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Belle II silicon vertex detector
Belle II-SVD Collaboration,Adamczyk, K.,Aihara, H.,Angelini, C.,Aziz, T.,Babu, V.,Bacher, S.,Bahinipati, S.,Barberio, E.,Baroncelli, Ti.,Baroncelli, To.,Basith, A.K.,Batignani, G.,Bauer, A.,Behera, P. North-Holland 2016 Nuclear Instruments & Methods in Physics Research. Vol.831 No.-
The Belle II experiment at the SuperKEKB collider in Japan is designed to indirectly probe new physics using approximately 50 times the data recorded by its predecessor. An accurate determination of the decay-point position of subatomic particles such as beauty and charm hadrons as well as a precise measurement of low-momentum charged particles will play a key role in this pursuit. These will be accomplished by an inner tracking device comprising two layers of pixelated silicon detector and four layers of silicon vertex detector based on double-sided microstrip sensors. We describe herein the design, prototyping and construction efforts of the Belle-II silicon vertex detector.
A bonding study toward the quality assurance of Belle-II silicon vertex detector modules
Belle-II SVD Collaboration,Kang, K.H.,Jeon, H.B.,Park, H.,Uozumi, S.,Adamczyk, K.,Aihara, H.,Angelini, C.,Aziz, T.,Babu, V.,Bacher, S.,Bahinipati, S.,Barberio, E.,Baroncelli, T.,Basith, A.K.,Batignani North-Holland 2016 Nuclear instruments & methods in physics research. Vol.831 No.-
A silicon vertex detector (SVD) for the Belle-II experiment comprises four layers of double-sided silicon strip detectors (DSSDs), assembled in a ladder-like structure. Each ladder module of the outermost SVD layer has four rectangular and one trapezoidal DSSDs supported by two carbon-fiber ribs. In order to achieve a good signal-to-noise ratio and minimize material budget, a novel chip-on-sensor ''Origami'' method has been employed for the three rectangular sensors that are sandwiched between the backward rectangular and forward (slanted) trapezoidal sensors. This paper describes the bonding procedures developed for making electrical connections between sensors and signal fan-out flex circuits (i.e., pitch adapters), and between pitch adapters and readout chips as well as the results in terms of the achieved bonding quality and pull force.
The Gendering of Religious Experience : Ecstatic Trance in Cheondogyo
Kirsten BELL Ewha Womans University Press 2003 Asian Journal of Women's Studies(AJWS) Vol.9 No.2
Cheondogyo is a Korean religion which espouses a central doctrine that has often been labelled 'radically egalitarian.' However, although religious ideologies emphasize gender equality, in practice these themes are translated in ways that seem to limit women's access to power. These gender differences are most apparent in ecstatic trance, which occurs reasonably often during religious training sessions. While legitimized by the religion's founder as a key source of spiritual enlightenment, the more boisterous forms of ecstatic trance are viewed with hostility. Because these forms of trance are exclusive to women, this condemnation of ecstatic trance becomes a condemnation of a largely female expression of religiosity. Moreover, ecstatic trance is seen to confirm a female affinity for instinctive spirituality, which deems them unsuitable for the types of leadership positions currently dominated by men.
Inés Gil Prados,Mónica Bellón del Amo,Rebeca Ruiz Román,Francisco Javier García Santos 대한내시경복강경외과학회 2020 Journal of Minimally Invasive Surgery Vol.23 No.4
After the declaration of the coronavirus disease 2019 (COVID-19) pandemic, gynecological surgery joins the readjustment process that this great global health crisis implies. In the light of current literature, the five steps towards its resilience are described as below; (1) Dynamic prioritization of surgical indications and reintroduction of elective surgeries: Diverse surgical prioritization lists are published including the most common gynecological pathologies. (2) Minimally invasive surgery through laparoscopy and robotic assistance: Some authors suggest a theoretical but unproven risk of viral transmission during these approaches because of the aerosol generation. These theories are opposed to the well-proven advantages of these approaches compared to open surgery. (3) Optimization of surgical procedures, according to the recommendations of different societies aimed at reducing the dispersion of aerosols and surgical smoke. (4) Clinical, epidemiological and microbiological screening of all patients awaiting prompt surgery: This screening should be adapted to the local alert state. (5) Protection through the reduction of number of persons present in the operating room, and the use of adapted personal protective equipment according to physical proximity to the patient.
