Comparison of the Efficacy of Intra-Articular Corticosteroid Injections Versus Saline Solution for Thumb Osteoarthritis: Multicentric Double-Blind Pragmatic Randomized Pilot Study

Thumb osteoarthritis or trapeziometacarpal osteoarthritis (TMO) is a common and painful form of hand arthritis that limits thumb mobility and hand function, affecting patients' quality of life. Although corticosteroids injections are a typical treatment, their effectiveness has been challenged, and side effects have been reported. Recent studies suggest that saline injections, usually considered inactive, might be a viable treatment option. The primary goal of this study is to compare the effectiveness of saline injections versus corticosteroids injections in reducing TMO-related pain and improving hand function. In this study, 40 people with TMO will be randomly assigned to receive either a corticosteroids or a saline injection, without them or the doctors performing the injection knowing which one was administered (double blind). If saline injections prove more effective, they could provide a less harmful and cheaper therapeutic alternative for TMO patients.

开始日期2025-02-01

申办/合作机构

Université Du Québec à Trois-Rivières

[+5]

NCT06368323 / RecruitingN/AIIT

Effect of Community Choir Singing in People With Chronic Post-stroke Aphasia

The goal of this randomized controled trial is to test the effects of assigning people with chronic post-stroke aphasia to 12 weekly choir sessions, compared to usual care.
The main question it aims to answer is:
Does the assignment to a choir singing program causes a beneficial effect on functional communication and language recovery as well as psychosocial outcomes compared to usual care in the rehabilitation of people with chronic post-stroke aphasia?
Participants will have:
12 in-person choir-singing sessions (1 session/week, 1,5 h/session, total 18h) conducted by a choir master, and home singing training (3 x 30-minutes-sessions/week, total 18h)

开始日期2024-04-22

申办/合作机构

University of Ottawa

[+4]

NCT06430294 / RecruitingN/AIIT

Force-time Characteristics of Spinal Mobilizations Delivered on Pediatric Manikins

This observational study aims to create simulations using pediatric manikins to teach pediatric spinal mobilizations. We'll measure the force and duration of spinal mobilizations applied by chiropractors on pediatric manikins. Another objective is to gather feedback from both students and teachers on the effectiveness of using manikins for teaching.
The main questions it aims to answer are:
1. How much force and for how long do chiropractors apply spinal mobilizations on pediatric manikins?

开始日期2024-03-01

申办/合作机构

Université Du Québec à Trois-Rivières

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2024-12-31·International Journal of Digital Earth

Evaluating soil moisture retrieval in Arctic and sub-Arctic environments using passive microwave satellite data

作者: Berg, Aaron ; Bircher-Adrot, Simone ; Boike, Julia ; Gibon, François ; Royer, Alain ; Richaume, Philippe ; Ortet, Juliette ; Humphreys, Elyn ; Mialon, Arnaud ; Gorrab, Azza ; Kerr, Yann ; Roy, Alexandre

2024-12-31·Journal of Natural Fibers

Improving the Mechanical Strength of Paper Sheets Made from Phosphorylated Fibers Through the Use of Forming Agents

作者: Abenghal, Lahbib ; Brouillette, Francois ; Lamoudan, Hamid

The use of retention agents overcomes the strong repulsion between phosphorylated fibers due to their high charge.The addition of polymeric retention agents allows a significant improvement in the formation index of phosphorylated sheets.The polymeric retention agents yield higher strength to the sheets prepared from PKF1 and PKF2, even outperforming sheets made from kraft pulp only.

2024-12-31·Health Psychology and Behavioral Medicine

Psychosocial determinants of healthy sleep habits in adults with type 1 and type 2 diabetes

Article

作者: Turcotte, Stéphane ; Beaulieu, Dominique ; Boudreau, François ; Vézina-Im, Lydi-Anne ; Morin, Christine ; Turcotte, Anne-Frédérique

