1,059 research outputs found
Surface Modification of CdSe and CdS Quantum Dots-Experimental and Density Function Theory Investigation
The Evaluation And Using Intention For Digital Teaching Materials Of Penghu Basalt
The Bureau of Culture of Penghu County produced the Penghu Basalt Digital Teaching Materials, which are supplementary teaching materials for local curriculums in elementary and middle schools in Penghu County. But just what are the teachers’ and students’ opinions of the said teaching materials? Are they willing to use them? Are they suitable? These questions are, indeed, worth further research. The questionnaire survey was conducted to gather the opinions of 142 teachers and 151 students of elementary and middle schools in Penghu County. In addition, using the quasi-experimental and experimental teaching methods, after comparing the pre-test and post-test results to the control group, the learning effectiveness was determined. The results indicate that teachers and students have the highest evaluation for the interface design aspect of this teaching material. The teachers’ evaluation for the teaching materials is significantly higher than the students’. Furthermore, the teaching materials are evaluated highly in terms of attracting attention, generating interest and willingness to use, indicating that the digital teaching materials have potential for promotion in Penghu. After the experimental teaching, only the vocational high school students’ scores before and after the experiment showed significantly improvement, while the scores of the students in the other levels of schools did not.  
Metastatic carcinoma of the urinary bladder in a 67-year-old female with underlying triple primary cancers
AbstractDue to progressive ageing of our population and increasing cancer incidence rates, more and more patients are presenting with multiple primary cancers. Here we describe a case of metastatic carcinoma involving the urinary bladder with underlying triple primary adenocarcinoma in a female adult.A 67-year-old Taiwanese female presented to our institution in November 1997 with gastric signet ring cell carcinoma, pT2N0M0, status post subtotal gastrectomy. In February 2003 she was diagnosed with left breast invasive lobular carcinoma status post modified radical mastectomy, pT2N2M0. Further examination in January 2005 revealed proximal transverse colon cancer, Dukes' C2, with status post right hemicolectomy. She achieved disease-free status from all three malignancies after surgical resection and adjuvant chemotherapy for breast and colon cancers sequentially. In November 2011, she complained about sudden onset of gross hematuria for several days. Diagnostic cystoscopy showed a mass lesion over her urinary bladder. Cystoscope-assisted biopsy showed metastatic poorly differentiated adenocarcinoma with signet ring appearance. Herein we have discussed the pathologic role in the diagnosis of metastatic tumor involving a patient with multiple primary cancers. We also explored the epidemiologic risk and potential causal mechanism of patients with multiple primary cancers
Construct validity of the Depression and Somatic Symptoms Scale: evaluation by Mokken scale analysis
A Simple Model for Cavity Enhanced Slow Lights in Vertical Cavity Surface Emission Lasers
We develop a simple model for the slow lights in Vertical Cavity Surface
Emission Lasers (VCSELs), with the combination of cavity and population
pulsation effects. The dependences of probe signal power, injection bias
current and wavelength detuning for the group delays are demonstrated
numerically and experimentally. Up to 65 ps group delays and up to 10 GHz
modulation frequency can be achieved in the room temperature at the wavelength
of 1.3 m. The most significant feature of our VCSEL device is that the
length of active region is only several m long. Based on the experimental
parameters of quantum dot VCSEL structures, we show that the resonance effect
of laser cavity plays a significant role to enhance the group delays
Weakness of shim¡¦s New ID-based tripartite multiple-key agreement protocol
In this article we show that Shim¡¦s new ID-based tripartite multiple-key agreement protocol still suffers from the impersonation attack, a malicious user can launch an impersonation attack on their protocol
Chinese Herbal Medicine Therapy and the Risk of Mortality for Chronic Hepatitis B Patients with Concurrent Liver Cirrhosis: a Nationwide Population-Based Cohort Study
Chronic hepatitis B (CHB) is increasingly recognized as a public health problem in Taiwan. After affected patients are diagnosed with contaminant liver cirrhosis (LC), adverse clinical outcomes, especially death, are common. This study aimed to investigate the effect of Chinese herbal medicine (CHM), an essential branch of Traditional Chinese medicine (TCM), on the mortality risk among CHB patients with contaminant LC. This longitudinal cohort study used the Taiwanese National Health Insurance Research Database to identify 1522 patients 20–70 years of age with newly diagnosed CHB with LC during 1998–2007. Among them, 508 (33.37%) had received CHM products after the onset of CHB (CHM users), and the remaining 1014 patients (66.63%) were designated as a control group (non-CHM users). All enrollees were followed until the end of 2012 to determine deaths during the study period. We applied the Cox proportional hazards regression model to compute the hazard ratio for the association of CHM use and the subsequent risk of death. During the follow-up period, 156 CHM users and 493 non-CHM users died. After controlling for potential confounders, CHM users were found to have a significantly reduced risk of death compared with non-CHM users by 56%, and the effect was predominantly observed among those treated with CHM for \u3e 180 days. CHM therapy lowered the risk of death among CHB patients with contaminant LC, which supported CHM might provide further treatment options for those with chronic liver diseases
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