Вклад молекулярно-генетического метода в выявление туберкулеза

Department of Pneumophtysiology, Nicolae Testemiţanu State University of Medicine and Pharmacy, Department of Family Medicine, Nicolae Testemitanu SUMPh, Medical Territorial Association Botanica, Chisinau, Medical Territorial Association Buiucani, ChisinauTuberculosis detection represents the major challenge in actual health care system of the Republic of Moldova. The aim of the study was the assessment of the features and risk factors of 101 patients with pulmonary tuberculosis detected in the frame of the primary health care of Chisinau city and diagnosis confirmed by molecular genetic method GeneXpert MTB/Rif. The research results established that more frequently were detected patients with lack of health insurance and poor social economical state. The risk factors such as chronic alcoholism, drug consumption, and history of detention, migration and comorbid state were identified in a low proportion. Despite the fact that high risk groups such as persons with tuberculosis contact and HIV infected individuals must be detected by active screening, they were detected predominantly by passive way. Despite the fact, that severe and extensive clinical radiologic forms predominated in patients detected by addressing, the treatment success rate was without differences compared with patients detected by active screening. .Depistarea tuberculozei reprezintă o provocare majoră pentru sistemul actual de sănătate al Republici Moldova. Scopul cercetării a fost evaluarea particularităţilor şi a factorilor de risc a 101 pacienţi cu tuberculoză pulmonară, depistaţi în cadrul asistenţei medicale primare din municipiul Chişinău şi cu diagnostic confirmat prin metoda molecular-genetică GeneXpert MTB/RIF. Rezultatele studiului au confirmat că mai des au fost depistaţi pacienţi neasiguraţi, cu o stare socioeconomică precară. Factorii de risc precum alcoolismul cronic, consumul de droguri, istoricul de detenţie, migraţia şi comorbidităţile au fost identificaţi într-un număr redus. În pofida faptului că grupele cu risc înalt, precum persoanele cu contact tuberculos şi cele infectate HIV, trebuie să fie depistate prin screening activ, acestea au fost depistate mai frecvent pasiv. Deşi formele clinico-radiologice severe şi extinse au predominat la pacienţii depistaţi prin adresare, rata succesului terapeutic nu s-a diferenţiat de cea a pacienţilor depistaţi prin screening activ.Выявление туберкулеза является серьезной проблемой для нынешней системы здравоохранения Республики Молдова. Целью исследования было определить особенности и факторы риска 101 пациентов с туберкулезом легких, выявленных в рамках первичной медико-санитарной помощи города Кишинэу и с подтвержденным диагнозом молекулярнo-генетическим методом GeneXpert MTB/Rif. Было установлено, что чаще всего были выявлены пациенты без медицинской страховки и со сниженным социально-экономическим статусом. Факторы риска, такие как хронический алкоголизм, употребление наркотиков, тюремное заключение, миграция, сопутствующие заболевания, были установлены у несколько случаев. Вопреки рекомендации активного выявления групп повышенного риска, включавшие людей с туберкулезным контактом и ВИЧ-инфицированные лица, они были обнаружены преимущественно пассивным путем. Несмотря на то, что тяжелые и обширные клинико-рентгенологические формы преобладали у пациентов, выявленных при обращении, доля успешно вылеченных было одинаково по сравнению с долей пациентов, выявленных активным путе

Transverse-momentum-dependent Multiplicities of Charged Hadrons in Muon-Deuteron Deep Inelastic Scattering

