cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Streptococcus agalactiae adapts to glucose stress conditions by modulating gene expression profile
Creators: name: Di Palo, Benedetta <1984>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: BIO/11 Biologia molecolare

description: Diabetes mellitus is considered a risk factor for Group B Streptococcus (GBS) infections. Typically, this pathology is associated to high glucose levels in the bloodstream. Although clinical evidences support this notion, the physiological mechanisms underlying GBS adaptation to such conditions are not yet defined. In the attempt to address this issue, we performed comparative global gene expression analysis of GBS grown under glucose-stress conditions and observed that a number of metabolic and virulence genes was differentially regulated. Of importance, we also demonstrated that by knocking-out the csrRS locus the transcription profile of GBS grown in high-glucose conditions was profoundly affected, with more than a third of glucose-dependent genes, including the virulence factor bibA, found to be controlled by this two-component system. Furthermore, in vitro molecular analysis showed that CsrR specifically binds to the bibA promoter and the phosphorilation increases the affinity of the regulator to this promoter region. Moreover, we demonstrated that CsrR acts as a repressor of bibA expression by binding to its promoter in vivo. In conclusion, this work by elucidating both the response of GBS to pathological glucose conditions and the underlined molecular mechanisms will set the basis for a better understanding of GBS pathogenesis.
Assessment of Daily Life Mobility Levels using Wearable Inertial Sensors and Minimun Measured Input Models
Creators: name: Kose, Alper <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: ING-INF/06 Bioingegneria elettronica e informatica

description: Tracking activities during daily life and assessing movement parameters is essential for complementing the information gathered in confined environments such as clinical and physical activity laboratories for the assessment of mobility. Inertial measurement units (IMUs) are used as to monitor the motion of human movement for prolonged periods of time and without space limitations. The focus in this study was to provide a robust, low-cost and an unobtrusive solution for evaluating human motion using a single IMU. 

First part of the study focused on monitoring and classification of the daily life activities. A simple method that analyses the variations in signal was developed to distinguish two types of activity intervals: active and inactive. Neural classifier was used to classify active intervals; the angle with respect to gravity was used to classify inactive intervals. 

Second part of the study focused on extraction of gait parameters using a single inertial measurement unit (IMU) attached to the pelvis. Two complementary methods were proposed for gait parameters estimation. First method was a wavelet based method developed for the estimation of gait events. Second method was developed for estimating step and stride length during level walking using the estimations of the previous method. A special integration algorithm was extended to operate on each gait cycle using a specially designed Kalman filter. 

The developed methods were also applied on various scenarios. Activity monitoring method was used in a PRIN’07 project to assess the mobility levels of individuals living in a urban area. The same method was applied on volleyball players to analyze the fitness levels of them by monitoring their daily life activities. 

The methods proposed in these studies provided a simple, unobtrusive and low-cost solution for monitoring and assessing activities outside of controlled environments.
An interdisciplinary analysis of obesity: theory and empirical evidence
Creators: name: Hansstein, Francesca <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: SECS-P/02 Politica economica

description: The dissertation is structured in three parts. The first part compares US and EU agricultural policies since the end of WWII. There is not enough evidence for claiming that agricultural support has a negative impact on obesity trends. I discuss the possibility of an exchange in best practices to fight obesity. There are relevant economic, societal and legal differences between the US and the EU. However, partnerships against obesity are welcomed. The second part presents a socio-ecological model of the determinants of obesity. I employ an interdisciplinary model because it captures the simultaneous influence of several variables. Obesity is an interaction of pre-birth, primary and secondary socialization factors. To test the significance of each factor, I use data from the National Longitudinal Survey of Adolescent Health. I compare the average body mass index across different populations. Differences in means are statistically significant. In the last part I use the National Survey of Children Health. I analyze the effect that family characteristics, built environment, cultural norms and individual factors have on the body mass index (BMI). I use Ordered Probit models and I calculate the marginal effects.  I use State and ethnicity fixed effects to control for unobserved heterogeneity. I find that southern US States tend have on average a higher probability of being obese. On the ethnicity side, White Americans have a lower BMI respect to Black Americans, Hispanics and American Indians Native Islanders; being Asian is associated with a lower probability of being obese. In neighborhoods where trust level and safety perception are higher, children are less overweight and obese. Similar results are shown for higher level of parental income and education. Breastfeeding has a negative impact. Higher values of measures of behavioral disorders have a positive and significant impact on obesity, as predicted by the theory.
Comportamento dinamico fuori del piano di pareti murarie: influenza della deformabilità degli impalcati
Out-of-plane dynamic behaviour of unreinforced masonry walls: influence of diaphragm flexibility
Creators: name: Gabellieri, Rocco <1975>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: ICAR/09 Tecnica delle costruzioni

