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BACKGROUND: Presenteeism refers to being present at work but experiencing reduced productivity due to health problems, and has been known to be related to sleep loss. Workers commonly sleep longer on days off than on workdays, and presenteeism may be reduced with extended sleep on days off. AIMS: This study aimed to determine the association between sleep duration both on workdays and days off and presenteeism. METHODS: The participants were 1967 workers who engaged in work for 5 days and rested for 2 days weekly. Sleep duration was classified into less than 6 hours (short; S), 6-8 hours (medium; M), and 9 hours or longer (long; L), for workdays and days off, respectively. Presenteeism was assessed using the World Health Organization Health and Work Performance Questionnaire. RESULTS: On both workdays and days off, compared to medium sleep duration, short sleep duration was significantly associated with increased odds of presenteeism. The odds of presenteeism were significantly increased for S-S (odds ratio [OR] 2.17, 95% confidence interval [CI]1.40-3.37), S-M (OR 1.59, 95% CI 1.14-2.22), S-L (OR 2.71, 95% CI 1.05-7.00), and M-S (OR 6.82, 95% CI 2.71-17.17) combined sleep duration for workdays and days off, respectively, compared to an M-M (reference). CONCLUSIONS: Sleep loss on workdays cannot be compensated for with longer sleep on days off. This study suggests that sufficient sleep duration on both workdays and days off is important for reducing presenteeism.
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Presentismo , Sueño , Humanos , Presentismo/estadística & datos numéricos , Masculino , Femenino , Adulto , Encuestas y Cuestionarios , Sueño/fisiología , Persona de Mediana Edad , Factores de Tiempo , Tolerancia al Trabajo Programado/psicología , Tolerancia al Trabajo Programado/fisiología , Privación de Sueño/complicaciones , Privación de Sueño/psicología , Eficiencia , Absentismo , Duración del SueñoAsunto(s)
COVID-19 , Vacunas contra la Influenza , Gripe Humana , Humanos , Anciano , Vacunas contra la Influenza/uso terapéutico , Cobertura de Vacunación , Pandemias/prevención & control , Japón/epidemiología , Salud Pública , COVID-19/epidemiología , COVID-19/prevención & control , Gripe Humana/epidemiología , Gripe Humana/prevención & control , VacunaciónRESUMEN
OBJECTIVE: We aimed to determine how municipal subsidies for seasonal influenza vaccines for the elderly affected vaccination coverage and health outcomes and how responses to vaccine prices changed during the COVID-19 pandemic. STUDY DESIGN AND METHODS: This ecological study includes 1245 municipalities in Japan between 2019 and 2020. Fixed-effects regression analysis was performed to evaluate the effect of influenza vaccine cost subsidy for people aged 65 years or older on vaccination coverage, all-cause mortality, and influenza-related mortality. RESULTS: The vaccination rate increased when patients' copayments decreased, and reducing the copayment by 1000 Japanese Yen (JPY) was estimated to increase the vaccination rate by 6.3% (95% confidence interval [CI] 4.5-8.2%) in the adjusted model. When examining the additional effect of a zero price compared to a nearly zero price, we found that a zero price increased the immunization rate by 6.4% (95% CI 1.4-11.5%). The effect of copayment on the increase in vaccination coverage was significantly lower during the pandemic than in the pre-pandemic period. The municipal and prefectural analyses found no association between influenza vaccine copayments and all-cause, influenza, or pneumonia mortality. CONCLUSION: Cost subsidies and the zero-price effect were shown to increase vaccination coverage but were not associated with relevant mortality measures. Although the impact was attenuated under pandemic conditions, cost subsidy effectively increases the vaccination rate.
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We studied the proton-rich T_{z}=-1 nucleus ^{70}Kr through inelastic scattering at intermediate energies in order to extract the reduced transition probability, B(E2;0^{+}â2^{+}). Comparison with the other members of the A=70 isospin triplet, ^{70}Br and ^{70}Se, studied in the same experiment, shows a 3σ deviation from the expected linearity of the electromagnetic matrix elements as a function of T_{z}. At present, no established nuclear structure theory can describe this observed deviation quantitatively. This is the first violation of isospin symmetry at this level observed in the transition matrix elements. A heuristic approach may explain the anomaly by a shape change between the mirror nuclei ^{70}Kr and ^{70}Se contrary to the model predictions.
