bluuebunny/crossref_metadata_2025 huggingface dataset:
Subverting and Negotiating Risk Assessment: A Case Study of the LSI in a Canadian Youth Custody Facility
Authors: Ballucci Dale
Published: March 2012

This case study examines probation officers and local agents' strategies and approaches to completing and applying the Level of Supervision Inventory (LSI) to female young offenders at Youth House, an open-custody facility in central Canada. Both the probation officers and Youth House staff express concerns about the LSI and employ strategies to subvert its almost deterministic impact through discretionary practices. I show that the LSI's risk calculations are subverted by both Youth House staff and, to a lesser extent, the probation officers, thereby reducing the LSI's importance in the management of offenders. Lastly, I find that probation officers utilize the LSI to externalize responsibility. This tool provides them with a means by which to justify and rationalize their management decisions. This study supports not only the growing body of literature that examines risk in practice but also contributes to increasing knowledge on how risk rationales on the macro-level translate to practices at the local level.
“The baby-boom is over and the ageing shock awaits”: populist media imagery in news-press representations of population ageing
Authors: Lundgren Anna Sofia , Ljuslinder Karin
Published: March 2012

From an international perspective, media representations of population ageing have been described as apocalyptic in character. In this article, we analyse the way population ageing is represented in three Swedish newspapers: Aftonbladet, Dagens Nyheter and Västerbottens-Kuriren. The aim is to investigate Swedish news-press representations of population ageing and the old age identities that they offer. We conduct qualitative analyses of the articulations between the verbal content and the use of illustrations, metaphorical language, headlines and captions using the concepts offered by discourse theory. The analysis of the material shows that the studied newspapers firmly position population ageing within a wider discourse of political economy and as a threat to the concept of welfare. Growth is promoted as a self-evident means for adjusting to the expected threat. Illustrations and metaphorical language helped to constitute population ageing as a serious, dichotomised (e.g. young vs. Old) and emotive (e.g. addressing anxiety and ear) problem. The analyses also show how the representations of population ageing bear some populist features, and we argue that such features support a de-politicisation of the phenomenon population ageing.
Cadmium Accumulation in Tissues of Sarotherodon melanotheron (Rüppel, 1852) from the Aby Lagoon System in Côte d’Ivoire
Authors: Cyrille Yapi Dope Armel , Victor Kouame , Sanogo Tidou Abiba , Boukary Sawadogo , Joseph Wethe
Published: March 2012

This study assessed the concentrations of cadmium in the gills, livers and muscles of a commercially important tilapia fish (Sarotherodon melanotheron) from Aby Lagoon in Adiaké, Côte d’Ivoire, between January and December, 2010. The organisms were grouped into two composite samples (juvenile and adult) of five individuals. Levels of cadmium were determined in tissues using Perkin-Elmer (AAnalyst 200) Atomic Absorption Spectrophotometry (AAS) after a digestion method. Fish muscle appeared to have a significantly higher tendency to accumulate cadmium (1.19–5.18 µg/g dw) while gills and livers had minimum concentrations (0.07–1.32 and 0.12–1.25 µg/g dw). This study has revealed that the concentrations of Cd in Sarotherodon melanotheron muscle tissue were above the maximum acceptable concentrations for human consumption, thus precautions need to be taken in order to prevent future contamination.
Modulation Role of Abscisic Acid (ABA) on Growth, Water Relations and Glycinebetaine Metabolism in Two Maize (Zea mays L.) Cultivars under Drought Stress
Authors: Zhang Lixin , Gao Mei , Hu Jingjiang , Zhang Xifeng , Wang Kai , Ashraf Muhammad
Published: March 2012

The role of plant hormone abscisic acid (ABA) in plants under drought stress (DS) is crucial in modulating physiological responses that eventually lead to adaptation to an unfavorable environment; however, the role of this hormone in modulation of glycinebetaine (GB) metabolism in maize particularly at the seedling stage is still poorly understood. Some hydroponic experiments were conducted to investigate the modulation role of ABA on plant growth, water relations and GB metabolism in the leaves of two maize cultivars, Zhengdan 958 (ZD958; drought tolerant), and Jundan 20 (JD20; drought sensitive), subjected to integrated root-zone drought stress (IR-DS) simulated by the addition of polyethylene glycol (PEG, 12% w/v, MW 6000). The IR-DS substantially resulted in increased betaine aldehyde dehydrogenase (BADH) activity and choline content which act as the key enzyme and initial substrate, respectively, in GB biosynthesis. Drought stress also induced accumulation of GB, whereas it caused reduction in leaf relative water content (RWC) and dry matter (DM) in both cultivars. The contents of ABA and GB increased in drought-stressed maize seedlings, but ABA accumulated prior to GB accumulation under the drought treatment. These responses were more predominant in ZD958 than those in JD20. Addition of exogenous ABA and fluridone (Flu) (ABA synthesis inhibitor) applied separately increased and decreased BADH activity, respectively. Abscisic acid application enhanced GB accumulation, leaf RWC and shoot DM production in both cultivars. However, of both maize cultivars, the drought sensitive maize cultivar (JD20) performed relatively better than the other maize cultivar ZD958 under both ABA and Flu application in view of all parameters appraised. It is, therefore, concluded that increase in both BADH activity and choline content possibly resulted in enhancement of GB accumulation under DS. The endogenous ABA was probably involved in the regulation of GB metabolism by regulating BADH activity, and resulting in modulation of water relations and plant growth under drought, especially in the drought sensitive maize cultivar JD20.
Use of the MLPA Assay in the Molecular Diagnosis of Gene Copy Number Alterations in Human Genetic Diseases
Authors: Stuppia Liborio , Antonucci Ivana , Palka Giandomenico , Gatta Valentina
Published: March 2012

