http://www.leica-microsystems.com/science-lab/tag/tags/stereomicroscope/show/tag/ Article tagged with Stereomicroscope en-US It has always been a deeply rooted human need to give life a meaning after death. At the end of the 16th century, the friars of the Capuchin monastery in Palermo, Italy, began preserving corpses by embalming them. http://www.leica-microsystems.com/science-lab/forensics/in-the-catacombs-of-the-capuchin-monastery-in-palermo/ Thu, 02 May 2013 14:51:00 +0200 M. A. Jörg Scheidt, Dr. Mark Benecke, Dipl. Biol. Christina Baumjohann, M. A. Janika Wiesner Especially in fluorescence microscopy, excitation light is friend and foe in one. On the one hand, energy-rich excitation via a specific light wavelength of the fluorochrome resulting in a bright positive fluorochrome signal is highly welcome. On the other hand, "noise" caused by reflections of excitation light passing through the surfaces of optical elements needs to be extremely slight to generate a perfect black background. This relation is described as "signal-to-noise ratio", which is highly relevant for differentiating optically between fluorescence positive and negative cells. http://www.leica-microsystems.com/science-lab/stereomicroscopes-with-triplebeam-technology/ Tue, 02 Apr 2013 14:35:00 +0200 Björn Fuchs One hundred years ago, in 1913, the Optische Werke Ernst Leitz in Wetzlar, predecessor of Leica Microsystems CMS GmbH, made two inventions that were to blaze the trail for modern microscopy: the binocular tube and the integrating stage for quantitative microscopy. http://www.leica-microsystems.com/science-lab/history/100-years-of-binoculars-and-quantitative-microscopy/ Thu, 03 Jan 2013 00:00:00 +0100 Rolf Beck In exploring how embryos take shape, John Wallingford has identified a key pathway involved in vertebrate development – and human disease. http://www.leica-microsystems.com/science-lab/taking-the-long-view/ Tue, 11 Sep 2012 00:00:00 +0200 John B. Wallingford, Karen Hopkin Many people know Germany’s most famous forensic biologist, Dr. Mark Benecke from Cologne, from TV documentaries showing how crimes are solved. Benecke is a welcome guest on talk shows on topics such as forensic trace analysis, murder or the depths of the human psyche in general. He also enjoys an excellent international reputation. However, Mark Benecke’s normal working day bears little resemblance to the scenes shown in TV crime drama series. http://www.leica-microsystems.com/science-lab/even-insect-fragments-throw-light-on-how-crimes-are-committed-how-forensic-biologist-dr-mark-benecke-gains-insights/ Mon, 03 Sep 2012 00:00:00 +0200 Dr. Mark Benecke, M. A. Janika Wiesner “We have to take your fingerprints.” This sentence is spoken in nearly every TV crime drama to a suspect sitting in the interrogation room. But what exactly is it that makes a fingerprint so valuable for detectives in real life? How do fingerprint experts, known as dactyloscopists, perform their jobs? http://www.leica-microsystems.com/science-lab/how-a-fingerprint-is-traced-to-the-person-who-made-it-interactive-microscope-system-facilitates-dactyloscopist-training/ Mon, 13 Aug 2012 00:00:00 +0200 Dieter Kauer, M. A. Janika Wiesner Every ant has a story to tell. And what better person to tell it than Brian Fisher? Fisher is an entomologist at the California Academy of Sciences and Project Manager of AntWeb.org. The internet portal illustrates the diversity of ants by providing information and high quality color images of many of the approximately 10,000 known species of ants. http://www.leica-microsystems.com/science-lab/antweb-documents-the-world-of-ants/ Tue, 19 Jun 2012 00:00:00 +0200 Dr. Brian L. Fisher, Kerstin Pingel Exotic fruits and sun-kissed vegetables – we have long been accustomed to a huge selection of culinary delicacies that are available fresh in stores on a daily basis. Sometimes, however, these goods flown in from far away carry along unwanted passengers: pests, fungi, or viruses, which cannot be seen with the naked eye. http://www.leica-microsystems.com/science-lab/stereomicroscopes-in-the-eus-plant-inspection/ Mon, 07 May 2012 00:00:00 +0200 Claudia Moch Stereo microscopes are often nicknamed the workhorse of the lab or the production department. Users spend many hours behind the ocular inspecting, observing, documenting or dissecting samples. Which factors need to be considered when selecting... http://www.leica-microsystems.com/science-lab/factors-to-consider-when-selecting-a-stereo-microscope/ Fri, 27 Jan 2012 00:00:00 +0100 Daniel Goeggel “Germanic barbarians defeat super army!” That is the kind of news headline you might have seen in the year 9 AD about the victory of the Germanic tribes over three Roman legions under the command of Publius Quinctilius Varus. The Battle of the Teutoburg Forest is regarded as one of the most momentous battles of antiquity, and for a long time scientists have puzzled over where the fighting may have taken place. http://www.leica-microsystems.com/science-lab/where-the-germanic-forces-beat-the-romans/ Wed, 31 Aug 2011 00:00:00 +0200 Kerstin Pingel, Gisela Söger ID cards, driving licenses, birth certificates, A-level exams – the potential for individual perpetrators or gangs to gain advantages by forging documents is vast. And the more sophisticated the security standards, the better equipped experts have to be in order to clearly differentiate between genuine documents and fakes. http://www.leica-microsystems.com/science-lab/genuine-or-fake/ Wed, 31 Aug 2011 00:00:00 +0200 Martin Fischer, Dipl. oec.-troph. Anja Schué An insight into the unknown world of the deep sea was given in an exhibition staged by the Senckenberg Society together with the Natural History Museum in Basel, Switzerland. Shown in Frankfurt am Main and Berlin, Germany, the "Deep Sea" exhibition was a huge public success in 2009. From May to September 2010, the exhibition has been shown in the Natural History Museum in London. Scientists of the Senckenberg Society work with stereomicroscopes and digital cameras both in the laboratory and on the research ships. http://www.leica-microsystems.com/science-lab/one-of-our-last-horizons/ Sat, 23 Apr 2011 00:00:00 +0200 Prof. Dr. Michael Türkay, Kerstin Pingel In microscopy, depth of field is often seen as an empirical parameter. In practice it is determined by the correlation between numerical aperture, resolution and magnification. For the best possible visual impression, the adjustment facilities of modern microscopes produce an optimum balance between depth of field and resolution – two parameters which in theory are inversely correlated. http://www.leica-microsystems.com/science-lab/how-sharp-images-are-formed/ Thu, 29 Apr 2010 00:00:00 +0200 Dipl. Geol. Peter Bauer, Ruedi Rottermann Retina surgery demands experienced surgeons and precision technology. In vitreoretinal surgery, the surgeon operates with microscissors and forceps that are less than a millimeter thick. The Swiss company Alcon Grieshaber is one of the world’s leading specialists in handheld instruments for minimally invasive eye surgery. http://www.leica-microsystems.com/science-lab/precision-that-saves-eyesight/ Thu, 29 Apr 2010 00:00:00 +0200 Dipl. oec.-troph. Anja Schué Only a few decades ago, the diagnosis ‘cataracts’ meant loss of vision in the near future. Today, cataract surgery is the most common operation worldwide. http://www.leica-microsystems.com/science-lab/intraocular-lenses/ Thu, 29 Apr 2010 00:00:00 +0200 Kerstin Pingel On her way to work, Ruth Klebel is often approached by tourists asking for the times of guided tours. She always gives the same answer before disappearing behind the wide automatic gate: “I’m afraid there aren’t any, this is private property.” As a restorer of the collections of the Prince of Liechtenstein, Klebel is one of the very few people who regularly come and go at Vaduz Castle without actually living here. http://www.leica-microsystems.com/science-lab/restoring-former-glory-with-cotton-buds-and-a-microscope-the-princely-collections-of-liechtenstein/ Tue, 15 Dec 2009 00:00:00 +0100 M.A. Ruth Klebel, Dipl. oec.-troph. Anja Schué For more than a year from August 2007 through October 2008 museum visitors of the Statens Museum for Kunst, the Danish National Gallery in Copenhagen, were able to experience an open conservation studio in the exhibition area. The reason for bringing the conservators and all their equipment into the exhibition rooms of the museum was the conservation, restoration and technical research of Jacob Jordaens’ (1593 – 1678) early masterpiece “The Tribute Money. Peter Finding the Silver Coin in the Mouth of the Fish”, also known as “The Ferry Boat to Antwerp”. http://www.leica-microsystems.com/science-lab/restoration-in-an-open-workshop/ Tue, 15 Dec 2009 00:00:00 +0100 Dr. Jørgen Wadum, Troels Filtenborg, Anne Haack Christensen In 1852 Leopoldo Alinari, with his brothers Giuseppe and Romualdo, founded a photographic workshop in Florence, which is at the heart of the firm that still bears his name: Fratelli Alinari. It was the beginning of a unique endeavour