583 research outputs found
Hubungan Tingkat Pengetahuan dan Praktik Perawat Mengenai Keselamatan Pasien (Patient Safety) di Instalasi Gawat Darurat RS X Semarang
In Indonesia, reports regarding patient safety has not been noticed and concerned decently, but the arraignments toward malpractice are increasing. Nurses, are the spearhead of the health care. Emergency room is one of healthcare area that needs fast and right treatment, so that the nurses should have good knowledge and practice regarding patient safety.The purpose of this study was to determine the correlation between nurses knowledge and nurses practice or the implementation regarding patient safety at emergency room of X Hospital Semarang. This study is belong to an explanatory research with cross sectional approach. The population that used was total sampling, with 35 nurses which are working at emergency room of X Hospital Semarang. Data was collected directly used questionnaire that is based on Joint Commission International (JCI).Chi Square test was used to analyze the data. The results of statistical test showed that there is a correlation between nurses knowledge regarding patient safety with the implementation of patient safety at emergency room of X Hospital Semarang with p value=0,000. Socialization and review concerning patient safety should be given periodically by nurse supervisor
Light depolarization effects during the Fréedericksz transition in nematic liquid crystals
This work is aimed to the photopolarimetric characterization of the disorder evolution occurring in homeotropically aligned nematic liquid crystal films during the electrically induced Freedericksz transition. The molecular director dynamics and the transversal reorientation modes are investigated by the analysis of the depolarization of the light beam emerging from the sample. Our measurements reveal unexpected depolarization effects at the transition, which we interpret in terms of director field unhomogeneity and defects creation. (C) 2007 Optical Society of America
RF and THz Identification Using a New Generation of Chipless RFID Tags
This article presents two chipless RFID approaches where data are reading using electromagnetic waves and where the medium encoding the data is completely passive. The former approach rests on the use of RF waves (more precisely the ultra-wide band UWB). The tags developed for this application are comparable with very specific, planar, conductive, radar targets where the relation between the tag geometry and its electromagnetic signature is perfectly known and is used to encode the data. The principle of operation as well as the realization process of the RF tags presented in this paper is similar to those already reported in the literature. However, contrary to the majority of chipless RFID tags, these labels do not present an antenna function dissociated from the circuit part where the data are stored. Here, functions such as the receiver, the treatment and the emitter of the signal are closely dependent. The data storage capacity of the RF chipless tags is proportional to of the used frequency bandwidth. As radio spectrum is regulated, the number of possible encoding bits is thus strongly limited with this technology. This is the reason why we introduce a new family of tags radically different from the preceding one, where data is encoded in volume thanks to a multilayer structure operating in the THz domain. These two approaches although different are complementary and allow to increase significantly the data storage capacity of the chipless tags. Simulation and experimental results are reported in this paper for both configurations. We demonstrate a coding capacity of 3.3 bit/cm2 for RFID chipless tags and a potential 10 bits coding capacity in the THz domain
Does Oxidative Stress Play a Role in the Pathogenesis of Urticarias
Radical oxygen species (ROS) modulate various cellular processes and are involved in physiologic and pathologic conditions, including inflammation. There is growing evidence that supports the existence of an abnormal redox status in some chronic inflammatory skin diseases, including contact dermatitis, atopic dermatitis and psoriasis. This review introduces some general aspects on the role of oxidative stress in cutaneous inflammation, with special emphasis on urticarias, summarizing recent novel findings derived from the study of physical urticarias and chronic idiopathic urticaria
Consensus on the use of the fixed combination calcipotriol/betamethasone dipropionate in the treatment of plaque psoriasis.
Calcipotriol, a vitamin D analogue, and betamethasone dipropionate, a high potency corticosteroid, are complementary agents for the topical treatment of psoriasis vulgaris. Robust evidence on the efficacy and safety of their fixed combination has been provided by randomized, double-blind, controlled clinical trials involving more than 7000 patients with the ointment formulation in psoriasis of the body and more than 4000 patients with the gel formulation in scalp psoriasis. These trials have shown that the fixed combination ointment is more effective and better tolerated, not only than placebo, but also than calcipotriol and tacalcitol monotherapies. In addition, it has proved, in most instances, to be more effective than betamethasone and at least as well tolerated. The same applies to the gel for scalp and body psoriasis. Safety studies have excluded that repeated courses of treatment with the fixed combination for up to one year produce systemic effects. Studies have also shown that the fixed combination treatment improves quality of life to a significantly greater extent than calcipotriol, with the once daily regimen most appreciated by patients, in both active disease and recurrency. Because of the extensive evidence, American and European guidelines recommend the calcipotriol/betamethasone dipropionate fixed combination a
Family history of cancer, body weight, and p53 nuclear overexpression in Duke's C colorectal cancer.
