The Infati Data

The ability to perform meaningful empirical studies is of essence in research in spatio-temporal query processing. Such studies are often necessary to gain detailed insight into the functional and performance characteristics of proposals for new query processing techniques. We present a collection of spatio-temporal data, collected during an intelligent speed adaptation project, termed INFATI, in which some two dozen cars equipped with GPS receivers and logging equipment took part. We describe how the data was collected and how it was "modified" to afford the drivers some degree of anonymity. We also present the road network in which the cars were moving during data collection. The GPS data is publicly available for non-commercial purposes. It is our hope that this resource will help the spatio-temporal research community in its efforts to develop new and better query processing techniques

Lift and drag force calculation methods using non‐linear section data. History and recent research

In this article history and development of calculation methods of wing characteristics are presented. The development process includes the beginning in 1918 by Prandtl's classical lifting line theory and leads to resent research. The most attention is paid to non‐linear section data implementation methods in the calculation of finite span wing. The research of Philips and Snyder, Barnes, and Sivells and Neely is discussed. First Published Online: 14 Oct 201

Urbanistinių tendencijų poveikis miesto centro renovacijai

A city centre is an integral part of the overall urban model of the city and its metropolitan area. Therefore, the centre is influenced by the same urban trends. Renovation of the centre and devastated inner areas is related to the chaotic suburbanization trend. This trend is known as urban sprawl. It sucks viable powers (people, investments) from the city, which reflects in the loss of density of the existing urban structure as well as unaesthetic landscapes and threatens the revitalization of the existing urban structures and centres. The research on master plans of cities show their nonconformity to the demographic situation, which makes it impossible to avoid negative consequences of urban spread, growing use of resources, car dependency and pollution. New housing is developed to satisfy market needs, whereas the public interest is ignored. Based on the theoretical and practical research, the authors came to the conclusion that there is a need for a coordinated urban/rural policy and a realistic integrated territorial planning system as well as related monitoring and implementation tools. The EU policy documents and resolutions of National urban forums, which serve as a strong public think tank and monitoring tool in Lithuania, can serve as the guide for the sustainable development. The urban issues should be integrated into the National strategy for 2030. Santrauka Miesto centras yra integruota viso miesto ir jo metropolinės zonos dalis, jį veikia tos pačios urbanistinės tendencijos. Sąlygų miestų centrams renovuoti, degraduojančioms teritorijoms atsinaujinti ir kompaktiškumui pasiekti susiformavimas ar, jei pripažįstame, kad plėtrą galima valdyti, sudarymas, yra susijęs su chaotiškos priemiesčių suburbanizacijos mastu. Nevaldomos priemiesčių suburbanizacijos reiškinys tarptautiniuose mokslo darbuose, politikos dokumentuose vadinamas urbanistiniu sprogimu. Lietuvoje urbanistinis sprogimas išryškėjo XXI a. pradžioje, jį lemia įvairūs sociokultūriniai veiksniai. Atlikti tyrimai rodo, kad urbanistinis sprogimas reikalauja miestų renovacijos išteklių, blogina miestų demografinę situaciją, didina energijos vartojimą, automobilių skaičių bei viešosios infrastruktūros poreikį. Chaotiškos priemiesčių suburbanizacijos problemų neišsprendžia fizinės aplinkos projektavimas, atsietas nuo socialinio, ekonominio planavimo. Jis daugiausia sprendžia komercinius uždavinius. Remdamiesi pasaulinio garso urbanistų teiginiais, ES urbanistinės politikos gairėmis, atliktais Lietuvos urbanistinių tendencijų tyrimais, Vilniaus miesto monitoringo ataskaitos duomenimis, autoriai teigia, kad chaotiškas priemiesčių urbanizavimas yra nei funkcionalus, nei estetiškas, nei palankus miestų urbanistinių struktūrų, tarp jų ir centrų, renovacijai. Jis gali būti įveiktas tik numatant kompleksines, koordinuotas urbanistinės politikos, teritorijų planavimo ir įgyvendinimo priemones. First Publish Online: 22 May 2013 Reikšminiai žodžiai: urbanistinių struktūrų renovacija, urbanistinės raidos tendencijos, sociokultūriniai veiksniai, urbanistinis sprogimas, bendrieji planai, darnioji plėtra

