une absence de variabilite dans les groupes d?enclitiques, ou une
variabilite reduite au minimum. La nouvelle linearisation des enclitiques
lies au predicat s?explique par le contact avec la linearisation des langues
non-slaves et des langues slaves de Macedoine sur une longue periode.
Radiological presentation of neurosarcoidosis
Authors: Stjepanovic Mihailo , Mihailovic-Vucinic Violeta , Jovanovic Dragana , Mijajlovic Milija , Skodric-Trifunovic Vesna , Videnovic-Ivanov Jelica
Published: February 2014

Introduction. In diagnostics of neurosarcoidosis, radiological diagnostic
procedures are available, non-invasive and they contribute significantly to
the diagnosis of this disease. The aim of this paper is to present a brief
overview of the radiological diagnostic methods, their application, and their
importance in daily clinical work with these patients. Radiological
Presentation of Neurosarcoidosis. Magnetic resonance is the method of choice
in diagnostics of this disease. Computed tomography can also be helpful in
patients with contraindications for magnetic resonance, although it is less
precise in assessing the involvement of the periventricular white matter,
hypothalamus, and cranial nerves. The number of lesions and the degree of
involvement of the parenchyma and leptomeninges are better seen by magnetic
resonance than by computed tomography scan. It is important to note that the
magnetic resonance imaging may be normal in patients with neurosarcoidosis,
especially in patients with cranial neuropathy, or in patients treated with
corticosteroids. There is a number of variability in the occurrence of
neurosarcoidosis on radiological images. Conclusion. Radiological procedures
are on the very top of diagnostic pyramid of this disease due to their
availability, non-invasiveness, and precision.
Pemphigus vulgaris and laser therapy: Crucial role of dentists
Authors: Pavlic Verica , Vujic-Aleksic Vesna , Zubovic Nina , Veselinovic Valentina
Published: February 2014

Introduction. Pemphigus vulgaris is a relatively rare, chronic, autoimmune
vesiculobullous disorder characterized by formation of intraepithelial
vesiculae and/or bullae in the skin and mucous membrane. Systemic steroids
are considered to be the standard first-line therapy for pemphigus vulgaris.
However, for patients unresponsive to standard therapy, the new treatment
modalities are being sought. Low-level laser therapy has been accepted as an
alternative or adjunctive treatment modality for many conditions in medicine
and dentistry. Therefore, this study was aimed at presenting the effects of
low-level laser therapy in the treatment of pemphigus vulgaris and to
emphasize the crucial role of dentists in early recognition and diagnosis of
pemphigus vulgaris. Material and Methods. The articles published until May
2013 were obtained from the Medline/PubMed online database, using following
search terms and key words: ?laser therapy? and ?pemphigus vulgaris?,
?low-level laser irradiation? and ?pemphigus vulgaris?, ?lasers? and
?pemphigus vulgaris? and ?pemphigus vulgaris?. Results. Low-level laser
therapy could result in immediate and significant analgesia and improved
wound healing within the observation period and follow-up. Furthermore, a
decrease in patients? discomfort as well as the absence of recurrence of the
pemphigus vulgaris lesions has been claimed. Conclusion. Even though
available literature suggests that low-level laser therapy can be efficiently
used in treatment of oral pemphigus vulgaris, either independently or as a
part of combined therapy approach, these results should be interpreted with
caution since there are no solid evidence-based proofs to provide the
guidelines for the treatment of pemphigus vulgaris with low-level laser
therapy. Therefore, further long-term randomized controlled clinical studies
are necessary in order to give any solid recommendations on the use of
low-level laser therapy in the treatment of pemphigus vulgaris.
Giant liver hemangioma in patient with ileal gastrointestinal stromal tumor
Authors: Antic Vasilije , Micev Marjan , Baskic Danijela , Mladenovic Violeta
Published: February 2014

Introduction. Gastrointestinal stromal tumors are the most common mesenchymal
neoplasms of the gastrointestinal tract. These tumors represent more than 80%
of all mesenchymal tumors found in the gastrointestinal tract, though they
account for only approximately 3% of all gastrointestinal malignancies.
Literature offers case reports, which describe symptomatic gastrointestinal
stromal tumors and they generally represent patients with larger tumors. Case
report. We present the case of a small gastrointestinal stromal tumor in a
40-year-old man, with associated giant liver hemangioma and fever, and with
history of abdominal discomfort and fever. Clinical examination revealed
hepatosplenomegaly, palpable mass in the right lower abdomen, and signs of
neurofibromatosis type 1 (Morbus von Recklinghausen). Computed tomography
revealed a giant tumor in the right lobe of the liver. Magnetic resonance
showed abscess in the hemangioma of the liver. An intestinal tumor was
incidentally found and excised during surgical laparotomy. An intestinal
gastrointestinal stromal tumor was revealed by histopathology and confirmed
by immunohistochemistry. Although a multidisciplinary team proposed surgical
removal of the liver tumor mass, the surgeons decided to follow up the
patient because of a high risk of new intervention. Conclusion. According to
the available data, this is a very rare case of small intestinal
gastrointestinal stromal tumor, with symptoms of fever and giant abscess in
the liver hemangioma.
Ninety years of Duffing’s equation
Authors: Cveticanin Livija
Published: February 2014

