This Application Note demonstrates the capability of the Agilent 1290 Infi nity 2D-LC Solution for heart-cutting applications. As an example, a minor impurity is resolved by heart cutting from a co-eluting main compound. The minor impurity, which is isolated on a second-dimension column after heart cutting, is verifi ed by additional spiking and statistical evaluation of the separation performa...

introduction: video-assisted clinical instruction (vacid) has been found to be a beneficial teaching tool for various fields in dentistry. the aim of this interventional study was to compare the efficacy of live conventional demonstration (cd), video teaching, and vacid (video with explanation) methods in teaching of root canal treatment to undergraduate dental students. methods and materials: ...

BACKGROUND It is estimated that there is at least a 2-fold rise in the incidence of monozygotic twinning after assisted reproductive technology compared with natural conception. This can result in adverse pregnancy outcomes. METHODS We searched MEDLINE, EMBASE and SCISEARCH for studies that estimated the risk of monozygotic twinning and its association with any particular assisted reproductiv...

The information and views set out in this publication are those of the author(s) and do not necessarily reflect the official opinion of the Commission. The Commission does not guarantee the accuracy of the data included in this study. Neither the Commission nor any person acting on the Commission's behalf may be held responsible for the use which may be made of the information contained therein.

In vitro fertilization, popularly referred to as IVF, has captured the attention of the public since its sensational introduction in 1978. Today assisted reproductive technology is available throughout most of the civilized world, and the practice is largely different from that used during the early days. Refinements in laboratory technology and clinical practice have allowed IVF to evolve into...

During Assisted Reproductive Technology (ART) procedures, the transfer of a single embryo dramatically reduces the rate of multiple pregnancy. Proper information, therefore, should be delivered to patients before embryo transfer. In many countries, regulations limit, according to age of the patient, the number of embryos to be transferred. Selective fetal reduction should not be considered as a...

Teams practising medically assisted reproduction techniques try to avoid viruses as much as possible. Attitudes towards chronic carriers of viruses are rapidly changing, especially for human immunodeficiency virus (HIV) patients. We focus our attention on the legitimacy of systematic screening before assisted reproductive techniques and the need for specialized approaches including an adapted l...