Multiplex Ligation-dependent Probe Amplification (MLPA) assay is a recently developed technique able to evidence variations in the copy number of several human genes. Due to this ability, MLPA can be used in the molecular diagnosis of several genetic diseases whose pathogenesis is related to the presence of deletions or duplications of specific genes. Moreover, MLPA assay can also be used in the molecular diagnosis of genetic diseases characterized by the presence of abnormal DNA methylation. Due to the large number of genes that can be analyzed by a single technique, MLPA assay represents the gold standard for molecular analysis of all pathologies derived from the presence of gene copy number variation. In this review, the main applications of the MLPA technique for the molecular diagnosis of human diseases are described.
Initial Processes of Atomic Layer Deposition of Al2O3 on InGaAs: Interface Formation Mechanisms and Impact on Metal-Insulator-Semiconductor Device Performance
Authors: Jevasuwan Wipakorn , Urabe Yuji , Maeda Tatsuro , Miyata Noriyuki , Yasuda Tetsuji , Yamada Hisashi , Hata Masahiko , Taoka Noriyuki , Takenaka Mitsuru , Takagi Shinichi
Published: March 2012

Interface-formation processes in atomic layer deposition (ALD) of Al2O3 on InGaAs surfaces were investigated using on-line Auger electron spectroscopy. Al2O3 ALD was carried out by repeating a cycle of Al(CH3)3 (trimethylaluminum, TMA) adsorption and oxidation by H2O. The first two ALD cycles increased the Al KLL signal, whereas they did not increase the O KLL signal. Al2O3 bulk-film growth started from the third cycle. These observations indicated that the Al2O3/InGaAs interface was formed by reduction of the surface oxides with TMA. In order to investigate the effect of surface-oxide reduction on metal-insulator-semiconductor (MIS) properties, capacitors and field-effect transistors (FETs) were fabricated by changing the TMA dosage during the interface formation stage. The frequency dispersion of the capacitance-voltage characteristics was reduced by employing a high TMA dosage. The high TMA dosage, however, induced fixed negative charges at the MIS interface and degraded channel mobility.
Update of Spectroscopic Data for 4-Hydroxydictyolactone and Dictyol E Isolated from a Halimeda stuposa — Dictyota sp. Assemblage
Authors: Ovenden Simon P. B. , Nielson Jonathan L. , Liptrot Catherine H. , Willis Richard H. , Tapiolas Dianne M. , Wright Anthony D. , Motti Cherie A.
Published: March 2012

The methanol extract of an assemblage of Halimeda stuposa and a Dictyota sp., yielded three natural products characteristic of Dictyota sp., and one of Halimeda sp. These included the xenicane diterpene 4-hydroxydictyolactone (1), and the diterpenes dictyol E (2), 8a,11-dihydroxypachydictyol A (3) and indole-3-carboxaldehyde (4). A minor revision of 1 and new spectroscopic data for 1 and 2 are provided, along with associated anti-cancer activities of compounds 1–4.
Ocular Drug Delivery for Glaucoma Management
Authors: Gooch Nathan , Molokhia Sarah A. , Condie Russell , Burr Randon Michael , Archer Bonnie , Ambati Balamurali K. , Wirostko Barbara
Published: March 2012

Current glaucoma management modalities are hindered by low patient compliance and adherence. This can be due to highly complex treatment strategies or poor patient understanding. Treatments focus on the management or reduction of intraocular pressure. This is most commonly done through the use of daily topical eye drops. Unfortunately, despite effective therapies, glaucoma continues to progress, possibly due to patients not adhering to their treatments. In order to mitigate these patient compliance issues, many sustained release treatments are being researched and are entering the clinic. Conjunctival, subconjunctival, and intravitreal inserts, punctal plugs, and drug depots are currently in clinical development. Each delivery system has hurdles, yet shows promise and could potentially mitigate the current problems associated with poor patient compliance.
Novel Principle of Contactless Gauge Block Calibration
Authors: Buchta Zdeněk , Řeřucha Šimon , Mikel Břetislav , Čížek Martin , Lazar Josef , Číp Ondřej
Published: March 2012

In this paper, a novel principle of contactless gauge block calibration is presented. The principle of contactless gauge block calibration combines low-coherence interferometry and laser interferometry. An experimental setup combines Dowell interferometer and Michelson interferometer to ensure a gauge block length determination with direct traceability to the primary length standard. By monitoring both gauge block sides with a digital camera gauge block 3D surface measurements are possible too. The principle presented is protected by the Czech national patent No. 302948.
Cell-Based Sensor System Using L6 Cells for Broad Band Continuous Pollutant Monitoring in Aquatic Environments
Authors: Kubisch Rebekka , Bohrn Ulrich , Fleischer Maximilian , Stütz Evamaria
Published: March 2012

Pollution of drinking water sources represents a continuously emerging problem in global environmental protection. Novel techniques for real-time monitoring of water quality, capable of the detection of unanticipated toxic and bioactive substances, are urgently needed. In this study, the applicability of a cell-based sensor system using selected eukaryotic cell lines for the detection of aquatic pollutants is shown. Readout parameters of the cells were the acidification (metabolism), oxygen consumption (respiration) and impedance (morphology) of the cells. A variety of potential cytotoxic classes of substances (heavy metals, pharmaceuticals, neurotoxins, waste water) was tested with monolayers of L6 cells (rat myoblasts). The cytotoxicity or cellular effects induced by inorganic ions (Ni2+ and Cu2+) can be detected with the metabolic parameters acidification and respiration down to 0.5 mg/L, whereas the detection limit for other substances like nicotine and acetaminophen are rather high, in the range of 0.1 mg/L and 100 mg/L. In a close to application model a real waste water sample shows detectable signals, indicating the existence of cytotoxic substances. The results support the paradigm change from single substance detection to the monitoring of overall toxicity.
Improving Fingerprint Verification Using Minutiae Triplets
Authors: Medina-Pérez Miguel Angel , García-Borroto Milton , Gutierrez-Rodríguez Andres Eduardo , Altamirano-Robles Leopoldo
Published: March 2012

