Filtyp
The period of 1880-1910 was a time of fast modernization and industrialization in Transylvania. Fertility decline only started in the South, while in the North there was a marked fertility increase. This paper attempts to explain these differences, using a cross-sectional analysis of fertility for 4112 Transylvanian settlements. The factors affecting fertility are modeled using the Eastrelin-Crimm
We demonstrate proof of principle of an efficient and simple method combining sample preparation and stretching of DNA in a single device that can be used as basis for an integrated portable system for optical DNA mapping. An important bottleneck for DNA mapping, as well as for other methods, is the isolation of long DNA molecules from a background of contaminants such as shorter DNA fragments, dy
We present the first one-step acoustic separation of high quality plasma and mononuclear cells (MNCs) from undiluted human whole blood. This enables centrifugation-free integration in analytical instrumentation.
We have developed an assay, based on nanofluidic channels and fluorescence microscopy, for optical mapping of DNA based on competitive binding between two molecules - one fluorescent and one sequence selective. From the experimental data we can extract binding constants for the two competing DNA binders, which may be subsequently used to calculate a theoretical reference map of any DNA with known
In this work we present an integrated system for whole chromosome analysis of single bacterium. Using whole genome barcoding techniques, which offer direct and rapid microscopic visualization of the entire genome in one field-of-view, we aim to rapidly identify individual bacterium. We are developing our device to achieve the crucial, and difficult process of isolating a bacterium, removing the DN
Microsoft Word - Gustavsson.doc Abstract—Blekinge Tekniska Högskola, BTH, har öppnat ett övningslaboratorium för ellära och elektronik för fjärrstyrning och håller på att öppna ett fjärrstyrbart signalbehandlingslaboratorium för vibrationsanalys. Ett unikt användargränssnitt gör det möjligt att från valfri plats styra och manövrera experimentutrustningen på samma sätt som i laboratorielokalerna. A
https://www.lth.se/fileadmin/lth/genombrottet/konferens2006/I_Gustavsson_mfl.pdf - 2026-06-02
INTRODUCTION: The FEV1 quotient (FEV1Q), calculated as the index between FEV1 and a theoretical lower survivable FEV1 threshold of 0.4L for females and 0.5L for males, has been investigated as a novel method of interpreting results from lung function testing. The applicability of the FEV1Q in populations with chronic respiratory failure has not been studied, and the continuous association between
Title: The future is looking bright - Studies of burnout among musicians and music teachers. Since late 1970's, the burn-out-syndrome has been researched in several ways, especially among people working in care-oriented employments. The object with this study is to find out the biggest issues about why musicians and music teachers burn themselves out. This is based on musicians and music teach
Structural Health Monitoring (SHM) can provide valuable information for maintenance-related activities and post-disaster emergency management. However, as with any technological system, SHM systems can be susceptible to errors due to malfunctioning. Therefore, it is essential to assess the potential for malfunctions and the associated costs of maintenance and repair when evaluating the long-term b
4MOST,1 the 4m Multi-Object spectrographic Survey Telescope, is an upcoming optical, fiber-fed, MOS facility for the VISTA telescope at ESO's Cero Paranal Observatory (Chile). The preliminary design of 4MOST features 2,400 fibers split into a low-resolution (1,600 fibers, 390-900 nm, R > 5; 000) and a high-resolution channel (800 fibers, three arms, ∼20-25 nm coverage each, R > 18; 000) with an Ec
The identification of helium nuclei at LHCb is achieved using a method based on measurements of ionisation losses in the silicon sensors and timing measurements in the Outer Tracker drift tubes. The background from photon conversions is reduced using the RICH detectors and an isolation requirement. The method is developed using pp collision data at √s = 13 TeV recorded by the LHCb experiment in th
This work presents a novel concept for acoustofluidic cell manipulation: thin vibrating channel walls. Improved etch recipes enable us to produce thin walls between two microfluidic channels, fabricated in silicon or via PDMS casting, that can be used for challenging microbiological applications. We demonstrate the medium exchange for bacteria utilised for transformation, single-cell rotation for
Differences in morphologies of bacteria and bacteria clusters are thought to contribute to their virulence and colonization. However, the conventional standard cell biological methods cannot separate bacteria and bacteria clusters based on their morphologies and sizes, making studies of the underlying mechanisms difficult. Here we report a simple label-free method for the continuous separation of
We present a method based on CRISPR/Cas9 excision and DNA combing to detect anti-microbial resistance (AMR) genes on bacterial plasmids. The assay is inexpensive, simple, fast, and also provides information on the number and size of plasmids in a sample. We demonstrate detection of the gene encoding for the New Delhi metallobeta-lactamase 1 (blaNDM-1) enzyme, known to make bacteria resistant to a
We investigated the impact of inertial forces on acoustic sorting at high sample throughputs. Above a critical flow rate, we observed an unexpected inertia induced breakdown of the sorting efficiency that is not due to the wall induced lift force and was not previously described in the literature. We analyzed the effect experimentally and theoretically, providing an explanation to the phenomena, a
How do we relate to monuments and statues in public spaces? And how do our perceptions shift when history confronts us with new insights?In the wake of the Black Lives Matter movement in 2020, many monuments and statues across the world became the focal point of intense debate. Some were torn down, others covered up, and others were re-examined in light of not only colonial and racial oppression,
The aim of this project is to make a model which could be used during risk identification in swedish underground stations. The model is based on a risk identification in T-centralen, Stockholm and will in a foreseeable way structure the risk sources that can affect personal safety. There will be suggestions concerning preventive measures in an underground station, both material and organizational.