that specialised in photographic portraiture, works of art and historical monuments, achieving national and international recognition. http://www.leica-microsystems.com/science-lab/save-our-memory/ Tue, 15 Dec 2009 00:00:00 +0100 Sam Habibi Minelli In the 2nd century BC, Baiae in the Gulf of Naples was a notorious bathing resort and spa for wealthy Romans. Today, part of the town is submerged under the sea and can be visited as an 80,000 square metre archaeological underwater park. The magnificent mosaics from the underwater ruins are analysed at the Istituto Superiore per la Conservazione e il Restauro (ISCR) of the Ministry for Cultural Heritage and Activities in Rome. http://www.leica-microsystems.com/science-lab/antique-underwater-treasures-endangered/ Tue, 15 Dec 2009 00:00:00 +0100 Gianfranco Priori, Kerstin Pingel Gemstones have fascinated people for thousands of years. Rulers and kings used to demonstrate their power and wealth with jewel-studded insignia. Although fine jewellery is still a status symbol of the rich, we now tend to treasure these wonders of nature more for our own pleasure in beauty and harmony. http://www.leica-microsystems.com/science-lab/exclusive-aesthetics-of-nature/ Tue, 15 Dec 2009 00:00:00 +0100 M.Sc. Michael Hügi A study carried out jointly by Leica Microsystems and the Institute of Neuroinformatics at the University of Zurich and Swiss Federal Institute of Technology provided the basis for an innovation in stereomicroscopy: FusionOptics™. The significant performance increase attained by FusionOptics™ is highly valuable for everyday work at the microscope. http://www.leica-microsystems.com/science-lab/fusionoptics/ Fri, 18 Apr 2008 00:00:00 +0200 Dr. Daniel Kiper, Dipl. oec.-troph. Anja Schué, Daniel Goeggel For the study of minute marine organisms such as free swimming larvae or bottom dwelling invertebrates it is a great advantage to have modern microscopic equipment in close proximity to the natural habitat. This allows the acquisition of images from organisms under virtually natural conditions. http://www.leica-microsystems.com/science-lab/in-the-footsteps-of-linnaeus-microscopic-imaging-in-marine-biodiversity-research/ Fri, 02 Nov 2007 00:00:00 +0100 Mike Thorndyke, Ph.D. Matthias Obst, Ph.D. Sam Dupont Embryonic stem (ES) cells have been investigated as a potential replacement therapy for failed organs, such as the liver. However, detection of hepatic engraftment from candidate stem cells has been difficult due to low engraftment efficiency. Previous detection methods required that the graft be processed by molecular and/or immunohistochemical techniques, limiting further functional studies. This study evaluated the use of three-dimensional fluorescent stereomicroscopy for gross detection of ES cell derived hepatic engraftment. http://www.leica-microsystems.com/science-lab/detection-and-characterization-of-hepatic-engraftment-of-embryonic-stem-derived-cells-by-fluorescent-stereomicroscopy/ Wed, 15 Aug 2007 15:23:00 +0200 MD Jeffrey H. Fair, MD Bruce A. Cairns, PhD Seigo Hatada, BS Andrew Pleasant, MD Michael LaPaglia, MD Harry M. Lightfoot Jr., PhD Montserrat Caballero Until the middle of the 19th century, microscopes were hand-crafted custom instruments. At the time, it was not possible to predict the properties of a lens in advance, so lenses were shaped and tested repeatedly until they delivered the desired magnification. http://www.leica-microsystems.com/science-lab/the-history-of-stereomicroscopy-part-iii/ Thu, 11 Jan 2007 14:03:00 +0100 Daniel Goeggel For millennia, glass was admired for its beauty and the artful objects that could be created with it. With the rise of the exact sciences, however, researchers became more demanding with regard to glass quality. Traditional glass was not suitable for microscope lenses – streaks, bubbles and inclusions containing impurities made precise observation impossible. http://www.leica-microsystems.com/science-lab/the-history-of-stereomicroscopy-part-ii/ Thu, 11 Jan 2007 11:18:00 +0100 Daniel Goeggel The 17th century in Europe was marked by the Thirty Years' War (1618–1648). The population lived in constant fear and poverty. Marauding hordes wandered the countryside; failed harvests, plagues, pestilence and starvation were the order of the day. Most of the population had little in the way of clothing or shoes, and lived in modest huts infested by parasites and rats. http://www.leica-microsystems.com/science-lab/the-history-of-stereomicroscopy-part-i/ Thu, 11 Jan 2007 00:00:00 +0100 Daniel Goeggel