In the paper the origin of the so named ?Duffing?s equation? is shown. The
author?s generalization of the equation, her published papers dealing with
Duffing?s equation and some of the solution methods are presented. Three
characteristic approximate solution procedures based on the exact solution of
the strong cubic Duffing?s equation are shown. Using the Jacobi elliptic
functions the elliptic-Krylov-Bogolubov (EKB), the homotopy perturbation and
the elliptic-Galerkin (EG) methods are described. The methods are compared.
The advantages and the disadvantages of the methods are discussed.
Loops in the Sun’s orbit
Authors: Marjanov Milutin
Published: February 2014

Besides translation, spin around its axis and rotation around center of the
Milky Way, the Sun performs relative motion in the solar system Laplacian
plane, also. This motion was anticipated by Newton himself, in his Principia.
The form of the Sun?s orbit is substantially different from the other solar
system bodies? orbits. Namely, the Sun moves along the path composed of the
chain of large and small loops [1, 2, 6, 9]. This chain is situated within
the circular outline with the diameter approximately twice as large as the
Sun?s is. Under supposition that the solar system is stable, the Sun is going
to move along it, in the same region, for eternity, never reitereiting the
same path. It was also shown in this work that velocity and acceleration of
the Sun?s center of mass are completely defined by the relative velocities
and accelerations of the planets with respect to the Sun.
Biologically inspired control and modeling of (bio)robotic systems and some applications of fractional calculus in mechanics
Authors: Lazarevic Mihailo
Published: February 2014

In this paper, the applications of biologically inspired modeling and control
of (bio)mechanical (non)redundant mechanisms are presented, as well as newly
obtained results of author in mechanics which are based on using fractional
calculus. First, it is proposed to use biological analog-synergy due to
existence of invariant features in the execution of functional motion.
Second, the model of (bio)mechanical system may be obtained using another
biological concept called distributed positioning (DP), which is based on the
inertial properties and actuation of joints of considered mechanical system.
In addition, it is proposed to use other biological principles such as:
principle of minimum interaction, which takes a main role in hierarchical
structure of control and self-adjusting principle (introduce local
positive/negative feedback on control with great amplifying), which allows
efficiently realization of control based on iterative natural learning. Also,
new, recently obtained results of the author in the fields of stability,
electroviscoelasticity, and control theory are presented which are based on
using fractional calculus (FC).
Active control of mechanical structures in research and education
Authors: Nestorovic Tamara
Published: February 2014

Several crucial phases of the overall approach to development and design of
smart structures are outlined in this paper. They are focused on control of
lightweight mechanical structures with respect to active vibration and noise
attenuation using piezoelectric actuators and sensors. The research
experience and growing interest in development of smart structures have
motivated introduction of courses on smart structures at universities, which
are being studied extensively and with great interest by young researchers
and students. Some of the author?s experiences regarding education in this
field will be addressed as well.
Boundary layer flow and heat transfer in a micropolar fluid past a permeable at plate
Authors: Hossain Mosharf , Roy Nepal , Hossain Anwar
Published: February 2014

An analysis is performed to study the shear stress, the couple-stress and
heat transfer characteristics of a laminar mixed convection boundary layer
flow of a micropolar fluid past an isothermal permeable plate. The governing
nonsimilar boundary layer equations are analyzed using the (i) series
solution for small ?, (ii) asymptotic solution for large ? and (iii)
primitive-variable formulation and the stream function formulation are being
used for all ?. The effects of the material parameters, such as, the vortex
viscosity parameter, K, and the transpiration parameter, s, on the shear
stress, the couple-stress and heat transfer have been investigated. The
agreement between the solutions obtained from the stream-function
formulation and the primitive-variable formulation is found to be excellent.
Effect of cultivar and year on phyllochron in winter barley
Authors: Przulj Novo , Momcilovic Vojislava
Published: February 2014

Development and growth of leaves in cereals significantly affects grain yield
since dry matter accumulation depends on the leaf area that intercepts light.
Phyllochron (PHY) is defined as time interval between the emergences of
successive leaves on the main stem. The aim of this study was to determine
the effect of year and cultivar on phyllochron in winter barley. Twelve
cultivars of winter barley differing in origin and time of anthesis were
tested during six growing seasons (GS), from 2002/03 to 2007/08. The highest
PHY across GSs was determined in the two-rowed cultivar Cordoba (81.6?Cd) and
the lowest in the two-rowed cultivar Novosadski 581 (71.0?Cd). The early
cultivars had fast leaf development, the medium cultivars medium and the late
cultivars slow development, 72.5?Cd, 75.6?Cd and 78.9?Cd, respectively. The
tested cultivars showed significant variability in the PHY, which can be
used for selecting most adaptable genotypes for specific growing conditions.
Prepregnancy SHBG Concentrations and Risk for Subsequently Developing Gestational Diabetes Mellitus
Authors: Hedderson Monique M. , Xu Fei , Darbinian Jeanne A. , Quesenberry Charles P. , Sridhar Sneha , Kim Catherine , Gunderson Erica P. , Ferrara Assiamira
Published: February 2014