description: The aim of this study was to investigate the influence of the diaphragm flexibility on the behavior of out-of-plane walls in masonry buildings. Simplified models have been developed to perform kinematic and dynamic analyses in order to compare the response of walls with different restraint conditions. Kinematic non linear analyses of assemblages of rigid blocks have been performed to obtain the acceleration-displacement curves for walls with different restraint conditions at the top. A simplified 2DOF model has been developed to analyse the dynamic response of the wall  with an elastic spring at the top, following the Housner rigid behaviour hypothesis.  The dissipation of energy is concentrated at every impact at the base of the wall and is modelled through the introduction of the coefficient of restitution. The sets of equations of the possible configurations of the wall, depending on the different positions of the centre of rotation at the base and at the intermediate hinge have been obtained. An algorithm for the numerical integration of the sets of the equations of motion in the time domain has been developed. Dynamic analyses of a set of walls with Gaussian impulses and recorded accelerograms inputs have been performed in order to compare the response of the simply supported wall with the one of the wall with elastic spring at the top. The influence of diaphragm stiffness Kd has been investigated determining the variation of maximum displacement demand with the value of Kd. A more regular trend has been obtained for the Gaussian input than for the recorded accelerograms.
Essays in Behavioral Personnel Economics
Creators: name: Reggiani, Tommaso <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: SECS-P/01 Economia politica

description: The thesis contemplates 4 papers and its main goal is to provide evidence on the prominent impact that behavioral analysis can play into the personnel economics domain.The research tool prevalently used in the thesis is the experimental analysis.The first paper provide laboratory evidence on how the standard screening model–based on the assumption that the pecuniary dimension represents the main workers’choice variable–fails when intrinsic motivation is introduced into the analysis.The second paper explores workers’ behavioral reactions when dealing with supervisors that may incur in errors in the assessment of their job performance.In particular,deserving agents that have exerted high effort may not be rewarded(Type-I errors)and undeserving agents that have exerted low effort may be rewarded(Type-II errors).Although a standard neoclassical model predicts both errors to be equally detrimental for effort provision,this prediction fails when tested through a laboratory experiment.Findings from this study suggest how failing to reward deserving agents is significantly more detrimental than rewarding undeserving agents.The third paper investigates the performance of two antithetic non-monetary incentive schemes on schooling achievement.The study is conducted through a field experiment.Students randomized to the main treatments have been incentivized to cooperate or to compete in order to earn additional exam points.Consistently with the theoretical model proposed in the paper,the level of effort in the competitive scheme proved to be higher than in the cooperative setting.Interestingly however,this result is characterized by a strong gender effect.The fourth paper exploits a natural experiment setting generated by the credit crunch occurred in the UK in the2007.The economic turmoil has negatively influenced the private sector,while public sector employees have not been directly hit by the crisis.This shock–through the rise of the unemployment rate and the increasing labor market uncertainty–has generated an exogenous variation in the opportunity cost of maternity leave in private sector labor force.This paper identifies the different responses.
Undiagnosed disease in decedents with and without schizophrenia: an autopsy-based case-control study
Creators: name: Puntervold, Oscar Emil
name: Kruckow, Line
name: Banner, Jytte
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Individuals with schizophrenia (SCZ) suffer from higher morbidity and mortality than the general population. Some of this is due to concurrent somatic disease. To identify and compare the somatic comorbidities antemortem (AM) and postmortem (PM) in autopsied decedents with SCZ and with no mental illness (NMI), using the Charlson Comorbidity Index (CCI). A total of 106 autopsied decedents with SCZ and 156 decedents with NMI were included. AM diagnoses were sampled from Danish national health registers. PM diagnoses were included from forensic autopsies. Negative binomial regression models were used to test associations between age, sex, SCZ diagnosis, manner of death and the CCI score both AM and PM. The CCI score increased significantly from AM to PM for both decedents with SCZ and NMI (SCZ, AM 0.669 vs PM 1.208, p = 0.008) (NMI, AM 0.519 vs PM 1.218, p = 0.000). Regression analysis showed that age was significantly associated with the CCI score both AM and PM (AM, OR 1.044 [1.029–1.060] p ≤ 0.001) (PM, OR 1.028 [1.015–1.041], p ≤ 0.001). A diagnosis of SCZ was correlated with the CCI score AM but not PM (AM, OR 1.880 [1.207–2.928], p = 0.005) (PM, OR 1.170 [0.828–1.654], p = 0.374). The autopsies revealed undiagnosed diseases in both decedents with SCZ and NMI. The diseases were primarily of cardiovascular, pulmonary and gastrointestinal origin and may have contributed to premature mortality. Age was the only covariate significantly associated with the CCI score both AM and PM; the SCZ diagnosis was positively correlated to the CCI score before death.
Joy of living through exercise - a qualitative study of clinically referred adolescents’ experiences of moderate to vigorous exercise as treatment for depression
Creators: name: Serrander, Maria
name: Bremander, Ann
name: Jarbin, Håkan
name: Larsson, Ingrid
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Depression is common and rising in adolescents. Recent meta-analyses indicate a moderate effect of exercise on depression symptoms. Clinically referred adolescents and their experiences of an exercise intervention have rarely been studied. The aim of this study was to describe clinically referred adolescents’ experience of moderate to vigorous exercise as a treatment for depression. A total of 16 clinically referred adolescents with persistent major depression, who had taken part in a 14-week aerobic exercise intervention of moderate to vigorous intensity, were interviewed. Data was analysed by latent qualitative content analysis. After taking part in the exercise intervention the adolescents expressed enhanced participation in daily life and joy of living by demonstrating commitment and a sense of empowerment. The categories contained both improved vitality and structure of everyday life as well as improved self-esteem and self-control. Participation in the exercise intervention changed their self-image, relationships, school performance, and family life. The adolescents highlighted that exercising in a group was beneficial, giving security and structure. Adolescents with persistent depression experienced several beneficial aspects of participating in an aerobic group exercise of moderate to vigorous intensity.
Maremoti in bacini limitati
Creators: name: Gallazzi, Sara Carolina <1971>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: GEO/10 Geofisica della terra solida

