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Letteratura scientifica selezionata sul tema "Geckos"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 30 luglio 2024

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Articoli di riviste sul tema "Geckos"

1

Hsu, Ping Yuan, Liehui Ge, Xiaopeng Li, Alyssa Y. Stark, Chrys Wesdemiotis, Peter H. Niewiarowski e Ali Dhinojwala. "Direct evidence of phospholipids in gecko footprints and spatula–substrate contact interface detected using surface-sensitive spectroscopy". Journal of The Royal Society Interface 9, n. 69 (24 agosto 2011): 657–64. http://dx.doi.org/10.1098/rsif.2011.0370.

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Observers ranging from Aristotle to young children have long marvelled at the ability of geckos to cling to walls and ceilings. Detailed studies have revealed that geckos are ‘sticky’ without the use of glue or suction devices. Instead, a gecko's stickiness derives from van der Waals interactions between proteinaceous hairs called setae and substrate. Here, we present surprising evidence that although geckos do not use glue, a residue is transferred on surfaces as they walk—geckos leave footprints . Using matrix-free nano-assisted laser desorption-ionization mass spectrometry, we identified the residue as phospholipids with phosphocholine head groups. Moreover, interface-sensitive sum-frequency generation spectroscopy revealed predominantly hydrophobic methyl and methylene groups and the complete absence of water at the contact interface between a gecko toe pad and the substrate. The presence of lipids has never been considered in current models of gecko adhesion. Our analysis of gecko footprints and the toe pad–substrate interface has significant consequences for models of gecko adhesion and by extension, the design of synthetic mimics.

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2

Barton, Diane P., Paolo Martelli, William Luk, Xiaocheng Zhu e Shokoofeh Shamsi. "Infection of Hexametra angusticaecoides Chabaud & Brygoo, 1960 (Nematoda: Ascarididae) in a population of captive crested geckoes, Correlophus ciliatus Guichenot (Reptilia: Diplodactylidae)". Parasitology 147, n. 6 (12 febbraio 2020): 673–80. http://dx.doi.org/10.1017/s0031182020000219.

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AbstractHere we report on the infection of captive crested geckos Correlophus ciliatus Guichenot (Reptilia: Diplodactylidae), with adults of the ascaridoid nematode, Hexametra angusticaecoides Chabaud & Brygoo, 1960 (Ascarididae). A population of captive crested geckoes became ill and died within a short period of time. Nematodes were recovered from the crested geckoes examined from within the coelomic cavity, penetrating various organs and migrating through subcutaneous tissues, as well as emerging through the geckos' skin. One gecko was treated with levamisole following surgical excision of nematodes from under the skin; this gecko survived. The potential source of the nematode infection in the captive geckoes is discussed. It is most likely that wild-caught Madagascan mossy geckoes, Uroplatus sikorae Boettger (Reptilia: Gekkonidae), introduced the infection to the colony. Molecular sequences of the nematodes are the first produced for the members of this genus. A redescription of the species and its genetic characterization based on the internal transcribed spacer sequence data is provided, suggesting some of the morphological criteria that have been used in the past to distinguish between Hexametra spp. may have been intraspecific morphological variations.

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Stark, Alyssa Y., e Christopher T. Mitchell. "Stick or Slip: Adhesive Performance of Geckos and Gecko-Inspired Synthetics in Wet Environments". Integrative and Comparative Biology 59, n. 1 (27 aprile 2019): 214–26. http://dx.doi.org/10.1093/icb/icz008.