OBJECTIVE

Lower levels of sex hormone–binding globulin (SHBG) have been associated with increased risk of diabetes among postmenopausal women; however, it is unclear whether they are associated with glucose intolerance in younger women. We examined whether SHBG concentrations, measured before pregnancy, are associated with risk of gestational diabetes mellitus (GDM).

RESEARCH DESIGN AND METHODS

This was a nested case-control study among women who participated in the Kaiser Permanente Northern California Multiphasic Health Check-up examination (1984–1996) and had a subsequent pregnancy (1984–2009). Eligible women were free of recognized diabetes. Case patients were 256 women in whom GDM developed. Two control subjects were selected for each case patient and were matched for year of blood draw, age at examination, age at pregnancy, and number of intervening pregnancies.

RESULTS

Compared with the highest quartile of SHBG concentrations, the odds of GDM increased with decreasing quartile (odds ratio 1.06 [95% CI 0.44–2.52]; 2.33 [1.07–5.09]; 4.06 [1.90–8.65]; P for trend < 0.001), after adjusting for family history of diabetes, prepregnancy BMI, race/ethnicity, alcohol use, prepregnancy weight changes, and homeostasis model assessment of insulin resistance. Having SHBG levels below the median (<64.5 nmol/L) and a BMI ≥25.0 kg/m2 was associated with fivefold increased odds of GDM compared with normal-weight women with SHBG levels at or above the median (5.34 [3.00–9.49]).

CONCLUSIONS

Low prepregnancy SHBG concentrations were associated with increased risk of GDM and might be useful in identifying women at risk for GDM for early prevention strategies.
In vivo assessment of a multicomponent and nanostructural polymeric matrix as a delivery system for antimicrobials and bone morphogenetic protein-2 in a unicortical tibial defect in goats
Authors: Rousseau Marjolaine , Anderson David E. , Lillich James D. , Apley Michael D. , Jensen Peder J. , Biris Alexandru S.
Published: February 2014

Objective—To determine the response of cortical bone to a multicomponent and nanostructural polymeric matrix as a drug delivery system for enhancing bone healing.

Animals—20 healthy adult crossbred goats.

Procedures—A 3.5-mm-diameter unicortical defect was created in each tibia (day 0), and goats (4 goats/group) were treated as follows: not treated (control group), grafted with the matrix, grafted with antimicrobial (tigecycline and tobramycin)–impregnated matrix, grafted with recombinant human bone morphogenetic protein type 2 (rhBMP-2)–impregnated matrix, or grafted with antimicrobial- and rhBMP-2–impregnated matrix. Elution kinetics of antimicrobials was monitored through plasma concentrations. Bone response was assessed with radiographic scoring (days 1 and 30) and dual-energy x-ray absorptiometry (days 1, 14, and 30). Goats were euthanized on day 30, and histomorphologic analysis was performed. Categorical variables were analyzed with a generalized linear model, and continuous variables were analyzed with an ANOVA.

Results—Plasma antimicrobial concentrations indicated continued release throughout the study. Radiography and dual-energy x-ray absorptiometry did not reveal significant differences among treatments on day 30. Periosteal reactions were significantly greater surrounding bone defects grafted with rhBMP-2–impregnated matrix than those not treated or grafted with matrix or with antimicrobial-impregnated matrix; periosteal reactions were similar in bone defects grafted with rhBMP-2–impregnated matrix and antimicrobial- and rhBMP-2–impregnated matrix.

Conclusions and Clinical Relevance—The matrix served as an antimicrobial delivery system and stimulated bone proliferation when rhBMP-2 was present. Antimicrobial and rhBMP-2 can be used concurrently, but the presence of antimicrobials may affect the performance of rhBMP-2.
Morphological variation of lactuca serriola l. achenes as a function of their geographic origin
Authors: Křístková Eva , Lebeda Aleš , Novotná Alžběta , Doležalová Ivana , Berka Tomáš
Published: February 2014

The morphological characteristics of achenes of Lactuca serriola represented by 34 local populations from Slovenia and 12 local populations from Sweden were studied in relation to their eco-geographical conditions. In total, eight quantitative morphological characters were evaluated: length and width of achene body; index length/width of achene body; number of ribs on achene body; length of beak; length of pappus bristles; pappus area and discus diameter. NestedANOVAanalysis indicated significant differences in length and width of achene body, length of pappus bristles, and pappus area between Slovenian and Swedish populations. Achenes from Slovenia were longer, wider and possessed longer pappus bristles than achenes from Sweden. Among geographical factors, latitude had the greatest impact on the morphological characters evaluated. Significant differences in seven parameters were also found between populations within countries and between samples within populations. It is probable that this variation has a genetic basis with sufficient variation within populations to permit continued selection.
Some peltigericolous microlichens from southern Poland
Authors: Czarnota Paweł , Hernik Emil
Published: February 2014