Improving fingerprint matching algorithms is an active and important research area in fingerprint recognition. Algorithms based on minutia triplets, an important matcher family, present some drawbacks that impact their accuracy, such as dependency to the order of minutiae in the feature, insensitivity to the reflection of minutiae triplets, and insensitivity to the directions of the minutiae relative to the sides of the triangle. To alleviate these drawbacks, we introduce in this paper a novel fingerprint matching algorithm, named M3gl. This algorithm contains three components: a new feature representation containing clockwise-arranged minutiae without a central minutia, a new similarity measure that shifts the triplets to find the best minutiae correspondence, and a global matching procedure that selects the alignment by maximizing the amount of global matching minutiae. To make M3gl faster, it includes some optimizations to discard non-matching minutia triplets without comparing the whole representation. In comparison with six verification algorithms, M3gl achieves the highest accuracy in the lowest matching time, using FVC2002 and FVC2004 databases.
Au seuil de l'architecture chrétienne en Pologne. Ostrów Lednicki
Authors: Zurowska Klementyna , Rodzińska-Chorazy Teresa
Published: March 2012

En Grande-Pologne, sur l'île du lac Lednica, s'élève un castrum à l'intérieur duquel subsistent les ruines d'un bâtiment centré attenant à un édifice allongé. Non loin de cet endroit, était autrefois érigée une église à nef unique et chœur carré. Au cours des fouilles effectuées entre 1987 et 1990 dans l'aire des ruines, on a découvert deux piscines baptismales à l'intérieur du bâtiment centré. Les découvreurs en ont conclu que la chapelle centrée était primitivement un baptistère lié au palais épiscopal et que les trois bâtiments — église, baptistère et palais épiscopal — avaient dû former un groupe épiscopal élevé dans la seconde moitié du Xe s. Tant le baptistère que le groupe épiscopal laissent voir une inspiration méditerranénne.
A measurement of the hysteresis loop in force-spectroscopy curves using a tuning-fork atomic force microscope
Authors: Lange Manfred , van Vörden Dennis , Möller Rolf
Published: March 2012

Measurements of the frequency shift versus distance in noncontact atomic force microscopy (NC-AFM) allow measurements of the force gradient between the oscillating tip and a surface (force-spectroscopy measurements). When nonconservative forces act between the tip apex and the surface the oscillation amplitude is damped. The dissipation is caused by bistabilities in the potential energy surface of the tip–sample system, and the process can be understood as a hysteresis of forces between approach and retraction of the tip. In this paper, we present the direct measurement of the whole hysteresis loop in force-spectroscopy curves at 77 K on the PTCDA/Ag/Si(111) √3 × √3 surface by means of a tuning-fork-based NC-AFM with an oscillation amplitude smaller than the distance range of the hysteresis loop. The hysteresis effect is caused by the making and breaking of a bond between PTCDA molecules on the surface and a PTCDA molecule at the tip. The corresponding energy loss was determined to be 0.57 eV by evaluation of the force–distance curves upon approach and retraction. Furthermore, a second dissipation process was identified through the damping of the oscillation while the molecule on the tip is in contact with the surface. This dissipation process occurs mainly during the retraction of the tip. It reaches a maximum value of about 0.22 eV/cycle.
CORRIGENDUM
Authors: Ozkan Kursad , Mert Ahmet
Published: March 2012

"Corrigendum." Journal of Environmental Engineering and Landscape Management, 20(1), p. ix
DAMPING TRANSVERSAL VIBRATIONS OF THE OFFSET CYLINDER OF THE OFFSET PRESS / RULONINĖS OFSETINĖS MAŠINOS OFSETINIO CILINDRO SKERSINIŲ VIRPESIŲ SLOPINIMAS
Authors: Šalvienė Eglė , Šešok Nikolaj , Iljin Igor
Published: March 2012

Investigation into the influence of a dynamic vibration damper on the intensity of the absolute forced transversal vibrations of the blanket cylinder of the web printing offset press was performed. The analytical and numerical examination of the dynamic model of the cylinder was done. The obtained results have disclosed that the application of the damper decreases the intensity of printing cylinder vibrations.

Santrauka

Analiziniu ir skaitmeniniu būdu ištirtas dinaminio virpesių slopintuvo efektyvumas slopinant priverstinius periodinius ofsetinio spausdinimo įrenginio ofsetinio cilindro skersinius virpesius, bloginančius atspaudų kokybę. Atliktas ofsetinio cilindro ir virpesių slopintuvo modeliavimas „Matlab“ programa. Sudarytos „Simulink“ diagramos. Pateiktos amplitudinės dažninės charakteristikos. Parodyta, kad naudojant virpesių slopintuvus galima efektyviai mažinti spausdinimo įrenginio cilindrų skersinius virpesius.
RESEARCH ON THE QUALITY OF FIGURE CUTTING / FIGŪRINIO PJOVIMO KOKYBĖS TYRIMAS
Authors: Šakalytė Kristina , Šešok Nikolaj , Iljin Igor
Published: March 2012

The article experimentally investigates the depth of the film cut under different “Summa plotter S 160” plotter operation regimes. Cut depth has been measured using a microscope. The paper determines regularities of the dependence of cut depth on cutting speed and press force, presents the regimes of high-quality cutting and formulates practical recommendations for selecting cutting speed and pres force.

Santrauka

Eksperimento būdu tirtas plėvelės įpjovimo gylis. Plėvelės raižytos skirtingais darbo režimais braižytuvu „Summa S 160“. Plėvelės įpjovimo gylis matuotas mikroskopu. Keičiant pjovimo greitį ir prispaudimo lygį nustatyti įpjovimo gylio dėsningumai. Apskaičiuoti parametrai, pagal kuriuos galima kokybiškai išraižyti tiriamąsias plėveles. Pateiktos praktinės rekomendacijos pjovimo greičiui ir prispaudimo lygiui parinkti.
RESEARCH INTO AUTOMOBILE MOVEMENT ON A CURVE UNDER WINTER CONDITIONS / AUTOMOBILIO JUDĖJIMO POSŪKYJE TYRIMAS ŽIEMOS SĄLYGOMIS
Authors: Kemzūraitė Kristina , Mikaliūnas Šarūnas , Sokolovskij Edgar , Garbinčius Giedrius
Published: March 2012

The article analyzes the movement of the car on the curve on the slippery and snowy road surface with asphalted ruts. The paper reviews literature related to lateral and longitudinal vehicle acceleration and dynamics of vehicle movement. The experimental facts of vehicle lateral acceleration are given in graphical charts. The article also describes the acceleration values and stability of the automobile depending on the speed in the curve. The findings are given based on the results.

