595 research outputs found
Governing Asylum without ''Being There": Ghost Bureaucracy, Outsourcing, and the Unreachability of the State
When, where, and how do asylum seekers encounter the state? Anyone seeking asylum in the Global North might meet state authorities of the country where they want to apply for international protection long before arriving at its borders. However, if the state often becomes “very present” by transcending its geopolitical margins in border control, once asylum seekers have managed to cross into national territory, the state frequently vanishes. Insufficient information, opaque proceedings, and difficulties in reaching state agencies, which dramatically increased with the COVID pandemic, often translate into a denial of asylum seekers’ rights and their exclusion from welfare programs. Moreover, following a widespread tendency to outsource public services, access to asylum and related welfare programmes are being increasingly mediated by a range of nonstate actors (such as NGOs, activist groups, companies, and individuals) acting as state agents. Drawing on the analysis of ethnographic results from Spain and Italy, this article proposes the concept of “ghost bureaucracy” to theorise the street-level bureaucrats from their absence and explore asylum seekers’ encounters with a seemingly powerful and omnipresent but unreachable state through closed offices, digital bureaucracy and third-party actors
What do School Children know about Eye Injuries and their Prevention?
Ocular trauma is one of the most common causes of acquired blindness among children. The present study was conducted to assess the level of awareness among school children about eye injuries and their prevention to increase their knowledge and awareness about the same as there are no published studies on this important aspect of childhood eye injuries. 477 school children between VIIth and XIth of four schools under RHTC Mandur field practice area were administered questionnaires to assess their knowledge about eye injuries.Results: 92% of the students could correctly identify the sense organs in the human body.Most of the school children could identify at least three functions of the eye. 71.90% identified three parts of the eye correctly. 90% knew about the anatomical location of the eye. 93 % of the students were aware about the common places of eye injury as opposed to 33 (7%) who were unaware.45%) could correctly identify the various causes of eye injury and more than half, i.e 267 (56%) could describe the various mechanisms of eye injury.Most of the school children i.e. 439 (92%) knew about the importance of promptly consulting a doctor in case of an eye injury
Vibrations of Short Span Railway Bridges for High Speed Lines
The physical model based on moving constant loads is widely used for the analysis of railway bridges. Nevertheless, this model is not well-suited for the study of short span bridges (L<=15-20 m), and the results it produces (displacements and accelerations) are much greater than those obtained experimentally. In this paper two factors are analysed which are believed to have an influence in the dynamic behaviour of short bridges. These two factors are not accounted for by the moving loads model and are the following: the distribution of the loads due to the presence of the sleepers and ballast layer, and the train-bridge interaction. Several numerical simulations have been performed in order to decide on their influence, and the results are presented and discussed herein
El papel de la velocidad oceánica en la variabilidad de la clorofila. Un estudio de modelado en el mar de Alborán
In this work we focus on the Alboran Sea (western Mediterranean) to relate wind field and ocean velocity variability with chlorophyll a (Chl a) behaviour, using a 2-km resolution, coupled 3D ocean circulation-NPZD model (ROMS). The analysis is done in three steps. First, we split the seasonal and residual contribution for the fields under study. Second, we calculate the corresponding empirical orthogonal functions (EOFs) for the seasonal and residual parts. Finally, we relate each pair of variables for both seasonal and residual contribution EOFs. The results reported here allow the links between wind and Chl a to be quantified. We explain these links in terms of the ocean velocity field acting as a driver of Chl a variability. The results show that, although the seasonal part of the Chl a field is modulated by the vertical velocity, the residual component is modulated by the horizontal velocity components. Vertical velocities are responsible, through coastal upwelling, for Chl a bloom enhancement, while horizontal velocities spread coastal Chl a surface blooms off-shore.En este trabajo nos centramos en el mar de Alborán (Mediterráneo Occidental) para relacionar los campos de velocidad del viento y del océano con la variabilidad de la clorofila a (Chl a), utilizando un modelo de circulación 3D-NPZD (ROMS-Fennel) con una resolución de 2 km. El análisis se realiza en tres pasos. En primer lugar, separamos la