BackgroundMany adults with type 1 (T1D) and type 2 diabetes (T2D) have inadequate sleep increasing their risk of hyperglycemia and developing complications. The objective was to identify psychosocial determinants of healthy sleep habits (HSH) among adults with T1D and T2D.MethodsThe two HSH were: avoiding screen use in bed and having sleep regularity. Adults (≥18 years) with T1D and T2D were invited to complete an anonymous online survey. The questionnaires were based on the Reasoned Action Approach and formative qualitative research previously conducted in 56 adults with T1D and T2D. Habit was included as an additional variable for screen use in bed.ResultsIn total, 320 adults with diabetes (T1D: 39%; T2D: 61%) completed the questionnaires (screen use in bed: 174; sleep timing: 146). Close to 75% of participants reported screen use in bed and close to 90% reported sleep timing variability in the last month. Perceived behavioral control (PBC) to avoid screen use in bed (β = -0.4486, p < 0.0001), habit of using screens in bed (β = 0.4002; p < 0.0001), and age (β = -0.0202; p = 0.0086) were determinants of screen use in bed, and this model explained 71% of the variance. PBC for sleep regularity (β = -0.2909; p = 0.0004) and being female (β = 0.5057; p = 0.0069) were determinants of sleep timing variability, and this model explained 28% of the variance. The most important beliefs associated with each HSH were identified to obtain information to design targeted interventions.ConclusionsFew adults with diabetes have HSH. Screen use in bed was strongly influenced by habit and the results suggest that both HSH are not easy to adopt among adults with diabetes. Younger adults with diabetes should be prioritized for screen use in bed, while females with diabetes should be prioritized for sleep timing variability. Adults with diabetes should have access to behavior change interventions to encourage them to adopt HSH.

项与 Université Du Québec à Trois-Rivières 相关的新闻（医药）

2023-10-17

·PRNewswire

Rodent Optic Nerve Head Wins the 49th Annual Nikon Small World Photo Microscopy Competition

