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With the development of 5G/6G communication, the requirements of portable devices for miniaturization and multifunction make low‐temperature co‐fired ceramic (LTCC) more and more important. In the area of high‐frequency high‐density passive integration, microwave dielectric ceramics with a low dielectric loss and high thermal conductivity are urgently needed to ensure the effective signals transmission and system reliability. However, most microwave dielectric ceramics with a low dielectric loss were not applicable for the LTCC technology due to the high sintering temperature. In this work, a series of MgO‐based ceramics [(100 − x) wt.% MgO–x wt.% (0.2SrF2–0.8LiF) (x = 5,7,10)] were prepared by solid‐state reaction method. The addition of sintering aid 0.2SrF2–0.8LiF (S2L8) decreased the sintering temperature below 880°C without degrading the microwave dielectric properties of ceramics. Microwave dielectric properties of ceramics, including quality factor Q × f, relative permittivity εr, and temperature coefficient of resonant frequency τf, were investigated to find the optimum composition and sintering temperature. In general, MgO–7 wt.% S2L8 ceramic sintered at 860°C exhibits outstanding properties of Q × f = 180 233 GHz, εr = 9.11, τf = −40.33 ppm/°C, and a high thermal conductivity of 24.02 W/(m K). This series of ceramics are suitable to be co‐fired with Ag electrodes. With all those great properties, this series of MgO‐based ceramics are expected to be the candidates for LTCC applications in 5G/6G technology. [ABSTRACT FROM AUTHOR]

Based on the principle of thermodynamics, this study proposes a benchmarking analysis framework for evaluating the energy efficiency of carbon capture technology. First, the boundary and elements for the benchmarking framework are defined. Then, the specific heat consumption, coefficient of CO2 capture performance, and exergy efficiency are calculated as indicators for the benchmarking analysis using a general calculation method. Second, benchmarking analysis is conducted using performance data from the literature for a temperature swing adsorption (TSA) case study. Previous research is used to classify energy consumption into three TSA boundary levels: adsorbent, adsorption chamber, and adsorption system. Third, a more complete benchmarking analysis is presented based on cyclic data from a self‐coded TSA simulation program. The influence of regeneration temperature and regeneration partial pressure on the energy‐efficiency performance is analyzed to demonstrate the viability and fairness of the proposed benchmarking analysis method. Finally, the ways to obtain standard data for the proposed benchmarking analysis via experimental methods are discussed. The proposed method can be used to guide the current design of TSA‐based carbon capture technology toward optimal energy efficiency. [ABSTRACT FROM AUTHOR]

The article offers information on the risk of B-cell non-Hodgkin lymphoma among women in Los Angeles. Topics discussed the Non-Hodgkin lymphomas (NHL) are blood cancers that originate from host immune cells; mentions risk factors include human immunodeficiency virus (HIV) infection, organ transplantation, inherited immunodeficiency syndromes or autoimmune conditions; a and discussions on Pregnancy-related factors that affect immune response.

The article discusses the study on the use indoor tanning booths and ultraviolet (UV) treatment on the risks of B-cell non-Hodgkin lymphoma (NHL) among white women. Both outdoor sun exposure and indoor tanning were found to increase the risk of skin cancers while its association with NHL development has remained equivocal. Skin sensitivity measures were also noted to be associated with the decrease of NHL risk.

The article discusses a study that examined the association between breast implants and incident T-cell lymphomas in the California Teachers Study (CTS) cohort comprised of female public school professionals who enrolled in 1995 to 1996. Results indicate a positive association between breast implants and anaplastic large cell lymphoma (ALCL) risk. Possible reasons for the study's discordance with previous studies include differences in population sampling and insufficient sample size.

Convincing epidemiologic evidence indicates that physical activity is inversely associated with breast cancer risk. Whether this association varies by the tumor protein expression status of the estrogen receptor ( ER), progesterone receptor ( PR), human epidermal growth factor receptor 2 ( HER2), or p53 is unclear. We evaluated the effects of recreational physical activity on risk of invasive breast cancer classified by the four biomarkers, fitting multivariable unconditional logistic regression models to data from 1195 case and 2012 control participants in the population-based Women's Contraceptive and Reproductive Experiences Study. Self-reported recreational physical activity at different life periods was measured as average annual metabolic equivalents of energy expenditure [ MET]-hours per week. Our biomarker-specific analyses showed that lifetime recreational physical activity was negatively associated with the risks of ER-positive ( ER+) and of HER2-negative ( HER2−) subtypes (both Ptrend ≤ 0.04), but not with other subtypes (all Ptrend > 0.10). Analyses using combinations of biomarkers indicated that risk of invasive breast cancer varied only by HER2 status. Risk of HER2-breast cancer decreased with increasing number of MET-hours of recreational physical activity in each specific life period examined, although some trend tests were only marginally statistically significant (all Ptrend ≤ 0.06). The test for homogeneity of trends ( HER2- vs. HER2+ ) reached statistical significance only when evaluating physical activity during the first 10 years after menarche ( Phomogeneity = 0.03). Our data suggest that physical activity reduces risk of invasive breast cancers that lack HER2 overexpression, increasing our understanding of the biological mechanisms by which physical activity acts. [ABSTRACT FROM AUTHOR]

We examined oral contraceptive (OC) and menopausal hormonal therapy (MHT) use in relation to risk of B-cell non-Hodgkin lymphoma (NHL). Women under age 85 years participating in the California Teachers Study with no history of hematopoietic cancer were followed from 1995 through 2007. A total of 516 of 114,131 women eligible for OC use analysis and 402 of 54,758 postmenopausal women eligible for MHT use analysis developed B-cell NHL. Multivariable adjusted and age stratified Cox proportional hazards models were fit to estimate relative risks (RRs) and 95% confidence intervals (95% CI). Ever versus never OC use was marginally associated with lower B-cell NHL risk, particularly among women first using OCs before age 25 years (RR = 0.72, 95% CI = 0.51-0.99); yet, no duration-response effect was observed. No association was observed for ever versus never MHT use among postmenopausal women (RR = 1.05, 95% CI = 0.83-1.33) overall or by formulation (estrogen alone, ET, or estrogen plus progestin, EPT). Among women with no MHT use, having bilateral oophorectomy plus hysterectomy was associated with greater B-cell NHL risk than having natural menopause (RR = 3.15, 95% CI = 1.62-6.13). Bilateral oophorectomy plus hysterectomy was not associated with risk among women who used ET or EPT. These results indicate that exogenous hormone use does not strongly influence B-cell NHL risk. [ABSTRACT FROM AUTHOR]