Santrauka

Straipsnyje nagrinėjamas automobilio judėjimas posūkyje esant slidžiai ir snieguotai su asfaltuotomis provėžomis kelio dangai. Apžvelgiama literatūra, susijusi su automobilių skersiniais ir išilginiais pagreičiais, automobilių judėjimo dinamika. Eksperimentinėje dalyje pateikiami automobilių skersinių pagreičių grafikai. Nagrinėjamas pagreičių dydis ir automobilio stabilumas priklausomai nuo judėjimo greičio tame kelio posūkyje. Remiantis gautais rezultatais pateikiamos išvados.
INVESTIGATION INTO THE STRUCTURE AND CORROSION RESISTANCE OF MG-AL AND MG-AL-ZR COATINGS PRODUCED BY MAGNETRON SPUTTERING / MAGNETRONINIŲ MG-AL, MG-AL-ZR IR ZR DANGŲ STRUKTŪROS IR KOROZINIO ATSPARUMO TYRIMAS
Authors: Lukauskaitė Raimonda , Valiulis Algirdas Vaclovas
Published: March 2012

Thin cathode layers of 200 nm thickness of Mg-Al and Mg-Al-Zr alloys and pure Zr were formed on glass substrates using a magnetron sputtering technique. X-ray diffraction and atomic force microscopy were used for structure and morphology analysis of magnetron sputtered alloys. The corrosion resistance of the sputtered Mg-Al and Mg-Al-Zr coatings in 0.1 M (NH4)3BO3 and 0.1 M NaCl solution (pH = 8.6), was evaluated according to anodic polarization behavior.

Santrauka

Plonos, 1–2 μm storio, Mg-Al ir Mg-Al-Zr lydinių ir gryno Zr dangos buvo suformuotos ant stiklinių padėklų magnetroninio nusodinimo metodu. Šių dangų struktūra ir morfologija tirta fizikiniais analizės metodais: rentgeno spindulių difrakcija (toliau – RSD) ir atominės jėgos mikroskopija (toliau – AJM). Korozinis dangų atsparumas vertintas veikiant 0,1 M NH4BO3 ir 0,1 M NaCl tirpalu (pH = 8,6), be to, atlikti anodinės poliarizacijos tyrimai. Magnetroniniu būdu nusodintų dangų korozinis atsparumas lygintas su tradiciniais metalurginiais metodais pagamintų cirkonio ir Mg-Al lydinių koroziniu atsparumu. Nustatytos koreliacijos tarp lydinių struktūros ir korozinio atsparumo.
ANALYSIS OF A FLAT-PLATE SOLAR COLLECTOR / PLOKŠČIOJO SAULĖS KOLEKTORIAUS TYRIMAS
Authors: Klevinskis Andrius , Bučinskas Vytautas
Published: March 2012

The paper deals with a flat plate solar collector. The experiment was conducted using the finite element method and described the theoretical effectiveness of the flat solar collector as well as the factors that produce the major loss of heat. Investigation has concentrated on several different transparent surfaces used for determining the efficiency of the collector: 5 mm thick transparent glass and 5 mm thick transparent glass coated with a film of 120 μm.

Santrauka

Darbe tirtas plokščiasis saulės kolektorius. Baigtinių elementų metodu nustatytas teorinis saulės kolektoriaus efektyvumas ir didžiausius šilumos nuostolius lemiantys veiksniai. Atliktas eksperimentas, kurio metu ištirtas kolektoriaus efektyvumas naudojant skirtingas skaidrias dangas: 5 mm skaidrų stiklą ir 5 mm skaidrų stiklą su 120 μm storio papildoma plėvele.
MULTI-OBJECTIVE OPTIMIZATION OF GRILLAGES APPLYING THE GENETIC ALGORITHM / DAUGIAKRITERIS SIJYNŲ OPTIMIZAVIMAS GENETINIAIS ALGORITMAIS
Authors: Mačiūnas Darius , Belevičius Rimantas , Kaunas Juozas
Published: March 2012

The article analyzes the optimization of grillage-type foundations seeking for the least possible reactive forces in the poles for a given number of poles and for the least possible bending moments of absolute values in the connecting beams of the grillage. Therefore, we suggest using a compromise objective function (to be minimized) that consists of the maximum reactive force arising in all poles and the maximum bending moment of the absolute value in connecting beams; both components include the given weights. The variables of task design are pole positions under connecting beams. The optimization task is solved applying the algorithm containing all the initial data of the problem. Reactive forces and bending moments are calculated using an original program (finite element method is applied). This program is integrated into the optimization algorithm using the “black-box” principle. The “black-box” finite element program sends back the corresponding value of the objective function. Numerical experiments revealed the optimal quantity of points to compute bending moments. The obtained results show a certain ratio of weights in the objective function where the contribution of reactive forces and bending moments to the objective function are equivalent. This solution can serve as a pilot project for more detailed design.