Ten microlichens growing on more or less moribund thalli of several terricolous Peltigera spp. are reported from Wyżyna

Śląsko-Krakowska upland in southern Poland. The list includes: Absconditella delutula, Agonimia vouauxii, Bacidia pycnidiata (for the first time as a lichenicolous lichen), Bacidina chloroticula, Placynthiella dasea, Scutula sp., Steinia geophana, Thelocarpon epibolum, Vezdaea aestivalis and V. retigera. Notes on the taxonomy, ecology and distribution of each species are briefly provided and Polish samples discussed.
Emerging Professionalism in the Event Industry: A Practitioner's Perspective
Authors: Brown Steve
Published: February 2014

Since the 1980s the event industry has seen unprecedented growth in the number of festivals and events that are staged. Parallel to this growth has been a rapid growth and development in the number of researchers and practitioners investigating and writing about festivals and events.
This article is an exploration (and an Australian practitioner's perspective) of the dynamics of the contemporary event industry as it strives to be recognized as a profession and the influences, impacts. and barriers that face the event practitioner seeking to professionalize. These influences,
impacts and barriers include: the shift from an event management-predominant to an event design-predominant paradigm; the increasing priority for economic event outcomes; the advent of an overarching risk assessment and management regime; and the role of the practitioner academic.
Confinement dependence of electro-catalysts for hydrogen evolution from water splitting
Authors: Lindgren Mikaela , Panas Itai
Published: February 2014

Density functional theory is utilized to articulate a particular generic deconstruction of the electrode/electro-catalyst assembly for the cathode process during water splitting. A computational model was designed to determine how alloying elements control the fraction of H2 released during zirconium oxidation by water relative to the amount of hydrogen picked up by the corroding alloy. This model is utilized to determine the efficiencies of transition metals decorated with hydroxide interfaces in facilitating the electro-catalytic hydrogen evolution reaction. A computational strategy is developed to select an electro-catalyst for hydrogen evolution (HE), where the choice of a transition metal catalyst is guided by the confining environment. The latter may be recast into a nominal pressure experienced by the evolving H2 molecule. We arrived at a novel perspective on the uniqueness of oxide supported atomic Pt as a HE catalyst under ambient conditions.
RESEARCH OF PROPERTIES OF SPRAYED COATINGS ON THE ALUMINIUM ALLOYS / ALIUMINIO LYDINIŲ PLAZMINIO PURŠKIMO TYRIMAS
Authors: Lukauskaitė Raimonda , Kovaliov Denis , Černašėjus Olegas
Published: February 2014

In article the cathodic cleaning processes of aluminum alloyAW 5754 and cleaned substrate surface coating by plasmawith Ni-Cr-Fe-Si powder were researched. Aluminium substrateroughness after cathodic treatment at different cathodic treatmentparameters was established during the experiments. During theinvestigation a comparison of the calculated medium power1.6 to 9 kW plasma torch voltage-current characteristics withthe experimental results was made. The optimized parametersof aluminium cathode substrate cleaning process were selected;porosity and morphology of plasma sprayed nickel-based coatingwere determined.

Santrauka

Straipsnyje nagrinėjami aliuminio lydinio AW 5754 katodinio valymo procesai ir nuvalyto substrato paviršiaus dengimas plazminiu būdu Ni-Cr-Si-Fe danga. Eksperimentinių bandymų metu nustatytas aliuminio substrato šiurkštumas po katodinio valymo, esant skirtingiems katodinio valymo parametrams. Tyrimo metu buvo palygintos apskaičiuotos vidutinės galios 1,6–9 kW plazmotrono voltamperinės charakteristikos su eksperimentiniais rezultatais. Parinkti aliuminio substrato optimalūs katodinio valymo proceso parametrai ir nustatytas plazminiu būdu užpurkštos nikelio pagrindo dangos porėtumas ir morfologija.
RESEARCH OF CUTTING DATA FOR DIAMOND WIRE CUTTING OF HARD MATERIALS / KIETŲJŲ MEDŽIAGŲ PJOVIMO DEIMANTINE VIELA PJOVIMO REŽIMŲ TYRIMAS
Authors: Vilkelis Rimantas , Mokšin Vadim
Published: February 2014

The paper presents results of measurements of surface roughnessof clear, colorless sapphire (Al2O3 – corundum modification,aluminum oxide) crystal cut by diamond wire. The diamond wirecutting machine RTS 440 was used for research. Only verticalfeedrate of wire was varied while the wire speed, tension, cuttingmethod and cutting angle were constant. Results are presentedas graphs of dependence of arithmetic average surface profiledeviation Ra on feedrate of the diamond wire. Sapphire plateflatness measurement results are presented as well. Sapphire platecutting time dependence on feedrate of the wire was established.The most optimal feedrate range was obtained.