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Abstract The gecko adhesive system has inspired hundreds of synthetic mimics principally focused on replicating the strong, reversible, and versatile properties of the natural system. For geckos native to the tropics, versatility includes the need to remain attached to substrates that become wet from high humidity and frequent rain. Paradoxically, van der Waals forces, the principal mechanism responsible for gecko adhesion, reduce to zero when two contacting surfaces separate even slightly by entrapped water layers. A series of laboratory studies show that instead of slipping, geckos maintain and even improve their adhesive performance in many wet conditions (i.e., on wet hydrophobic substrates, on humid substrates held at low temperatures). The mechanism for this is not fully clarified, and likely ranges in scale from the chemical and material properties of the gecko’s contact structures called setae (e.g., setae soften and change surface confirmation when exposed to water), to their locomotor biomechanics and decision-making behavior when encountering water on a substrate in their natural environment (e.g., some geckos tend to run faster and stop more frequently on misted substrates than dry). Current work has also focused on applying results from the natural system to gecko-inspired synthetic adhesives, improving their performance in wet conditions. Gecko-inspired synthetic adhesives have also provided a unique opportunity to test hypotheses about the natural system in semi-natural conditions replicated in the laboratory. Despite many detailed studies focused on the role of water and humidity on gecko and gecko-inspired synthetic adhesion, there remains several outstanding questions: (1) what, if any, role does capillary or capillary-like adhesion play on overall adhesive performance of geckos and gecko-inspired synthetics, (2) how do chemical and material changes at the surface and in the bulk of gecko setae and synthetic fibrils change when exposed to water, and what does this mean for adhesive performance, and (3) how much water do geckos encounter in their native environment, and what is their corresponding behavioral response? This review will detail what we know about gecko adhesion in wet environments, and outline the necessary next steps in biological and synthetic system investigations.

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Gao, Xue Shan, Jie Shao, Fu Quan Dai, Cheng Guo Zong e Wen Zeng Guo. "A Gecko-Inspired Robot for Wind Power Tower Inspection". Applied Mechanics and Materials 461 (novembre 2013): 831–37. http://dx.doi.org/10.4028/www.scientific.net/amm.461.831.

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In order to accomplish the task of wind power tower inspection, a heavy-loaded climbing robot inspired by geckos is presented in this paper. The robot not only imitates body’s functions of geckos but also shows a design method. Wind power tower is a conical wall surface and its smallest radius is less than 2m. There will be a great gap when a robot climbing on such wall with small radius. The extraordinary climbing ability of geckos is considered as a remarkable design of nature that is attributed to its soft body, its multi-degree-of-freedom legs, and its strong-adsorbed toes. Focus on the feature of working on such wall surface, gecko’s body, toes and legs are simplified as free joints, magnetic units and redundant tracks respectively, based on the functions of gecko’s limbs and body. The adaptability of the robot is tested by the experiments in laboratory. With the gecko-inspired structure, the robot can climb on the wall surface with minimum 2m in diameter in any direction.

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5

Uetz, Peter, Alex Slavenko, Shai Meiri e Matthew Heinicke. "Gecko diversity: a history of global discovery". Israel Journal of Ecology and Evolution 66, n. 3-4 (6 novembre 2020): 117–25. http://dx.doi.org/10.1163/22244662-bja10003.

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1935 gecko species (and 224 subspecies) were known in December 2019 in seven families and 124 genera. These nearly 2000 species were described by ~950 individuals of whom more than 100 described more than 10 gecko species each. Most gecko species were discovered during the past 40 years. The primary type specimens of all currently recognized geckos (including subspecies) are distributed over 161 collections worldwide, with 20 collections having about two thirds of all primary types. The primary type specimens of about 40 gecko taxa have been lost or unknown. The phylogeny of geckos is well studied, with DNA sequences being available for ~76% of all geckos (compared to ~63% in other reptiles) and morphological characters now being collected in databases. Geographically, geckos occur on five continents and many islands but are most species-rich in Australasia (which also houses the greatest diversity of family-level taxa), Southeast Asia, Africa, Madagascar, and the West Indies. Among countries, Australia has the highest number of geckos (241 species), with India, Madagascar, and Malaysia being the only other countries with more than 100 described species each. As expected, when correcting for land area, countries outside the tropics have fewer geckos.

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Gusli, Tizar, Muhammad Alif Fauzi, Quraisy Zakky, Amir Hamidy e Bambang Irawan. "Maturity and Reproductive Characteristics on Tokay Gecko (Gekko Gecko Linnaeus, 1758) From Java". Jurnal Biologi Indonesia 20, n. 1 (2024): 9–17. http://dx.doi.org/10.47349/jbi/20012024/9.

