Foreign Intervention and Warfare in Civil Wars: The effect of exogenous resources on the course and nature of the Angolan and Afghan conflicts

This dissertation asks how foreign assistance to one or both sides in a civil war affects the dynamics of the conflict. This overarching question is subsequently divided into two further questions: 1) how does foreign intervention affect the capabilities of the recipient, and 2) how does this affect the nature of the warfare. The puzzle for the first is that the impact of foreign intervention on combat effectiveness frequently varies significantly between recipients. This variation is explained by recipients’ different abilities to convert the inputs of foreign intervention into the outputs of fighting capability. The nature of the warfare in civil war will change in line with the balance of military capabilities between the belligerents. The balance of capabilities will be responsible for the form of warfare at a particular place and time whether it be conventional, irregular or guerrilla/counter-guerrilla. The argument is then illustrated with two extensive case studies, of civil wars in Angola and Afghanistan, where temporal and spatial variation in the type of warfare is shown to correlate with the type, degree, and direction of foreign intervention

Participation des médecins aux séances scientifiques planifiées

Background: Physician participation in regularly scheduled series (RSS), also known as grand rounds, was explored with a particular focus on physician perceptions about the elements that affected their engagement in RSS and the unanticipated benefits to RSS. Methods: A qualitative study using semi-structured interviews and thematic analysis examined physicians’ perception of their knowledge and educational needs and the factors that contributed to engagement in their local hospital RSS. Results: Physician engagement in RSS was affected by four major themes: Features that Affect the RSS’ Quality; Collegial Interactions; Perceived Outcomes of RSS; and Barriers to participation in RSS. Features that Affect RSS’ Quality were specific modifiable features that impacted the perceived quality of the RSS. Collegial Interactions were interactions that occurred between colleagues directly or indirectly as a result of attending RSS. Outcomes of RSS were specific outcome measures used in RSS sessions. Barriers were seen as reasons why physicians were unwilling or unable to participate in RSS. All of the elements identified within the four themes contributed to the development of physician engagement. Physicians also identified changes directly and indirectly due to RSS. Discussion: Specific features of RSS result in enhanced physician engagement. There are benefits that may not be accounted for in continuing medical education (CME) outcome study designsContexte : Nous examinons la participation des médecins aux séries de conférences planifiées (SCP) planifiées à l’avance, également connues sous le nom de séances scientifiques, plus particulièrement sous l’angle des perceptions des médecins quant aux éléments qui ont déterminé leur participation et quant aux avantages inattendus des SAR. Méthode : La perception qu'ont les médecins de leurs connaissances et de leurs besoins de formation, ainsi que des facteurs qui les ont poussés à participer aux SCP de leur hôpital sont examinés par le biais d’une étude qualitative comprenant des entretiens semi-dirigés et une analyse thématique. Résultats : Les facteurs qui déterminent la participation des médecins aux SCP se classent en quatre grands thèmes : les caractéristiques qui affectent la qualité des SCP, l’interaction entre collègues, les résultats perçus des SAR et les obstacles à leur participation aux SCP. Les premières sont des caractéristiques modifiables précises, qui influencent la qualité perçue des SCP. Les secondes sont les interactions entre collègues qui se produisent directement ou indirectement à la suite de la participation à une SCP. Les résultats des SCP sont des indicateurs de résultats précis utilisés dans les séances d’activités régulières. Sont considérés comme obstacles les raisons pour lesquelles les médecins ne voulaient pas ou ne pouvaient pas prendre part aux SCP. Tous les éléments décelés de chacun des quatre thèmes ont contribué à favoriser la participation des médecins. Les médecins ont également trouvé des changements qui sont directement ou indirectement liés aux SCP. Discussion : Certains traits spécifiques des SCP favorisent une participation accrue des médecins. Il est possible que les études de résultats du développement professionnel continu (DPC) ne tiennent pas compte de tous les avantages que les SCP procurent

Essex girls’ in the comedy club : stand-up, ridicule and ‘value struggles’

This article presents findings from a qualitative study carried out on how audiences of stand-up comedy are entangled in ‘value struggles’. It focuses on a group who through classed and gendered ridicule are often drawn as valueless – women from Essex or ‘Essex girls’. The article explores how a group of women from Essex negotiate their value in the face of Essex girl–based ridicule, experienced while part of a live comedy audience in a London comedy club. The analysis reveals an ambivalence in how the group utilise and view their ‘Essex girl’ status, which challenges the view that this is a valueless identification. They oscillate between the joy of revelling in the Essex girl role and disidentification from the shame of this disreputable status. It concludes by highlighting how ridicule does not necessarily perform a disciplinary function and considers if the joy of ‘being Essex’ has any hope of escaping into everyday life

Measurement of the Forward-Backward Asymmetry in the B -> K(*) mu+ mu- Decay and First Observation of the Bs -> phi mu+ mu- Decay