description: The work of my thesis is focused on the impact of tsunami waves in limited basins.
By limited basins I mean here those basins capable of modifying significantly the tsunami signal with respect to the surrounding open sea. Based on this definition, we consider limited basins not only harbours but also straits, channels, seamounts and oceanic shelves.
I have considered two different examples, one dealing with the Seychelles Island platform in the Indian Ocean, the second focussing on the Messina Strait and the harbour of the Messina city itself (Italy).
The Seychelles platform is differentiated at bathymetric level from the surrounding ocean, with rapid changes from 2 km to 70 meters over short horizontal distances. The study of the platform response to the tsunami propagation is based on the simulation of the mega-event occurred on 26 December 2004. Based on a hypothesis for the earthquake causative fault, the ensuing tsunami has been numerically simulated. I analysed synthetic tide gauge records at several virtual tide gauges aligned along the direction going from the source to the platform. A substantial uniformity of tsunami signals in all calculated open ocean tide-gauge records is observed, while the signals calculated in two points of the Seychelles platform show different features both in terms of amplitude and period of the perturbation. To better understand the content in frequency of different calculated marigrams, a spectral analysis was carried out. In particular the ratio between the calculated tide-gauge records spectrum on the platform and the average tide-gauge records in the open ocean was considered. The main result is that, while in the average spectrum in the open ocean the fundamental peak is related to the source, the platform introduces further peaks linked both to the bathymetric configuration and to coastal geometry. 
The Messina Strait represents an interesting case because it consists in a sort of a channel open both in the north and in the south and furthermore contains the limited basin of the Messina harbour. In this case the study has been carried out in a different way with respect to the Seychelles case. The basin was forced along a boundary of the computational domain with sinusoidal functions having different periods within the typical tsunami frequencies. The tsunami has been simulated numerically and in particular the tide-gauge records were calculated for every forcing function in different points both externally and internally of the channel and of the Messina harbour. Apart from the tide-gauge records in the source region that almost immediately reach stationarity, all the computed signals in the channel and in the Messina harbour present a transient variable amplitude followed by a stationary part. Based exclusively on this last part, I calculated the amplification curves for each site. I found that the maximum amplification is obtained for forcing periods of approximately 10 minutes.
Effects of Phytophthora sojae inoculation under flooded conditions on growth of soybean seedlings
Creators: name: Tada, Terufumi
name: Kato, Momo
name: Tanaka, Chihiro
name: Shiraiwa, Tatsuhiko
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology
subject: 60506 Virology

