Extension of an automatic building extraction technique to airborne laser scanner data containing damaged buildings

Airborne laser scanning systems generate 3-dimensional point clouds of high density and irregular spacing. These data consist of multiple returns coming from terrain, buildings, and vegetation. The major difficulty is the extraction of object categories, usually buildings. In the field of disaster management, the detection of building damages plays an important role. Therefore, the question arises, if damaged buildings can also be detected by a method developed for the automatic extraction of buildings. Another purpose of this study is to extend and test an automatic building detection method developed initially for first echo laser scanner data on data captured in first and last echo. In order to answer these two questions, two institutes share their data and knowledge: the Institute of Photogrammetry and Remote Sensing (IPF, Universität Karlsruhe (TH), Germany) and the MAP-PAGE team (INSA de Strasbourg, France). The used 3D LIDAR data was captured over an area containing undamaged and damaged buildings. The results achieved for every single processing step by applying the original and the extended algorithm to the data are presented, analysed and compared. It is pointed out which buildings can be extracted by which algorithm and why some buildings remain undetecte

PENGKAYAAN PERTOLONGAN PERTAMA DALAM KEGAWAT DARURATAN DAN PENDIDIKAN KESEHATAN SEKSUAL (HIV/AIDS) PADA SISWA SEKOLAH DI SMA 1 PLOSO JOMBANG

Bahaya prikologis juga mengintai anak-anak disekolah. Ssalah satu hal yang tidak dapat terlepas adalah bahaya kekerasan seksual. Anak-anak, khususnya usia remaja awal, mempunyai ketertarikan yang sangta besar akan seksualitas. Hal ini juga ditunjang fase perkembangan psikologis remaja muda yang mengalami pencarian jati diri. Sehingga, bahaya psikologis ini semakin besar mengintai. Tujuan dari penelitian ini adalah Meningkatkan pengetahuan siswa akan bahaya fisik dan psikis yang mengintai di sekolah. Hasil dari penelitian ini adalah meningkatnya pegetahuan siswa SMA mengenai penanganan kegawadaruratan dasar serta memberikan rasa mawas diri terhadap kesehatan reproduksi dan penyakit seksua

The seed laser system of the FERMI free-electron laser: design, performance and near future upgrades

Abstract An important trend in extreme ultraviolet and soft X-ray free-electron laser (FEL) development in recent years has been the use of seeding by an external laser, aimed to improve the coherence and stability of the generated pulses. The high-gain harmonic generation seeding technique was first implemented at FERMI and provided FEL radiation with high coherence as well as intensity and wavelength stability comparable to table-top ultrafast lasers. At FERMI, the seed laser has another very important function: it is the source of external laser pulses used in pump–probe experiments allowing one to achieve a record-low timing jitter. This paper describes the design, performance and operational modes of the FERMI seed laser in both single- and double-cascade schemes. In addition, the planned upgrade of the system to meet the challenges of the upgrade to echo-enabled harmonic generation mode is presented

Optimization of ruthenium as a buffer layer for non-collinear antiferromagnetic Mn<inf>3</inf>X films

Two thin film deposition routes were studied for the growth of high quality single crystalline Ru (0001) epitaxial films on c-Al2O3 substrates using RF-magnetron sputtering. Such films are very important as buffer layers for the deposition of epitaxial non-collinear antiferromagnetic Mn3X films. The first route involved depositing Ru at 700 °C, leading to a smooth 30 nm thick film. Although, high resolution X-ray diffraction (HRXRD) revealed twinned Ru film orientations, the in-situ post-annealing eliminated one orientation, leaving the film orientation aligned with the substrate, with no in-plane lattice rotation and a large lattice mismatch (13.6%). The second route involved deposition of Ru at room temperature followed by in-situ post-annealing at 700 °C. Transmission electron microscopy confirmed a very high quality of these films, free of crystal twinning, and a 30° in-plane lattice rotation relative to the substrate, resulting in a small in-plane lattice mismatch of –1.6%. X-ray reflectivity demonstrated smooth surfaces for films down to 7 nm thickness. 30 nm thick high quality single-crystalline Mn3Ga and Mn3Sn films were grown on top of the Ru buffer deposited using the second route as a first step to realize Mn3X films for antiferromagnetic spintronics applications.H2020-MSCA-ITN-2014 SELECTA (grant agreement no. 642642 of the European Commission)