Santrauka

Straipsnyje pateikti skaidraus, bespalvio safyro (Al2O3 – korundo atmaina, aliuminio oksidas) kristalo, supjaustyto deimantine viela, paviršiaus šiurkštumo matavimo rezultatai. Tyrimui buvo naudotos deimantinės vielos pjaustymo staklės RTS 440. Bandymai buvo atliekami keičiant deimantinės vielos darbinę pastūmą ir nekeičiant vielos greičio, įtempimo, pjovimo būdo ir įsipjovimo kampo. Rezultatai pateikti kaip safyro paviršiaus vidutinio aritmetinio profilio nuokrypio Ra priklausomybės nuo vertikaliosios pastūmos grafikai. Taip pat pateikti atpjautos safyro plokštelės plokštumo matavimo rezultatai. Nustatyta safyro plokštelės atpjovimo laiko nuo pastūmos priklausomybė. Nustatytas optimaliausias pastūmų intervalas, kuriam esant gaunamas mažiausias paviršiaus šiurkštumas ir didžiausias našumas.
RESEARCH OF PRELIMINARY PLASTIC DEFORMATION VALUE INFLUENCE ON ARTIFICIAL AGEING DYNAMICS
Authors: Chumakov E. , Gadzevičius Irmantas , Shukbarova S. , Gargasas Justinas
Published: February 2014

Product quality improvement in the machine manufacturing industryis tightly associated with the introduction of new materialsand technologies. Aluminium alloys are widely used in differentmachine production industries. This paper presents the researchresults of aluminium alloy AD31 (AW 6060). Aluminium alloy isa part of the group subject to deformation and artificial aging. Theintensity of the aging process occurring after the crystallizationdepends on various conditions such as volumetric temperaturegradient during crystallization, alloy overheat temperature, itsduration of exposure, dispensing, and crystallization.
INVESTIGATION OF SOLID PARTICLES UNDER THE ACTION OF AN ACOUSTIC FIELD / SKYSTYJE ESANČIŲ KIETŲJŲ DALELIŲ SĄVEIKOS AKUSTINIAME LAUKE TYRIMAS
Authors: Mykolaitis Egidijus , Styra Andrius , Vekteris Vladas
Published: February 2014

Iron is one of the most common elements in ground water. Bythe HN 24:2003 iron concentration in water can‘t be higher than200 μg/l. Water treatment with an acoustic field is a very relevanttopic. Acoustic field is widely used in industrion, medicine,chemical industry and manufacturing. When water is affectedby ultrasound, physical-chemical processes begin. Ultrasoundvibrations lead to dispersion, degasation and coagulation. Ironparticles connect to each other when distance between them istwo times bigger then their own radius. R = 2R. And if thisprocess continues particles connect one by one. In this article teststand and methodics using ultrasonic piezoceramic are shown.

Santrauka

Geležis – dažniausiai požeminiuose vandenyse aptinkama priemaiša, kuri prastina geriamojo vandens savybes, todėl būtina bendrosios geležies koncentraciją sumažinti iki 0,2 mg/l. Vienas iš geležies šalinimo būdu yra paremtas ultragarso panaudojimu. Straipsnyje glaustai aptarti bendrosios geležies būviai vandenyje, jos šalinimo metodai ir pateikta eksperimentinė metodika. Eksperimentas atliktas naudojant skirtingų dažnių garso bangas nuo 8 kHz iki 20 kHz diapazone. Akustinio lauko daromai įtakai nustatyti, naudojant skirtingų dažnių garso bangas, buvo panaudoti trys skirtingi vandens debitai. Iš gautų rezultatų suformuluotos išvados.
THE INVESTIGATION OF MECHANICAL PROPERTIES OF WELDING QUALITY OF R65 TYPE RAIL / R65 TIPO BĖGIO TERMITINIO VIRINTINĖS JUNGTIES MECHANINIŲ SAVYBIŲ TYRIMAS
Authors: Rauduvė Mindaugas , Rudzinskas Vitalijus
Published: February 2014

This article is about the aluminothermic welding quality ofrail joints, using different parameters. The thermit portion andpreheat time estimated for quality of welded joints as well asthe mechanical characteristics of aluminothermic welds in railshave been examined.

