We discuss two new observational techniques that use observations of the Cosmic Microwave Background (CMB) to place constraints upon the mass, distance, and size distribution of small objects in the Kuiper Belt and inner Oort Cloud, collectively known as Trans-Neptunian Objects (TNOs). The first new technique considers the spectral distortion of the isotropic, or monopole, CMB by TNOs that have...

We study the CMB anisotropy induced by the non-linear perturbations in the massive neutrino density associated to the non-linear gravitational clustering process. By using N-body simulations, we compute the imprint left by the grav-itational clustering on the CMB anisotropy power spectrum for all non-linear scales taking into account the time evolution of all non-linear density perturbations , ...

Superhorizon perturbations induce large-scale temperature anisotropies in the cosmic microwave background (CMB) via the Grishchuk-Zel’dovich effect. We analyze the CMB temperature anisotropies generated by a single-mode adiabatic superhorizon perturbation. We show that an adiabatic superhorizon perturbation in a CDM universe does not generate a CMB temperature dipole, and we derive constraints ...

We consider the effect on Big Bang Nucleosynthesis (BBN) of new measurements $d(p,\gamma){}^3$He cross section by LUNA Collaboration. These have an important primordial abundance D/H which is also sensitive to baryon density at time BBN. re-evaluated thermal rate for this reaction, using a world average data, we describe with model-independent polynomials; our results are in good agreement simi...

Scaling properties of the cosmic microwave background (CMB) radiation are studied using satellite (COBE-DMR maps), balloonborne and ground-based (combined QMASK map) data. Quantitative consistency is found between the multiscaling properties of the COBE-DMR and QMASK CMB maps. Surprisingly, it is found that the observed CMB temperature multiscaling resembles quantitatively the multiscaling prop...

The position of the degree scale feature in the CMB spectrum is determined within the framework of the fractal universe with a power index of 2. The presence of any feature in the cosmic microwave background (CMB) anisotropy spectrum whose physical scale is known provides us with the ability to perform the angular diameter distance test [1]. Any feature progects as an anisotropy onto an angular...

BACKGROUND AND PURPOSE To investigate the relationship between chronic kidney disease (CKD) and MRI-defined cerebral microbleeds (CMB), a harbinger of future intracerebral hemorrhage (ICH), among patients with a recent history of primary ICH. METHODS Using data from a predominantly black cohort of patients with a recent ICH-enrolled in an observational study between September 2007 and June 20...

BACKGROUND AND PURPOSE The emergence of cerebral microbleeds (CMB) as common MR imaging findings raises the question of how MR imaging parameters influence CMB detection. To evaluate the effects of modified gradient recalled-echo (GRE) MR imaging methods, we performed an analysis of sequence, section thickness, and field strength on CMB imaging properties and detection in subjects with cerebral...

BACKGROUND AND PURPOSE Cerebral microbleeds (CMB) and white matter lesions (WML) are cerebral small vessel diseases. Hypertension is considered the most important risk factor. Its mechanism is not yet clarified. Our study assessed the association of blood pressure variability (BPV) with CMB and WML progression. METHODS Patients with a history of ischemic stroke within 1 to 6 months were conse...

BACKGROUND AND PURPOSE Cerebral microbleeds (CMB) are common in stroke survivors and the community-dwelling elderly. The clinical significance of CMB in the development of depression after a stroke is unknown. This study examined the association between poststroke depression (PSD) and CMB. METHODS A cohort of 235 patients with acute lacunar stroke admitted to the stroke unit of a university-a...