Santrauka

Straipsnyje nagrinėjamas rostverkinių pamatų optimizavimas, siekiant kuo mažesnių reaktyvinių jėgų poliuose duotajam polių skaičiui ir kuo mažesnių absoliutiniu dydžiu lenkimo momentų sijyno jungiančiosiose sijose. Optimizavimo uždavinio tikslo funkciją sudaro didžiausia visuose poliuose atraminė reakcija ir didžiausias absoliutiniu dydžiu lenkimo momentas jungiančiosiose sijose; abu dėmenys imami su tam tikrais svoriais. Uždavinio projektavimo kintamieji yra polių padėtys po jungiančiosiomis sijomis. Optimizavimo uždavinys sprendžiamas genetiniu algoritmu, į kurio formulavimą įtraukiama išankstinė žinoma informacija apie uždavinį. Reakcijų ir momentų skaičiavimo uždavinys skaičiuojamas baigtinių elementų metodu. Ši programa jungiama prie optimizavimo algoritmo juodosios dėžės principu. Optimaliam taškų, kuriuose skaičiuojami lenkimo momentai, skaičiui nustatyti atliekami skaitiniai eksperimentai. Skaitiniais eksperimentais nustatytos sąlygos, kurioms esant reakcija ir momentas turi ekvivalentišką įtaką tikslo funkcijai. Tokie skaičiavimai galėtų būti kaip bandomieji sprendiniai detaliau projektuojant sijyną.
INVESTIGATION INTO NEGATIVE-STIFFNESS VIBROISOLATION TABLE “MINUS K 500BM-1” / NEIGIAMOJO STANDUMO VIBROIZOLIACINIO STALIUKO „MINUS K 500BM-1“ TYRIMAS
Authors: Meškelytė Vitalija , Jurevičius Mindaugas
Published: March 2012

The article analyzes the performance of a negative-stiffness vibroisolating table in the range of a frequency of 2–110 Hz and reviews other possible ways of vibroisolating. The paper deals with conducted experimental tests on the transmissibility of vibrations employing specific tested equipment for vibration excitation enabling to execute research facilities. The article also describes the methodology of experimental tests and presents the obtained results and conclusions of experimental analysis.

Santrauka

Nagrinėjamas neigiamojo standumo (angl. negative-stiffness) vibroizoliacinio staliuko „Minus K 500BM-1“ efektyvumas 2–110 Hz diapazone. Apžvelgti kiti galimi vibroizoliacijos būdai. Atlikti eksperimentiniai vibracijų perduodamumo tyrimai. Išbandyta speciali vibracijų žadinimo įranga, leidžianti atlikti numatytus bandomojo objekto tyrimus. Aprašyta eksperimentinių tyrimų metodika. Pateikti eksperimentų metu gauti rezultatai ir išvados.
INVESTIGATION INTO TT TECHNOLOGICAL PROPERTIES OF COOLANTS WITH LIQUID CRYSTAL ADDITIVES / TEPIMO IR AUŠINIMO SKYSČIO SU SKYSTŲJŲ KRISTALŲ PRIEDAIS TECHNOLOGINIŲ SAVYBIŲ TYRIMAS
Authors: Strolia Vaidas , Mokšin Vadim , Urbanavičius Robertas
Published: March 2012

The paper presents the results of comparative research on the roughness and tool life of the machined surface when steel and cast iron work pieces were turned, reamed and tapped and the cutting zone was lubricated by various coolants (mineral oils, oil emulsions) with and without twisted nematic liquid crystals. The tested liquid crystals were taken from the same homologous series (fatty acid cholesterol esters) but had different molecular mass. It has been established that the most positive tribological effect of liquid crystalline additives is achieved when high-molecular liquid crystals are used in operations characterized by the largest tool-work piece interface area (reaming, threading).

Santrauka

Straipsnyje pateikti apdirbto paviršiaus šiurkštumo ir įrankių patvarumo matavimo rezultatai, kai plieno ir ketaus paviršiai buvo tekinami, plečiami ir sriegiami sriegikliais, pjovimo zoną tepant ir aušinant įvairiais tepimo ir aušinimo skysčiais su cholesterinių skystųjų kristalų priedais ir be priedų. Buvo naudojami skirtingos molekulinės masės vienos homologinės eilės cholesteriniai skystieji kristalai (cholesterolio esteriai) ir skirtingi tepimo ir aušinimo skysčiai: tepalai ir mineralinių tepalų vandens emulsijos. Nustatyta, kad didžiausias teigiamas skystųjų kristalų priedų efektas pasiekiamas tų operacijų metu, kai įrankio ir detalės kontakto plotas yra didesnis (pvz., plečiant, sriegiant). Taip pat nustatyta, kad didžiausiu tribologiniu efektu pasižymi didesnės molekulinės masės skystieji kristalai.
CONTROL OVER THE PERFORMANCE OF MONOCRYSTALLINE SILICON SOLAR CELLS REFERRING TO THE POROUS SILICON LAYER / MONOKRISTALINIO SILICIO SAULĖS ELEMENTŲ CHARAKTERISTIKŲ VALDYMAS AKYTOJO SILICIO SLUOKSNIU
Authors: Mitkevičius Ramūnas , Zagadskij Viktor , Šatkovskis Eugenijus
Published: March 2012

The paper examines the parameters of crystalline silicon solar cells such as fill factor, maximal output power and series resistance forming a porous silicon layer. The obtained results show that introducing the layer into the structure of a solar cell results in a 19 percent enhancement of maximal output power and conversion efficiency.