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Twenty-one two-proton knockout (p,3p) cross sections were measured from neutron-rich nuclei at â¼250 MeV/nucleon in inverse kinematics. The angular distribution of the three emitted protons was determined for the first time, demonstrating that the (p,3p) kinematics are consistent with two sequential proton-proton collisions within the projectile nucleus. Ratios of (p,3p) over (p,2p) inclusive cross sections follow the trend of other many-nucleon removal reactions, further reinforcing the sequential nature of (p,3p) in neutron-rich nuclei.
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Here we present new information on the shape evolution of the very neutron-rich ^{92,94}Se nuclei from an isomer-decay spectroscopy experiment at the Radioactive Isotope Beam Factory at RIKEN. High-resolution germanium detectors were used to identify delayed γ rays emitted following the decay of their isomers. New transitions are reported extending the previously known level schemes. The isomeric levels are interpreted as originating from high-K quasineutron states with an oblate deformation of ßâ¼0.25, with the high-K state in ^{94}Se being metastable and K hindered. Following this, ^{94}Se is the lowest-mass neutron-rich nucleus known to date with such a substantial K hindrance. Furthermore, it is the first observation of an oblate K isomer in a deformed nucleus. This opens up the possibility for a new region of K isomers at low Z and at oblate deformation, involving the same neutron orbitals as the prolate orbitals within the classic Zâ¼72 deformed hafnium region. From an interpretation of the level scheme guided by theoretical calculations, an oblate deformation is also suggested for the ^{94}Se_{60} ground-state band.
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BACKGROUND: To determine whether transcatheter aortic valve implantation (TAVI) improves early (30-day) and midterm (1-year) mortality compared with surgical aortic valve replacement (SAVR), we performed an updated meta-analysis of all the currently available randomised controlled trials (RCTs). METHODS: To identify all RCTs providing both 30-day and 1year mortality after TAVI versus SAVR, PubMed and ClinicalTrials.gov were searched up to and including July 2019. A risk difference (RD) and its 95% confidence interval were generated using data of prespecified outcomes in both the TAVI and SAVR groups. Study-specific estimates were pooled using inverse variance-weighted averages of RDs in the random-effects model. RESULTS: We identified seven eligible high-quality RCTs including a total of 7631 as-treated patients. Pooled analyses demonstrated significantly lower 30-day (RD -0.60%; pâ¯= 0.046) and 1year all-cause mortality (RD -1.12%; pâ¯= 0.03) after TAVI than after SAVR. No funnel plot asymmetry was detected for 30-day and 1year mortality. Meta-regression analyses indicated that RDs of 30-day and 1year mortality between TAVI and SAVR were not modulated by mean Society of Thoracic Surgeons Predicted Risk of Mortality score. Bleeding complications at 30 days and 1 year and stage 2/3 acute kidney injury at 30 days were significantly less frequent after TAVI than after SAVR, whereas major vascular complications and new permanent pacemaker implantation at 30 days and 1 year were significantly more frequent after TAVI than after SAVR. CONCLUSION: The best evidence from the present meta-analysis of all the currently available RCTs suggests that TAVI may reduce 30-day and 1year all-cause mortality compared with SAVR.