Santrauka

Šiame straipsnyje nagrinėjama termitiniu būdu ir skirtingais parametrais suvirintų bėgių kokybė. Nustatyta termitinio suvirinimo mišinio kiekio ir pakaitinimo laiko įtaka virintinių jungčių kokybei, ištirtos termitiniu būdu suvirintų bėgių siūlių mechaninės savybės.
STATISTICAL ANALYSIS OF THE FLEXOGRAPHIC PRINTING QUALITY / FLEKSOGRAFINĖS SPAUDOS PRODUKCIJOS KOKYBĖS ANALIZĖ STATISTINIAIS METODAIS
Authors: Matulaitienė Agnė , Jurkonis Eugenijus
Published: February 2014

Analysis of flexographic printing output quality was performedusing SPSS software package. Samples of defected productswere collected for one year in the existing flexographic printingcompany. Any defective products examples were described indetails and analyzed. It was decided to use SPPS software packagebecause of large amount of data. Data flaw based hypotheseswere formulated which were approved or rejected in analysis.The results obtained are presented in the charts.

Santrauka

Fleksografinės spaudos produkcijos kokybės analizė atlikta naudojant SPSS programinį paketą. Brokuotos produkcijos pavyzdžiai buvo renkami veikiančioje fleksografinės spaudos įmonėje vienerius metus. Kiekvienas brokuotos produkcijos pavyzdys buvo išsamiai aprašytas ir išanalizuotas. SPPS programinį paketą buvo nuspręsta naudoti dėl didelio gautų duomenų kiekio. Remiantis duomenų srautu, suformuluotos ir iškeltos hipotezės, kurios analizės metu buvo patvirtintos arba atmestos. Gauti rezultatai pateikti grafikuose.
EXPERT SYSTEM TO CREATE BUILDING DESIGN SCHEME / EKSPERTINĖ SISTEMA STATINIO KONSTRUKCINEI SCHEMAI KURTI
Authors: Steckevičius Žilvinas , Mačiūnas Darius , Glėbienė Elena , Birbalaitė Renata
Published: February 2014

In this paper the technology for creation of optimal design scheme for building is presented. Optimization of design scheme is based on genetic algorithm. Rectangular perimeter of single-storey structure with a linear load in all its locations is investigated. In such case, finite element, finite difference and other methods are not necessary – in order to evaluate the stress of design elements it is sufficient to use formulas of material strength.

Santrauka

Šiame darbe apžvelgta optimalios konstrukcinės schemoskūrimo technologija, naudojant genetinį optimizavimo algoritmą.Nagrinėjama stačiakampio perimetro vieno aukšto konstrukcijasu tolygiąja apkrova visose jos vietose. Šiuo atveju nebūtina naudotibaigtinių elementų, baigtinių skirtumų ar kitų metodų. Norintįvertinti konstrukcijos elementų įtempius, užtenka medžiagųatsparumo formulių.
Former des étudiants LEA à la traduction technique et scientifique : un défi didactique ?
Authors: Lavault-Olléon Élisabeth
Published: February 2014

Cette communication présente une didactique de la traduction spécialisée adaptée aux étudiants de Langues étrangères appliquées, aux niveaux Licence et Maîtrise, dans le cadre d’une préparation au DESS « Traduction spécialisée et production de textes multilingues » de l’Université Stendhal.
Approche culturelle et civilisationniste de la classe de langue dans les sections de techniciens supérieurs
Authors: Barat Pascale , Houdebert Henri , Rebillon Monique
Published: February 2014

En premier lieu, Henri Houdebert souligne que les documents authentiques utilisés comme support de l’enseignement de l’anglais en classes de BTS, sauf à n’être que techniques à 100 % (et encore), sont tous investis d’une charge culturelle variable qu’il importe de faire saisir à nos élèves pour leur permettre de dépasser le seuil de la seule compréhension littérale. Appliquant cette réflexion aux choix de documents adéquats, Monique Rébillon expose en deuxième lieu la démarche comparative adoptée avec succès pour une classe d’électrotechniciens. En troisième partie, Pascale Barat illustre le même propos central en détaillant l’utilisation féconde du point de vue culturel de documents aussi simples qu’une demande d’emploi ou un curriculum vitae. Seule une expression à visée culturelle bien maîtrisée permet de remotiver des étudiants peu enclins, a priori, à s’intéresser à la langue anglaise.
The impact of foreign R&D activities on the MNC’s performance at home: evidence from the case of Swiss manufacturing firms
Authors: Hamida Lamia Ben , Piscitello Lucia
Published: February 2014

This paper examines the impact of the MNCs’ internationalisation of R&D activities on their performances/productivity at home. Specifically, using detailed firm-level data for Swiss manufacturing firms, we find that foreign R&D activity of Swiss MNCs is a valuable source of knowledge which improves their productivity performance at home, but only when firms invest in knowledge-seeking activities. Conversely, R&D activities conducted abroad with knowledge-exploiting purposes seem to weaken the MNC’s productivity at home.JEL codes : F23, O33, O40
Les enjeux de sécurité dans la relation gazière UE-Russie
Authors: Locatelli Catherine
Published: February 2014