Santrauka

Šiame darbe tiriamas akytojo silicio darinių poveikis saulės elementų elektrinėms charakteristikoms: nuosekliajai varžai, voltamperinių charakteristikų formai. Parodyta, kad pagaminus silicio saulės elemente akytojo silicio sluoksnį, galima veikti (valdyti) saulės elementų voltamperines charakteristikas ir elemento nuosekliąją elektrinę varžą. Nustatyta, kad tiriamajame bandinyje suformavus akytojo silicio sluoksnį, apkrovos voltamperinės charakteristikos užpildos rodiklis padidėjo 1,15 karto, o maksimali elemento kuriama ir apkrovos metu atiduodama elektros energijos galia – 1,19 karto. Tiek pat 1,19 karto padidėjo saulės elemento šviesos konversijos į elektros energiją efektyvumas.
Meurtre sur enfants : perspectives psycho-pathologiques en psycho-criminologie
Authors: Villerbu Loïck M. , Hirschelmann-Ambrosi Astrid
Published: March 2012

Sans doute le fait est-il aussi ancien que le monde et plus particulièrement depuis que l’enfance dans l’enfant, l’infans comme être psychique et non seulement moral ont émergé à la conscience collective. Le droit l’a fait crime dont l’intolérance a varié et varie encore, au cours des siècles et des civilisations. La médecine légale l’a objectivé. Puis, avec elle, les patriciens du psychisme et des sciences sociales ont largement contribué à déceler, explorer, disserter et composer ces rapports si singuliers de l’adulte à l’enfant. Ce qui est mis en perspective dans ce travail à partir d’une clinique expertale est un essai d’ordonner ces comportements criminels sur enfants. Comportements qui échappent aux catégories sémiologiques des praticiens de la pathologie mentale telle qu’elle est définie dans le code pénal. Comportements qui peuvent s’interpréter sous deux axes structuraux, la mélancolisation et le narcissisme.
Emprise criminelle familiale
Authors: Bessoles Philippe
Published: March 2012

Élargissant la notion de famille à toute forme groupale restreinte et élargie du lien, nous proposons une analyse du meurtre dans les familles comme dépôt de la pulsion d’emprise. Le paradigme psychopathologique est la paranoïa. Le but du crime n’est pas la destructivité, fût-elle inévitable, de l’autre mais la logique de la toute-puissance exercée sur l’altérité, la construction sociale et sociétale. Le père incestueux, le criminel, le serial killer , le dictateur procèdent des mêmes logiques inconscientes définies par l’emprise : la cruauté, la fécalisation et le sadisme. L’enjeu est la maîtrise de l’objet, de l’espace et du temps dans une quête d’un pouvoir absolu.
L'enfant idéal, un frère sacrifié. Du fratricide à la cession altruiste
Authors: Houssier Florian
Published: March 2012

Le frère constitue un objet primaire dans l’histoire des investissements libidinaux du sujet ; l’élaboration de la haine, participant de l’intégration de l’ambivalence, représente un enjeu central du lien fraternel. En entrecroisant la mythologie et la clinique du fratricide, nous proposons l’hypothèse d’une préférence incestueuse d’un parent envers son enfant, celui qui sera tué/sacrifié par le frère rival. Le meurtre fratricide y apparaît comme un équivalent de scène primitive du meurtre intrafamilial, l’envers de la haine fratricide prenant notamment la forme de la cession altruiste.
Sacrifices infanticides
Authors: Vogiatzoglou Kyveli
Published: March 2012

L’article présent laisse transparaître deux faces du sacrifice. Dans la religion judéo-chrétienne et dans les mythes, le sacrifice a une utilité et va dans le sens freudien du renoncement qui permet la cohésion du groupe et la continuité du lien social. À l’inverse, dans le mythe de Médée, tel qu’il a été repris par Euripide, le sacrifice va dans le sens de la rupture du lien, n’a d’utilité que sur l’instant même, dans l’immédiateté. Médée nous révèle un autre monde, pré-mythique, pré-religieux. C’est dans cette logique de sacrifice sans substitution, en pure perte, que s’inscrivent aussi les crimes des mères infanticides contemporaines. Ces mères meurtrières ont comme une religion privée et pour différentes raisons arrivent au passage à l’acte infanticide.
« Tout ce que je viens de dicter est la vérité » Crimes et familles dévastées
Authors: Pinel Carole
Published: March 2012

Cet article interroge la question du meurtre à partir de la situation de Monsieur N. et de son recours à l’écriture comme plaidoyer face aux crimes qui lui sont reprochés, en se basant notamment sur la mise en scène de son procès en cour d’assises. La nature insoutenable, voire impensable, des actes commis permettra de dégager un aspect fascinant du secret du crime, tout en mettant en relief l’impossibilité d’en révéler la vérité .
Présentation du dossier inédit d'Élisabeth Geblesco sur Pierre Rivière, 1973
Authors: Aleksić Branko
Published: March 2012

Le cas de Pierre Rivière, qui a commis un parricide retentissant au XIX e siècle, a été étudié au cours d’un séminaire de Foucault en 1973, dans le cadre des rapports entre psychiatrie et justice pénale. Dans les archives d’Élisabeth Geblesco, psychanalyste, qui a assisté à ce séminaire, nous avons trouvé un manuscrit relatif au Mémoire (1836) de Rivière, édité et commenté par Foucault au cours du travail collectif au Collège de France en 1973. L’analyse d’Élisabeth Geblesco, transcrite ici pour la première fois, comble la lacune laissée dans le dossier constitué par Foucault : les états de paranoïa et de l’inceste, remplacent ce « brouillard » des discours juridique et de médecine mentale. L’acte de Rivière serait resté incompréhensible sans l’approche psychanalytique.
« Il était une fois... Jack l'Éventreur »
Authors: Drossart Francis
Published: March 2012

À partir de l’histoire et du mythe de Jack l’Éventreur, nous essaierons de montrer que, par-delà la « libération des forces pulsionnelles » le plus souvent invoquée, le « serial killer » poursuit un véritable dessein qui n’est rien moins que de mettre au point (avec souvent de savantes et progressives améliorations) un véritable « appareil à détruire la pensée de l’autre » (attaques contre les liens, fonction anti– C au sens de Bion). Cet appareil lui permet efficacement de maintenir un semblant d’intégrité psychique qui fait de lui un être apparemment normal. De ce point de vue, de par le clivage ainsi instauré, l’auteur de meurtres en série est celui d’un véritable récit dont la fonction déstabilisatrice, quant à ceux à qui il s’adresse, est exactement inverse de celle que l’on reconnaît aux contes de fées.
Meurtres dans la nation : contribution à l'épistémologie psychanalytique
Authors: Barzin Nader
Published: March 2012