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Luxaciones Articulares , Articulación Temporomandibular , Humanos , Cápsula Articular , RecurrenciaAsunto(s)
Anticuerpos Monoclonales/efectos adversos , Antineoplásicos Inmunológicos/efectos adversos , Reacción en el Punto de Inyección/etiología , Linfoma Folicular/tratamiento farmacológico , Choque/fisiopatología , Anticuerpos Monoclonales de Origen Murino , Antígenos CD20/inmunología , Citocinas/sangre , Citocinas/inmunología , Humanos , Reacción en el Punto de Inyección/tratamiento farmacológico , Linfoma Folicular/patología , Masculino , Persona de Mediana Edad , Prednisolona/uso terapéutico , Rituximab , Choque/inmunología , Resultado del TratamientoRESUMEN
AIM: To evaluate the value of virtual monochromatic images (VMIs) at lower energy levels in fast-voltage-switching dual-energy computed tomography (DECT) for assessing pancreatic ductal adenocarcinoma (PDAC). MATERIALS AND METHODS: The institutional review board approved this prospective study. Written informed consent was obtained from all patients. Seventy-four consecutive patients with PDAC underwent dynamic contrast-enhanced DECT. Two radiologists reviewed eight energy levels (40, 45, 50, 55, 60, 65, 70, and 75 keV) of the pancreatic parenchymal phase VMIs. CT attenuation of the PDAC and pancreatic parenchyma, background noise, signal-to-noise ratio (SNR) of the pancreas, tumour-to-pancreas contrast-to-noise ratio (CNR), major and minor axes of PDAC, and qualitative tumour conspicuity were compared among the VMIs at eight energy levels. RESULTS: CT attenuation of PDAC and pancreatic parenchyma, background noise, SNR, and CNR peaked on VMIs at 40 keV with statistically significant difference (p<0.0001) and gradually decreased with increasing energy levels. The reproducibility in measuring tumour size was better on VMIs at 40 keV (28.8 and 29.2 mm of major axis in readers 1 and 2, respectively) and tended to be overestimated at higher energy levels (29.8 and 30.9 mm of major axis at 75 keV in readers 1 and 2, respectively). Qualitative tumour conspicuity was also significantly superior on VMIs at 40 keV than at all other energy levels (p<0.0001). CONCLUSION: VMIs at 40 keV demonstrated significantly increased SNR of the pancreas, CNR, and tumour conspicuity and high reproducibility in measuring tumour size for assessing PDAC.
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Adenocarcinoma/diagnóstico por imagen , Carcinoma Ductal Pancreático/diagnóstico por imagen , Neoplasias Pancreáticas/diagnóstico por imagen , Imagen Radiográfica por Emisión de Doble Fotón/métodos , Tomografía Computarizada por Rayos X/métodos , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Reproducibilidad de los Resultados , Relación Señal-RuidoRESUMEN
Fifty-five inclusive single nucleon-removal cross sections from medium mass neutron-rich nuclei impinging on a hydrogen target at â¼250 MeV/nucleon are measured at the RIKEN Radioactive Isotope Beam Factory. Systematically higher cross sections are found for proton removal from nuclei with an even number of protons as compared to odd-proton number projectiles for a given neutron separation energy. Neutron removal cross sections display no even-odd splitting, contrary to nuclear cascade model predictions. Both effects are understood through simple considerations of neutron separation energies and bound state level densities originating in pairing correlations in the daughter nuclei. These conclusions are supported by comparison with semimicroscopic model predictions, highlighting the enhanced role of low-lying level densities in nucleon-removal cross sections from loosely bound nuclei.
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BACKGROUND: The objective of this randomized phase II trial was to evaluate efficacy and safety of the therapeutic sequence of regorafenib followed by cetuximab, compared with cetuximab followed by regorafenib, as the current standard sequence for metastatic colorectal cancer patients. PATIENTS AND METHODS: Patients with KRAS exon 2 wild-type metastatic colorectal cancer after failure of fluoropyrimidine, oxaliplatin, and irinotecan were randomized to receive sequential treatment with regorafenib followed by cetuximab ± irinotecan (R-C arm), or the reverse sequence [cetuximab ± irinotecan followed by regorafenib (C-R arm)]. The primary end point was overall survival (OS). Key secondary end points included progression-free survival (PFS) with initial treatment (PFS1), PFS with second treatment (PFS2), safety, and quality of life. Exploratory end points included serial biomarker analyses, including oncogenic alterations from circulating tumor DNA or multiple serum or plasma proteins. RESULTS: One-hundred one patients were randomized and eligible for efficacy analysis. Sequential treatment was successful in 86% patients in both arms. Median OS for R-C and C-R was 17.4 and 11.6 months, respectively (P = 0.0293), with a hazard ratio (HR) of 0.61 for OS [95% confidence interval (CI) 0.39-0.96]. The HR for PFS1 (regorafenib in R-C versus cetuximab in C-R) was 0.97 (95% CI 0.61-1.54), and PFS2 (C in R-C versus R in C-R) was 0.29 (95% CI 0.17-0.50). No unexpected safety signals were observed. The quality of life scores during the entire treatment period was not significantly different between the two arms. Circulating biomarker analyses showed emerging oncogenic alterations in RAS, BRAF, EGFR, HER2, and MET, which were more commonly detected after cetuximab than after regorafenib. CONCLUSIONS: The therapeutic sequence of regorafenib followed by cetuximab suggests a longer OS than the current standard sequence.