description: Phytophthora root and stem rot due to Phytophthora sojae is a major constraint of soybean production. This study evaluated the combined effect of P. sojae inoculation and flooding on growth of soybean seedlings. The soybean cultivar ‘Enrei’ was grown in a greenhouse in pots containing vermiculite and containers of field soil. The plants were inoculated with two P. sojae isolates and subjected to flooding. The ratio of dead to live plants ranged from 0 to 0.32 across all treatments. Pathogen inoculation caused a significantly shorter maximum root length (MRL) in all the three experiments. MRL and shoot and root dry weight were affected by interaction between inoculation and flooding in one experiment with vermiculite media. Flooding affected the growth parameters only in the experiment with soil media. The results indicated that root of the soybean seedlings that survived from P. sojae infection grew less well than the non-inoculated plants.
Effects of Resources Exploitation on Water Quality: case studies in Salt Water Intrusion and Acid Mine Drainage
Creators: name: Kralj, Martina <1981>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: GEO/08 Geochimica e vulcanologia

description: Throughout the world, pressures on water resources are increasing, mainly as a result of human activity. Because of their accessibility, groundwater and surface water are the most used reservoirs. The evaluation of the water quality requires the identification of the interconnections among the water reservoirs, natural landscape features, human activities and aquatic health.
This study focuses on the estimation of the water pollution linked to two different environmental issues: salt water intrusion and acid mine drainage related to the exploitation of natural resources.
Effects of salt water intrusion occurring in the shallow aquifer north of Ravenna (Italy) was analysed through the study of ion- exchange occurring in the area and its variance throughout the year, applying a depth-specific sampling method. In the study area were identified ion exchange, calcite and dolomite precipitation, and gypsum dissolution and sulphate reduction as the main processes controlling the groundwater composition. High concentrations of arsenic detected only at specific depth indicate its connexion with the organic matter.
Acid mine drainage effects related to the tin extraction in the Bolivian Altiplano was studied, on water and sediment matrix. Water contamination results strictly dependent on the seasonal variation, on pH and redox conditions. During the dry season the strong evaporation and scarce water flow lead to low pH values, high concentrations of heavy metals in surface waters and precipitation of secondary minerals along the river, which could be released in oxidizing conditions as demonstrated through the sequential extraction analysis. The increase of the water flow during the wet season lead to an increase of pH values and a decrease in heavy metal concentrations, due to dilution effect and, as e.g. for the iron, to precipitation.
title: Effects of grazing by cattle and sheep on tiller dynamics and herbage production
title: The effects of grazing by cattle and sheep on tiller dynamics and herbage production
titleType: AlternativeTitle
Creators: name: Lipita, Wilfred G.
Publisher: name: The University of Edinburgh
Year: 1982
Subjects: subject: Annexe MSc Digitisation Project 2022 Block 48
subject: Ryegrass
subject: Tiller dynamics
subject: Herbage production
subject: Sheep-grazed
subject: Cattle-grazed

description: Ryegrass (Lolium perenne) tiller production and loss were investigated on mixed ryegrass (Lolium perenne)/annual meadow grass (Poa annua)/white clover (Trifolium repens) swards with similar herbage mass grazed separately by sheep and cattle. The swards were maintained within the range of 3.5 cm surface height and 1200 kg OM ha⁻¹ under continuous stocking management. Sheep-grazed swards had higher herbage mass and greater total tiller density than cattle-grazed swards. There were more ryegrass tillers in sheep-grazed swards than in cattle-grazed swards but more clover stolons in cattle-grazed swards than in sheep-grazed swards. Sheep-grazed swards had higher rate of tiller appearance, a lower rate of tiller loss, and a higher rate of net tiller accumulation than cattle-grazed swards. Although these differences in rates of tiller turnover were not significant, their cumulative effects were substantial as evidenced by the greater herbage mass and tiller density in sheep-grazed swards than in cattle- grazed swards. The implications of these results to evidence on herbage production and loss under grazing by cattle and sheep are discussed.
Corrosion and passivation behaviour of noble metal coated anodes in copper electrowinning applications
Creators: name: Wensley, Donald Arthur
Publisher: name: University of British Columbia
Year: 2010