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One of the reptiles that massively exploited and traded for export commodities in Indonesia is the house gecko (Gekko gecko). Uncontrolled exploitation possibly threatened its wild population. Currently, there needs to be more biological information regarding this species. Thus, a biological approach is required to support a sustainable harvesting program, primarily through reproductive biology approaches. This study provided information about the minimum size for mature individuals of both sexes. We measured morphological characters and examined reproductive system of 136 males and 324 females from the legal processing house Gekko gecko. Our results show that males reproduce at a minimum SVL of 134,09 ± 22,89 mm, while females are 121.21 ± 8.85 mm. There is a correlation between SVL and TL in male and female geckos. Significant differences in the length and width of testes were observed between mature and immature geckos (p<0.05). A relationship was found between SVL and the volume of the right and left testes in mature male geckos, but it was not observed in immature geckos. Significant differences in the volume of the right and left testes were also found between mature and immature male geckos (p<0.05). In female geckos, significant differences in follicle length and width were observed between mature and immature individuals (p<0.05). Additionally, differences in oviduct width were found between mature and immature female geckos (p<0.05). There is a correlation between SVL and follicle length in the virgin and Type 1 categories, while a correlation between SVL and follicle width was only found in Type 1 geckos. An asymmetry pattern in follicles was also discovered in female geckos.This finding can contribute to formulate recommendation for sustain harvest-size of Gekko gecko in Indonesia.

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Suwatik, Suwatik, Nenden Sri Wahyuni, Santi Mulyawati, Mulik Siti Nur Rohmah, Rr Indira Dewi Anggraeni, Raflen Ari Gerungan e Diki Diki. "Preliminary Study of Common House Gecko (Cosymbotus platyurus) Density in Java Island". International Journal of Research in Community Services 2, n. 4 (5 ottobre 2021): 142–49. http://dx.doi.org/10.46336/ijrcs.v2i4.226.

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Common house gecko (Cosymbotus platyurus) is the most abundant house gecko species in Indonesia. The geckos live in home yard, garden, and in homes. It is part of food chain in its habitat, as its preys include cockroaches, flies, and termites. Previous studies found that this gecko are not found in mountainous area in West Java. In this study, the researchers observe population density of common house geckos in various types of habitats (houses and parks) with their home territory. The methods used were direct survey methods followed by literature study. The study is conducted in Java island (Jakarta, Tangerang, Bandung, Bogor, Sleman). Preliminary result of this study is house geckos are very active at night, because of the effect of light produced by lights that attract the attention of insects, gecko food.

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Cahyani, Ni Kadek Dita, Kadek Andina Widiastuti, Muhammad Fakhri Fauzan, Quraisy Zakky, Ibnu Hibban Hartono, Dimas Bayu Nur Ramadhan, Awal Riyanto e Amir Hamidy. "kay Gecko (Gekko gecko) in Bali Province, Indonesia". Jurnal Biologi Indonesia 19, n. 2 (2023): 125–33. http://dx.doi.org/10.47349/jbi/19022023/125.

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The tokay gecko (Gekko gecko) is known to be one of the species that plays an important role in the ecosystem, especially in controlling pest populations (locusts, mosquitoes, crickets and moths). Tokay geckos also have a high need for medical care purposes and pets. verexploitation and territorial conversion affect tokay gecko populations. this research to conduct a survey and extrapolation of the gecko population in Bali province. The survey was done through a visual survey of dating with three different methods; face-to-face video interview and meeting (IDVE), direct eye contact (DVE) and habitat survey (HS). The survey was conducted in nine districts in Bali from December 2021 to January 2022 with a total of 20 survey points. The total sample area for this study is 56.84 hectare (ha) with 842 individuals of tokay geckos were recorded during the survey. Out of a total of 578,006 hectares area of the province of Bali, about 54% of the total area is a potential area for tokay gecko habitat. The estimated number of tokay geckos in Bali province from this study is 4 million individuals. Result habitat preferences of tokay geckos in Bali province in this study are valuable baseline data for policy producer in determining tokay gecko catch quota.

