Angular distributions in tt¯H(H→bb¯) reconstructed events at the LHC

The associated production of a Higgs boson and a top-quark pair, tt¯H, in proton-proton collisions is addressed in this paper for a center of mass energy of 13TeV at the LHC. Dileptonic final states of tt¯H events with two oppositely charged leptons and four jets from the decays t→bW+→bℓ+νℓ, t¯→b¯W−→b¯ℓ−ν¯ℓ and h→bb¯, are used. Signal events, generated with MadGraph5_aMC@NLO, are fully reconstructed by applying a kinematic fit. New angular distributions of the decay products as well as angular asymmetries are explored in order to improve discrimination of tt¯H signal events over the dominant irreducible background contribution, tt¯bb¯. Even after the full kinematic fit reconstruction of the events, the proposed angular distributions and asymmetries are still quite different in the tt¯H signal and the dominant background (tt¯bb¯).

Dynamic modelling and analysis of hydraulic forces in radial blood pumps

Dissertação de mestrado integrado em Biomedical Engineering Biomaterials, Biomechanics and Rehabilitation

Angular velocity and acceleration

In this chapter, a complete characterization of the angular velocity and angular acceleration for rigid bodies in spatial multibody systems are presented. For both cases, local and global formulations are described taking into account the advantages of using Euler parameters. In this process, the transformation between global and local components of the angular velocity and time derivative of the Euler parameters are analyzed and discussed in this chapter.

Force elements and reaction forces

"Series title: Springerbriefs in applied sciences and technology, ISSN 2191-530X"

Després del Big Bang: les forces de canvi i la formació electrònica

Pete Johnston fa un repàs del què poden representar els desenvolupaments recents en el camp de la formació electrònica per als professionals que es fan càrrec dels recursos d'informació requerits com a suport a l'ensenyament i l'aprenentatge.

Disseny i implementació d'una etapa d'acondicionament per a mesures de conductivitat realitzades amb un microscopi de forces atòmiques

En aquest treball, s’ha dissenyat un mòdul d’acondicionament a fi de millorar les mesures de conductivitat realitzades amb un AFM (Microscopi de Forces Atòmiques). L’equip actual disposa d’un preamplificador de baix soroll amb un guany de 10 10V/A. Donat que els corrents que es pretenen mesurar són extremadament petits (~pA), s’ha dissenyat un filtre per eliminar diferents fonts de soroll, com ara el soroll que introdueix la xarxa elèctrica a 50Hz. Es pretén reduir aquesta component freqüencial un factor mínim de 10 (20dB). També s’ha afegit un filtre passa baixos per eliminar els soroll que es troba fora de l’amplada de banda del preamplificador. S’ha introduït una etapa d’amplificació de guany variable: 1, 10 i 100 per augmentar la flexibilitat de l’equip i finalment també s’ha dissenyat una etapa per eliminar la tensió d’offset d’aquest amplificador. L’abast del treball anirà des del disseny fins la implementació final sobre una placa PCB.

Delivering Healthcare to the Armed Forces (PDF 88 KB)

A Protocol for Ensuring Equitable Access to Health and Social Care Services

Forces de Casimir i les seves aplicacions

Report for the scientific sojourn carried out at the Darmouth College, from august 2007 until february 2008. It has been very successful, from different viewpoints: scientific, philosophical, human. We have definitely advanced, during the past six months, towards the comprehension of the behaviour of the fluctuations of the quantum vacuum in the presence of boundaries, moving and non-moving, and also in situations where the topology of space-time changes: the dynamical Casimir effect, regularization problems, particle creation statistics, according to different BC, etc. We have solved some longstanding problems and got in this subject quite remarkable results (as we will explain in more detail below). We also pursued a general approach towards a viable modified f(R) gravity in both the Jordan and the Einstein frames (which are known to be mathematically equivalent, but physically not so). A class of exponential, realistic modified gravities has been introduced by us and investigated with care. Special focus was made on step-class models, most promising from the phenomenological viewpoint and which provide a natural way to classify all viable modified gravities. One- and two-steps models were considered, but the analysis is extensible to N-step models. Both inflation in the early universe and the onset of recent accelerated expansion arise in these models in a natural, unified way, what makes them very promising. Moreover, it is monstrated in our work that models in this category easily pass all local tests, including stability of spherical body solution, non-violation of Newton's law, and generation of a very heavy positive mass for the additional scalar degree of freedom.

Local and regional drugs task forces: handbook.

This handbook has been developed within the context of the institutional structures recommended under the National Drugs Strategy 2009-2016 and within the overall framework of the National Social Inclusion Plan 2007-2016. It sets out the role of the Drugs Task Forces within the national and local framework required to address the existing and emerging problems associated with drug use for individuals, families and communities in the context of the long term development of the work of the Drugs Task Forces.This resource was contributed by The National Documentation Centre on Drug Use.

A survey on the enlistment of pharmacists in a hospital battalion of the Swiss Armed Forces

Background: Pharmacists, mainly militiamen, are incorporated in the Swiss Armed Forces, for instance in hospital battalions to supply drugs and medical devices, as well as to coordinate hygiene service. Presently, their duties are only very globally defined. Aims: The objective of this survey was to investigate the tasks that were actually assumed by the military pharmacy of the 2nd Hospital Battalion. Methods: Two types of commitments, offering military and civilian interest's convergence, were considered between 2005 and 2011: (1) army camps for the disabled and (2) operations and supports provided to two nursing homes. While relieving the civil caregiver usually involved with disabled or elderly people, such missions offer indeed the possibility to the army medical service to train its care and logistical processes with real patients, even in the absence of any sanitary crisis or war in the country. Results: Two basis activities have been assumed: (1) centralized supply of drugs and medical devices and (2) coordination of hygiene monitoring and disinfection operations. New tasks were also performed: (3) support to the management of ward-based pharmacies, (4) pillboxes preparation, (5) medication review and (6) selective participation in clinical rounds. The last two were integrated in an interdisciplinary education process. Conclusions: Results shows that, apart from traditional duties, new clinical-oriented activities have been evenly developed and assumed by militia pharmacists. They call thus for a possible renewed definition of the tasks of military hospital pharmacists and of their related military education. A wider study in all hospital battalions is yet mandatory.

Simulated joint and muscle forces in reversed and anatomic shoulder prostheses.

Reversed shoulder prostheses are increasingly being used for the treatment of glenohumeral arthropathy associated with a deficient rotator cuff. These non-anatomical implants attempt to balance the joint forces by means of a semi-constrained articular surface and a medialised centre of rotation. A finite element model was used to compare a reversed prosthesis with an anatomical implant. Active abduction was simulated from 0 degrees to 150 degrees of elevation. With the anatomical prosthesis, the joint force almost reached the equivalence of body weight. The joint force was half this for the reversed prosthesis. The direction of force was much more vertically aligned for the reverse prosthesis, in the first 90 degrees of abduction. With the reversed prosthesis, abduction was possible without rotator cuff muscles and required 20% less deltoid force to achieve it. This force analysis confirms the potential mechanical advantage of reversed prostheses when rotator cuff muscles are deficient.

Posicionament angular de dispositius en 3 plans ortogonals mitjançant processat de senyals de velocitat angular

El projecte el podem dividir en dos fragments: captura de les senyals de velocitat angular i temperatura de cada pla, i la implementació de l'algorisme que, a partir d'aquestes dades, permet calcular el moviment angular de cada eix. Per tal de desenvolupar aquest sistema emprem un microcontrolador de 32 bits: MCF5213 de Freescale. Per programar-lo, utilitzem l'entorn que ofereix el fabricant code warrior.