A semi-inclusive measurement of charged hadron multiplicities in deep inelastic muon scattering off an isoscalar target was performed using data collected by the COMPASS Collaboration at CERN. The following kinematic domain is covered by the data: photon virtuality $Q^{2}>1$ (GeV/$c$)$^2$, invariant mass of the hadronic system $W > 5$ GeV/$c^2$, Bjorken scaling variable in the range $0.003 < x < 0.4$, fraction of the virtual photon energy carried by the hadron in the range $0.2 < z < 0.8$, square of the hadron transverse momentum with respect to the virtual photon direction in the range 0.02 (GeV/$c)^2 < P_{\rm{hT}}^{2} < 3$ (GeV/$c$)$^2$. The multiplicities are presented as a function of $P_{\rm{hT}}^{2}$ in three-dimensional bins of $x$, $Q^2$, $z$ and compared to previous semi-inclusive measurements. We explore the small-$P_{\rm{hT}}^{2}$ region, i.e. $P_{\rm{hT}}^{2} < 1$ (GeV/$c$)$^2$, where hadron transverse momenta are expected to arise from non-perturbative effects, and also the domain of larger $P_{\rm{hT}}^{2}$, where contributions from higher-order perturbative QCD are expected to dominate. The multiplicities are fitted using a single-exponential function at small $P_{\rm{hT}}^{2}$ to study the dependence of the average transverse momentum $\langle P_{\rm{hT}}^{2}\rangle$ on $x$, $Q^2$ and $z$. The power-law behaviour of the multiplicities at large $P_{\rm{hT}}^{2}$ is investigated using various functional forms. The fits describe the data reasonably well over the full measured range.Comment: 28 pages, 20 figure

The effect of proprioceptive knee bracing on knee stability during three different sport related movement tasks in healthy subjects and the implications to the management of Anterior Cruciate Ligament (ACL) injuries

Abstract Introduction: Proprioceptive knee braces have been shown to improve knee mechanics, however much of the work to date has focused on tasks such as slow step down tasks rather than more dynamic sporting tasks. Objective: This study aimed to explore if such improvements in stability may be seen during faster sports specific tasks as well as slower tasks. Method: Twelve subjects performed a slow step down, single leg drop jump and pivot turn jump with and without a silicone web brace. 3D kinematics of the knee were collected using a ten camera Qualisys motion analysis system. Reflective markers were placed on the foot, shank, thigh and pelvis using the Calibrated Anatomical Systems Technique. A two way ANOVA with repeated measures was performed with post-hoc pairwise comparison to explore the differences between the two conditions and three tasks. Results: Significant differences were seen in the knee joint angles and angular velocities in the sagittal, coronal and transverse planes between the tasks. The brace showed a reduction in knee valgum and internal rotation across all tasks, with the most notable effect during the single leg drop jump and pivot turn jump. The transverse plane also showed a significant reduction in the external rotation knee angular velocity when wearing the brace. Discussion: The brace influenced the knee joint kinematics in coronal and transverse planes which confirms that such braces can have a significant effect on knee control during dynamic tasks. Further studies are required exploring the efficacy of proprioceptive braces in athletic patient cohort. Acknowledgements This study is partly founded by Erasmus+ program who have sponsored two masters students. The braces were supplied by DJO Global, Inc. The suppliers played no role in the design, execution, analysis and interpretation of the data or writing of this study

Constraints on the χ_(c1) versus χ_(c2) polarizations in proton-proton collisions at √s = 8 TeV

The polarizations of promptly produced χ_(c1) and χ_(c2) mesons are studied using data collected by the CMS experiment at the LHC, in proton-proton collisions at √s=8  TeV. The χ_c states are reconstructed via their radiative decays χ_c → J/ψγ, with the photons being measured through conversions to e⁺e⁻, which allows the two states to be well resolved. The polarizations are measured in the helicity frame, through the analysis of the χ_(c2) to χ_(c1) yield ratio as a function of the polar or azimuthal angle of the positive muon emitted in the J/ψ → μ⁺μ⁻ decay, in three bins of J/ψ transverse momentum. While no differences are seen between the two states in terms of azimuthal decay angle distributions, they are observed to have significantly different polar anisotropies. The measurement favors a scenario where at least one of the two states is strongly polarized along the helicity quantization axis, in agreement with nonrelativistic quantum chromodynamics predictions. This is the first measurement of significantly polarized quarkonia produced at high transverse momentum