679 research outputs found
Geographical Concentration of Rural Poverty in Bangladesh
This paper was presented at the dialogue on Mapping Poverty for Rural Bangladesh: Implications for Pro-poor Development. The dialogue was organised as part of CPD's ongoing agricultural policy research and advocacy activities with IRRI under the PETRRA project. The study reported geographical concentration of rural poverty in Bangladesh for 425 upazilas in 2000-01. The study measured and mapped incidence of poverty (using Headcount Index), intensity of poverty (using Poverty Gap Index) and severity of poverty (using Squared Poverty Gap Index). It has analyzed factors contributing to the spatial concentration of poverty. It is hoped that the findings of the study would be helpful in identifying target areas and priorities for agricultural R&D interventions and poverty reduction programmes.Poverty, Rural Poverty, Bangladesh
Individual differences in naturalistic learning link negative emotionality to the development of anxiety
Organisms learn from prediction errors (PEs) to predict the future. Laboratory studies using small financial outcomes find that humans use PEs to update expectations and link individual differences in PE-based learning to internalizing disorders. Because of the low-stakes outcomes in most tasks, it is unclear whether PE learning emerges in naturalistic, high-stakes contexts and whether individual differences in PE learning predict psychopathology risk. Using experience sampling to assess 625 college students\u27 expected exam grades, we found evidence of PE-based learning and a general tendency to discount negative PEs, an optimism bias. However, individuals with elevated negative emotionality, a personality trait linked to the development of anxiety disorders, displayed a global pessimism and learning differences that impeded accurate expectations and predicted future anxiety symptoms. A sensitivity to PEs combined with an aversion to negative PEs may result in a pessimistic and inaccurate model of the world, leading to anxiety
Coupled Biological and Thermochemical Process for Plastic Waste Conversion into Biopolymers
The aqueous phase produced from the hydrothermal liquefaction (HTL) of three matrices (Plasmix treated with
different operative conditions and polystyrene) was subjected to acidogenic fermentation (AF) batch tests to
obtain organic acids, which are the ideal substrates for biopolymers (e.g., polyhydroxyalkanoates, PHA)
production from mixed microbial cultures (MMC). Parallel tests in the presence of only HTL water fractions or
only glucose (an easily biodegradable compound), or in presence of both, were conducted and compared to
assess any possible recalcitrant or inhibitory effect of plastic waste from the HTL treatment during the AF
process. These tests resulted, within approximately 30 days of operation, in a conversion of 96 ± 21%
(COD/COD) of the Plasmix by-products after a 2h thermochemical treatment into organic acids, a 54 ± 7%
(COD/COD) of conversion for Plasmix by-products treated 4h, and 29 ± 1% (COD/COD) of conversion in the
presence of polystyrene residual water
Hypoxia up-regulates SERPINB3 through HIF-2\u3b1 in human liver cancer cells.