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Adenocarcinoma/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Colorrectales/tratamiento farmacológico , Recurrencia Local de Neoplasia/tratamiento farmacológico , Adenocarcinoma/secundario , Anciano , Cetuximab/administración & dosificación , Neoplasias Colorrectales/patología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/patología , Compuestos de Fenilurea/administración & dosificación , Pronóstico , Piridinas/administración & dosificación , Tasa de SupervivenciaRESUMEN
BACKGROUND: We have introduced and performed laparoscope-assisted surgery in living donor hepatectomy. The objective of this study was to investigate the long-term results of laparoscope-assisted living donor hepatectomy. METHODS: From 2006 to 2016, laparoscope-assisted living donor hepatectomy was performed in 11 patients (laparoscopic group), and conventional open living donor hepatectomy was performed in 40 patients (conventional group). Intraoperative and postoperative complications were evaluated according to the Clavien-Dindo classification and analyzed in the laparoscopic group for comparison with the conventional group. RESULTS: The median postoperative follow-up period was 88 months (range, 58-120 months) in the laparoscopic group. One donor in the conventional group died from a motor vehicle crash 16 months after surgery. All others were alive and returned to their preoperative activity level. Regarding intraoperative and early (≤90 days after surgery) postoperative complications, 1 patient (1/11, 9%) showed biliary fistula (Grade IIIa) in the laparoscopic group. In the conventional group, 6 patients (6/40, 15%) showed surgical complications of Grade I in 2 patients and Grade II in 4 patients. Regarding late (>90 days after surgery) postoperative complications, biliary stricture was observed in 1 patient of the laparoscopic group; this patient developed hepatolithiasis 6 years after surgery, and endoscopic lithotomy and extracorporeal shockwave lithotripsy were performed, resulting in successful treatment. Late complications were not observed in the conventional group. CONCLUSION: One donor in the laparoscopic group showed Grade IIIa late complications. The introduction of laparoscopic surgery to living donor hepatectomy should be performed carefully.
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Hepatectomía/métodos , Laparoscopía/métodos , Donadores Vivos , Complicaciones Posoperatorias/epidemiología , Adulto , Femenino , Estudios de Seguimiento , Humanos , Laparoscopía/efectos adversos , Trasplante de Hígado/efectos adversos , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/etiología , Recolección de Tejidos y Órganos/efectos adversosRESUMEN
A 75-year-old Japanese man presented at our outpatient clinic with pain on the right side of his tongue. Comparison of histological and dermoscopic images showed that areas with hyperkeratosis were opaque white, areas above the papillary dermis were reddish, and that the lesion looked whiter on dermoscopy the longer the epithelial rete ridges were. A dermatocope shows structural information from the epidermis as well as the upper dermis, and could improve early diagnosis of oral mucosal squamous carcinoma in situ.
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Dermoscopía/métodos , Leucoplasia Bucal/diagnóstico , Enfermedades de la Lengua/diagnóstico , Anciano , Diagnóstico Diferencial , Humanos , Leucoplasia Bucal/patología , Masculino , Enfermedades de la Lengua/patologíaRESUMEN
Dense crossbar arrays of non-volatile memory (NVM) can potentially enable massively parallel and highly energy-efficient neuromorphic computing systems. The key requirements for the NVM elements are continuous (analog-like) conductance tuning capability and switching symmetry with acceptable noise levels. However, most NVM devices show non-linear and asymmetric switching behaviors. Such non-linear behaviors render separation of signal and noise extremely difficult with conventional characterization techniques. In this study, we establish a practical methodology based on Gaussian process regression to address this issue. The methodology is agnostic to switching mechanisms and applicable to various NVM devices. We show tradeoff between switching symmetry and signal-to-noise ratio for HfO2-based resistive random access memory. Then, we characterize 1000 phase-change memory devices based on Ge2Sb2Te5 and separate total variability into device-to-device variability and inherent randomness from individual devices. These results highlight the usefulness of our methodology to realize ideal NVM devices for neuromorphic computing.