contribución estacional y el residuo para todos los campos de estudio. En segundo lugar, calculamos las correspondientes funciones ortogonales empíricas (EOFs) para las components estacionales y residuales. Por último, relacionamos cada par de variables para ambos, EOFs estacionales y residuales. Los resultados permiten la cuantificación de las relaciones entre el viento y la clorofila. Explicamos estas relaciones en términos del campo de velocidades del océano que actúa como motor de la variabilidad de la Chl a. Los resultados muestran que, aunque la parte estacional de campo Chl a es modulada por la velocidad vertical, la componente residual es modulada por las componentes de la velocidad horizontal. Las velocidades verticales son responsables, a través de la surgencia costera, de incrementar el valor de la proliferación de Chl a, mientras que las velocidades horizontales extienden estas proliferaciones costeras superficiales a mar abierto
Food waste handling in Malaysia and comparison with other Asian countries
The increasing amount of food waste in Malaysia in recent years has brought many environmental issues in the country where it affects the nation’s solid waste management framework. At the moment, the government is limited to other alternatives of food waste disposal besides the conventional landfill and incineration methods. This paper provides information on the current status of food waste handling, management, regulations, and policies in Malaysia. It helps to draw the problem and challenge to a clearer view in efforts of achieving sustainable and integrative food waste handling in the country
Structural basis for the function and regulation of the receptor protein tyrosine phosphatase CD45
CD45 is the prototypic member of transmembrane receptor-like protein tyrosine phosphatases (RPTPs) and has essential roles in immune functions. The cytoplasmic region of CD45, like many other RPTPs, contains two homologous protein tyrosine phosphatase domains, active domain 1 (D1) and catalytically impaired domain 2 (D2). Here, we report crystal structure of the cytoplasmic D1D2 segment of human CD45 in native and phosphotyrosyl peptide-bound forms. The tertiary structures of D1 and D2 are very similar, but doubly phosphorylated CD3ζ immunoreceptor tyrosine-based activation motif peptide binds only the D1 active site. The D2 “active site” deviates from the other active sites significantly to the extent that excludes any possibility of catalytic activity. The relative orientation of D1 and D2 is very similar to that observed in leukocyte common antigen–related protein with both active sites in an open conformation and is restrained through an extensive network of hydrophobic interactions, hydrogen bonds, and salt bridges. This crystal structure is incompatible with the wedge model previously suggested for CD45 regulation
Facing challenges in differential classical conditioning research: benefits of a hybrid design for simultaneous electrodermal and electroencephalographic recording
Several challenges make it difficult to simultaneously investigate central and autonomous nervous system correlates of conditioned stimulus (CS) processing in classical conditioning paradigms. Such challenges include, for example, the discrepant requirements of electroencephalography (EEG) and electrodermal activity (EDA) recordings with regard to multiple repetitions of conditions and sufficient trial duration. Here, we propose a MultiCS conditioning set-up, in which we increased the number of CSs, decreased the number of learning trials, and used trials of short and long durations for meeting requirements of simultaneous EEG–EDA recording in a differential aversive conditioning task. Forty-eight participants underwent MultiCS conditioning, in which four neutral faces (CS+) were paired four times each with aversive electric stimulation (unconditioned stimulus) during acquisition, while four different neutral faces (CS−) remained unpaired. When comparing after relative to before learning measurements, EEG revealed an enhanced centro-posterior positivity to CS+ vs. CS− during 368–600 ms, and subjective ratings indicated CS+ to be less pleasant and more arousing than CS−. Furthermore, changes in CS valence and arousal were strong enough to bias subjective ratings when faces of CS+/CS− identity were displayed with different emotional expression (happy, angry) in a post-experimental behavioral task. In contrast to a persistent neural and evaluative CS+/CS− differentiation that sustained multiple unreinforced CS presentations, electrodermal differentiation was rapidly extinguished. Current results suggest that MultiCS conditioning provides a promising paradigm for investigating pre–post-learning changes under minimal influences of extinction and overlearning of simple stimulus features. Our data also revealed methodological pitfalls, such as the possibility of occurring artifacts when combining different acquisition systems for central and peripheral psychophysiological measures
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