The 2023 first place image showcases a debilitating and prevalent complication of diabetes MELVILLE, N.Y., Oct. 17, 2023 /PRNewswire/ -- Nikon Instruments Inc. today unveiled the winners of the 49th annual Nikon Small World Photomicrography Competition. This year's first place prize was awarded to Hassanain Qambari, assisted by Jayden Dickson of the Lions Eye Institute, for his vivid image of a rodent optic nerve head showing astrocytes (yellow), contractile proteins (red), and retinal vasculature (green). The colorful image provides an important contribution to the study and reversal of diabetic retinopathy, which affects one in five persons with diabetes worldwide.1 Continue Reading Nikon Small World (PRNewsfoto/Nikon Instruments Inc.) Rodent optic nerve head showing astrocytes (yellow), contractile proteins (red) and retinal vasculature (green) Diabetic retinopathy occurs when high blood sugar damages the blood vessels in the tissue at the back of the eye, known as the retina. The damaged blood vessels can swell and leak, which can cause blurry vision or total loss of eyesight. Since 2021, Qambari has devoted his time and research to the early detection and reversal of the disease. "Current diagnostic criteria and treatment regimens for diabetic retinopathy are limited to the late-stage appearance of the disease, with irreversible damage to retinal microvasculature and function," said Qambari. "The visual system is a complex and highly specialized organ, with even relatively minor perturbations to the retinal circulation able to cause devastating vision loss. I entered the competition as a way to showcase the complexity of retinal microcirculation." Qambari faced some challenges when capturing his image such as locating fine vessels near 110 microns in diameter and establishing a protocol for labeling different cell types. "Over the past 20 years, our research group has refined the technique of isolated ocular perfusion labeling for fine vessels in the eye," said Qambari. "While the ophthalmic artery in the rodent model presented a technically demanding challenge, we were able to overcome it with persistence and patience." The final result educates the public about the universal condition affecting millions and the vital research necessary to further advance care. "The Nikon Small World competition is great, as it showcases amazing work across many disciplines from around the world," said Qambari. "All the images presented in the competition represent the beauty and artistic side of science which may otherwise get overlooked. Such a competition not only celebrates the participant's hard work and passion but may also draw and inspire young scientists to pursue a career in STEM. It certainly inspired me." Like Qambari, Eric Flem, Senior Manager, CRM and Communications at Nikon Instruments, is passionate about sharing exemplary scientific work and artistic techniques. "The past 49 years of this competition have borne witness to many innovative and pioneering advancements in scientific imaging technology," said Flem. "I am consistently awed by how these advancements make it possible to create art out of science for the public to enjoy." Second place was awarded to Ole Bielfeldt for his image of a matchstick igniting by the friction surface of the box. The image was taken within one eight-thousands of a second and utilized imaging stacking. Third place was awarded to Malgorzata Lisowska for her image of breast cancer cells. In addition to the top three winners, Nikon Small World recognized 83 photos out of thousands of entries from scientists and artists across the globe. The 2023 judging panel included: Ed Cara, Science and Health Reporter at Gizmodo James Cutmore, Picture Editor at BBC Science Focus Magazine Dr. Gary Laevsky, Director of the Confocal Imaging Facility at Princeton University Dr. Igor Siwanowicz, Research Scientist at Howard Hughes Medical Institute Dr. Clare Waterman, Cell Biologist and Member of the National Academy of Sciences For additional information, please visit , or follow the conversation on Facebook, Twitter @NikonSmallWorld and Instagram @NikonInstruments. NIKON SMALL WORLD WINNERS 1st Place Hassanain Qambari & Jayden Dickson The Lions Eye Institute Department of Physiology & Pharmacology Perth, Western Australia, Australia Rodent optic nerve head showing astrocytes (yellow), contractile proteins (red) and retinal vasculature (green) Confocal, Fluorescence, Image Stacking 20X (Objective Lens Magnification) 2nd Place Ole Bielfeldt Macrofying Cologne, North Rhine-Westphalia, Germany Matchstick igniting by the