Observation and control of hybrid spin-wave-Meissner-current transport modes

Superconductors are materials with zero electrical resistivity and the ability to expel magnetic fields known as the Meissner effect. Their dissipationless diamagnetic response is central to magnetic levitation and circuits such as quantum interference devices. Here, we use superconducting diamagnetism to shape the magnetic environment governing the transport of spin waves - collective spin excitations in magnets that are promising on-chip signal carriers - in a thin-film magnet. Using diamond-based magnetic imaging, we observe hybridized spin-wave-Meissner-current transport modes with strongly altered, temperature-tunable wavelengths. We extract the temperature-dependent London penetration depth from the wavelength shifts and realize local control of spin-wave refraction using a focused laser. Our results demonstrate the versatility of superconductor-manipulated spin-wave transport and have potential applications in spin-wave gratings, filters, crystals and cavities.Comment: main: 8 pages, 5 figures, supp: 15 pages, 6 figure

Clinical utilisation of implantable loop recorders in adults with Fabry disease-a multi-centre snapshot study

Fabry disease (FD) is an X-linked deficiency of alpha-galactosidase-A, leading to lysosomal storage of sphingolipids in multiple organs. Myocardial accumulation contributes to arrhythmia and sudden death, the most common cause of FD mortality. Therefore, there is a need for risk stratification and prediction to target device therapy. Implantable loop recorders (ILRs) allow for continual rhythm monitoring for up to 3 years. Here, we performed a retrospective study to evaluate current ILR utilisation in FD and quantify the burden of arrhythmia that was detected, which resulted in a modification of therapy. This was a snapshot assessment of 915 patients with FD across three specialist centres in England during the period between 1 January 2000 and 1 September 2022. In total, 22 (2.4%) patients underwent clinically indicated ILR implantation. The mean implantation age was 50 years and 13 (59%) patients were female. Following implantation, nine (41%) patients underwent arrhythmia detection, requiring intervention (six on ILR and three post-ILR battery depletion). Three patients experienced sustained atrial high-rate episodes and were started on anticoagulation. Three had non-sustained tachyarrhythmia and were started on beta blockers. Post-ILR battery depletion, one suffered complete heart block and two had sustained ventricular tachycardia, all requiring device therapy. Those with arrhythmia had a shorter PR interval on electrocardiography. This study demonstrates that ILR implantation in FD uncovers a high burden of arrhythmia. ILRs are likely to be underutilised in this pro-arrhythmic cohort, perhaps restricted to those with advanced FD cardiomyopathy. Following battery depletion in three patients as mentioned above, greater vigilance and arrhythmia surveillance are advised for those experiencing major arrhythmic events post-ILR monitoring. Further work is required to establish who would benefit most from implantation.</p

Adipose saturation reduces lipotoxic systemic inflammation and explains the obesity paradox

Obesity sometimes seems protective in disease. This obesity paradox is predominantly described in reports from the Western Hemisphere during acute illnesses. Since adipose triglyceride composition corresponds to long-term dietary patterns, we performed a meta-analysis modeling the effect of obesity on severity of acute pancreatitis, in the context of dietary patterns of the countries from which the studies originated. Increased severity was noted in leaner populations with a higher proportion of unsaturated fat intake. In mice, greater hydrolysis of unsaturated visceral triglyceride caused worse organ failure during pancreatitis, even when the mice were leaner than those having saturated triglyceride. Saturation interfered with triglyceride\u27s interaction and lipolysis by pancreatic triglyceride lipase, which mediates organ failure. Unsaturation increased fatty acid monomers in vivo and aqueous media, resulting in greater lipotoxic cellular responses and organ failure. Therefore, visceral triglyceride saturation reduces the ensuing lipotoxicity despite higher adiposity, thus explaining the obesity paradox

Use of Polysiloxane Coatings to Fight Against Biodamages of Wooden Architecture Monuments

This study presents the results of a search for ways to prevent biodestructive processes, occurring in the natural environment of wooden architecture monuments localization. On the Sviyazhsk island since the 16th century an unique site of wooden architecture of the Volga region has been preserved. It is the Trinity Church, the only building, although rebuilt over the centuries, that has survived from the wooden medieval island-town. Climate changes, cultural tourism and living organisms activities make a significant contribution to the change in the initial state of the tree. The greatest contribution to the processes of biodamage is made by mold fungi – micromycetes. Experimental work carried out on a fragmentary sample of a structural element of the Trinity Church revealed that coating the surface of the sample with a synthetic varnish based on a mixture of linear and cyclic methylmethoxypolysiloxanes prevents the growth of microscopic fungi on the surface, among which Aspergillus niger dominates. The growth area of the sample is reduced by about 6 times compared to the untreated variant. By artificial infection of samples with spores of Aspergillus niger, Penicillus chrysogenum, Fusarium graminearum and Aspergillus puulaauensis, the growth area of varnished samples also decreases by 7 times, and the number of conidiophores, reflecting the growth of micromycetes, by 4 times. The obtained results make it possible to recommend the use of polysiloxane coatings for the protection of especially important fragments of wooden artifacts