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BACKGROUND: The use of screws and the presence of screw holes may cause acetabular osteolysis and implant loosening in cementless total hip arthroplasty (THA) using conventional polyethylene. In contrast, this issue is not fully understood using highly crosslinked polyethylene (HXLPE), particularly in large comparative study. Therefore, we performed a case-control study to assess the influence of screw usage and screw holes on: (1) implant fixation and osteolysis and (2) polyethylene steady-state wear rate, using cases with HXLPE liners followed up for 7-10 years postoperatively. HYPOTHESIS: The screw usage and screw holes adversely affect the implant fixation and incidence of wear-related osteolysis in THA with HXLPE. PATIENTS AND METHODS: We reviewed 209 primary cementless THAs performed with 26-mm cobalt-chromium heads on HXLPE liners. To compare the effects of the use of screws and the presence of screw holes, the following groups were established: (1) with-screw (n=140); (2) without-screw (n=69); (3) no-hole (n=27) and (4) group in which a cup with screw holes, but no screw was used (n=42). Two adjunct groups (no-hole cups excluded) were established to compare the differences in the two types of HXLPE: (5) remelted group (n=100) and (6) annealed group (n=82). Implant stability and osteolysis were evaluated by plain radiography and computed tomography. The wear rate from 1 year to the final evaluation was measured using plain X-rays and PolyWare Digital software. RESULTS: All cups and stems achieved bony fixation. On CT-scan, no acetabular osteolysis was found, but there were 3 cases with a small area of femoral osteolysis. The mean steady-state wear rate of each group was (1) 0.031±0.022, (2) 0.033±0.035, (3) 0.031±0.024, (4) 0.029±0.018, (5) 0.030±0.018 and (6) 0.034±0.023mm/year, respectively. A comparison of the effects of screw usage or screw holes found no significant between-group differences in the implant stability, prevalence of osteolysis [no acetabular osteolysis and 3/209 at femoral side (1.4%)] and steady-state wear rate. DISCUSSION: This study suggests that there are no adverse effects on the results of THA with HXLPE from the use of cups with screw holes and the use of screws for cup fixation. LEVEL OF EVIDENCE: Level III retrospective case-control study.
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Artroplastia de Reemplazo de Cadera/instrumentación , Tornillos Óseos/efectos adversos , Prótesis de Cadera , Osteólisis/etiología , Polietileno , Falla de Prótesis/etiología , Acetábulo/diagnóstico por imagen , Anciano , Estudios de Casos y Controles , Femenino , Fémur/diagnóstico por imagen , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Osteólisis/diagnóstico por imagen , Polietileno/efectos adversos , Diseño de Prótesis , Estudios Retrospectivos , Tomografía Computarizada por Rayos XRESUMEN
Tissue inhibitor of metalloproteinase-1 (TIMP-1), a member of the TIMP family (TIMP-1 to 4), is highly expressed in various types of cancer and forms a complex with its receptor CD63 and Integrin ß1. However, the precise oncogenic mechanism of TIMP-1 remains unclear. Yes-associated protein (YAP) and transcriptional co-activator with PDZ binding motif (TAZ) are transcription co-activators enhancing the transcription of specific genes related to cell proliferation. But the mechanism of aberrant YAP/TAZ activation in cancer is not fully understood. Here, we showed that TIMP-1 activates YAP/TAZ as novel downstream targets to promote cell proliferation. The TIMP-1-CD63-Integrin ß1 axis activates Src and promotes RhoA-mediated F-actin assembly, leading to LATS1/2 inactivation. This results in under-phosphorylation, protein stabilization and nuclear translocation of YAP/TAZ (YAP/TAZ activation); CTGF production; and cell proliferation. Furthermore, the TIMP-1-YAP/TAZ axis is aberrantly activated in various types of cancer cells or tissues. TIMP-1 knockdown inhibits cell proliferation through YAP/TAZ inactivation in cancer cells. This study found that TIMP-1 accelerates cell proliferation through YAP/TAZ activation in cancer, and suggests the TIMP-1-YAP/TAZ axis may be a novel potential drug target for cancer patients.