description: Evaluation of the changes in loading and composition of platinum/ iridium alloy coated titanium anodes employed in conditions comparable to those encountered in electrowinning of copper from highly acidic electrolytes, typical of those produced from sol vent-extraction treatment of leach liquors, was accomplished by means of an X-ray fluorescence spectroscopic technique. Under continuous operation at a constant anode current in 2M H₂SO₄ or in 2M H₂SO₄ + 0.5M CuSO₄ electrolytes, the loss of coating metal from the particular anode material chosen for this study is predominantly electrochemical in nature, with platinum showing preferential attack. Anode materials from other sources, of nominally similar composition and manufacture, show varying degrees of mixed mechanical and electrochemical corrosion. Operation with pulsed current or addition of thiourea is found to promote accelerated dissolution of the coating metals. On imminent anode falure the mechanism of coating metal loss becomes predominantly mechanical in nature. The development of surface oxygen coverage on the alloy coatings during anodic polarization in sulfuric acid solutions, which in turn determines the nature of the corrosion and passivation (defined as the increase in anode potential with time) is analogous to the case of unalloyed platinum metal, showing growth of oxygen coverage to the equivalent of only 2-3 monolayers with prolonged anodization. In particular, the alloy coatings behave in a similar manner to platinum metal with respect to the formation and removal of surface oxygen coverage, thus permitting the determination of electrochemically active surface areas by means of formation and stripping of oxygen monolayers.
Effect of using drip irrigation on the growth, yield and its components of soybean grown in a low rainfall region in Japan
Creators: name: Chomsang, Kanchana
name: Morokuma, Masahiro
name: Agarie, Sakae
name: Toyota, Masanori
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Field experiments were carried out for 3 years to assess the effect of using drip irrigation on the growth and yield of two Japanese soybean cultivars in Kagawa Prefecture, which has the second-lowest rainfall in Japan. The treatments were drip irrigation (Drip) and rainfed (Rainfed) from the blooming stage to the full-seed stage. The largest seed yield was achieved in 2017, followed by 2018 and 2016. This order corresponded to the total water input (TWI, the sum of effective rainfall and irrigation) throughout cultivation. TWI was the main factor affecting the variation of yield and its components among years. Similarly, the higher TWI in Drip than in Rainfed contributed to the higher yield in Drip than in Rainfed within each year. ANOVA detected a significant effect of drip irrigation on total seed yield, above-ground dry matter (AGDM) at maturity, and numbers of branches, nodes, and fertile pods. AGDM had a significant correlation with the mean crop growth rate (CGR) during the treatment, and CGR was closely correlated with the mean net assimilation rate (NAR). Significant positive correlation among NAR, radiation use efficiency, and leaf water potential suggested that drip irrigation prevented the decrease of plant water status that contributed to maintain dry matter production. The advantage of using drip irrigation for soybean cultivation at the experiment site would be suppressing the decrease in yield in years with low rainfall rather than achieving higher yield than standard in years with normal or high rainfall. Abbreviations: AGDM, aboveground dry matter; CGR, crop growth rate; CISR, cumulative intercepted solar radiation; DAS, days after sowing; ETa, actual evapotranspiration; ETr, reference evapotranspiration; FIPAR, fraction of intercepted photosynthetically active radiation; LAI, leaf area index; ΨL, leaf water potential; mLAI, mean leaf area index; NAR, net assimilation rate; PAR, photosynthetically active radiation; PCC, percent of canopy coverage; RUE, radiation use efficiency; TWI, total water input
Data Mining in Clinical Practice for the Quantification of Motor Impairment in Parkinson's Disease
Creators: name: Palmerini, Luca <1981>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: ING-INF/06 Bioingegneria elettronica e informatica

description: Advances in biomedical signal acquisition systems for motion analysis have led to lowcost and ubiquitous wearable sensors which can be used to record movement data in different settings. This implies the potential availability of large amounts of quantitative data. It is then crucial to identify and to extract the information of clinical relevance from the large amount of available data. This quantitative and objective information can be an important aid for clinical decision making. Data mining is the process of discovering such information in databases through data processing, selection of informative data, and identification of relevant patterns.
The databases considered in this thesis store motion data from wearable sensors (specifically accelerometers) and clinical information (clinical data, scores, tests). The main goal of this thesis is to develop data mining tools which can provide quantitative information to the clinician in the field of movement disorders. This thesis will focus on motor impairment in Parkinson's disease (PD).
Different databases related to Parkinson subjects in different stages of the disease were considered for this thesis. Each database is characterized by the data recorded during a specific motor task performed by different groups of subjects.
The data mining techniques that were used in this thesis are feature selection (a technique which was used to find relevant information and to discard useless or redundant data), classification, clustering, and regression. 
The aims were to identify high risk subjects for PD, characterize the differences between early PD subjects and healthy ones, characterize PD subtypes and automatically assess the severity of symptoms in the home setting.
Trattamento delle lesioni osteocondrali di grado I e II mediante infiltrazione intra-articolare di fattori di crescita autologhi (plasma rich in platelets)
Treatment of osteochondral lesions grade 1 and 2 using Platelet Rich Plasma injections in a Rabbit model
Creators: name: Bevoni, Roberto <1974>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: MED/33 Malattie apparato locomotore