Ayant identifié les limites de l’explication psychanalytique – de ne prendre en considération que les processus psychiques au niveau individuel et groupal – cet article appelle à une approche interdisciplinaire pour analyser les événements politiques et sociaux complexes. L’analogie entre la famille et la nation nous a permis de mettre en lumière les carences intrinsèques de l’explication psychanalytique à prendre en considération l’impact des institutions et le processus politique. Au travers des exemples de la guerre, du SIDA, des génocides et des révolutions – notamment le printemps arabe – nous avons pu affirmer cette hypothèse.
Logique juridique et logique psychanalytique, une possible rencontre ?
Authors: de Mijolla-Mellor Sophie
Published: March 2012

Contrairement au psychologue ou au psychiatre, ce n’est pas dans l’espace de l’expertise que le psychanalyste peut apporter au juriste des éléments de réflexion mais dans l’interrogation portée en amont plus profondément sur les principes fondamentaux du droit. En soulignant la portée de leur dimension inconsciente, la psychanalyse peut aussi et a pu attirer l’attention sur les risques, encourus au cours du procès, d’une erreur d’appréciation des faits.
Pedro José Velarde: un rapsoda callejero en el México del siglo XVIII
Authors: Bernabéu Albert Salvador
Published: March 2012

Gracias al proceso abierto por la Inquisición mexicana en 1768 podemos reconstruir parcialmente la vida y la obra de Pedro José Velarde, poeta callejero que se hizo famoso en el mercado del Baratillo. Algunas de sus composiciones fueron dedicadas a ensalzar las actividades de los jesuitas, expulsados en 1767, por lo que fue encarcelado y sentenciado a servir durante tres años en el hospital de San Juan de Dios. Murió en 1784 en la pobreza.
Los amargos beneficios del dulce. Azúcar, Cuba y deuda ecológica
Authors: Rodrigo y Alharilla Martín
Published: March 2012

El artículo se situa en el paradigma de la historia ambiental. A partir de un enfoque a la vez microhistórico e inductivo, ofrece una reflexión sobre el vínculo existente entre la deforestación registrada en Cuba por efecto de la expansión del cultivo de la caña de azúcar y la transferencia de parte de las ganancias producidas por el azúcar a economías de otras latitudes, particularmente hacia Cataluña. Se analiza, en primer lugar, el proceso de implantación de las haciendas cañeras en la antigua provincia cubana de Las Villas, durante el segundo tercio del siglo XIX, y, a continuación, la trayectoria vital de varios hacendados de la región, los cuales acabaron instalándose en la etapa final de su vida en Cataluña, adonde trasladaron buena parte de los capitales acumulados en la isla. Por último, se apuntan diferentes evidencias que sugieren que el análisis planteado podría realizarse igualmente para otras regiones de Cuba así como para Puerto Rico.
Sebastião Rodrigues Soromenho: um piloto português nos navios da rota de Manila
Authors: Delgado de Piedade Carla
Published: March 2012

O presente texto pretende traçar a biografia do piloto português Sebastião Rodrigues Soromenho, na qual se destaca a viagem empreendida ao longo da costa da Califórnia, nos anos de 1594-1595, a mando de Filipe II, com o propósito expresso de descobrir pontos de apoio aos navios da rota de Manila. Ao empreender esta expedição, o navegador inscreveu o seu nome na lista de portugueses que serviram na armada castelhana e que contribuíram para a descoberta do Pacífico e o levantamento e registo das costas da América Hispânica, contribuindo de forma decisiva na definição das rotas do Pacífico no século XVI.
Para cumprir este propósito, debruçamo-nos na análise dos documentos relativos a esta expedição, como os dois roteiros, a documentação oficial emanada pelo rei e pelo vicereino de Nova Espanha e o traslado do testamento do piloto. Este conjunto de fontes tem permanecido até agora desconhecido da maioria dos estudiosos
El primer virreinato americano
Authors: Cassá Roberto , González de Peña Raimundo , Rodríguez Morel Genaro
Published: March 2012

El artículo trata sobre el gobierno de Cristóbal Colón en tierras americanas. Retomamos el tema del primer emplazamiento español en Santo Domingo y las contradicciones que tuvo aquel proyecto debido a la lógica del estado absolutista, a la ambición desmedida del descubridor y a su reacción ante los controles que desde un principio impusieron los monarcas. En un segundo momento analizamos las dificultades que encontró el Almirante para desarrollar un modelo mercantilista acorde a sus ideas y a los acuerdos a que llegó con la Corona. En ese contexto analizamos la lógica del primer gobierno colombinista en las Indias y los rasgos que definieron la nueva sociedad antillana.
Religiosidad e identidad en San Francisco de Campeche. Siglos XVI y XVII
Authors: Rocher Salas Adriana Delfina
Published: March 2012

Este trabajo estudia los problemas que acompañaron la gestación de una identidad propia y común para los residentes hispanos de la villa y puerto de San Francisco de Campeche durante el período colonial y la participación de elementos religiosos, particularmente el culto a los santos patronos, en el proceso. Teniendo como telón de fondo la peculiaridad de la región yucateca, donde una conflictiva relación entre españoles e indígenas impidió la utilización de elementos culturales prehispánicos en la formación de una conciencia identitaria, se analizan diversos factores, como las características de los santos tutelares de los barrios y de algunas corporaciones locales, los procesos de adopción, adaptación u olvido de sus cultos por parte del vecindario porteño y la participación de los diferentes sectores locales en la promoción de sus santos patronos.
La alta sociedad, el mundo de la cultura y la modernización en la Buenos Aires del cambio del siglo XIX al XX
Authors: Losada Leandro
Published: March 2012

