Different optical methods for tumour detection have been studied. Interference between photon density waves has been examined with the aim of investigating the potential of this technique for optical transillumination diagnostics. Simulations and experiments have been performed in the time domain on realistic tissue phantoms containing bodies with differing optical properties. The recorded data we

Nuclear quadrupole resonance (NQR) offers an unequivocal method of detecting and identifying land mines. Unfortunately, the practical use of NQR is restricted by the low signal to noise ratio (SNR), and means to improve the SNR are vital to enable a rapid, reliable and convenient system. In this paper, we develop a non-linear least squares detector exploiting the temperature dependency of the NQR

Landscape change in Europe has caused the decline of many grassland species. Tephroseris integrifolia (Asteraceae) is one species which has declined rapidly in Sweden since the 19th century. A census of extant populations from 1980 to 2009 revealed a dramatic decrease in population sizes during the early 1990s, despite far-reaching conservation measures. Knowledge of causes of species decline is n

We present the characterization results of a new high resolution negative electron beam resist mr-L 6000.1 XP. The resist can also be used as imprintable polymer in nanoimprint lithography with sub-100 nm resolution. The feature size achieved after e-beam exposure was about 50 nm with sensitivity of 2-4 μC/cm2. Studies of the resist properties as a function of chemical composition and development

New knowledge in science and engineering relies increasingly on results produced by scientific software. Therefore, knowing how scientists develop and use software in their research is critical to assessing the necessity for improving current development practices and to making decisions about the future allocation of resources. To that end, this paper presents the results of a survey conducted on

Popular Abstract in Swedish Avhandlingens huvudsakliga syfte är att öka kunskapen om kvinnors och mäns psykiska hälsa och välbefinnande i samband med att de väntar eller just har fått ett barn, och detta utifrån aspekter som är relevanta för mödra- och barnhälsovårdens insatser: Kunskap - erhåller kvin-nor och män för dem adekvata kunskaper när de står inför att bli föräldrar för första gången? StThe central issue is to increase knowledge of women's and men's mental wellbeing when their child is about to be born, as seen from four aspects relevant to maternity and child health care centres. Major psychological theories are the attachment theory and the affect theory, health psychology with theories on nervous tension, vulnerability, coping and individual resources, clinical psychology to u

An all digital phase-locked loop (ADPLL) has been implemented in a 90-nm CMOS process. It uses a phase frequency detector (PFD) connected to two time-to-digital converters (TDC). To save power the TDCs use uneven delay time in the delay line cells. An automatic tuning bank controller selects active bank of the digitally controlled oscillator (DCO), which features three separate tuning banks. The P

Pausanias’ Hellados Periegesis has proven to be difficult to group with other ancient works, whether preserved or not. In light of its highly varied subject matter, it is tempting to sort Pausanias together with other authors of miscellanies from the second century AD, like Aelian and Athenaeus. Like the Deipnosophistae and the Varia historia among other works, the Periegesis is a collection of fa