988 research outputs found
Defending against Extermination: A Comparative Approach to Self-Defense in the Case of Mass Atrocity
This paper is a comparative study of three contemporary cases of self-defense in the context of mass atrocity. I define self-defense as violence deployed by armed groups as non-state or quasi-state actors to preserve life and social group integrity. This definition acknowledges power relations as complex and violence as multidirectional. Actors include informal defenders, civilians, military actors each overlapping with varying interests. I pose the research question: what is legitimate self-defense in the context of mass atrocity, and how is it presented in the public sphere, regionally and internationally for the purpose of political support or sympathy? In doing so I address the claims of mass atrocity, and the methods of violence used and the targets of this violence used in to self-defense. Answering these questions in this explorative paper are data from three comparative cases focused on a specific year of self-defense actions in each: Hamas in Gaza during 2023; Artsakh Defense Forces (ADF) in Artsakh or Nagorno-Karabakh in 2020; and, Twirwaneho in Congo in 2021
Hybrid and mixed matrix membranes for separations from fermentations
Fermentations provide an alternative to fossil fuels for accessing a number of biofuel and chemical products from a variety of renewable and waste substrates. The recovery of these dilute fermentation products from the broth, however, can be incredibly energy intensive as a distillation process is generally involved and creates a barrier to commercialization. Membrane processes can provide a low energy aid / alternative for recovering these dilute fermentation products and reduce production costs. For these types of separations many current polymeric and inorganic membranes suffer from poor selectivity and high cost respectively. This paper reviews work in the production of novel mixed matrix membranes (MMMs) for fermentative separations and those applicable to these separations. These membranes combine a trade-off of low-cost and processability of polymer membranes with the high selectivity of inorganic membranes. Work within the fields of nanofiltration, reverse osmosis and pervaporation has been discussed. The review shows that MMMs are currently providing some of the most high-performing membranes for these separations, with three areas for improvement identified:1. Further characterization and optimization of inorganic phase(s). 2. Greater understanding of the compatibility between the polymer and inorganic phase(s).3. Improved methods for homogeneously dispersing the inorganic phase<br/
Task-Related Deactivation and Functional Connectivity of the Subgenual Cingulate Cortex in Major Depressive Disorder
Background: Major depressive disorder is associated with functional alterations in activity and resting-state connectivity of the extended medial frontal network. In this study we aimed to examine how task-related medial network activity and connectivity were affected in depression. Methods: 18 patients with major depressive disorder, aged 15- to 24-years-old, were matched with 19 healthy control participants. We characterized task-related activations and deactivations while participants engaged with an executive-control task (the multi-source interference task, MSIT). We used a psycho-physiological interactions approach to examine functional connectivity changes with subgenual anterior cingulate cortex. Voxel-wise statistical maps for each analysis were compared between the patient and control groups. Results: There were no differences between groups in their behavioral performances on the MSIT task, and nor in patterns of activation and deactivation. Assessment of functional connectivity with the subgenual cingulate showed that depressed patients did not demonstrate the same reduction in functional connectivity with the ventral striatum during task performance, but that they showed greater reduction in functional connectivity with adjacent ventromedial frontal cortex. The magnitude of this latter connectivity change predicted the relative activation of task-relevant executive-control regions in depressed patients. Conclusion: The study reinforces the importance of the subgenual cingulate cortex for depression, and demonstrates how dysfunctional connectivity with ventral brain regions might influence executive–attentional processes
Gatumba Massacre, Background Essay
On August 13th 2004, 166 people were killed and 106 were wounded at the UN’s Gatumba refugee camp in Burundi. Nearly all the victims were members of the Banyamulenge community, a Congolese Tutsi ethnic group who were deliberately targeted in the attack. The massacre was carried out by the Forces Nationales pour la Liberation (FNL), a Hutu supremacist rebel group fighting in Burundi’s civil war. Understanding the Gatumba Massacre requires understanding what forced those Banyamulenge refugees to flee their homes in the Democratic Republic of the Congo (DRC), and why the FNL targeted them. This background essay addresses the context historical and events that led to the Gatumba Massacre.
This essay is co-authored by Christopher P. Davey, Jean Paul Iranzi, Ezra Schrader, and Fidele Sebahizi.https://commons.clarku.edu/gatumba_background/1000/thumbnail.jp
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Referrals from Primary Eye Care: An Investigation into their quality, levels of false positives and psychological effect on patients.