La sécurité gazière de l’Union européenne émerge depuis le début des années 2000 comme un élément clé de sa politique énergétique. Les relations contractuelles basées sur les contrats de long terme durant les années 1970 et 1980 ont produit une relative stabilité dans les échanges énergétiques entre l’UE et ses fournisseurs gaziers. Mais depuis le milieu des années 1990, le processus d’ouverture à la concurrence des industries gazières de l’UE ainsi que la volonté de créer un marché unique du gaz conduisent à des réorganisations en profondeur de ce secteur. Dans ce contexte, l’UE entend redéfinir la gestion de ses relations avec ses principaux fournisseurs en tentant d’imposer son « modèle » basé sur la concurrence, la dé-intégration des entreprises de réseau et la privatisation. Le « modèle de l’UE » n’est pas celui que la Russie tend à mettre en œuvre dans son secteur gazier en dépit d’importants changements. La logique basée sur l’utilisation privilégiée d’un instrument étatique s’oppose au multilatéralisme et aux principes concurrentiels de l’UE qui prônent l’ouverture, la dé-intégration voire la privatisation du secteur gazier. Le pouvoir normatif de l’UE se trouve ainsi en contradiction avec l’environnement institutionnel du secteur énergétique russe.
Les déterminants de l’innovation : une analyse comparative service/industrie à partir des formes d’innovation développées
Authors: Mongo Michelle
Published: February 2014

Cet article étudie l’effet des déterminants de l’innovation sur la capacité à innover et sur les formes d’innovation (technologique et non technologique) développées et compare les comportements au sein du secteur des services et de l’industrie. Les données sont issues de l’enquête communautaire sur l’innovation CIS2008. Le modèle estimé est un probit avec sélection issu du cadre d’analyse proposé par Heckman (1979) et raffiné par Van de Ven and Van Praag (1981) dans lequel la première équation explique la capacité à mener des activités d’innovation et la seconde le choix entre les différentes formes d’innovation (technologique et/ou non technologique). Les résultats montrent que les déterminants de la capacité à innover sont similaires au sein des services et de l’industrie, les différences s’expliquant plus par l’importance relative des différentes formes d’innovation développées. Ces résultats posent la question de la pertinence des politiques actuelles d’innovation, principalement tournée vers la promotion de la R&D. L’auteur propose la prise en compte de l’intensité en connaissances des activités et des formes d’innovation pour ce type de politique et suggère une intervention plus spécifique à l’égard des activités à faible contenu technologique et principalement innovante en non-technologie (services intellectuels par exemple).
Choix technologiques des firmes et équilibres de consommation contestée
Authors: Piluso Nicolas
Published: February 2014

Le présent article a pour objet de modéliser le problème d’entente entre producteurs et consommateurs que posent certains choix de technologie de production. Partant d’un modèle d’équilibre général en concurrence parfaite, nous montrons qu’il existe dans certaines configurations une asymétrie entre les consommateurs et les firmes. Il en résulte que l’économie ne peut atteindre spontanément l’optimum. Dans les cas de consommation « répugnante », le retour de l’optimum passe par la suppression du marché.
Numerical Solution for a Transient Temperature Distribution on a Finite Domain Due to a Dithering or Rotating Laser Beam
Authors: Tan Tsuwei , Zhou Hong
Published: February 2014

The temperature distribution due to a rotating or dithering Gaussian laser beam on a finite body is obtained numerically. The authors apply various techniques to solve the nonhomogeneous heat equation in different spatial dimensions. The authors’ approach includes the Crank-Nicolson method, the Fast Fourier Transform (FFT) method and the commercial software COMSOL. It is found that the maximum temperature rise decreases as the frequency of the rotating or dithering laser beam increases and the temperature rise induced by a rotating beam is smaller than the one induced by a dithering beam. The authors’ numerical results also provide the asymptotic behavior of the maximum temperature rise as a function of the frequency of a rotating or dithering laser beam.
Developing a Chance-Constrained Free Disposable Hull Model for Selecting Third-Party Reverse Logistics Providers
Authors: Azadi Majid , Saen Reza Farzipoor
Published: February 2014

Demand of third-party reverse logistics (3PL) provider becomes an increasingly significant topic for corporations looking for enhanced customer service and cost reduction. To select the best 3PL providers in the presence of stochastic data, this paper proposes an innovative approach which is based on free disposable hull (FDH). FDH model is one of the classical models in data envelopment analysis (DEA). In many real world applications, data are often stochastic. A successful approach to address uncertainty in data is to replace deterministic data via random variables, leading to chance-constrained DEA. In this paper, a chance-constrained FDH (CCFDH) model is developed and also its deterministic equivalent which is a nonlinear program is derived. Furthermore, it is shown that the deterministic equivalent of the CCFDH model can be converted into a quadratic program. In addition, sensitivity analysis of the CCFDH model is discussed with respect to changes on parameters. Finally, a numerical example demonstrates the application of the proposed model in the field of 3PL provider selection.
Distinct Conformations of the Chemokine Receptor CCR4 with Implications for Its Targeting in Allergy
Authors: Viney Jonathan M. , Andrew David P. , Phillips Rhian M. , Meiser Andrea , Patel Pallavi , Lennartz-Walker Melissa , Cousins David J. , Barton Nicholas P. , Hall David A. , Pease James E.
Published: February 2014