En el artículo se abordan las sociabilidades intelectuales y las trayectorias de algunos de los personajes más destacados en estas esferas en la Buenos Aires del novecientos. El propósito central es reflexionar sobre el impacto que los profundos cambios económicos, sociales, políticos y culturales que se produjeron en la Argentina por entonces, entre ellos la profesionalización de las actividades intelectuales, tuvieron sobre el rol central que hasta
el fin de siglo había ocupado la alta sociedad tradicional en el campo de la cultura. La hipótesis del artículo es que dichas mutaciones desdibujaron ese papel, y en consecuencia,
pertenecer o estar vinculado a la elite tradicional pudo ser un capital relevante pero no ya decisivo para obtener éxito o reconocimiento en el mundo de la cultura.
Desarrollo de un procedimiento constructivo más seguro para invernaderos multitúnel
Authors: Carreño A. , Pérez J. , Vázquez J. , Callejón A. J.
Published: March 2012

Un nuevo sistema constructivo para invernaderos multitúnel ha sido desarrollado y evaluado. El nuevo sistema se fundamenta en el montaje del conjunto de la estructura de cubierta a nivel de suelo y posteriormente su elevación, hasta alcanzar su posición definitiva. Para su evaluación, se ha construido un invernadero combinando ambos sistemas constructivos. La mitad del invernadero se ha ejecutado según el sistema tradicional y la restante según el nuevo procedimiento, empleando en ambos casos los mismos operarios. Los parámetros registrados, horas de trabajo en altura, mano de obra empleada, necesidades de maquinaria complementaria y tiempo de montaje, ponen de manifiesto las importantes mejoras en cuanto a seguridad que conlleva la aplicación del nuevo procedimiento constructivo, que permite concluir que la siniestralidad por caídas en altura se reduciría un 9,2% debido a la disminución de las horas de trabajo en altura en un 40%.
¿Existen problemas estructurales irresolubles? Una cuestión abierta
Authors: Antuña J. , Vázquez M.
Published: March 2012

Galileo es el primer autor occidental que señaló la imposibilidad de que una figura creciera indefinidamente por semejanza, definiendo el concepto de un tamaño insuperable para cualquier estructura mecánica sujeta a la acción de su propio peso. Si tal tamaño insuperable existe para un problema estructural, tal problema sería irresoluble para tamanos mayores. La cuestión no ha sido contestada hasta la fecha, a pesar de múltiples investigaciones según dos líneas contrapuestas: por un lado, la determinación de formas de tensión constante no limitadas a un tamaño concreto; por otro, la determinación de tamaños insuperables para problemas estructurales bien definidos. Aquí se presentan dos hipótesis relacionadas que podrían encauzar la búsqueda de una respuesta definitiva.
Le flou rhétorique dans les textes de brevets américains
Authors: Frobert-Adamo Monique
Published: March 2012

Cet article aborde le problème des zones de flou dans les textes de brevets déposés aux États-Unis. Les outils linguistiques utilisés par les rédacteurs de textes de brevets convergent afin de mettre en oeuvre une stratégie de hedging. Le linguiste est amené à se demander si les hedges sont des mots et expressions destinés à créer du flou.
Innovation Gaming
Authors: Pallot Marc , Le Marc Céline , Richir Simon , Schmidt Colin , Mathieu Jean-Pierre
Published: March 2012

A number of existing innovation paradigms and design approaches, such as open innovation (Chesbrough, 2003), user experience (Hassenzahl & Tractinsky, 2006), user-centred design (Von Hippel, 2005), and user-centred open innovation ecosystems (Pallot, 2009a), are all promoting distributed collaboration among organisations and user communities. However, project stakeholders are mainly trained for improving their individual skills through learning experience (i.e. practical exercises, role playing game) rather than getting a live user experience through immersive environments (e.g. Virtual Reality, Serious Games) that could unleash their creativity potential. This chapter introduces the findings of a study on serious gaming, which discusses various aspects of games and explores a number of issues related to the use of innovation games for enabling user co-creation in the context of collaborative innovation and experiential living labs.
PLAYER
Authors: Neves Pedro , Nunes Ricardo Rodrigues , Lima Jorge , Martins Paulo , Paredes Hugo , Varajão João , Morgado Leonel , Gonçalves Ramiro , Fonseca Benjamim , Sanders Robert , Barracho Vera , Bojovic Viktorija , Bošnjak Saša , Bošnjak Zita , Soraci Alberto , Lapajne Urban , Rus Matej , Rahe Martin , Mostert Andre , Carvalho João , Duarte Isabel
Published: March 2012

Serious games are playing an increasing role as educational tools and the last decade witnessed a growing number of proposals in this field. One of the major challenges of the current European societies is to foster an entrepreneurial interest in young people, and the European Commission has been promoting projects that pursue this objective. This chapter presents one such project, PLAYER, in which an educational game was implemented in Facebook with the aim of promoting entrepreneurship by guiding young people in the definition of a business proposal. The game encompasses 4 stages that include the basic description of the business idea, the characterization of its strategies, the filling of a funding quiz, the SWOT analysis, and finally the production of a detailed business plan, for those players to be able to reach the final stage of the game.
Serious Lessons from the Commercial Games Industry
Authors: Beaudoin Dave
Published: March 2012

This chapter seeks to find the common ground between the business oriented design practices of the commercial video game industry and the scholarship based design practices of the serious games segment of the video game industry. The examination of commercial design principles allows the serious game designer to maintain an internal catalog of effective game design tools and the ability to establish a historical perspective on the effectiveness of game mechanics as they have evolved over time. Developers can utilize this perspective to determine game design methods that are likely to establish flow and subsequently improve the conveyance of information to the player.
Security Issues in Massively Multiplayer Online Games
Authors: Cardoso Rui Costa , Gomes Abel
Published: March 2012

Massively Multiplayer Online Games (MMOGs) have been steadily growing in interest over the past decade. Their economic value turns them into one of the main targets of malware and cheating in Internet. This chapter presents and discusses security issues in MMOG environments. The study starts with a preliminary characterization of MMOGs, highlighting their main features. Afterwards, the authors present the security approaches that are applicable to MMOGs, exposing the implications of security breaches and the need for better protection mechanisms. Next, the chapter presents current safety measures and solutions to tackle specific security issues. Finally, security trends that can be relevant in the future are described.