Contaduría pública: su importancia en la toma de decisiones empresariales

La Contaduría Pública es aquel estudio basado en analizar todo lo relacionado con el seguimiento financiero de instituciones públicas, ya sean escuelas, hospitales, cárceles, entre otras, en este artículo se expondrá la relevancia de la Contaduría Pública, referentes que apoyan su necesidad para la toma de decisiones y cómo se percibe en la actualidad, metodológicamente se hizo buscando bases de datos e investigaciones, por lo que el artículo es de carácter cualitativo, enmarcado en la epistemología de las ciencias sociales, específicamente la económica y con énfasis en la Contaduría, por lo que se encontró que cuando se trata de realizar tratos o negocios con otras entidades, sirve la profesión del Contador Público para la toma de decisiones es lo que va a determinar si trae rentabilidad, éxitos o en su defecto perdidas a las empresas

Elevated Cardiac Troponin I in Sepsis and Septic Shock: No Evidence for Thrombus Associated Myocardial Necrosis

Elevated cardiac troponin I (cTnI) is frequently observed in patients with severe sepsis and septic shock. However, the mechanisms underlying cTnI release in these patients are still unknown. To date no data regarding coagulation disturbances as a possible mechanism for cTnI release during sepsis are available.Consecutive patients with systemic inflammatory response syndrome (SIRS), sepsis or septic shock without evidence of an acute coronary syndrome were analyzed. Coagulation parameters (clotting time (CT), clot formation time (CFT), maximum clot firmness (MCF), alpha-angle) were assessed in native whole blood samples, and using specific activators to evaluate the extrinsic and intrinsic as well as the fibrin component of the coagulation pathway with the use of rotational thrombelastometry (ROTEM). Thirty-eight patients were included and 22 (58%) were cTnI-positive. Baseline characteristics between TnI-positive and -negative patients were similar. The CT, CFT, MCF and the alpha-angle were similar between the groups with trends towards shorter CT in the extrinsic and fibrin activation.We found no differences in coagulation parameters analyzed with rotational thrombelastometry between cTnI-positive and -negative patients with SIRS, severe sepsis, and septic shock. These findings suggest that pathophysiological mechanisms other than thrombus-associated myocardial damage might play a major role, including reversible myocardial membrane leakage and/or cytokine mediated apoptosis in these patients

The quorum sensing com system regulates pneumococcal colonisation and invasive disease in a pseudo-stratified airway tissue model.

BACKGROUND The effects of the com quorum sensing system during colonisation and invasion of Streptococcus pneumoniae (Spn) are poorly understood. METHODS We developed an ex vivo model of differentiated human airway epithelial (HAE) cells with beating ciliae, mucus production and tight junctions to study Spn colonisation and translocation. HAE cells were inoculated with Spn wild-type TIGR4 (wtSpn) or its isogenic ΔcomC quorum sensing-deficient mutant. RESULTS Colonisation density of ΔcomC mutant was lower after 6 h but higher at 19 h and 30 h compared to wtSpn. Translocation correlated inversely with colonisation density. Transepithelial electric resistance (TEER) decreased after pneumococcal inoculation and correlated with increased translocation. Confocal imaging illustrated prominent microcolony formation with wtSpn but disintegration of microcolony structures with ΔcomC mutant. ΔcomC mutant showed greater cytotoxicity than wtSpn, suggesting that cytotoxicity was likely not the mechanism leading to translocation. There was greater density- and time-dependent increase of inflammatory cytokines including NLRP3 inflammasome-related IL-18 after infection with ΔcomC compared with wtSpn. ComC inactivation was associated with increased pneumolysin expression. CONCLUSIONS ComC system allows a higher organisational level of population structure resulting in microcolony formation, increased early colonisation and subsequent translocation. We propose that ComC inactivation unleashes a very different and possibly more virulent phenotype that merits further investigation

Efficient replication of the novel human betacoronavirus EMC on primary human epithelium highlights its zoonotic potential