Previous research into the accuracy of referrals for glaucoma has shown that a large number of referrals to the Hospital Eye Service are false positive. Research in areas of healthcare other than ophthalmology has shown that psychological distress can be caused by false positive referrals. The present study aimed to evaluate the quality of referrals to the HES for all ocular pathologies, and also to quantify the proportion of these referrals that were false positive. Any commonality between false positive referrals was investigated. The psychological effect of being referred to the HES was also evaluated using the Hospital Anxiety and Depression Scale (HADS) and State-Trait Anxiety Inventory (STAI). Both scales were validated in this population with Rasch analysis before use. A final aim was to develop an improvement to the present referral pathway in order to reduce numbers of false positive referrals.
The accuracy of referrals to the HES appears to improve as clinicians become more experienced, and greater numbers of false positive referrals are generated by female clinicians. Optometrists refer patients with a wide range of ocular diseases and in most cases include both fundus observations and visual acuity measurements in their referrals. GPs mainly refer patients with anterior segment disorders, particularly lid lesions, based on direct observation and symptoms. Illegibility and missing clinical information reduce the quality of many optometric referrals. Patients referred to the HES experience raised levels of anxiety as measured by the STAI and raised levels of depression as measured by the HADS-Depression subscale. As a method of assessing psychological distress, the questionnaires HADS-T (all items), STAI-S (State subscale) and STAI-T (Trait subscale) show good discrimination between patients when administered to a population of new ophthalmic outpatients, despite all having a floor effect. Subsequently a referral refinement service was developed which reduced numbers of unnecessary referrals and reduced costs for the NHS
Molecular weight cut-off determination of organic solvent nanofiltration membranes using poly(propylene glycol)
A new method for determining the molecular weight cut-off (MWCO) of an organic solvent nanofiltration (OSN) membrane has been developed utilising poly(propylene) glycol (PPG) oligomers. This new MWCO method overcomes the limitations of the currently popular methods: namely the high molecule cost in the popular polystyrene method, the Donnan Exclusion effects when using dye molecules and the solvent compatibility and HPLC separation resolution limitations of the lesser used poly(ethylene) glycol (PEG) method. A new reverse phase high-performance liquid chromatography separation with evaporative light scattering detection (ELSD) allows the concentration of each oligomer of PPG to be accurately determined and from this the MWCO curves are constructed. The method has a high resolution (size increment of 58 g mol-1 corresponding to the OCH(CH3)CH2 structural unit) and can be used in polar, polar aprotic, and non-polar solvents. The accuracy of the method has been demonstrated in three different solvents (methanol, acetone, and toluene) and 5 different OSN membranes (DuraMem® 150, 200, 500, PuraMem® 280 and StarMemTM 240). Other advantages include; oligomers of PPG are cheap and widely available, can probe a wide range of MWCO and provide high resolution MWCO curves. Consequently, it is proposed that that this method be adopted as a new standard MWCO test for OSN membranes
Satellite moisture profiling of eastern Pacific moisture plumes
Spring 2000.Includes bibliographical references.Sponsored by NASA NAG5-3449
The experience of young people receiving cognitive behavioural therapy for major depression : A qualitative study
Aim
Major depressive disorder (MDD) has far reaching impacts for young people, their families and society. Cognitive behavioural therapy (CBT) is one of the first-line treatments for young people experiencing MDD; however, there is limited research examining how young people with MDD experience CBT. The aim of this study was to explore their experience and their views of this intervention.
Methods
We employed a qualitative research design, with semi-structured interviews and thematic analysis. Eight participants aged between 17 and 24 years who received CBT for MDD in a randomized controlled trial were recruited.
Results
Five themes were identified: the importance of relationship with clinician; the range of useful components within CBT; the ability for CBT to accommodate different techniques and presenting issues; the importance of checking in with clients during the process of therapy; and the impacts of MDD on therapy.
Conclusions
The findings highlight the importance of clinicians having a youth friendly and collaborative approach that allows a modular delivery of a range of CBT techniques to suit the client's presenting issue and formulation. There is a need to continually check how young people are responding to interventions, and to be aware of potential cognitive deficits and adjust therapy accordingly. This is a small study that provides insight into how young people with MDD experience CBT and avenues to explore for tailoring provision of CBT to enhance the therapeutic experience for this population
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