The Ni/SiO2 system is one of the most interesting to produce COx-free H2 and valuable carbon nanofibers (CNFs) by catalytic decomposition CH4. SiO2 effective support while Ni catalyst displays long life high activity. We studied chemical vapor deposition (CCVD) process CH4 within Ni/glass at relatively low temperature (600 °C) during times (3 h), varying amount (2.3–17.8% Ni(%)) source (100:200...

The current BacT/Alert standard aerobic (VA) blood culture bottle was redesigned and designated a nonvented aerobic (NVA) culture bottle; this bottle does not require venting. A total of 3,873 sets of blood samples for culture were obtained from adult patients with suspected bacteremia or fungemia. The NVA bottle showed performance equivalent to that of the VA bottle for recovery and speed of d...

This article aims to present some inscribed small finds from former excavations carried out in the years 2006-2011 at Elaiussa Sebaste Cilicia, under auspices of University Rome, Sapienza. An base a glass bottle, lead seal, two weights, bronze ring and an potsherd will be analyzed, so as give new significance these items that were until now neglected. All objects pertain Late Roman or Early Byz...

In this study, the effects of heat-treatment temperature and hot-end coating (HEC) by spray on mechanical properties reliability lightweight glass bottles were investigated. When chemical strengthening occurred at Tg, hardness impact strength increased 163% 198%, respectively. All specimens exhibited improved with strengthening, regardless HEC. The effect was relatively large in absence However...

BACKGROUND AND AIM: Sucking of some types of a pacifier may be a risk factor for mal-development of orofacial structures and malocclusion. This study assessed the prevalence of using of different types of pacifier and bottle nipple among 1-24 months old children in Kerman, Iran.METHODS: In this cross-sectional study, a total of 300 mothers interviewed at 20 specialized private pediatric offices...

INTRODUCTION This article presents a 6-month case report and an in vitro evaluation of the performance of the new self-etching glass-ceramic monobond etch and prime (MEP) when applied in a lithium disilicate (LD). The MEP contains in the same bottle, along with acid conditioner and silanes. This simplifies the bonding procedures by reducing not only the number of steps, but also the working tim...

CHE~IICAL METHOD. The estimation of cafeine. Older methods for the determination of car7eine in biological material involve extraction into chloroform, followed by assay of the drug by its nitrogen content (Kunz, 1935) or by a color-producing murexide reaction (Tanaka and Ohkubo, 1937). These methods are insensitive and inaccurate. Recently, Ishler et al. (1948) described a sensitive method, us...

The behaviour of bottle cells in normal and microsurgically altered gastrulae and in cultured explants of Xenopus laevis was analysed, using time-lapse micrography, scanning electron microscopy (SEM) and cell tracing with fluorescein dextran amine (FDA). The results shed new light on the function of bottle cells. Bottle cells forming in vivo show a predominantly animal-vegetal apical contractio...

A study was conducted in a glass bottle manufacturing plant in Pondicherry, India, to assess the magnitude and identify the risk factors of work-related injuries between January and December 1998. Three hundred and seventy-seven injuries were reported among 341 permanent workers followed up for one year (incidence=1,105.5/1,000 workers/yr). A higher load of injuries was noted in the first half ...

Contamination of dropper bottles with tear fluid in an ophthalmic outpatient clinic The isolation of the human immunodeficiency virus (HIV) from the tears of a patient with the acquired immune deficiency syndrome (AIDS)' has aroused concern about the risks of transmission of the virus during various ophthalmic procedures.2 Current recommendations permit the use of multiple application dropper b...