The recent emergence of a novel human coronavirus (HCoV-EMC) in the Middle East raised considerable concerns, as it is associated with severe acute pneumonia, renal failure, and fatal outcome and thus resembles the clinical presentation of severe acute respiratory syndrome (SARS) observed in 2002 and 2003. Like SARS-CoV, HCoV-EMC is of zoonotic origin and closely related to bat coronaviruses. The human airway epithelium (HAE) represents the entry point and primary target tissue for respiratory viruses and is highly relevant for assessing the zoonotic potential of emerging respiratory viruses, such as HCoVEMC. Here, we show that pseudostratified HAE cultures derived from different donors are highly permissive to HCoV-EMC infection, and by using reverse transcription (RT)-PCR and RNAseq data, we experimentally determined the identity of seven HCoV-EMC subgenomic mRNAs. Although the HAE cells were readily responsive to type I and type III interferon (IFN), we observed neither a pronounced inflammatory cytokine nor any detectable IFN responses following HCoV-EMC, SARS-CoV, or HCoV-229E infection, suggesting that innate immune evasion mechanisms and putative IFN antagonists of HCoV-EMC are operational in the new host. Importantly, however, we demonstrate that both type I and type III IFN can efficiently reduce HCoVEMC replication in HAE cultures, providing a possible treatment option in cases of suspected HCoV-EMC infection. Importance A novel human coronavirus, HCoV-EMC, has recently been described to be associated with severe respiratory tract infection and fatalities, similar to severe acute respiratory syndrome (SARS) observed during the 2002-2003 epidemic. Closely related coronaviruses replicate in bats, suggesting that, like SARS-CoV, HCoV-EMC is of zoonotic origin. Since the animal reservoir and circumstances of zoonotic transmission are yet elusive, it is critically important to assess potential species barriers of HCoV-EMC infection. An important first barrier against invading respiratory pathogens is the epithelium, representing the entry point and primary target tissue of respiratory viruses. We show that human bronchial epithelia are highly susceptible to HCoV-EMC infection. Furthermore, HCoV-EMC, like other coronaviruses, evades innate immune recognition, reflected by the lack of interferon and minimal inflammatory cytokine expression following infection. Importantly, type I and type III interferon treatment can efficiently reduce HCoV-EMC replication in the human airway epithelium, providing a possible avenue for treatment of emerging virus infections

"La bancarización y su incidencia en los estados financieros de la empresa Televisión Tarapoto San Martín S.A.C., distrito de Tarapoto 2015.

La investigación titulada “La bancarización y su incidencia en los estados financieros de la empresa televisión San Martin S.A.C., distrito Tarapoto, año 2015”, es del tipo aplicativa, descriptiva y observacional; según el nivel de investigación es explicativa y exploratoria; la recolección y análisis de datos es de tipo cuantitativo. Luego de aplicado el proceso metodológico los instrumentos de ratios de solvencia, rentabilidad y de gestión; y analizado los resultados obtenidos se arriban a la conclusión de que las aplicaciones de la bancarización en la Empresa TV SAN, es importante porque gracia a su aplicación ayuda a contribuir con las recaudaciones. La incidencia de la bancarización en los estados financieros de la Empresa Televisión San Martín SAC en el año 2015, desde el punto de vista contable – tributario es elevada, pues si bien existen gastos no bancarizados, al no presentarlos como gastos no deducibles cumplen con la normativa de bancarización y la Ley del Impuesto a la Renta, por tanto, se eximen de sanción alguna por la Administración Tributaria. The research entitled "Banking and its impact on the financial statements of the company S.A.C. TV San Martin , Tarapoto District , 2015 " is the applicative , descriptive and observational ; depending on the level of research is explanatory and exploratory ; data collection and data analysis is quantitative . After the methodological process applied instruments solvency ratios, profitability and management; and analyzed the results obtained arrive at the conclusion that the banking applications in the Enterprise SAN TV is important because thanks to its application helps contribute to revenues. The incidence of banking in the financial statements of the Company Television San Martin SAC in 2015 , from an accounting point of view - tax is high, because although there are expenses unbanked , not present them as nondeductible expenses meet the banking regulations and the Law on Income Tax , therefore exempted from any penalty for the Tax Administration

EML4-ALK-Positive Pulmonary Adenocarcinoma with an Unusual Metastatic Pattern: A Case Report

Background: Non-small cell adenocarcinoma is a frequent tumour entity with a high mortality. Insight into molecular mechanisms has led to the development of promising therapeutic options, which improve the prognosis of affected patients. There are only a few reports on molecular tumour subtypes and clinical presentation of the disease. We present the case of a patient with anaplastic lymphoma kinase (ALK)-positive adenocarcinoma of the lung with an unusual metastatic pattern. Conclusion: The metastatic pattern of non-small cell lung cancer with ALK translocation may be different from other lung cancers. An uncommon clinical presentation may sensitize treating physicians to perform corresponding molecular testing in order to offer the best treatment options