Extensive use of sown meadows ‐ a tool for restoration of botanical diversity

The state of sown meadow communities of different intensity of management (intensive and extensive using) over the period of 10–14 years of running was evaluated at Graisupis Experimental Field Station, Lithuania. Comparison of study data on intensively and extensively used sown meadows enabled to ascertain that intensity of sown meadows succession depends upon the character of grassland management. The positive correlation between the number of vascular plant species and sown meadow age revealed that botanical diversity of species in extensively used grassland restores much faster (rE = 0,95) than under intensive management conditions (rI = 0,59). Ekstensyvusis sėtųjų pievų naudojimas botaninei įvairovei atkurti Santrauka Skirtingo naudojimo pobūdžio (intensyviojo ir ekstensyviojo) sėtųjų pievų augmenijos bendrijų būklė įvertinta ištyrus 10–14 metų naudotų pievų mezofilinus žolynus (Graisupio stotyje, Kėdainių r.). Palyginus intensyviai ir ekstensyviai naudojamų sėtųjų pievų tyrimų duomenis galima teigti, kad žolynų naudojimo pobūdis turi įtakos pievų sukcesijos intensyvumui. Nustatyta teigiama induočių augalų rūšių skaičiaus ir sėtųjų pievų amžiaus koreliacija leidžia teigti, kad ekstensyviai naudojamame žolyne botaninė rūšių įvairovė atsikuria žymiai greičiau (rE = 0,95) nei intensyviojo ūkininkavimo sąlygomis (rI = 0,59). Mažas vienodų induočių augalų rūšių, inventorizuotų skirtingo naudojimo žolynuose, kiekis (23 rūšys) lėmė nedidelę Sörensen koeficiento reikšmę (CS = 0,42), patvirtinančią, kad tirtos pievos yra skirtingų sukcesijos stadijų. Reikšminiai žodžiai: sėtosios pievos, sukcesija, intensyvusis ir ekstensyvusis naudojimas, produktyvumas, botaninės įvairovės atsikūrimas. Экстенсивное пользование сеяных лугов как возможность восстановления ботанического разнообразия Резюме Исследовано состояние интенсивно и экстенсивно пользуемых мезофильных сеяных лугов (10–14-е годы пользования; стационар Грайсупис, Литва). Сравнение результатов исследования сеяных лугов различной интенсивности пользования позволяет утверждать, что характер пользования травостоев оказывает влияние на интенсивность сукцессий лугов. Установленная положительная корреляция количества видов сосудистых растений и возраста сеяного луга показывает, что в экстенсивно используемом травостое ботаническое разнообразие восстанавливается значительно быстрее (rE = 0,95), чем в условиях интенсивного хозяйствования (rI = 0,59). Сравнительно небольшое количество общих видов сосудистых растений (23 вида) в травостоях различной интенсивности пользования определило небольшое значение коэффициента Sörensen (CS = 0,42), подтверждающее наличие различных стадий сукцессий исследованных лугов. Ключевые слова: сеяные луга, сукцессия, интенсивное и экстенсивное пользование, продуктивность, восстановление ботанического разнообразия. Firstd Published Online: 14 Oct 201

Investigation of asphalt texture roughness on friction evolution for wheeled vehicles

Novelty of the research lies in understanding the safety advantages of asphalt made using advanced pavement design process – compact asphalt pavement installation. Variation of tyre–road friction coefficient for this type of pavement design is new and little-studied phenomenon. The present study focuses on the research into tyre–pavement interaction on dry asphalt pavement surfaces to quantify the effect of microprofile on vehicle performance in establishing its braking conditions. The data on a number of different indications (vehicle speed, adhesion coefficients calculated on the basis of braking and friction forces, maximum adhesion coefficient mmax and its ‘minimum’ value m100%) and measurement results generated using SRT-4 device for investigation of two road stretches at intervals of 100 m are presented in this paper. The interdependence analysis of statistical variables mmax and m100% has also been presented to exhibit the use of the method. Following statistical parameters are taken into account during random value analysis in order to assess the homogeneity of data: average value, dispersion, standard deviation, confidence interval around a sample mean, and correlation function. Finally, we provide a map between the adhesion coefficient and the longitudinal slip rate for stable and unstable braking conditions of a vehicle

Quantitative electroencephalography reveals different physiological profiles between benign and remitting-relapsing multiple sclerosis patients