friction surface of the box. Brightfield, Image Stacking 2.5X (Objective Lens Magnification) 3rd Place Malgorzata Lisowska Independent Value Based Healthcare Consultant Warsaw, Mazowieckie, Poland Breast cancer cells Brightfield, Image Stacking 40X (Objective Lens Magnification) 4th Place John-Oliver Dum Medienbunker Produktion Bendorf, Rheinland-Pfalz, Germany Venomous fangs of a small tarantula Image Stacking 10X (Objective Lens Magnification) 5th Place Dr. David Maitland Feltwell, Norfolk, United Kingdom Auto-fluorescing defensive hairs covering the leaf surface of Eleagnus angustifolia exposed to UV light Fluorescence, Image Stacking 10X (Objective Lens Magnification) 6th Place Timothy Boomer WildMacro.com Vacaville, California, USA Slime mold (Comatricha nigra) showing capillitial fibers through its translucent peridium Image Stacking 10X (Objective Lens Magnification) 7th Place Dr. Grigorii Timin & Dr. Michel Milinkovitch University of Geneva Department of Genetics and Evolution Geneva, Switzerland Mouse embryo Light Sheet 4X (Objective Lens Magnification) 8th Place Stefan Eberhard University of Georgia Athens, Georgia, USA Caffeine crystals Polarized Light 25X (Objective Lens Magnification) 9th Place Vaibhav Deshmukh Baylor College of Medicine Department of Molecular Physiology and Biophysics Houston, Texas, USA Cytoskeleton of a dividing myoblast; tubulin (cyan), F-actin (orange) and nucleus (magenta) Fluorescence, Structured Illumination Microscopy (SIM) 63X (Objective Lens Magnification) 10th Place Melinda Beccari & Dr. Don W. Cleveland UC San Diego Department of Cellular and Molecular Medicine La Jolla, California, USA Motor neurons grown in microfluidic device for separation of cell bodies (top) and axons (bottom). Green - microtubules; Red - growth cones (actin). Confocal, Fluorescence 20X (Objective Lens Magnification) 11th Place Dr. Diego García Universidad Complutense de Madrid Real Sociedad Española de Física Madrid, Spain Crystallized sugar syrup Polarized Light 25X (Objective Lens Magnification) 12th Place Sherif Abdallah Ahmed Faculty of Science, Tanta University Department of Zoology Tanta, Egypt, Arab Republic "Cuckoo wasp" standing on a flower Image Stacking 4X (Objective Lens Magnification) 13th Place Satu Paavonsalo & Dr. Sinem Karaman University of Helsinki Individualized Drug Therapy Research Program, Faculty of Medicine Helsinki, Finland Blood and lymphatic vasculatures in the ear skin of an adult mouse Confocal 10X (Objective Lens Magnification) 14th Place John-Oliver Dum Medienbunker Produktion Bendorf, Rheinland-Pfalz, Germany Sunflower pollen on an acupuncture needle Image Stacking 40X (Objective Lens Magnification) 15th Place Dr. Pichaya Lertvilai UC San Diego Scripps Institution of Oceanography La Jolla, California, USA Fluorescent image of an Acropora sp. showing individual polyps with symbiotic zooxanthellae Darkfield, Fluorescence, Image Stacking 5X (Objective Lens Magnification) 16th Place Dr. Diego García Universidad Complutense de Madrid Real Sociedad Española de Física Madrid, Spain Carbon nanotubes Stereomicroscopy 30X (Objective Lens Magnification) 17th Place Yuan Ji World Expo Museum Shanghai, China Chinese moon moth (Actias ningpoana) wing scales Image Stacking 20X (Objective Lens Magnification) 18th Place Scott Peterson New Hope, Minnesota, USA A cryptocrystalline micrometeorite resting on a #80 testing sieve. Image Stacking 20X (Objective Lens Magnification) 19th Place Marek Miś Marek Miś Photography Suwalki, Podlaskie, Poland Stomata in peace lily (Spathiphyllum sp.) leaf epidermis Polarized Light 40X (Objective Lens Magnification) 20th Place Daniel Castranova & Dr. Brant Weinstein National Institutes of Health (NIH), Eunice Kennedy Shriver National Institute of Child Health and Human Development Bethesda, Maryland, USA Adult transgenic zebrafish head showing blood vessels (blue), lymphatic vessels (yellow), and the skin and scales (magenta) Confocal 4X (Objective Lens Magnification) HM Dr. Arthur Chien & Dr. Ann Na Cho Macquarie University Microscopy Facility Macquarie University, New South Wales, Australia Organ-on-chip system enabling the synaptic conjugation between 3D human embryonic stem cells Confocal 10X (Objective Lens Magnification) HM Dr. Amy Engevik Medical University of South Carolina Department of Regenerative Medicine & Cell Biology Charleston, South Carolina, USA Neonatal mouse intestinal tissue cells Fluorescence 20X (Objective Lens Magnification) HM Dr. Nathan P. Myhrvold Modernist Cuisine Bellevue, Washington, USA Trichinella cyst in pork muscle (Trichinella is a