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Song, Yi, Zhendong Dai, Zhouyi Wang e Robert J. Full. "Role of multiple, adjustable toes in distributed control shown by sideways wall-running in geckos". Proceedings of the Royal Society B: Biological Sciences 287, n. 1926 (6 maggio 2020): 20200123. http://dx.doi.org/10.1098/rspb.2020.0123.

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Remarkable progress has been made characterizing one of nature's most integrated, hierarchical structures––the fibrillar adhesive system of geckos. Nonetheless, we lack an understanding of how multiple toes coordinate to facilitate geckos' acrobatic locomotion. Here, we tested the control function of gecko toes by running them on vertical substrates varying in orientation, friction and roughness. Sideways wall-running geckos realigned the toes of their top feet upward to resist gravity. Toe contact area was not compromised, but redistributed. Geckos aligned all toes upward to resist slipping when encountering low-friction patches during sideways wall-running. Negotiation of intermittent slippery strips showed an increased contribution of particular toes to compensate for toes that lost adhesion. Increasing substrate roughness using discrete rods perpendicular to sideways locomotion resulted in geckos bending and/or rotating toes to conform to and even grasp the rods, with potential forces more than five times body weight. Geckos increase their effectiveness of manoeuvrability in demanding environments by taking advantage of the distributed control afforded by multiple toes. Our findings provide insight on biological attachment and offer inspiration to advance gecko-inspired robotics and other biomimetic applications.

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Cord M, Brundage, Atamian Seza e Vasquez Jessica. "Juvenile Crested Gecko (Correlophus ciliates) Growth Rate on a Calcium-dusted Dubia Roach and Papaya Diet Versus a Commercial Diet". International Journal of Veterinary Science and Research 10, n. 3 (12 luglio 2024): 029–33. http://dx.doi.org/10.17352/ijvsr.000147.

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Crested Geckos (Correlophus ciliatus) are common in the United States pet trade despite limited information on their specific physiology and nutrition. Suboptimal husbandry may be detrimental to animal growth, quality of life, and lifespan. Commercial diets are available; however, many hobbyists prefer feeding calcium-dusted fruit and insect alternatives. There is a general lack of published literature evaluating the effect of either option on gecko development. A food trial was conducted for 5 weeks on juvenile Crested Geckos fed a diet of calcium-dusted Dubia Roaches and fresh papaya (n = 30) or a commercial diet (Pangea Crested Gecko Diet; n = 30). Body length and weight were measured weekly on their fourth feeding day. Animals on both diets grew in length and weight over the 5-week feeding trial (p < 0.05) however the roach/papaya-fed geckos experienced almost twice the weight gain 0.81 g (24.35%) than the commercially fed geckos (0.42 g) and (13.07 %; p = 0.002). No differences in behavior of activity were noted between either diet. These results suggest that a calcium-dusted Dubia Roach and papaya diet may be more advantageous than a commercial diet during Crested Gecko juvenile development.

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Tesi sul tema "Geckos"

1

Ge, Liehui. "Synthetic Gecko Adhesives and Adhesion in Geckos". University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1294161826.

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Lopez, Stephanie M. "Effects of Digital Hyperextension on Self-Cleaning in the Tokay Gecko (Gekko gecko)". Akron, OH : University of Akron, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=akron1248642491.

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Thesis (M.S.)--University of Akron, Dept. of Biology, 2009.
"August, 2009." Title from electronic thesis title page (viewed 10/14/2009) Advisor, Peter Niewiarowski; Co-Advisors, Todd Blackledge, Ali Dhinojwala; Department Chair, Monte Turner; Dean of the College, Chand Midha; Dean of the Graduate School, George R. Newkome. Includes bibliographical references.

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Snyder, Joshua P. "The autecology of Rhacodactylus auriculatus a natural history study of gargoyle geckos /". Click here for download, 2007. http://proquest.umi.com/pqdweb?did=1331400641&sid=1&Fmt=2&clientId=3260&RQT=309&VName=PQD.