SERPINB3 is a cysteine-proteases inhibitor up-regulated in a significant number of cirrhotic patients carrying hepatocellular carcinoma (HCC) and recently proposed as a prognostic marker for HCC early recurrence. SERPINB3 has been reported to stimulate proliferation, inhibit apoptosis and, similar to what reported for hypoxia, to trigger epithelial-to-mesenchymal transition (EMT) and increased invasiveness in liver cancer cells. This study has investigated whether SERPINB3 expression is regulated by hypoxia-related mechanisms in liver cancer cells. Exposure of HepG2 and Huh7 cells to hypoxia up-regulated SERPINB3 transcription, protein synthesis and release in the extracellular medium. Hypoxia-dependent SERPINB3 up-regulation was selective (no change detected for SERPINB4) and operated through hypoxia inducible factor (HIF)-2\u3b1 (not HIF-1\u3b1) binding to SERPINB3 promoter, as confirmed by chromatin immuno-precipitation assay and silencing experiments employing specific siRNAs. HIF-2\u3b1-mediated SERPINB3 up-regulation under hypoxic conditions required intracellular generation of ROS. Immuno-histochemistry (IHC) and transcript analysis, performed in human HCC specimens, revealed co-localization of the two proteins in liver cancer cells and the existence of a positive correlation between HIF-2\u3b1 and SERPINB3 transcript levels, respectively. Hypoxia, through HIF-2\u3b1-dependent and redox-sensitive mechanisms, up-regulates the transcription, synthesis and release of SERPINB3, a molecule with a high oncogenic potential
Transcranial magnetic stimulation (TMS) application in sport medicine: A brief review
Since 1985, transcranial magnetic stimulation (TMS) has been used for non-invasive exploration of motor control in humans and for a wide range of applications in all ages of life. This brief review examined briefly the potential interest in sport medicine
Predictive and experimental study of intelligent nanoparticles for controlling cardiac ECM after myocardial infarction
A MINIREVIEW ABOUT SPORTING PRACTICE IN EPILEPTIC CHILDREN
Movement is important for neuropsycho-physical development, ensuring the correct growth and giving many benefits from
childhood to adulthood. Motor activity plays a pivotal role in psychological, educational and social terms: sport practice induces
harmonious physical development with common important benefits independently from sport type and each sport imposes rules
respect that children learns to know and respect step by step improving the social skills and cognitive abilities. Sport has a very
important role in the growth of children and adolescents. Sport and physical activity work as a moral laboratory to practice decisionmaking
and problem-solving skills, as well as teamwork and cooperation. In many pathological conditions, the sport practice is
strongly discouraged, as in epileptic patients for the negative consequences on their physical condition and psychic. In general, several
studies reported that physical activity has positive influence on seizure frequency and severity. As a result, attitudes regarding
sports and epilepsy have changed considerably in the last decades and presently, the risk of convulsive seizures during sports practice
is minimal in case of well-managed epilepsy. Evaluating the control of convulsive disease is therefore a key point to allow sports
in the children and adolescents
Negative Interpretation Bias Connects to Real-World Daily Affect: A Multistudy Approach
Negative interpretation bias, the tendency to appraise ambiguous stimuli as threatening, shapes our emotional lives. Various laboratory tasks, which differ in stimuli features and task procedures, can quantify negative interpretation bias. However, it is unknown whether these tasks globally predict individual differences in real-world negative (NA) and positive (PA) affect. Across two studies, we tested whether different lab-based negative interpretation bias tasks predict daily NA and PA, measured via mobile phone across months. To quantify negative interpretation bias, Study 1 (N = 69) used a verbal, self-referential task whereas Study 2 (N = 110) used a perceptual, emotional image task with faces and scenes. Across tasks, negative interpretation bias was linked to heightened daily NA. However, only negative interpretation bias in response to ambiguous faces was related to decreased daily PA. These results illustrate the ecological validity of negative interpretation bias tasks and highlight converging and unique relationships between distinct tasks and naturalistic emotion
Reactions of a Be-10 beam on proton and deuteron targets
The extraction of detailed nuclear structure information from transfer
reactions requires reliable, well-normalized data as well as optical potentials
and a theoretical framework demonstrated to work well in the relevant mass and
beam energy ranges. It is rare that the theoretical ingredients can be tested
well for exotic nuclei owing to the paucity of data. The halo nucleus Be-11 has
been examined through the 10Be(d,p) reaction in inverse kinematics at
equivalent deuteron energies of 12,15,18, and 21.4 MeV. Elastic scattering of
Be-10 on protons was used to select optical potentials for the analysis of the
transfer data. Additionally, data from the elastic and inelastic scattering of
Be-10 on deuterons was used to fit optical potentials at the four measured
energies. Transfers to the two bound states and the first resonance in Be-11
were analyzed using the Finite Range ADiabatic Wave Approximation (FR-ADWA).
Consistent values of the spectroscopic factor of both the ground and first
excited states were extracted from the four measurements, with average values
of 0.71(5) and 0.62(4) respectively. The calculations for transfer to the first
resonance were found to be sensitive to the size of the energy bin used and
therefore could not be used to extract a spectroscopic factor.Comment: 16 Pages, 10 figure
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