OBJECTIVE To investigate the internal validity of a food-frequency questionnaire (FFQ) developed for a case-control study of prostate cancer in southeast China. DESIGN A comprehensive questionnaire comprising a quantitative FFQ and a short food habit questionnaire (SFHQ) was developed and modified from previous cancer and nutritional studies. The Goldberg formula (ratio of energy intake (EI) ...

A wireless sensor network (WSN) consists of a huge number of sensor nodes that are inadequate in energy, storage and processing power. One of the major tasks of the sensor nodes is the collection of data and forwarding the gathered data to the Base Station (BS). Hence, the network lifetime becomes the major criteria for effective design of the data gathering schemes in WSN. In this paper, an En...

The present work describes a new HPLC method and a new spectrophotometric method for the simultaneous determination of ethinyl estradiol (EE) and levonorgestrel (LNG) in their binary combination. In LC method, Nucleosil C8 column with a mobile phase composed of acetonitrile-water (90:10, v/v) with UV detection at 225 nm were used for the analysis of ethinyl estradiol-levonorgestrel combination....

Energy efficiency (EE) plays a significant role in the progress towards Fifth-generation (5G) wireless communication networks. Massive multiple-input multiple-output (MIMO) is viable concept for 5G networks due to greater SE and EE. In this work, Channel Selection (CS) scheme proposed by selecting optimal channel using Chicken Swarm Optimization (CSO) algorithm. A massive MIMO model implemented...

It is shown that the experimental data of ψ and ψ are consistent with a −90◦ phase between the strong and eletromagnetic decay amplitudes. The ee → ρπ measured at ψ is also consistent with the branching ratio predicted by Rosner’s scenario on ρπ puzzle in charmonium physics. This scenario leads to a possible large charmless branching ratio in ψ decays. work in collaboration with C. Z. Yuan and ...

In the standard effective V - A theory of low-energy weak interactions (i.e. in Standard Model (SM)) we analyze structure correlation coefficients S(E_e) and U(E_e), where E_e is electron energy. These were introduced to electron-energy angular distribution neutron beta decay by Ebel Feldman ( Nucl. Phys. 4, 213 (1957)) addition set proposed Jackson et al. (Phys. Rev. 106, 517 (1957)). The $S(E...

BACKGROUND & AIMS Central adiposity has been implicated as a risk factor for Barrett's esophagus (BE) and esophageal adenocarcinoma (EAC), possibly promoting the progression from inflammation to metaplasia and neoplasia. We performed a systematic review and meta-analysis of studies to evaluate the association between central adiposity and erosive esophagitis (EE), BE, and EAC, specifically expl...

BACKGROUND Combined oral contraceptives (COCs) have not been shown to have major effects on lipid and carbohydrate metabolism in normal-weight women. However, we have limited information about the effects on women at high risk for cardiovascular disease and diabetes due to being overweight and obese. OBJECTIVES To evaluate the effects of second and third generation contraceptive pills on lipi...

this article emphasizes the findings of a survey conducted to find out the views of students on the environmental education (ee) in iranian secondary school (ss) curriculum. a total of six hundred students from forty secondary schools, randomly selected ss from five zones in tehran city responded to the questionnaire. two research questions were asked while two hypotheses were tested in this st...

Previous studies indicate that individuals exposed to stress in juvenility are more prone to suffer from stress-related psychopathologies in adulthood. Evidence suggests that exposure to enriched environment (EE) conditions alleviates juvenile stress (JVS) effects. Exposure to stress has been found to affect immune responses to challenges, but whether JVS has long-term effects on inflammatory p...