parasitic worm known to cause trichinosis) Brightfield, Image Stacking 10X (Objective Lens Magnification) HM Ángel Navarro Gómez Madrid, Spain Carpenter bee (Xylocopa violacea) head and antenna Image Stacking 20X (Objective Lens Magnification) HM Dr. Andrew M. Posselt University of California, San Francisco (UCSF) Division of Transplant Surgery Mill Valley, California, USA Underside of cellar spider (Pholcus phalangioides) Image Stacking 10X (Objective Lens Magnification) HM Dr. Grigorii Timin & Dr. Michel Milinkovitch University of Geneva Department of Genetics and Evolution Geneva, Switzerland Dermal collagen in embryonic snake scales Confocal 63X (Objective Lens Magnification) HM Dr. Bas van Bommel Freie Universität Berlin Department of Biochemistry Berlin, Germany Rat astrocytes Confocal 40X (Objective Lens Magnification) HM Travis Wagner Rochester Institute of Technology Department of Mechanical Engineering Rochester, New York, USA Sphagnum moss with two air bubbles on the sample Fluorescence, Image Stacking 20X (Objective Lens Magnification) IoD Dr. Florian Alonso University of Bordeaux BioTis-INSERM U1026 Pessac, Gironde, France Formation of blood vessels (angiogenesis) in the retina from a Lifeact-EGFP newborn mouse Confocal 63X (Objective Lens Magnification) IoD Raghuram Annadana Raghuram Annadana Photography Bangalore, Karnataka, India Developing stamen and stigma inside a Hibiscus flower bud Panoramic Image Stacking 10X (Objective Lens Magnification) IoD Dr. Alexandre Beber Institute of Biotechnology CAS Vestec, Central Bohemia, Czech Republic Fluorescent actin filaments (yellow) and fluorescent anillin protein (blue) deposited on a glass coverslip after dewetting Fluorescence, Confocal 60X (Objective Lens Magnification) IoD Todd Becker Teabeck Verona, Wisconsin, USA Platinum spark plug Image Stacking, Reflected Light 4X (Objective Lens Magnification) IoD Dr. Frantisek Bednar Svosov, Zilinsky, Slovak Republic Slime mold (Trichia crateriformis) Image Stacking 5X (Objective Lens Magnification) IoD Taylor Bell Gustometry + SF Micro Society Norwalk, Connecticut, USA Freshwater amphipod Image Stacking 4X (Objective Lens Magnification) IoD Timothy Boomer WildMacro.com Vacaville, California, USA Slime mold (Didymium sp.) fruiting bodies Image Stacking 10X (Objective Lens Magnification) IoD Dr. Michael John Bridge & Michael Sieverts University of Utah HSC Cell Imaging Core Salt Lake City, Utah, USA Mouse femur bone lacunar-canalicular network (voids in bone that house osteocytes and their interconnected micro-tubular processes) Confocal 63X (Objective Lens Magnification) IoD Arturo Calderón, Dr. Miguel Tapia-Rodríguez & Dr. Juan Pedro Laclette National Autonomous University of Mexico (UNAM) Department of Immunology Mexico City, Mexico Muscle architecture of an evaginating tapeworm (Taenia crassiceps cysticercus) Confocal, Fluorescence, Image Stacking 10X (Objective Lens Magnification) IoD Hsuan Chen Academia Sinica Chen-Hui Chen's Lab in the Institute of Cellular and Organismic Biology Taipei City, Taipei, Taiwan In toto image of the skin and mucous cells in a live zebrafish larva Confocal 10X (Objective Lens Magnification) IoD Dr. Arthur Chien Macquarie University Microscopy Facility Macquarie University, New South Wales, Australia Cleared mouse embryo Stereomicroscopy, Reflected Light, Focus Stacking 0.5X (Objective Lens Magnification) IoD Nikky Corthout & Alex Calzoni VIB (Flanders Institute of Biotechnology) Center for Brain and Disease Research Leuven, Vlaams-Brabant, Belgium Retrograde labeled neurons in the cortex of a cortical mouse brain section Image Stacking, Fluorescence, Confocal 20X (Objective Lens Magnification) IoD John-Oliver Dum Medienbunker Produktion Bendorf, Rheinland-Pfalz, Germany Cabbage butterfly eggs Brightfield, Image Stacking 20X (Objective Lens Magnification) IoD Nadia Efimova Amicus Therapeutics Philadelphia, Pennsylvania, USA Maturing mouse cortical neuron in culture Confocal, Deconvolution, Fluorescence 63X (Objective Lens Magnification) IoD Ricardo Roberto Fernández Martínez IES Virgen de la Luz Department of Biology and Geology Avilés, Asturias, Spain Tail of planktonic shrimp larvae Image Stacking 17X (Objective Lens Magnification) IoD Frank Fox Trier University of Applied Sciences Konz, Rheinland-Pfalz, Germany Marine organism (Pyrocystis lunula, Dinophyceae) Differential Interference Contrast (DIC) 100X (Objective Lens Magnification) IoD Ian Gardiner Calgary, Alberta, Canada Clam shrimp (Lynceus mucronatus) Reflected Light, Focus Stacking 2.5X (Objective Lens Magnification) IoD Dr. Saikat Ghosh & Dr. Juan S. Bonifacino National Institutes of Health NICHD Bethesda, Maryland, USA iPSC-derived human neurons Confocal 40X (Objective Lens Magnification) IoD Dr. Thomas G.W. Graham University of California, Berkeley Department of Molecular and Cell Biology Berkeley, California, USA Algae from a mud puddle Confocal 10X (Objective Lens Magnification) IoD Daniel B. Hoffman & Dr. Jacob Sorensen University of Minnesota Department of Kinesiology Minneapolis, Minnesota, USA Rat skeletal muscle fibers with associated neuromuscular junctions (white) Confocal 40X (Objective Lens Magnification) IoD Dr. Hema Saranya Ilamathi Université du Québec à Trois-Rivières (UQTR) Department of Medical biology Trois-Rivieres, Quebec, Canada Distribution of cellular batteries (mitochondria-yellow), along the transport cables (Tubulin-red, actin-cyan) in human fibroblast Confocal 63X (Objective Lens Magnification) IoD Don Komarechka Komarechka Photography Ltd. Ravna Gora, Varna, Bulgaria Two fluorescing diamonds Fluorescence 10X (Objective Lens Magnification) IoD Charles Krebs Charles Krebs Photography Issaquah, Washington, USA Feeding bryozoan colony zooids. Bryozoans are microscopic aquatic invertebrates that live in colonies. Reflected Light 5X (Objective Lens Magnification) IoD Charles Krebs Charles Krebs Photography Issaquah, Washington, USA Mushroom gills showing sporophores (sporangiophores) Darkfield, Image Stacking 20X (Objective Lens Magnification) IoD Dr. Håkan Kvarnström Bromma, Sweden Amoeba (Arcella) Differential Interference Contrast (DIC) 60X (Objective Lens Magnification) IoD Michael Landgrebe Weissensberg, Bavaria, Germany Fossil diatom Brightfield (inverted) 60X (Objective Lens Magnification) IoD Dr. Francisco Lázaro-Diéguez Albert Einstein College of Medicine Bronx, New York, USA Non-parenchymal liver cells Confocal 63X (Objective Lens Magnification) IoD Dr. Olivier Leroux Ghent University Faculty of Sciences/Faculty of Bioscience Engineering Gent, Oost-Vlaanderen, Belgium Composition of transverse sections of plant organs Fluorescence 20X (Objective Lens Magnification) IoD Dr. Pichaya Lertvilai University of California San Diego Scripps Institution of Oceanography La Jolla, California, USA Coral (Acropora granulosa) fluorescing under blue light Image Stacking, Fluorescence, Darkfield 5X (Objective Lens Magnification) IoD Dr. Yu-Hsiu Liu Academia Sinica Chen-Hui Chen's Lab in the Institute of Cellular and Organismic Biology Nankang, Taipei, Taiwan Palmskin zebrafish larva Confocal 25X (Objective Lens Magnification) IoD Walter Machielsen Rotterdam, Zuid-Holland, Netherlands Buckthorn trichomes Differential Interference Contrast (DIC) 40X (Objective Lens Magnification) IoD Dr. David Maitland Feltwell, Norfolk, United Kingdom Wing scales of the cinnabar moth (Tyria jacobaeae) under ultraviolet light (UV) Fluorescence, Image Stacking 20X (Objective Lens Magnification) IoD Sébastien Malo Saint Lys, Haute-Garonne, France Crab spider (Thomisus onustus) Darkfield, Image Stacking, Reflected Light 6.3X (Objective Lens Magnification) IoD Sébastien Malo Saint Lys, Haute-Garonne, France Geranium (Geraniaceae) stamen covered in pollen Darkfield, Image Stacking, Reflected Light 6.3X (Objective Lens Magnification) IoD Amir Maqbool Higher Education Department Jammu and Kashmir India Department of Zoology Srinagar, Jammu and Kashmir, India Phoretic mites on the leg of a bumblebee Image Stacking 3X (Objective Lens Magnification) IoD Dr. Robert Markus University of Nottingham School of Life Sciences Imaging (SLIM) Nottingham, Nottinghamshire, United Kingdom Actin cytoskeleton of bovine pulmonary epithelial cells Structured Illumination Microscopy (SIM) 63X (Objective Lens Magnification) IoD Dr. Simon Frederik Merz, Dr. Lea Bornemann & Dr. Ewa Patrycja Smajek LaVision BioTec, a Miltenyi Biotec Company Department of Biophysics Bielefeld, North-Rhine Westphalia, Germany Fly (cyan) caught in a Venus flytrap (red) Fluorescence, Light Sheet 2.4X (Objective Lens Magnification) IoD Marek Miś Marek Miś Photography Suwalki, Podlaskie, Poland Leaf epidermis stomata (Stromanthe sp.) Polarized Light 10X (Objective Lens Magnification) IoD Ángel Navarro Gómez Madrid, Spain Mechanosensors in a Venus flytrap Image Stacking 20X (Objective Lens Magnification) IoD Dr. Foo Yong Ng Faculty of Science and Technology, Universiti Kebangsaan Malaysia Department of Biology Science and Biotechnology Bangi, Selangot, Malaysia Moss Image Stacking 2X (Objective Lens Magnification) IoD Dr. Lori O'Brien University of North Carolina at Chapel Hill Department of Cell Biology and Physiology Chapel Hill, North Carolina, USA Embryonic mouse (Mus musculus) kidney showing the collecting duct (blue) and nephron progenitor (yellow) cells Confocal 5X (Objective Lens Magnification) IoD Yusuf Ziya Öztürk TCDD Teknik Müh. Müş. A.