57 research outputs found
Incidencia de la administración de recursos humanos en el desempeño laboral del Instituto Politécnico de Estelí –IPE, en el primer semestre 2016
En el presente estudio de investigación, se analizó la incidencia de la administración de recursos humanos en el desempeño laboral de los trabajadores del instituto politécnico Estelí en el primer semestre del año 2016, la cual describe el proceso que se utiliza para evaluar el personal. Posteriormente, se identificó el método de evaluación que se utilizan actualmente en la facultad con el fin de realizar una comparación entre la teoría y la práctica. Generalmente la función de recursos humanos está compuesta por áreas tales como el reclutamiento y selección, contratación capacitación, administración y gestión del personal durante la permanencia en la empresa.
Al final del documento se encuentran las conclusiones y recomendaciones, las cuales permitirán a la facultad tomarlas en cuenta para mejora continua en la incidencia de la administración de recurso humano, donde la información fue encontrada en libros, páginas web, revistas, entre otras información de mucha importancia. Al final del documento se encuentran las conclusiones y recomendaciones, las cuales permitirán a la facultad tomarlas en cuenta para mejora continua en la incidencia de la administración de recurso humano, donde la información fue encontrada en libros, páginas web, revistas, entre otras información de mucha importancia
Measuring the Complexity of Consciousness
The quest for a scientific description of consciousness has given rise to new
theoretical and empirical paradigms for the investigation of phenomenological
contents as well as clinical disorders of consciousness. An outstanding
challenge in the field is to develop measures that uniquely quantify global
brain states tied to consciousness. In particular, information-theoretic
complexity measures such as integrated information have recently been proposed
as measures of conscious awareness. This suggests a new framework to
quantitatively classify states of consciousness. However, it has proven
increasingly difficult to apply these complexity measures to realistic brain
networks. In part, this is due to high computational costs incurred when
implementing these measures on realistically large network dimensions.
Nonetheless, complexity measures for quantifying states of consciousness are
important for assisting clinical diagnosis and therapy. This article is meant
to serve as a lookup table of measures of consciousness, with particular
emphasis on clinical applicability of these measures. We consider both,
principle-based complexity measures as well as empirical measures tested on
patients. We address challenges facing these measures with regard to realistic
brain networks, and where necessary, suggest possible resolutions.Comment: 9 page
Aurora-A controls pre-replicative complex assembly and DNA replication by stabilizing geminin in mitosis
Geminin, an essential factor for DNA replication, directly binds to the licensing factor Cdt1 and inhibits pre-replicative complex formation to prevent re-replication. In G1, geminin levels are controlled by the anaphase-promoting complex/cyclosome (APC/C) ubiquitin ligase complex, which targets geminin for proteasomal degradation to allow pre-replicative complex formation. Conversely, from S to G2, geminin is stabilized due to APC/C ubiquitin ligase complex inhibition, ensuring the inhibition of pre-replicative complex formation. However, mitotic regulation of geminin has hitherto not been described. Here we show that Aurora-A phosphorylates geminin on Thr25 during M phase, and this event induces geminin stabilization by preventing its APC/C ubiquitin ligase complex-mediated degradation during mitosis. In turn, stabilized geminin inhibits SCFSkp2-mediated degradation of Cdt1 to ensure pre-replicative complex formation in the ensuing S phase. The Aurora-A–geminin–Cdt1 axis therefore represents a critical regulator of proper DNA replication
The Effect of Photocoagulation in Ischemic Areas to Prevent Recurrence of Diabetic Macular Edema After Intravitreal Bevacizumab Injection
