Angle grinders are powerful tools used for cutting, shaving and polishing metal, stone, concrete and many hard surfaces in the work and hobby context. The aim of this study was to evaluate the acute ...hand injuries caused by angle grinders and to identify risk factors. Out of 742 acute hand and forearm injuries presenting in our emergency department between March 2016 and March 2017, 82 cases of injury due to angle grinder were included in the study. The age, gender, occupation, experience and education level of the injured patients were recorded. In addition, the location, mechanism, time of day, cigarette or alcohol use and occupational cases were determined. The Modified Hand Injury Severity Score (MHISS) was used to determine the injury severity. The vast majority of injuries (except 8) were not occupational injuries. They often occurred when individuals were using this tool outside of a work context (home, etc.); 44% of the patients were retired. There were more injuries between the hours of 3 pm and 6 pm. The mean overall MHISS score of was 74 (2–330). These angle grinder injuries, many of which are severe, are difficult to treat and the resulting disability is high. Many factors, such as smoking, age and time of day contribute to these injuries. Precautions should be taken and safety training should be provided for this powerful tool which is widely used and easy to obtain.
Une disqueuse (meuleuse d’angle) est un outil puissant utilisé pour couper, raser et polir le métal, la pierre, les surfaces bétonnées et dures au travail ou dans les loisirs. Le but de cette étude était d’évaluer les lésions causées par cet outil, qui sont fréquemment rencontrées parmi les lésions graves à la main et d’identifier leurs facteurs de risques. Parmi les 742 lésions graves à la main et à l’avant-bras admises au département des urgences et de la traumatologie entre mars 2016 et mars 2017, 82 cas causées par une disqueuse furent incluses dans le cadre de cette étude. L’information démographique de ces cas incluant l’âge, le sexe, le métier, l’expérience et le niveau d’éducation fut enregistrée. En plus, la localisation, le mécanisme, le temps, la consommation de tabac et d’alcool et les cas professionnels furent consignés en relation avec la lésion. Le Modified Hand Injury Severity Score (MHISS) fut utilisé pour évaluer la gravité de la lésion. La vaste majorité des lésions (excepté 8) n’ont pas été causées dans le milieu professionnel et beaucoup furent produites quand les individus étaient à l’extérieur du secteur de travail (maison, etc.) et 44 % des personnes étaient à la retraite (36). Un accroissement temporel des taux de lésion a été observé entre 15h00 et 18h00. Le score moyen MHISS obtenu de 82 patients était de 74 (2–330). Les lésions causées par une disqueuse sont difficiles à traiter et entraînent une grande incapacité. Plusieurs facteurs comme le tabagisme, l’âge et les facteurs temporels affectent la blessure. Des mesures préventives devraient être prises et une formation en sécurité devrait être prévue pour l’utilisation de ces outils qui sont largement utilisés et faciles à obtenir.
Full text
Available for:
GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK, ZRSKP
We have measured the β -decay half-lives of 16 neutron-deficient nuclei with T z = - 1 / 2 and -1 , ranging from chromium to germanium. They were produced in an experiment carried out at GANIL and ...optimized for the production of 58Zn , for which in addition we present the decay scheme and absolute Fermi and Gamow-Teller transition strengths. Since all of these nuclei lie on the rp -process pathway, the T 1 / 2 values are important ingredients for the rp -process reaction flow calculations and for models of X-ray bursters.
Full text
Available for:
DOBA, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, IZUM, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, SIK, UILJ, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Remarkable results have been published recently on the β decay of 56Zn. In particular, the rare and exotic β-delayed γ-proton emission has been detected for the first time in the fp shell. Here we ...focus the discussion on this exotic decay mode and on the observed competition between β-delayed protons and β-delayed γ rays from the Isobaric Analogue State.
Full text
Available for:
IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
A new detection system for the measurement of beta-delayed neutron emission probabilities has been characterized using fission products with well known β-delayed neutron emission properties. The ...setup consists of BELEN-20, a 4π neutron counter with twenty 3He proportional tubes arranged inside a large polyethylene neutron moderator, a thin Si detector for β counting and a self-triggering digital data acquisition system. The use of delayed-neutron precursors with different neutron emission windows allowed the study of the effect of energy dependency on neutron, β and β–neutron rates. The observed effect is well reproduced by Monte Carlo simulations. The impact of this dependency on the accuracy of neutron emission probabilities is discussed. A new accurate value of the neutron emission probability for the important delayed-neutron precursor 137I was obtained, Pn=7.76(14)%.
Full text
Available for:
GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK, ZRSKP
The β decay properties of the Tz = -2, 56Zn isotope and other proton-rich nuclei in the fp-shell have been investigated in an experiment performed at GANIL. The ions were produced in fragmentation ...reactions and implanted in a double-sided silicon strip detector surrounded by Ge EXOGAM clovers. Preliminary results for 56Zn are presented .The 56Zn decay proceeds mainly by β delayed proton emission, but β delayed gamma rays were also detected. Moreover, the exotic β delayed gamma-proton decay was observed for the first time. The 56Zn half-life and the energy levels populated in the 56Cu daughter have been determined. Knowledge of the gamma de-excitation of the mirror states in 56Co and the comparison with the results of the mirror charge exchange process, the 56Fe(3He,t) reaction (where 56Fe has Tz = +2), were important in the interpretation of the 56Zn decay data. The absolute Fermi and Gamow-Teller strengths have been deduced.
Full text
Available for:
IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
We report the first observation of the 2$^+$ isomer in $^{52}$Co, produced in the $\beta$ decay of the 0$^+$, $^{52}$Ni ground state. We have observed three $\gamma$-rays at 849, 1910, and 5185 keV ...characterizing the de-excitation of the isomer. We have measured a half-life of 102(6) ms for the isomeric state. The Fermi and Gamow-Teller transition strengths for the $\beta$ decay of $^{52m}$Co to $^{52}$Fe have been determined. We also add new information on the $\beta$ decay of the 6$^+$, $^{52}$Co ground state, for which we have measured a half-life of 112(3) ms.
Full text
Available for:
CMK, CTK, FMFMET, IJS, NUK, PNG, UM
The results of a study of the beta decays of three proton-rich nuclei having $T_z$ = -2, namely $^{48}$Fe, $^{52}$Ni and $^{56}$Zn, produced in an experiment carried out at GANIL, are reported. In ...all the cases we have extracted the half-lives and the total $\beta$-delayed proton emission branching ratios. We have measured the individual $\beta$-delayed protons and $\beta$-delayed $\gamma$ rays with their branching ratios. Decay schemes have been determined for the three nuclei, and new energy levels are identified in the corresponding daughter nuclei. Competition between $\beta$-delayed protons and gammas is observed in the de-excitation of the $T$ = 2 Isobaric Analogue States in all three cases. Absolute Fermi and Gamow-Teller transition strengths have been determined. The mass excesses of the nuclei under study have been deduced. In addition, we discuss in detail the data analysis taking as a test case $^{56}$Zn, where the exotic $\beta$-delayed $\gamma$-proton decay has been observed.
Full text
Available for:
CMK, CTK, FMFMET, IJS, NUK, PNG, UM
PDF
