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Background: The sporulation of aerial hyphae of Streptomyces coelicolor is a complex developmental process. Only a limited number of the genes involved in this intriguing morphological differentiation programme are known, including some key regulatory genes. The aim of this study was to expand our knowledge of the gene repertoire involved in S. coelicolor sporulation. Results: We report a DNA micr

Multi-agent coordination control usually involves a potential function that encodes information of a global control task, while the control input for individual agents is often designed by a gradient-based control law. The property of Hessian matrix associated with a potential function plays an important role in the stability analysis of equilibrium points in gradient-based coordination control s

To further clarify the mechanisms maintaining chronic atrial fibrillation (CAF). a method for system identification of activation patterns of the atria was developed. Data were obtained as repeated recordings of 8 s duration, each of 56 atrial bipolar electrograms, simultaneously acquired during open-heart surgery at multiple sites in the right atrial free wall in 12 patients with stable sinus rhy

In this work we report results of ferromagnetic resonance studies of a 6% 15 nm (Ga,Mn)As layer, deposited on (001)-oriented GaAs. The measurements were performed with in-plane oriented magnetic field, in the temperature range between 5 K and 120 K. We observe a temperature induced reorientation of the effective in-plane easy axis from [(1) over bar 10] to [110] direction close to the Curie temper

Amplification and overexpression of PPM1D (protein phosphatase magnesium-dependent 1 delta) has been observed in various cancer cell lines and primary tumors and has also been associated with cancers of poor prognosis. In addition to the negative feedback regulation of p38-p53 signaling, PPM1D inhibits other tumor suppressor activities and is involved in the control of DNA damage and repair pathwa

ABSTRACTThe aim of this working paper is to expand the range of pedagogical tools for teaching statistics to social work students, by introducing an innovative tool that is based on the factorial survey and intended for practicing statistical analysis. The factorial survey, which was pioneered by the American sociologist Peter Rossi around 45 years ago, involves the use of experimentally constructThe aim of this working paper is to expand the range of pedagogical tools for teaching statistics to social work students, by introducing an innovative tool that is based on the factorial survey and intended for practicing statistical analysis. The factorial survey, which was pioneered by the American sociologist Peter Rossi around 45 years ago, involves the use of experimentally constructed ficti

In order to find previously unknown subgroups in biomedical data and generate testable hypotheses, visually guided exploratory analysis can be of tremendous importance. In this paper we propose a new dissimilarity measure that can be used within the Multidimensional Scaling framework to obtain a joint low-dimensional representation of both the samples and variables of a multivariate data set,

Professor Kontaktinformation E-post: michael [dot] ljungberg [at] med [dot] lu [dot] se Telefon: +46 46 17 35 65 Mobil: +46 70 817 31 15Organisation Medicinsk strålningsfysik, Lund Besöksadress: Barngatan 2:1, Lund Rumsnummer: SUS Lund Kampradhuset 12-11 Hämtställe: 32 WebbplatsMichael Ljungbergs profil i Lunds universitets forskningsportalAndra roller Projektledare Nuclear Medicine PhysicsPersona

https://www.msf.lu.se/michael-ljungberg - 2026-06-27

Investigations of host preferences in haematophagous insects, including Culicoides biting midges (Diptera: Ceratopogonidae), are critical in order to assess transmission routes of vector-borne diseases. In this study, we collected and morphologically identified 164 blood-engorged Culicoides females caught in both light traps and permanent 12-m high suction traps during 2008-2010 in Sweden. Molecul

The gamma decay of excited states in the N = Z odd-odd nucleus Rb-74 has been observed for the first time. The reaction Ca-40(Ca-40,alpha pn)Rb-74 at 128 MeV beam energy was used. The ground state rotational band can be interpreted as being formed from the T = 1 isobaric analog states of Kr-74 with pairing correlations based on T = 1, M(T) = 0 neutron-proton pairs. At higher rotational frequency,

Tenosynovial giant cell tumors (TGCTs) are benign lesions of the tendon sheaths that primarily affect the fingers, ankles, or feet. Cytogenetic data have shown that 1p13 is most frequently involved in structural aberrations and that 2q37 is its most common translocation partner. The genes involved in the translocation t(1;2)(p13;q37) were recently identified: the colony-stimulating factor-1 (CSF1