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— We characterize the total degrees of freedom (DoF) of the full-rank MIMO X channel with arbitrary number of antennas at each node. We elucidate that the existing outer bound is tight for any antenna configuration and provide transmit and receive filter designs that attain this outer bound. The proposed achievable scheme exploits channel extensions in(More)
This article is the result of an initiative between the European Federation of Pharmaceutical Industries Associations (EFPIA) and the European Centre for the Validation of Alternative Methods (ECVAM). Its objectives are to provide the researcher in the safety evaluation laboratory with an up-to-date, easy-to-use set of data sheets to aid in the study design(More)
This paper deals with the design of nonregenerative relaying transceivers in cooperative systems where channel state information (CSI) is available at the relay station. The conventional nonregenerative approach is the amplify and forward (A&F) approach, where the signal received at the relay is simply amplified and retransmitted. In this paper, we(More)
Obesity is associated with insulin resistance, particularly when body fat has a central distribution. However, insulin resistance also frequently occurs in apparently lean individuals. It has been proposed that these lean insulin-resistant individuals have greater amounts of body fat than lean insulin-sensitive subjects. Alternatively, their body fat(More)
Providing femto-access points (FAPs) with computational capabilities will allow (either total or partial) offloading of highly demanding applications from smart-phones to the so called femto-cloud. Such offloading promises to be beneficial in terms of battery saving at the mobile terminal (MT) and/or in latency reduction in the execution of applications.(More)
Transgenic mice expressing the amyloidogenic human islet amyloid polypeptide (hIAPP) in their islet beta-cells are a model of islet amyloid formation as it occurs in type 2 diabetes. Our hIAPP transgenic mice developed islet amyloid when fed a breeder chow but not regular chow. Because the breeder chow contained increased amounts of fat, we hypothesized(More)
BACKGROUND Data on the effectiveness of sleeve gastrectomy in improving or resolving type 2 diabetes mellitus (T2DM) and the metabolic syndrome (MS) are scarce. METHODS A twelve-month prospective study on the changes in glucose homeostasis and the MS in 91 severely obese T2DM subjects undergoing laparoscopic SG (SG; n = 39) or laparoscopic Roux-en-Y(More)
OBJECTIVE To identify the rates and the predictors of long-term remission and the recurrence of type 2 diabetes mellitus (T2DM) after Roux-en-Y gastric bypass (RYGBP) or sleeve gastrectomy (SG). BACKGROUND The durability of the improvement of T2DM after bariatric surgery is not well characterized. METHODS One hundred fifty-three subjects with T2DM(More)
  • J Vidal
  • 2002
Obesity is associated with type 2 diabetes, hypertension and hyperlipidaemia. Modest weight loss has been shown to have a beneficial effect on these cardiovascular risk factors and to improve risk factor clustering. Recent lifestyle intervention studies also suggest that modest weight loss can help to prevent two of the most common conditions associated(More)
This paper deals with the problem of estimating the position of a user equipment operating in a wireless communication network. In particular, we present a new positioning method based on the angles of arrival (AOA) measured in several radio links between that user equipment and different base stations. The proposed AOA-based method leads us to a(More)