To examine the hypothesis that colorectal carcinomas with and without TP53 mutations may be characterised by aetiological heterogeneity, we analysed a group of 107 patients with primary Dukes' C colorectal cancer seen at the Memorial Sloan-Kettering Cancer Center (MSKCC) from 1986 to 1990. We assessed p53 overexpression using the monoclonal antibody PAb 1801, and identified 42 (39%) patients displaying p53-positive phenotype, defined as > or = 25% of positive cells. Patients with two or more first-degree relatives with cancer had an odds ratio (OR) of 2.9 (95% CI 1.0-8.3) for p53 overexpression in comparison with those without a family history of cancer (trend test, P = 0.11). A possible association between body weight and p53 overexpression was observed. The ORs were 1.9 for the second quartile, 1.9 for the third quartile and 3.4 for the highest quartile in comparison with the lowest quartile (trend test, P = 0.06). No association between occupational physical activity, smoking, drinking, parity and p53 overexpression was identified. The results suggest that p53 overexpression may be related to genetic predisposition to colorectal cancer, and p53-positive and p53-negative colorectal cancers may be controlled by different aetiological pathways
MEK inhibition leads to BRCA2 downregulation and sensitization to DNA damaging agents in pancreas and ovarian cancer models
Targeting the DNA damage response (DDR) in tumors with defective DNA repair
is a clinically successful strategy. The RAS/RAF/MEK/ERK signalling pathway is
frequently deregulated in human cancers. In this study, we explored the effects of
MEK inhibition on the homologous recombination pathway and explored the potential
for combination therapy of MEK inhibitors with DDR inhibitors and a hypoxia-activated
prodrug.
We studied effects of combining pimasertib, a selective allosteric inhibitor of
MEK1/2, with olaparib, a small molecule inhibitor of poly (adenosine diphosphate
[ADP]-ribose) polymerases (PARP), and with the hypoxia-activated prodrug
evofosfamide in ovarian and pancreatic cancer cell lines. Apoptosis was assessed
by Caspase 3/7 assay and protein expression was detected by immunoblotting.
DNA damage response was monitored with ÎłH2AX and RAD51 immunofluorescence
staining. In vivo antitumor activity of pimasertib with evofosfamide were assessed
in pancreatic cancer xenografts.
We found that BRCA2 protein expression was downregulated following pimasertib
treatment under hypoxic conditions. This translated into reduced homologous
recombination repair demonstrated by levels of RAD51 foci. MEK inhibition was
sufficient to induce formation of ÎłH2AX foci, suggesting that inhibition of this pathway
would impair DNA repair. When combined with olaparib or evofosfamide, pimasertib
treatment enhanced DNA damage and increased apoptosis. The combination of
pimasertib with evofosfamide demonstrated increased anti-tumor activity in BRCA
wild-type Mia-PaCa-2 xenograft model, but not in the BRCA mutated BxPC3 model.
Our data suggest that targeted MEK inhibition leads to impaired homologous
recombination DNA damage repair and increased PARP inhibition sensitivity in BRCA-
2 proficient cancers
Health-related quality of life in psoriasis: an analysis of Psocare project patients
Psoriasis is a common, chronic, immune-mediated skin disorder that may be complicated by psoriatic arthritis in
up to one-third of patients. Psoriasis treatments are increasingly
effective, yet more expensive, thus requiring rational decision-making on interventional priorities. The ability to perform cost-utility analyses is hindered by the lack of algorithms
that allow the inference of utility measures, like QALY, from specific dermatological health-related qualityof-
life (HR-QoL) measures (e.g. Dermatology Life Quality
Index [DLQI]). This study aimed to assess whether psoriasisrelated
HR-QoL data (DLQI) could be used to obtain utility measures for use in economic analyses
Health-related quality of life in psoriasis: an analysis of Psocare project patients
Psoriasis is a common, chronic, immune-mediated skin disorder that may be complicated by psoriatic arthritis in
up to one-third of patients. Psoriasis treatments are increasingly
effective, yet more expensive, thus requiring rational decision-making on interventional priorities. The ability to perform cost-utility analyses is hindered by the lack of algorithms
that allow the inference of utility measures, like QALY, from specific dermatological health-related qualityof-
life (HR-QoL) measures (e.g. Dermatology Life Quality
Index [DLQI]). This study aimed to assess whether psoriasisrelated
HR-QoL data (DLQI) could be used to obtain utility measures for use in economic analyses
An observational study to assess Italian obstetrics providers' knowledge about preventive practices and diagnosis of congenital cytomegalovirus
Congenital cytomegalovirus (cCMV) infection can be easily prevented by hygienic measures. Up to date the majority of the studies in literature highlighted a reduction in cCMV antenatal counseling and its prevention. Our purpose was to evaluate obstetrics providers' knowledge about cCMV infection, management and the behavioral practices to avoid it. This is a cross-sectional survey carried out in Umberto I Hospital, "Sapienza"University of Rome between November 2019 and January 2020. We recruited 148 specialists and residents in Obstetrics and Gynecology through online anonymous multiple-choice 13-questions, 10 min-survey comparing responses between the two groups. A total of 94.6% of all participants said they always prescribe cytomegalovirus (CMV) serum screening: 73.6% of them regularly counsel about preventive practices, with specialists recording higher percentages (85.4 vs. 65.1%, p<0.005). We identified a good knowledge about the diagnostic pathway, but only 58.1% of our population knows the correct time of late amniocentesis. 12.2% of providers do not consider magnetic resonance (MRI) as a complementary exam. Prevention of maternal seroconversion is crucial: even if our data show an acceptable knowledge about antenatal counseling, we encourage clinicians to firmly inform and educate women about behavioral measures
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