We have estimated the dispersion of the inferred relative frequencies of Type-Ia and TypeII supernovae (NIa/NII) in our Galaxy by fitting the numerical results of supernova nucleosynthesis to the solar-system abundances. The ratio NIa/NII is estimated to be 0.056–0.14, which is consistent with the observation, if the model of Woosley and Weaver (1995, WW95) is adopted for Type-II supernovae (SN...

The phototriggered cleavage of chemical bonds has found numerous applications in biology, particularly in the field of gene sequencing through photoinduced DNA strand scission. However, only a small number of modified nucleosides that are able to cleave DNA at selected positions have been reported in the literature. Herein, we show that a new photoactivable deoxyadenosine analogue, 3-nitro-3-de...

STRESZCZENIE Wstęp. Skład ma sy cia ła zmie nia się w okre sie roz wo jo wym i jest zna czą co ró żny u dzie ci ze sko lio zą idio pa tycz ną (SI). Ce lem ba da nia by ła oce na stop nia odży wie nia pa cjen tów z SI w opar ciu o stan dar do we po mia ry an tro po me trycz ne oraz me to dę bio im pe dan cji (BIA). Ma te riał i me to dy. Gru pę ba da ną sta no wi ło 59 cho rych z SI (45 dziew cz...

conclusion the dwmri is a useful technique for evaluating activity of fistulas with abscess. perianal fistula visibility is greater with combined t2wi and dwmri than t2wi alone. patients and methods fifty-three patients with 56 perianal fistulas were included in the current retrospective study. the t2-weighted imaging (t2wi) and dwmri were performed and apparent diffusion coefficient (adc) valu...

Background. To describe the standard autofluorescence (FAF), the near infrared autofluorescence (NIA) and optical coherence tomography (OCT) patterns in central serous chorioretinopathy, correlating them with fluorescein angiography. Methods. Cross-sectional observational study, in which patients with at least seven months of CSC underwent ophthalmologic examination, fundus photography, FAF, NI...

The 40(th) anniversary of Cell coincides with that of the National Institute on Aging (NIA). Indeed, Cell papers on NIA-funded research helped move the field into a genetic and molecular era. Now is a fair time to ask whether we are far down a trail leading to a deep understanding of aging or whether we are still tiptoeing cautiously at the trailhead.

Two cadmium(II) coordination polymers, with thiocyanate and pyridine-based ligands e.g., 3-acetamidopyridine (3-Acpy) niazid (nicotinic acid hydrazide, nia), namely one-dimensional {[Cd(SCN)2(3-Acpy)]}n (1) two-dimensional {[Cd(SCN)2(nia)]}n (2), are prepared in the mixture of water ethanol. The adjacent ions 1 bridged by two N,S-thiocyanate an N,O-bridging 3-Acpy molecule, forming infinite pol...

Funding: This work was supported by the National Institute on Aging (NIA), grant U01 AG15477. NIA collaborators participated in the design and conduct of the study and in the interpretation and review of the study results. Celecoxib and the matching placebo were provided by Pfizer, and naproxen sodium and the matching placebo were provided by Bayer Healthcare; Pfizer and Bayer did not participa...

We report two new records of occurrence Six-banded Armadillo, Euphractus sexcinctus (Linnaeus, 1758), in the state Rondônia, Brazil, based on roadkills. These extend geographic distribution this species by 70 km. The are from region with a high deforestation rate called “Arc Deforestation”, which includes Rondônia. was recorded an area loss vegetation cov...