Recurrent Cutaneous Fusariosis in a Kidney Transplant Recipient – a Case Report and Review of the Literature

**Introduction:** We report an unusual case of cutaneous fusariosis in a kidney transplant recipient. *Fusarium* species are emerging fungal pathogens that pose diagnostic and therapeutic challenges. In severely immunocompromised patients, fusarial infections are associated with high mortality in the case of systemic dissemination. **Case presentation:** A 69-year-old black male with a history of renal transplantation presented with recurrent purulent nodules and painful ulcers of the left lower leg. Based on repeated skin biopsies, focally invasive skin infection with *Fusarium solani* was proven histologically and microbiologically. After four months of treatment with oral voriconazole, lesions considerably improved. When the patient died one month later from Covid-19 pneumonia under continued antifungal therapy, there was no evidence of systemic fusariosis or fusarial superinfection. **Conclusion:** Although rare, fusarial infections should be considered in immunocompromised individuals such as solid organ transplant recipients. Therefore, skin lesions in this patient population should be examined accurately. Histopathological and microbiological workups, including fungal cultures, are necessary for diagnosis and timely initiation of targeted therapy. Systemic antifungal therapy with voriconazole is the treatment of choice for focally invasive fusariosis

Epidermal Growth Factor Receptor Mutation in a Patient with Squamous Cell Carcinoma of the Lung: Who Should Be Tested

We report the case of a 64-year-old ex-smoker with metastatic poorly differentiated squamous cell carcinoma (SCC) of the lung and an epidermal growth factor receptor (EGFR) mutation in exon 21 (p.L858R) who achieved prolonged clinical benefit from treatment with an EGFR tyrosine kinase inhibitor (TKI). The initial diagnosis of SCC of the lung obtained by bronchoscopic biopsy was based on immunohistochemical staining only with positivity for cytokeratin (CK) 5/6 and p63 because morphological diagnosis was not possible. Patients with non-small cell lung cancer (NSCLC), not otherwise specified (NOS) favouring SCC are usually not tested for the presence of EGFR mutations, and therefore may not receive EGFR TKI therapy. A bronchoscopic rebiopsy showed small nests of undifferentiated tumour cells with weak immunoreactivity of some tumour cells for CK5/6, p63 and no positivity of some tumour cells for thyroid transcription factor-1. These findings suggested a mixed squamous/glandular immunophenotype that has been missed at the initial biopsy. Our clinical case illustrates the problem of tumour heterogeneity encountered in small bronchoscopic biopsies and the difficulties of evaluating the histological subtype in poorly differentiated carcinomas. Initial bronchoscopy should be performed by an experienced pulmonologist who attempts to obtain sufficient material from different areas of the tumour. In the era of targeted therapy, a remote smoking history in a patient with NOS favouring SCC should also lead to EGFR mutation testing to allow highly effective therapy to be offered to mutation-positive patients

Establishment of Primary Transgenic Human Airway Epithelial Cell Cultures to Study Respiratory Virus-Host Interactions.

Primary human airway epithelial cell (hAEC) cultures represent a universal platform to propagate respiratory viruses and characterize their host interactions in authentic target cells. To further elucidate specific interactions between human respiratory viruses and important host factors in the airway epithelium, it is important to make hAEC cultures amenable to genetic modification. However, the short and finite lifespan of primary cells in cell culture creates a bottleneck for the genetic modification of these cultures. In the current study, we show that the incorporation of the Rho-associated protein kinase (ROCK) inhibitor (Y-27632) during cell propagation extends the life span of primary human cells in vitro and thereby facilitates the incorporation of lentivirus-based expression systems. Using fluorescent reporters for fluorescence-activated cell sorting (FACS)-based sorting, we generated homogenously fluorescent hAEC cultures that differentiate normally after lentiviral transduction. As a proof-of-principle, we demonstrate that host gene expression can be modulated post-differentiation via inducible short hairpin (sh)RNA-mediated knockdown. Importantly, functional characterization of these transgenic hAEC cultures with exogenous poly (I:C), as a proxy for virus infection, demonstrates that such modifications do not influence the host innate immune response. Moreover, the propagation kinetics of both human coronavirus 229E (HCoV-229E) and human respiratory syncytial virus (hRSV) were not affected. Combined, these results validate our newly established protocol for the genetic modification of hAEC cultures, thereby unlocking a unique potential for detailed molecular characterization of virus-host interactions in human respiratory epithelium