CC chemokine receptor 4 (CCR4) is expressed by Th2 and regulatory T cells and directs their migration along gradients of the chemokines CCL17 and CCL22. Both chemokines and receptor are upregulated in allergic disease, making CCR4 a therapeutic target for the treatment of allergy. We set out to assess the mechanisms underlying a previous report that CCL22 is a dominant ligand of CCR4, which may have implications for its therapeutic targeting. Human T cells expressing endogenous CCR4 and transfectants engineered to express CCR4 were assessed for receptor function, using assays of calcium release, chemotaxis, receptor endocytosis, and ligand binding. Despite the two ligands having equal potency in calcium flux and chemotaxis assays, CCL22 showed dominance in both receptor endocytosis assays and heterologous competitive binding assays. Using two different CCR4-specific Abs, we showed that CCR4 exists in at least two distinct conformations, which are differentially activated by ligand. A major population is activated by both CCL17 and CCL22, whereas a minor population is activated only by CCL22. Mutation of a single C-terminal residue K310 within a putative CCR4 antagonist binding site ablated activation of CCR4 by CCL17, but not by CCL22, despite having no effect on the binding of either ligand. We conclude that CCL17 and CCL22 are conformationally selective ligands of CCR4 and interact with the receptor by substantially different mechanisms. This finding suggests that the selective blockade of CCR4 in allergy may be feasible when one CCR4 ligand dominates, allowing the inhibition of Th2 signaling via one ligand while sparing regulatory T cell recruitment via another.
Mutational and Structural Analysis of KIR3DL1 Reveals a Lineage-Defining Allotypic Dimorphism That Impacts Both HLA and Peptide Sensitivity
Authors: O’Connor Geraldine M. , Vivian Julian P. , Widjaja Jacqueline M. , Bridgeman John S. , Gostick Emma , Lafont Bernard A. P. , Anderson Stephen K. , Price David A. , Brooks Andrew G. , Rossjohn Jamie , McVicar Daniel W.
Published: February 2014

Killer Ig-like receptors (KIRs) control the activation of human NK cells via interactions with peptide-laden HLAs. KIR3DL1 is a highly polymorphic inhibitory receptor that recognizes a diverse array of HLA molecules expressing the Bw4 epitope, a group with multiple polymorphisms incorporating variants within the Bw4 motif. Genetic studies suggest that KIR3DL1 variation has functional significance in several disease states, including HIV infection. However, owing to differences across KIR3DL1 allotypes, HLA-Bw4, and associated peptides, the mechanistic link with biological outcome remains unclear. In this study, we elucidated the impact of KIR3DL1 polymorphism on peptide-laden HLA recognition. Mutational analysis revealed that KIR residues involved in water-mediated contacts with the HLA-presented peptide influence peptide binding specificity. In particular, residue 282 (glutamate) in the D2 domain underpins the lack of tolerance of negatively charged C-terminal peptide residues. Allotypic KIR3DL1 variants, defined by neighboring residue 283, displayed differential sensitivities to HLA-bound peptide, including the variable HLA-B*57:01–restricted HIV-1 Gag-derived epitope TW10. Residue 283, which has undergone positive selection during the evolution of human KIRs, also played a central role in Bw4 subtype recognition by KIR3DL1. Collectively, our findings uncover a common molecular regulator that controls HLA and peptide discrimination without participating directly in peptide-laden HLA interactions. Furthermore, they provide insight into the mechanics of interaction and generate simple, easily assessed criteria for the definition of KIR3DL1 functional groupings that will be relevant in many clinical applications, including bone marrow transplantation.
A NEGLECTED ZOONOSIS IN ALBANIA: WHY ECHINOCOCCOSIS IS BECOMING A SURGEON’S EXCLUSIVITY?
Authors: Pilaca Arben , Vyshka Gentian , Pepa Arben , Shytaj Kastriot , Shtjefni Valentin , Boçari Arben , Beqiri Arben , Kraja Dhimitër
Published: February 2014

Echinococcosis is an endemic zoonosis in the Mediterranean area, with Albania interested actually to a level that is becoming a public health concern. Authors describe preliminary data from the only tertiary (university) medical facility of Albania, positioned in the capital of the country (Tirana), with 333 new cases diagnosed and treated during the period 2005 – 2011. Out of all these 333 new cases an impressive majority of 91% had a surgical treatment right from the first admission, rendering the disease almost a surgical exclusivity. Even more, 80% of all patients from the study group were hospitalized straightforwardly in surgical wards, with options of surgical intervention’s percentages outrunning figures from other sources and authors of the same geographical area. Such a situation, together with a very important level of patients’ origin from highly urbanized areas such as those of the capital, suggest the necessity of well-organized interventions, among which might be the mandatory notification of all human cases with Echinococcus infection.