( Renata Vinholes Oliveira Da Rocha ),( Maria Isabel Morgan Martins ),( Flavia Tasmim Techera Antunes ),( Marcia Gerhardt Martins ),( Adriane Belló Klein ),( Dione Silva Corrêa ),( Alessandra Hubner D 대한폐경학회 2021 대한폐경학회지 Vol.27 No.3
Objectives: Menopause induces changes in neuronal transmission, leading to anxiety and depression. Changes in the brain’s glutamate levels cause psychological behavior in postmenopausal women. Omega-3 has been studied to improve some of these behaviors. Methods: Twenty-four female Wistar rats were divided into four groups: sham-operated treated with water (SO-W), sham-operated treated with omega-3 (SO-O), ovariectomized (OVX) treated with water (OVX-W), and bilateral OVX treated with omega-3 (OVX-O). These treatments were performed for 20 days via gavage, before and after surgery, totaling 40 days. Results: In the forced swimming, elevated plus-maze, and open field tests to assess behaviors, such as depression and anxiety, omega-3 improved these behaviors in both treated groups. The levels of thiobarbituric acid reactive substances (TBARS) in the brain were not different between the groups; however, there was a significant decrease in the catalase activity in the SO-O group compared with the SO-W group (P < 0.05). The glutamate level in the cerebrospinal fluid (CSF) was elevated in the SO-O group (P < 0.001) but not in the OVX-W or OVX-O groups. Conclusions: These results bring novel data when related to the glutamatergic system in the SO-O group. This has suggested that the action mechanism of omega-3 was not dependent on glutamate levels in the CSF of the OVX group, but it played a regulatory role in the sham-operated animals. To confirm this, more studies are needed to explore this field when relating to the estrogen and glutamate receptor changes in specific brain regions.
Belle Collaboration,Chen, W.T.,Abe, K.,Abe, K.,Adachi, I.,Aihara, H.,Anipko, D.,Aulchenko, V.,Bakich, A.M.,Barberio, E.,Bay, A.,Bedny, I.,Bitenc, U.,Bizjak, I.,Blyth, S.,Bondar, A.,Bozek, A.,Bracko, M North-Holland Pub. Co 2007 Physics letters: B Vol.651 No.1
K<SUB>S</SUB><SUP>0</SUP>K<SUB>S</SUB><SUP>0</SUP> production in two-photon collisions has been studied using a 397.6 fb<SUP>-1</SUP> data sample collected with the Belle detector at the KEKB e<SUP>+</SUP>e<SUP>-</SUP> collider. For the first time the cross sections are measured in the two-photon center-of-mass energy range between 2.4 GeV and 4.0 GeV and angular range |cosθ<SUP>*</SUP>|<0.6. Combining the results with measurements of γγ->K<SUP>+</SUP>K<SUP>-</SUP> from Belle, we observe that the cross section ratio σ(K<SUB>S</SUB><SUP>0</SUP>K<SUB>S</SUB><SUP>0</SUP>)/σ(K<SUP>+</SUP>K<SUP>-</SUP>) decreases from ∼0.13 to ∼0.01 with increasing energy. Signals for the χ<SUB>c0</SUB> and χ<SUB>c2</SUB> charmonium states are also observed.
Search for resonant B<sup>+</sup>/-->K<sup>+</sup>/-h->K<sup>+</sup>/-γγ decays at Belle
Belle Collaboration,Wicht, J.,Adachi, I.,Aihara, H.,Anipko, D.,Aulchenko, V.,Aushev, T.,Bakich, A.M.,Barberio, E.,Bedny, I.,Bitenc, U.,Bizjak, I.,Bondar, A.,Bozek, A.,Bracko, M.,Brodzicka, J.,Browder, North-Holland Pub. Co 2008 Physics letters: B Vol.662 No.4
We report measurements and searches for resonant B<SUP>+</SUP>/-->K<SUP>+</SUP>/-h->K<SUP>+</SUP>/-γγ decays where h is a η, η<SUP>'</SUP>, η<SUB>c</SUB>, η<SUB>c</SUB>(2S), χ<SUB>c0</SUB>, χ<SUB>c2</SUB>, J/ψ meson or the X(3872) particle. The results are based on a data sample containing 535 million BB@? pairs collected with the Belle detector at the KEKB e<SUP>+</SUP>e<SUP>-</SUP> asymmetric-energy collider operating at the @?(4S) resonance. Signals are observed in the modes with η and η<SUP>'</SUP>, and we obtain evidence for a signal in the mode with η<SUB>c</SUB>. We measure B(B<SUP>+</SUP>/-->K<SUP>+</SUP>/-η->K<SUP>+</SUP>/-γγ)=(0.87<SUB>-0.15</SUB><SUP>+0.16</SUP>(stat)<SUB>-0.07</SUB><SUP>+0.10</SUP>(syst))x10<SUP>-6</SUP>, B(B<SUP>+</SUP>/-->K<SUP>+</SUP>/-η<SUP>'</SUP>->K<SUP>+</SUP>/-γγ)=(1.40<SUB>-0.15</SUB><SUP>+0.16</SUP>(stat)<SUB>-0.12</SUB><SUP>+0.15</SUP>(syst))x10<SUP>-6</SUP> and B(B<SUP>+</SUP>/-->K<SUP>+</SUP>/-η<SUB>c</SUB>->K<SUP>+</SUP>/-γγ)=(0.22<SUB>-0.07</SUB><SUP>+0.09</SUP>(stat)<SUB>-0.02</SUB><SUP>+0.04</SUP>(syst))x10<SUP>-6</SUP>. We set upper limits on the branching fractions of the other modes.