Citation: Takamura Y, Tomomatsu T, Matsumura T, et al. The effect of photocoagulation in ischemic areas to prevent recurrence of diabetic macular edema after intravitreal bevacizumab injection. Invest Ophthalmol Vis Sci. 2014;55:4741-4746. DOI: 10.1167/iovs.14-14682 PURPOSE. This study aimed to investigate whether targeted retinal photocoagulation (TRP) for nonperfused areas (NPAs) could have a preventive effect on the recurrence of diabetic macular edema (DME) after intravitreal injection of bevacizumab (IVB). METHODS. Eyes in the IVB group received 1.25 mg IVB, and eyes in the IVBþTRP group received 1.25 mg IVB combined with TRP of NPAs. Two weeks before IVB administration, grid/focal photocoagulation (PC) had been performed in both groups. After IVB treatment, the best corrected visual acuity (BCVA) and central retinal thickness (CRT), determined by optical coherence tomography, were measured every month for 6 months. RESULTS. Fifty-two patients with DME were enrolled and randomized to an IVB group (n ¼ 26) and an IVBþTRP group (n ¼ 26). After IVB, the CRT decreased temporally, and the CRT significantly increased at 2 months and thereafter in the IVB group but did not increase significantly in the IVBþTRP group. Maximum increase in CRT after IVB was significantly correlated with the width of NPAs in the IVB group (P ¼ 0.0368), but not in the IVBþTRP group. Best corrected visual acuity in the IVBþTRP group was significantly better than that in the IVB group 5 and 6 months after treatment (P < 0.05). CONCLUSIONS. Targeted retinal photocoagulation for NPAs was effective to maintain the reduced CRT after grid/focal PC and IVB for patients with DME. These results suggest that retinal ischemia is associated with the pathogenesis of recurrence of DME after IVB. (www. umin.ac.jp/ctr number, UMIN000007566.
Evaluation of Bleb Fluid After Baerveldt Glaucoma Implantation Using Magnetic Resonance Imaging
Abstract We evaluated bleb fluid images taken after Baerveldt glaucoma implantation. T2-weighted images of bleb fluid were scanned with 3 Tesla magnetic resonance imaging in 52 patients who had undergone tube-shunt surgery using the 350-mm2 endplate Baerveldt glaucoma implant; three-dimensional images were constructed from these images. Bleb fluid images were classified into either a layer of bleb fluid on either side of the endplate (double bleb layer group; n = 24) or one layer outside the endplate (single bleb layer group; n = 28). Despite there being no correlation between the bleb volume and the postoperative IOP (r = −0.080; P = 0.57), the double bleb layer group had significantly lower postoperative IOPs than the single bleb layer group (12.3 ± 3.8 mmHg vs. 14.7 ± 4.1 mmHg, respectively; P = 0.033). The single bleb layer was significantly related to higher numbers of prior intraocular surgeries (relative risk = 2.85; P = 0.0014). Formation of a layer of bleb fluid on either side of the endplate may have resulted in the lower postoperative IOPs after Baerveldt glaucoma implantation. Repeated intraocular surgery adversely affects formation of the double bleb layer
T cells bearing anti-CD19 and/or anti-CD38 chimeric antigen receptors effectively abrogate primary double-hit lymphoma cells
Abstract Patients with B cell lymphomas bearing MYC translocation combined with translocation involving other genes, such as BCL2, BCL3, or BCL6, defined as double-hit lymphoma (DHL), have a poor prognosis. Recent studies expanded the concept to include double-expressing lymphoma (DEL) that co-overexpresses MYC protein with either of those proteins. Accordingly, we defined cytogenetic DHL and DEL as primary DHL. An adoptive T cell immunotherapy with a chimeric antigen receptor (CAR) has been clinically shown to exhibit cytotoxicity in refractory neoplasias. We revealed the marked cytotoxicity of anti-CD19- and/or anti-CD38-CAR T cells against primary DHL cells from patients. CD19- and/or CD38-specific T cells were co-cultured with cytogenetic DHL (n = 3) or DEL (n = 2) cells from five patients for 3 days. We examined whether T cells retrovirally transduced with each vector showed cytotoxicity against DHL cells. Anti-CD19- and/or anti-CD38-CAR T cells were co-cultured with primary DHL cells at an E:T ratio of 1:2 for 3 days. Anti-CD19- and anti-CD38-CAR T cells completely abrogated these DHL cells, respectively. Anti-CD19-CAR T cells synergistically exerted collaborative cytotoxicity against these primary DHL cells with anti-CD38-CAR T cells. Therefore, refractory DHL cells can be efficiently abrogated by the clinical use of T cells with anti-CD19- and/or anti-CD38-CAR
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