description: The use of  Platelet-rich plasma (PRP), a platelet concentrate made of autogenous blood, is becoming use in the treatment of some orthopaedic diseases. The aim of this study is to assess the effect of PRP on articular
cartilage defects in a rabbit model (10 subjects). Twenty osteochondral defects created in the femoropatellar groove, were in ten cases left untreated and in ten cases treated with autogenous PRP. PRP was obtained using a double centrifugation of the rabbit’s blood harvested before the operation. 30 days after the lesion was made in both knee, the left one in each rabbit was treated by a PRP injection, followed by other two injection at 45 and 60 days. Tissue specimens were assessed by macroscopic examination and histological evaluation, that showed a better healing of the lesions in the knee treated with PRP injections.
Ecophysiology of drill-seeded rice under reduced nitrogen fertilizer and reduced irrigation during El Niño in Central Colombia
Creators: name: Deshmukh, Vivek
name: Kamoshita, Akihiko
name: Lopez-Galvis, Lorena
name: Pineda, Dario
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Improvement of efficiencies of N fertilizer and irrigation water is needed for large-scale market-oriented rice cultivation without puddling practice as in American continents. Effects of reductions of N fertilizer and irrigation water on grain yield of drill-seeded rice on zero-leveled fields were quantified across five N levels (220, 180 [two sources with 5 or 3 splits], 140, and 0 kg N ha−1) and three irrigation strategies (irrigating every 3, 6, or 8 days; W1, W2, and W3, respectively) in dry and wet seasons during an El Niño event in Central Colombia. Reducing the N application rate from 180 kg N ha−1 to 140 kg N ha−1 (22% reduction) did not reduce yield in either season in spite of slightly reduced N uptake, owing to increased N use efficiency in all irrigation strategies. Three split of N fertilizer with slow release urea (180 kg N ha−1) and with basal organic amendment did not reduce yield compared with the conventional 5 split method. Yield in dry season reduced under the 2 water-saving strategies (W2, W3) almost proportionally to the reduced water supply (irrigation + rainfall) by flowering. In wet season, yield in mild water saving (W2, with 26% water saving) was similar to conventional irrigation management (W1), leading to its highest water productivity. Physiological parameters (e.g. stomatal conductance, total N uptake) were greater in wet season than in dry season. This study showed potential reduction of N fertilizer and conditions of climate for water-saving in drill-seeded rice production in Colombia.
Chemical and kinematical properties of Blue Straggler stars in Galactic globular clusters
Creators: name: Lovisi, Loredana <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: FIS/05 Astronomia e astrofisica

description: Blue straggler stars (BSSs) are brighter and bluer (hotter) than the main-sequence (MS) turnoff and they are known to be more massive than MS stars.Two main scenarios for their formation have been proposed:collision-induced stellar mergers (COL-BSSs),or mass-transfer in binary systems (MT-BSSs).Depleted surface abundances of C and O are expected for MT-BSSs,whereas no chemical anomalies are predicted for COL-BSSs.Both MT- and COL-BSSs should rotate fast, but braking mechanisms may intervene with efficiencies and time-scales not well known yet,thus preventing a clear prediction of the expected rotational velocities.Within this context,an extensive survey is ongoing by using the multi-object spectrograph FLAMES@VLT,with the aim to obtain abundance patterns and rotational velocities for representative samples of BSSs in several Galactic GCs.A sub-population of CO-depleted BSSs has been identified in 47 Tuc,with only one fast rotating star detected.For this PhD Thesis work I analyzed FLAMES spectra of more than 130 BSSs in four GCs:M4,NGC 6397,M30 and ω Centauri.This is the largest sample of BSSs spectroscopically investigated so far.Hints of CO depletion
have been observed in only 4-5 cases (in M30 and ω Centauri),suggesting either that the majority of BSSs have a collisional origin,or that the CO-depletion is a transient phenomenon.Unfortunately,no conclusions in terms
of formation mechanism could be drawn in a large number of cases,because of the effects of radiative levitation. Remarkably,however,this is the first time that evidence of radiative levitation is found in BSSs hotter than 8200 K.Finally, we also discovered the largest fractions of fast rotating BSSs ever observed in any GCs:40% in M4 and 30% in ω Centauri.While not solving the problem of BSS formation,these results provide invaluable information about the BSS physical properties,which is crucial to build realistic models of their evolution.
МАРКАЗИЙ ҚИЗИЛҚУМНИНГ МИЛЛИЙ ТАБИАТ БОҒИ ФЛОРАСИ ВА ЯЙЛОВ ИНҚИРОЗИДА ФИТОМЕЛИОРАЦИЯНИНГ ЎРНИ
Creators: name: Хакимов, Ўктам
name: Адилов, Собит
name: Маманазаров, Жалолиддин
name: Қодиров, Собиржон
name: Махмудов, Бобир
Publisher: name: Zenodo
Year: 2024