Ş. Ankara, Çankaya, Turkey Bee Image Stacking 3.7X (Objective Lens Magnification) IoD Alison Pollack San Anselmo, California, USA Slime mold (Craterium leucocephalum), looking like a beautiful tiny goblet Image Stacking, Reflected Light 10X (Objective Lens Magnification) IoD Alison Pollack San Anselmo, California, USA Slime mold (Diderma tigrinum) Image Stacking, Reflected Light 10X (Objective Lens Magnification) IoD Dr. Andrew M. Posselt University of California, San Francisco (UCSF) Division of Transplant Surgery Mill Valley, California, USA Blue black weevil (Metapocyrtus sp.) Image Stacking 6X (Objective Lens Magnification) IoD Frank Reiser Nassau Community College Department of Biology Garden City, New York, USA Ostracods and algae (Cladophora) Darkfield, Reflected Light 2.5X (Objective Lens Magnification) IoD Dr. Colin Rogers & Dr. Erica Weekman University of Kentucky Sanders Brown Center on Aging Lexington, Kentucky, USA Mouse retina blood vessels (green) astrocytes (red) and microglia (purple) Confocal 20X (Objective Lens Magnification) IoD Jan Rosenboom Rostock, Mecklenburg Vorpommern, Germany Diatoms (single-celled algae) arranged on the head of a pin Image Stacking, Reflected Light 4X (Objective Lens Magnification) IoD Danny Sanchez Mineralien LLC Valley Village, California, USA Golden rutile in quartz Reflected Light, Darkfield 6X (Objective Lens Magnification) IoD Hans Schoofs Uppsala University Department of Immunology, Genetics and Pathology (IGP) Uppsala, Sweden Blood and lymphatic vessels in a mouse diaphragm Confocal 20X (Objective Lens Magnification) IoD Dr. Leo Serra University of Cambridge Sainsbury Laboratory Cambridge, Cambridgeshire, United Kingdom Bindweed (Convolvulus) leaf epidermal cells autofluorescing Confocal 20X (Objective Lens Magnification) IoD Dr. Leo Serra University of Cambridge Sainsbury Laboratory Cambridge, Cambridgeshire, United Kingdom Patterns at the surface of an embryonic leaf of Thale cress (Arabidopsis thaliana) Confocal 20X (Objective Lens Magnification) IoD Stephen Vidman & Dr. Andrea Tedeschi Ohio State University Department of Neuroscience Columbus, Ohio, USA 3D capillary network section of the mammalian brain (dentate gyrus of the hippocampus) Confocal, Deconvolution 10X (Objective Lens Magnification) IoD Priscilla Vieto Bonilla & Brandon Antonio Segura Torres Universidad Nacional del Comahue Department of Biological Sciences San Carlos de Bariloche, Río Negro, Argentina One-week-old Axolotl after hatching Image Stacking, Stereomicroscopy 25X (Objective Lens Magnification) IoD Cagri Yalcin Impressions Microscopiques Amsterdam, Noord Holland, Netherlands Crystals of malonic acid dissolved in ethanol Polarized Light 4X (Objective Lens Magnification) IoD Zhao Zengchao Gaush Meditech Ltd. Hefei, Anhui Province, China Bristle of a millipede (Polyxenidae) Image Stacking 50X (Objective Lens Magnification) IoD Dr. Tong Zhang Northwestern University Biological Imaging Facility Evanston, Illinois, USA Lily (Lilium) anther cross section with pollen Confocal 20X (Objective Lens Magnification) IoD Dr. Tong Zhang Northwestern University Biological Imaging Facility Evanston, Illinois, USA Lily (Lilium) anther cross section with pollen Confocal 20X (Objective Lens Magnification) About Nikon Small World Photomicrography Competition The Nikon Small World Competition is open to anyone with an interest in photography or video. In 2024, the competition will celebrate its 50th anniversary. Ahead of the celebration, participants may upload digital images and videos directly at . For additional information, contact Nikon Small World, Nikon Instruments Inc., 1300 Walt Whitman Road, Melville, NY 11747, USA, or phone (631) 547-8569. Entry forms for Nikon's 2024 Small World and Small World in Motion Competitions are available at About Nikon Instruments Inc. Nikon Instruments Inc. is the US microscopy arm of Nikon Healthcare, a world leader in the development and manufacture of optical and digital imaging technology for biomedical applications. For more information, visit or contact us at 1-800-52-NIKON. 1 Global Prevalence of Diabetic Retinopathy and Projection of Burden through 2045: Systematic Review and Meta-analysis Teo Z.L., Tham Y.-C., Yu M., Chee M.L., Rim T.H., Cheung N., Bikbov M.M., (...), Cheng C.-Y. (2021) Ophthalmology, 128 (11) , pp. 1580-1591. SOURCE Nikon Instruments Inc.