512 research outputs found
Utilizarea instrumentelor financiare derivate de catre banci in acoperirea riscurilor de dobânda
Bancile pot utiliza diferite instrumente financiare derivate pentru acoperirea riscurilor operationale. Pentru realizarea acoperirii este necesara determinarea pozitiei de risc a bancii, in functie de care se realizeaza hedgingul.risc; dobanda; futures; optiuni; hedging
Embodying an Ethic of Care: Dance and the Question of Imprisonment
Dance is a powerful artform that has been used as an embodied tool for social change and commentary throughout history. Movement and performance has been a vehicle for artists to process and dialogue about the injustices and societal truths around them and continues to be a viable and effective tool for illustrating the point of view of concerned and engaged citizens. Through this medium, artists have been able to bring people together for various causes and movements. In (heal)ium, dance film is used as a vehicle for discourse about alternatives to the carceral state. The film explores the topics of community violence and conflict and how solutions can be found to address harm without removing people from society. At its core, (heal)ium is an abolitionist dance work. One of the most pressing questions of today’s citizens is how we will improve or remove the Prison Industrial Complex to better facilitate the rehabilitation of people convicted of crimes and integrate them into society as functioning and flourishing citizens. This thesis utilizes dance film to interrogate the efficacy of the Prison Industrial Complex as rehabilitation facilities dedicated to reforming individuals who have committed crimes
A content analysis of how participatory decision making and teamwork affects employee satisfaction and employee commitment
Includes bibliographical references
A portable whole canopy gas exchange system for several mature field-grown grapevines
Six flow-through chambers (8 m3 volume) were built to measure gas exchange (CO2 and H2O) of whole vines under deficit irrigation regimes that imposed water stress at different stages of berry development. Chamber design and materials were selected to minimize environmental effects, and to accommodate the trellis of a mature, field-grown vine. A framed design allowed the chambers to withstand sustained winds up to 13 m s-1, overcoming one disadvantage of the balloon-type chambers. At mid-canopy height, 1.6 m, air temperature inside the chamber was no more than 2.5 °C higher than at the same height in the canopy of an unchambered vine. Over 24 h, solar radiation inside the chamber was 90 % of ambient. For vines irrigated according to standard industry practice, maximum values of net CO2 exchange approached 12 μmol m-2 s-1, whereas in water-stressed vines the maxima approached only 6.5 μmol m-2 s-1. Transpiration among water-stressed plants was reduced, with maximum rates at 1 mmol m-2 s-1 while vines under standard irrigation were at 2.5 mmol m-2 s-1. Apparent light saturation for canopy photosynthesis was approximately 1200 μmol m-2 s-1 PPFD (photosynthetic photon flux density) for vines under standard irrigation, and about 800 μmol m-2 s-1 PPFD for vines under water stress.
Application of active heat pulse method with fiber optic temperature sensing for estimation of wetting bulbs and water distribution in drip emitters.
Through the use of the Distributed Fiber Optic Temperature Measurement (DFOT) method, it is possible to measure the temperature in small intervals (on the order of centimeters) for long distances (on the order of kilometers) with a high temporal frequency and great accuracy. The heat pulse method consists of applying a known amount of heat to the soil and monitoring the temperature evolution, which is primarily dependent on the soil moisture content. The use of both methods, which is called the active heat pulse method with fiber optic temperature sensing (AHFO), allows accurate soil moisture content measurements.
In order to experimentally study the wetting patterns, i.e. shape, size, and the water distribution, from a drip irrigation emitter, a soil column of 0.5 m of diameter and 0.6 m high was built. Inside the column, a fiber optic cable with a stainless steel sheath was placed forming three concentric helixes of diameters 0.2 m, 0.4 m and 0.6 m, leading to a 148 measurement point network. Before, during, and after the irrigation event, heat pulses were performed supplying electrical power of 20 W/m to the steel.
The soil moisture content was measured with a capacitive sensor in one location at depths of 0.1 m, 0.2 m, 0.3 m and 0.4 m during the irrigation. It was also determined by the gravimetric method in several locations and depths before and right after the irrigation.
The emitter bulb dimensions and shape evolution was satisfactorily measured during infiltration. Furthermore, some bulb's characteristics difficult to predict (e.g. preferential flow) were detected. The results point out that the AHFO is a useful tool to estimate the wetting pattern of drip irrigation emitters in soil columns and show a high potential for its use in the field
Motor imagery-based brain-computer interfaces : an exploration of multiclass motor imagery-based control for Emotiv EPOC X
Enhancing the command capacity of motor imagery (MI)-based brain-computer interfaces (BCIs) remains a significant challenge in neuroinformatics, especially for real-world assistive applications. This study explores a multiclass BCI system designed to classify multiple MI tasks using a low-cost EEG device. A BCI system was developed to classify six mental states: resting state, left and right hand movement imagery, tongue movement, and left and right lateral bending, using EEG data collected with the Emotiv EPOC X headset. Seven participants underwent a body awareness training protocol integrating mindfulness and physical exercises to improve MI performance. Machine learning techniques were applied to extract discriminative features from the EEG signals. Post-training assessments indicated modest improvements in participants' MI proficiency. However, classification performance was limited due to inter- and intra-subject signal variability and the technical constraints of the consumer-grade EEG hardware. These findings highlight the value of combining user training with MI-based BCIs and the need to optimize signal quality for reliable performance. The results support the feasibility of scalable, multiclass MI paradigms in low-cost, user-centered neurotechnology applications, while pointing to critical areas for future system enhancement
Midday measurements of leaf water potential and stomatal conductance are highly correlated with daily water use of Thompson Seedless grapevines
A study was conducted to determine the relationship between midday measurements of vine water status and daily water use of grapevines measured with a weighing lysimeter. Water applications to the vines were terminated on August 24th for 9 days and again on September 14th for 22 days. Daily water use of the vines in the lysimeter (ETLYS) was approximately 40 L vine−1 (5.3 mm) prior to turning the pump off, and it decreased to 22.3 L vine−1 by September 2nd. Pre-dawn leaf water potential (ΨPD) and midday Ψl on August 24th were −0.075 and −0.76 MPa, respectively, with midday Ψl decreasing to −1.28 MPa on September 2nd. Leaf g s decreased from ~500 to ~200 mmol m−2 s−1 during the two dry-down periods. Midday measurements of g s and Ψl were significantly correlated with one another (r = 0.96) and both with ETLYS/ETo (r = ~0.9). The decreases in Ψl, g s, and ETLYS/ETo in this study were also a linear function of the decrease in volumetric soil water content. The results indicate that even modest water stress can greatly reduce grapevine water use and that short-term measures of vine water status taken at midday are a reflection of daily grapevine water us
Transcription profiling reveals potential mechanisms of dysbiosis in the oral microbiome of rhesus macaques with chronic untreated SIV infection.