description: Жаҳон миқёсида олиб қарайдиган бўлсак чорва молларини доимий боқиш натижасада содир бўладиган яйловлар трансформациясини баҳолаш ва яйловларнинг келажагини башоратлашнинг функсионал индикаторларини аниқлаш ва консептуал моделларини ишлаб чиқишга алоҳида эътибор берилмоқда.
Deep Image Compression Using Scene Text Quality Assessment
Creators: name: Uchigasaki, Shohei
name: Miyazaki, Tomo
name: Omachi, Shinichiro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Image compression is a fundamental technology for Internet communication engineering. However, a high compression rate with general methods may degrade images, resulting in unreadable texts. In this paper, we propose an image compression method for maintaining text quality. We developed a scene text image quality assessment model to assess text quality in compressed images. The assessment model iteratively searches for the best-compressed image holding high-quality text. Objective and subjective results showed that the proposed method was superior to existing methods. Furthermore, the proposed assessment model outperformed other deep-learning regression models.
description: Accepted by Pattern Recognition, 2023
Electroslag welding : the effect of slag composition on mechanical properties
Creators: name: Mitchell, James S.
Publisher: name: University of British Columbia
Year: 2010

description: Previous studies of the properties of electroslag weld metal have been done using electroslag remelted ingots made under welding conditions. This procedure assumes the electrical and thermal regimes of these processes to be equivalent. To test this assumption an experimental program was devised in which the remelted metal of an ingot and weld made with each of three slag systems was analysed and the mechanical properties examined. The results show that each process imparted different properties to the remelted metal by alloy and inclusion modification. Consequently the above assumption was proved invalid. Special consideration was given to the effect of inclusion composition and overall distribution toward mechanical properties.
Chortheater. Genesi di un modello
Tipologie corali nel Novecento
Chortheater. A model genesis. Choral Typoligies in the 20th Century
Creators: name: Ossicini, Charlotte <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: L-ART/05 Discipline dello spettacolo

description: In the Nineties year in the German Studies’ area appears a new reflection around the theatrical chorus thank to the activity of theatrical personalities as Heiner Müller, Einar Schleef, Elfriede Jelinek or Christoph Marthaler. So Hans Thies Lehmann, in his compendium about the Postdramatic Theater (Hans-Thies Lehmann, Postdramatisches Theater, Verlag der Autoren, Frankfurt am Main 1999) advances the new category of the Chortheater (Chor Theatre) to explain e new form of drama and performative event; again in 1999 appear the important essay of Detlev Baur (Detlev Baur, Der Chor im Theater des 20. Jahrhunderts. Typologie des theatralen Mittels Chor, Niemeyer, Tübingen 1999), that gives an important device about this instrument but without giving the reasons of the its modifications in such different historical times. Then in 2004, Erika Fischer-Lichte, (Theatre, Sacrifice, Ritual. Exploring Forms of Political Theatre, Routledge, London-New York 2005), reflects about the connection between ritual and theatre in the 20th Century.  Thank to this studies the search aim was to give a new story of the chorus as theatrical and performative tool, in his liminal essence in creating immersive or alienating theatrical relation with the audience and to give specific features to distinguish it from general categories such as choral theatre o ensemble theatre.
Aufbau eines FID-Community-Wikis.
Creators: name: Erdogan, Berfu
name: Hornung, Christoph
name: Leiner, Nele
name: Trapp, Markus
name: Zepf, Robert
Publisher: name: Informationspraxis
Year: 2021