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Proteínas Adaptadoras Transductoras de Señales/metabolismo , Proliferación Celular/genética , Péptidos y Proteínas de Señalización Intracelular/metabolismo , Neoplasias/patología , Fosfoproteínas/metabolismo , Inhibidor Tisular de Metaloproteinasa-1/metabolismo , Proteínas Adaptadoras Transductoras de Señales/genética , Línea Celular Tumoral , Núcleo Celular , Técnicas de Silenciamiento del Gen , Células HEK293 , Humanos , Péptidos y Proteínas de Señalización Intracelular/genética , Neoplasias/genética , Fosfoproteínas/genética , Fosforilación , ARN Interferente Pequeño/metabolismo , Transducción de Señal/genética , Inhibidor Tisular de Metaloproteinasa-1/genética , Transactivadores , Factores de Transcripción , Proteínas Coactivadoras Transcripcionales con Motivo de Unión a PDZ , Proteínas Señalizadoras YAPRESUMEN
We report on the first γ-ray spectroscopy of low-lying states in neutron-rich ^{98,100}Kr isotopes obtained from ^{99,101}Rb(p,2p) reactions at â¼220 MeV/nucleon. A reduction of the 2_{1}^{+} state energies beyond N=60 demonstrates a significant increase of deformation, shifted in neutron number compared to the sharper transition observed in strontium and zirconium isotopes. State-of-the-art beyond-mean-field calculations using the Gogny D1S interaction predict level energies in good agreement with experimental results. The identification of a low-lying (0_{2}^{+}, 2_{2}^{+}) state in ^{98}Kr provides the first experimental evidence of a competing configuration at low energy in neutron-rich krypton isotopes consistent with the oblate-prolate shape coexistence picture suggested by theory.
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Our aim was to identify a suitable microRNA housekeeping gene for real-time PCR analysis of bovine mastitis-related microRNA in milk. We identified , , and as housekeeping gene candidates on the basis of previous Solexa sequencing results. Threshold cycle (CT) values for , , and did not differ between milk from control cows and milk from mastitis-affected cows. NormFinder software identified as the most stable single housekeeping gene. We evaluated the suitability of the housekeeping gene candidates by using them to assess expression levels of the inflammation-related gene . Regardless of the housekeeping gene candidates used for normalization, relative expression levels of were significantly higher in mastitis-affected samples than in control samples. However, of all the housekeeping genes and gene combinations investigated, normalization with alone generated the difference in relative expression between mastitis-affected and control samples with the highest significance. These results suggest that is suitable for use as a housekeeping gene for analysis of bovine mastitis-related microRNA in milk.
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Regulación de la Expresión Génica , Genes Esenciales/genética , Mastitis Bovina/genética , MicroARNs/análisis , Leche , Animales , Bovinos , Femenino , Reacción en Cadena en Tiempo Real de la Polimerasa/veterinariaRESUMEN
Excited states in the nucleus ^{133}Sn, with one neutron outside the double magic ^{132}Sn core, were populated following one-neutron knockout from a ^{134}Sn beam on a carbon target at relativistic energies at the Radioactive Isotope Beam Factory at RIKEN. Besides the γ rays emitted in the decay of the known neutron single-particle states in ^{133}Sn additional γ strength in the energy range 3.5-5.5 MeV was observed for the first time. Since the neutron-separation energy of ^{133}Sn is low, S_{n}=2.402(4) MeV, this observation provides direct evidence for the radiative decay of neutron-unbound states in this nucleus. The ability of electromagnetic decay to compete successfully with neutron emission at energies as high as 3 MeV above threshold is attributed to a mismatch between the wave functions of the initial and final states in the latter case. These findings suggest that in the region southeast of ^{132}Sn nuclear structure effects may play a significant role in the neutron versus γ competition in the decay of unbound states. As a consequence, the common neglect of such effects in the evaluation of the neutron-emission probabilities in calculations of global ß-decay properties for astrophysical simulations may have to be reconsidered.