<p>Abstract</p> <p>Background</p> <p>A possible method of finding physiological markers of multiple sclerosis (MS) is the application of EEG quantification (QEEG) of brain activity when the subject is stressed by the demands of a cognitive task. In particular, modulations of the spectral content that take place in the EEG of patients with multiple sclerosis remitting-relapsing (RRMS) and benign multiple sclerosis (BMS) during a visuo-spatial task need to be observed.</p> <p>Methods</p> <p>The sample consisted of 19 patients with RRMS, 10 with BMS, and 21 control subjects. All patients were free of medication and had not relapsed within the last month. The power spectral density (PSD) of different EEG bands was calculated by Fast-Fourier-Transformation (FFT), those analysed being delta, theta, alpha, beta and gamma. Z-transformation was performed to observe individual profiles in each experimental group for spectral modulations. Lastly, correlation analyses was performed between QEEG values and other variables from participants in the study (age, EDSS, years of evolution and cognitive performance).</p> <p>Results</p> <p>Nearly half (42%) the RRMS patients showed a statistically significant increase of two or more standard deviations (SD) compared to the control mean value for the beta-2 and gamma bands (F = 2.074, p = 0.004). These alterations were localized to the anterior regions of the right hemisphere, and bilaterally to the posterior areas of the scalp. None of the BMS patients or control subjects had values outside the range of ± 2 SD. There were no significant correlations between these values and the other variables analysed (age, EDSS, years of evolution or behavioural performance).</p> <p>Conclusion</p> <p>During the attentional processing, changes in the high EEG spectrum (beta-2 and gamma) in MS patients exhibit physiological alterations that are not normally detected by spontaneous EEG analysis. The different spectral pattern between pathological and controls groups could represent specific changes for the RRMS patients, indicative of compensatory mechanisms or cortical excitatory states representative of some phases during the RRMS course that are not present in the BMS group.</p

Migraine and psychiatric comorbidity: a review of clinical findings

Migraine is an extremely common disorder. The underlying mechanisms of this chronic illness interspersed with acute symptoms appear to be increasingly complex. An important aspect of migraine heterogeneity is comorbidity with other neurological diseases, cardiovascular disorders, and psychiatric illnesses. Depressive disorders are among the leading causes of disability worldwide according to WHO estimation. In this review, we have mainly considered the findings from general population studies and studies on clinical samples, in adults and children, focusing on the association between migraine and psychiatric disorders (axis I of the DSM), carried over after the first classification of IHS (1988). Though not easily comparable due to differences in methodology to reach diagnosis, general population studies generally indicate an increased risk of affective and anxiety disorders in patients with migraine, compared to non-migrainous subjects. There would also be a trend towards an association of migraine with bipolar disorder, but not with substance abuse/dependence. With respect to migraine subtypes, comorbidity mainly involves migraine with aura. Patients suffering from migraine, however, show a decreased risk of developing affective and anxiety disorders compared to patients with daily chronic headache. It would also appear that psychiatric disorders prevail in patients with chronic headache and substance use than in patients with simple migraine. The mechanisms underlying migraine psychiatric comorbidity are presently poorly understood, but this topic remains a priority for future research. Psychiatric comorbidity indeed affects migraine evolution, may lead to chronic substance use, and may change treatment strategies, eventually modifying the outcome of this important disorder

Diabetes influence to mandibular and maxilar jaw implant prosthetick results

Diabetes influence to mandibular and maxilar jaw implant prosthetick results

Improvement of customer logistical service of JSC "Ugnesa"

Darbe aptariami klientų logistinio aptarnavimo proceso teoriniai aspektai, vykdomas tyrimas, kurio metu nustatomos UAB "Ugnesa" klientų aptarnavimo gerinimo galimybės. Nustatytos trys didžiausios įmonės klientų logistinio aptarnavimo problemos UAB "Ugnesa". Darbe yra nustatytos priemonės, kurias taikant galima pagerinti įmonės klientų logistinį aptarnavimą.The theoretical aspects of the customer logistics service process are discussed in the work, a research is carried out, during which the possibilities of improving the customer service of JSC "Ugnesa" are determined. The three biggest problems of the company's customer logistics service for UAB "Ugnesa" have been identified. The paper identifies measures that can improve the logistics service of the company's customers.Bioekonomikos plėtros fakultetasVerslo ir kaimo vystymosi tyrimų instituta