description: Das beschriebene Projekt verfolgt eine detaillierte Kartierung der Services und technischer Infrastrukturen aller DFG-geförderten Fachinformationsdienste. Dadurch soll die Bildung von Kooperationen unterstützt werden sowie die Erhöhung der Nachnutzbarkeit und Interoperabilität der Angebote und Entwicklungen. Die Umsetzung knüpft an das öffentliche webis-Wiki an, das an der SUB Hamburg betrieben wird und die derzeit einzige übergreifende Informationsstruktur der Fachinformationsdienste ist. Es wurde um ein FID-Community-Wiki erweitert, das dem wechselseitigen Austausch von Erfahrungen und Informationen der Fachinformationsdienste dient. Der Aufbau und die gewonnenen Erkenntnisse des Projektes werden hier skizziert.
description: Informationspraxis, Bd. 7 Nr. 2 (2021)
The weak coupling limit of disordered copolymer models
Creators: name: Caravenna, Francesco
name: Giacomin, Giambattista
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: A copolymer is a chain of repetitive units (monomers) that are almost identical, but they differ in their degree of affinity for certain solvents. This difference leads to striking phenomena when the polymer fluctuates in a nonhomogeneous medium, for example, made of two solvents separated by an interface. One may observe, for instance, the localization of the polymer at the interface between the two solvents. A discrete model of such system, based on the simple symmetric random walk on $\mathbb {Z}$, has been investigated in [Bolthausen and den Hollander, Ann. Probab. 25 (1997), 1334-1366], notably in the weak polymer-solvent coupling limit, where the convergence of the discrete model toward a continuum model, based on Brownian motion, has been established. This result is remarkable because it strongly suggests a universal feature of copolymer models. In this work, we prove that this is indeed the case. More precisely, we determine the weak coupling limit for a general class of discrete copolymer models, obtaining as limits a one-parameter [$α\in(0,1)$] family of continuum models, based on $α$-stable regenerative sets.
description: Published in at http://dx.doi.org/10.1214/10-AOP546 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Clarifying Some Remaining Questions in the Anomaly Puzzle
Creators: name: Huang, Xing
name: Parker, Leonard
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss several points that may help to clarify some questions that remain about the anomaly puzzle in supersymmetric theories. In particular, we consider a general N=1 supersymmetric Yang-Mills theory. The anomaly puzzle concerns the question of whether there is a consistent way to put the R-current and the stress tensor in a single supercurrent, even though in the classical theory they are in the same supermultiplet. As is well known, the classically conserved supercurrent bifurcates into two supercurrents having different anomalies in the quantum regime. The most interesting result we obtain is an explicit expression for the lowest component of one of the two supercurrents in 4-dimensional spacetime, namely the supercurrent that has the energy-momentum tensor as one of its components. This expression for the lowest component is an energy-dependent linear combination of two chiral currents, which itself does not correspond to a classically conserved chiral current. The lowest component of the other supercurrent, namely, the R-current, satisfies the Adler-Bardeen theorem. The lowest component of the first supercurrent has an anomaly that we show is consistent with the anomaly of the trace of the energy-momentum tensor. Therefore, we conclude that there is no consistent way to put the R-current and the stress tensor in a single supercurrent in the quantized theory. We also discuss and try to clarify some technical points in the derivations of the two-supercurrents in the literature. These latter points concern the significance of infrared contributions to the NSVZ beta-function and the role of the equations of motion in deriving the two supercurrents.
description: 22 pages, no figure. v2: minor changes. v3: sections re-organized. new subsections (IVA, IVB) added. references added
Expansive actions on uniform spaces and surjunctive maps
Creators: name: Ceccherini-Silberstein, Tullio
name: Coornaert, Michel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Group Theory (math.GR)
subject: Dynamical Systems (math.DS)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 54E15, 37B15, 68Q80

description: We present a uniform version of a result of M. Gromov on the surjunctivity of maps commuting with expansive group actions and discuss several applications. We prove in particular that for any group $Γ$ and any field $\K$, the space of $Γ$-marked groups $G$ such that the group algebra $\K[G]$ is stably finite is compact.
description: 21 pages
Da una sponda all'altra del Mediterraneo: percorsi migratori femminili
Creators: name: Lacarpia, Paola <1978>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: SPS/10 Sociologia dell'ambiente e del territorio

description: Until the end of the 1970s international migrants were perceived and analysed mainly within the frame of their lives in the host country, or as managing their lives
and choices caught in a dilemma “between two cultures”. More recently, this approach has been challenged by an image of diasporic communities composed of individuals who “have collective homes away from home”. Migrants have become icons of hybridity and the metaphor of “border crossing”, the symbol of liberatory articulations between place, culture and identity. Migrants, it is also argued, have become transnational as they manage to live simultaneously in two countries. The research has the aim to study the migration process of the women who come
from North Africa to Bologna. In particular, it investigates migrant women‘s relations with their adopted country and how their cultural practices are shaped by
the transnational dimension of their lives. It was studied the journey of the migrant women’s lives across two countries and how their identities are going to change
because of the experience of the migration. Migrant women are engaged in various kinds of practices and experiences through which they connect their country of origin and of residence. So this research focuses on the changes in the migrant women’s lives and the construction of their new identity. In particular, the research illustrates the development of a new notion of modernity, underlining how the migrant women construct a model of modernity
that expresses a constant negotiation among diverse cultural models. The notion of modernity is not produced in opposition to tradition and religion, but is articulated
with them in complex and diverse ways. The multiple ways in which migrant women understand modernity reflect their divergent identity’s renegotiation processes within the new society where they live.