A majority of individuals infected with human immunodeficiency virus (HIV) have inadequate access to antiretroviral therapy and ultimately develop debilitating oral infections that often correlate with disease progression. Due to the impracticalities of conducting host-microbe systems-based studies in HIV infected patients, we have evaluated the potential of simian immunodeficiency virus (SIV) infected rhesus macaques to serve as a non-human primate model for oral manifestations of HIV disease. We present the first description of the rhesus macaque oral microbiota and show that a mixture of human commensal bacteria and "macaque versions" of human commensals colonize the tongue dorsum and dental plaque. Our findings indicate that SIV infection results in chronic activation of antiviral and inflammatory responses in the tongue mucosa that may collectively lead to repression of epithelial development and impact the microbiome. In addition, we show that dysbiosis of the lingual microbiome in SIV infection is characterized by outgrowth of Gemella morbillorum that may result from impaired macrophage function. Finally, we provide evidence that the increased capacity of opportunistic pathogens (e.g. E. coli) to colonize the microbiome is associated with reduced production of antimicrobial peptides
A method of forming the students’ creative technical potential and assessing the level of its formation in the process of implementing the content of technological education in gymnasium
В статті обґрунтовано особливості методики формування в учнів творчого технічного потенціалу у процесі реалізації змісту технологічної освіти в гімназії. За результатами аналізу літературних джерел визначено сутність і структуру творчого потенціалу особистості як сукупності творчих здібностей, що сприяють створенню нею суспільно значущих оригінальних продуктів. Вперше введено поняття «творчий технічний потенціал учнів гімназії», що визначено, відповідно, як сформовану в учнів гімназії сукупність творчих технічних здібностей. За результатами тривалого експерименту, методичної роботи з вчителями і т. ін. визначено найбільш важливі творчі технічні здібності учнів, які забезпечують їм ефективну творчу діяльність в галузі техніки і технологій: технічне мислення, технічна творча уява, асоціативне мислення (різного типу асоціації, асоціативні зв’язки) тощо. Доведено, що визначені творчі технічні здібності можна з успіхом розвивати в учнів у процесі проєктування й конструювання технічних об’єктів (виробів), а отже і формувати їхній творчий технічний потенціал. Вперше розроблено методику формування в учнів творчого технічного потенціалу й оцінювання рівня його сформованості у процесі реалізації змісту технологічної освіти в гімназії (дві взаємопов’язані методики). При цьому, сутність процесу формування полягає у розвитку в учнів творчих технічних здібностей, які відповідають складовим структури творчого потенціалу особистості. Для розроблення методики оцінювання створено відповідну наукову основу. Визначено навчальний теоретичний матеріал, необхідний для успішного формування в учнів творчого технічного потенціалу. Вперше обґрунтовано важливість оволодіння вчителями технологій знаннями з основ психології творчості і використання в навчальному процесі з технологій інтегративного підходу.Тhe article substantiates the importance of forming the students’ creative technical potential in the process of implementing the content of technological education in the gymnasium. According to the results of the analysis of literary sources, the essence and structure of the creative potential of an individual have been determined as a set of creative abilities contributing to the creation of socially significant original products. For the first time, the concept of “creative technical potential of gymnasium students” was introduced, which is defined, accordingly, as a set of creative technical abilities formed in gymnasium students. According to the results of a long experiment, methodical work with teachers, etc. the most important creative technical abilities of students have been determined that provide them with effective creative activity in the field of engineering and technology: technical thinking, technical creative imagination, associative thinking (different types of associations, associative connections), etc. It has been proven that certain creative technical abilities can be successfully developed in students in the process of designing and constructing technical objects (products), and thus form their creative technical potential. For the first time, a method of forming the students’ creative technical potential and assessing the level of its formation has been developed in the process of implementing the content of technological education in the gymnasium (two interrelated methods). At the same time, the essence of the formation process is the development of the students’ creative technical abilities, which correspond to the components of the structure of the individual’s creative potential. The educational theoretical material necessary for the successful formation of the students’ creative technical potential has been determined. For the first time, the importance of mastering technology teachers with knowledge of the basics of the psychology of creativity has been substantiated and the use of an integrative approach in the educational process of technology
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