We reconstruct the rare decays $B^+ \to K^+\mu^+\mu^-$, $B^0 \to K^{*}(892)^0\mu^+\mu^-$, and $B^0_s \to \phi(1020)\mu^+\mu^-$ in a data sample corresponding to $4.4 {\rm fb^{-1}}$ collected in $p\bar{p}$ collisions at $\sqrt{s}=1.96 {\rm TeV}$ by the CDF II detector at the Fermilab Tevatron Collider. Using $121 \pm 16$ $B^+ \to K^+\mu^+\mu^-$ and $101 \pm 12$ $B^0 \to K^{*0}\mu^+\mu^-$ decays we report the branching ratios. In addition, we report the measurement of the differential branching ratio and the muon forward-backward asymmetry in the $B^+$ and $B^0$ decay modes, and the $K^{*0}$ longitudinal polarization in the $B^0$ decay mode with respect to the squared dimuon mass. These are consistent with the theoretical prediction from the standard model, and most recent determinations from other experiments and of comparable accuracy. We also report the first observation of the $B^0_s \to \phi\mu^+\mu^- decay and measure its branching ratio${\mathcal{B}}(B^0_s \to \phi\mu^+\mu^-) = [1.44 \pm 0.33 \pm 0.46] \times 10^{-6}$using$27 \pm 6$signal events. This is currently the most rare$B^0_s$ decay observed.Comment: 7 pages, 2 figures, 3 tables. Submitted to Phys. Rev. Let

Search for a New Heavy Gauge Boson Wprime with Electron + missing ET Event Signature in ppbar collisions at sqrt(s)=1.96 TeV

We present a search for a new heavy charged vector boson $W^\prime$ decaying to an electron-neutrino pair in $p\bar{p}$ collisions at a center-of-mass energy of 1.96\unit{TeV}. The data were collected with the CDF II detector and correspond to an integrated luminosity of 5.3\unit{fb}^{-1}. No significant excess above the standard model expectation is observed and we set upper limits on $\sigma\cdot{\cal B}(W^\prime\to e\nu)$. Assuming standard model couplings to fermions and the neutrino from the $W^\prime$ boson decay to be light, we exclude a $W^\prime$ boson with mass less than 1.12\unit{TeV/}c^2 at the 95\unit{%} confidence level.Comment: 7 pages, 2 figures Submitted to PR

Measurement of the Ratio of b Quark Production Cross Sections in Antiproton-Proton Collisions at 630 GeV and 1800 GeV

We report a measurement of the ratio of the bottom quark production cross section in antiproton-proton collisions at 630 GeV to 1800 GeV using bottom quarks with transverse momenta greater than 10.75 GeV identified through their semileptonic decays and long lifetimes. The measured ratio sigma(630)/sigma(1800) = 0.171 +/- .024 +/- .012 is in good agreement with next-to-leading order (NLO) quantum chromodynamics (QCD)

Search for heavy bottom-like quarks decaying to an electron or muon and jets in ppˉp\bar{p} collisions at s=1.96\sqrt{s}=1.96 TeV

We report the most sensitive direct search for pair production of fourth-generation bottom-like chiral quarks ($b'$) each decaying promptly to $tW$. We search for an excess of events with an electron or muon, at least five jets (one indentified as due to a $b$ or $c$ quark) and an imbalance of transverse momentum using data from $p\bar{p}$ collisions collected by the CDF II detector at Fermilab with an integrated luminosity of 4.8 fb$^{-1}$. We observe events consistent with background expectation and calculate upper limits on the $b'$ pair production cross section ($\sigma_{b\bar{b'}}\lesssim 30$ fb for $m_{b'}>$375 GeV/$c^2$) and exclude $m_{b'}<372$ \gevcc at 95% confidence level.Comment: For submission to PR

Habitat preferences by individual humpback whale mothers in the Hawaiian breeding grounds vary with the age and size of their calves

We investigated whether calf age and calf size influence habitat choice by humpback whale motherecalf pairs in their breeding grounds. During 1997e2008, we conducted focal follows of motherecalf pairs in Hawaiian waters. Tail-fluke identification photographs and calf lengths (measured through video-grammetry) were obtained. Water depth and sea-bed terrain type were derived from GPS data. Identification photographs were matched so that the habitat choices could be established within breeding seasons. Across 72 motherecalf pairs resighted over various intervals within a breeding season, magnitude of depth change between initial and final sightings increased significantly with resighting interval. There was a significant increase from initial depth to final depth for relatively long resighting intervals (27e51 days), but no significant difference for relatively short resighting intervals (2e26 days). Although there was no preference for sea-bed terrain type by motherecalf pairs at their initial sighting, there was a preference for rugged terrain at their final resighting. A resource selection model indicated that the relative probability of a location being used by a motherecalf pair increased (as a function of water depth and rugged sea-bed terrain type) from initial to final sighting; a finding supported by subsequent tests of habitat preference versus availability. For 96 measured calves, calf length and water depth were positively correlated, even when ordinal day of measurement was controlled for statistically; a finding confirmed by a general linear model that simultaneously investigated the relationship between water depth, sea-bed terrain type, number of escorts, ordinal day and calf size. Thus, both calf age and size influence habitat choice by motherecalf pairs in their breeding grounds. The movement of mothers and their maturing calves into deeper waters where they favour rugged sea-bed terrain appears to be part of a suite of behavioural changes during the pre-migratory phase of residency in the breeding grounds