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Cole, Nicholas Carl. "The ecological impact of the invasive house gecko Hemidactylus frenatus upon endemic Mauritian geckos". Thesis, University of Bristol, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419134.

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Moyer, Robert Walter. "Comparative morphological and biochemical study of the pineal complex in geckos /". Title page, abstract and contents only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phm938.pdf.

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Geneva, Anthony Joseph. "A phylogeographic analysis of Bavayia cf. crassicollis". Click here for download, 2007. http://proquest.umi.com/pqdweb?did=1428838771&sid=1&Fmt=2&clientId=3260&RQT=309&VName=PQD.

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Holmes, Scott. "Analysis of tooth replacement in adult leopard geckos". Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44626.

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Though most dentate vertebrates replace their teeth at least once in the course of their lives, the process of tooth replacement is poorly understood. This is mainly because the major tooth development model is the mouse which only has one generation of teeth. Our previous work suggested that tooth renewal in geckos might involve dental epithelial stem cells and that these putative stem cells become transit- amplifying cells when exposed to canonical WNTs. Here we further investigate this idea using adult leopard geckos (Eublepharis macularius). To further previous findings from our lab that the dental apparatus is a WNT responsive tissue we perturbed the WNT pathway by agonist and antagonist organ cultures of oral tissue explants. BIO stimulated proliferation at an intermediate concentration of 20 μM but not at higher or lower concentrations. This suggests that in vivo, cells are responding to gradients of WNT activity. We also looked at associated BMP and FGF pathways via in situ histology and organ culture manipulation respectively and found alternating patterns of gene expression. We then mapped areas of high canonical WNT signaling and found that nuclear staining for phospho beta catenin was principally found in the outer enamel epithelium and successional lamina. We moved to an in vivo strategy to allow for better tissue survival. Palatal injections of LiCl or the control reagent NaCl were delivered to the base of the maxillary teeth. We found that LiCl increased proliferation in the successional lamina and cervical loops, areas that normally have higher proliferation. We conclude that certain regions of the dental epithelium are sensitive to change in canonical WNT signaling and that this signaling is potentially kept to a localized region via BMP inhibition of the WNT pathway. Regions of the dental lamina that contain putative stem cells may require signals in addition to WNTs to stimulate the formation of transit amplifying cells. Future work will further elucidate the many signaling cascades required for tooth succession to occur.

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Buckland, Jack Dany Steeves. "Status, ecology and conservation of endemic geckos in Mauritius". Thesis, University of Bristol, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.653090.

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In the past 400 years, there has been a drastic decline in the number of endemic species on mainland Mauritius, with the island losing 69% of its original reptile community. Of 17 endemic species, only five mostly Phelsuma species survived the human mediated disturbances on mainland Mauritius. These remaining arboreal endemic geckos still play important ecological roles in the Mauritian ecosystem. However, habitat fragmentation and introduction of invasive species have increased the threats to these endemic geckos. The recent invasion of the bigger Phelsuma grandis (giant Madagascar day gecko) has increased the threats posed to the existence of endemic geckos, while habitat loss and fragmentation is also playing a major role in gecko decline, particularly for Phelsuma guimbeaui (lowland forest day gecko). In this thesis, I studied the ecological effects of P. grandis on endemic geckos at a landscape and local scale using species .distribution and binomial mixture models. I also designed markers from microsatellite and mitochondrial DNA to research the population. genetics of P. guimbeaui in response to habitat fragmentation. Finally, I explored habitat selection of P. guimbeaui to find suita~le sites for potential translocations. First, I showed that P. grandis shared many characteristics of an invasive species and could persist in a relatively large range of environmental conditions. The results highlight that P. grandis and endemic gecko distributions can overlap. Where P .. grandis has invaded areas occupied by endemic geckos, the abundance of the Mauritian species has declined by an average of 89%. This study provides strong evidence that P. grandis and endemic geckos are unlikely to coexist in sympatry. Second, I designed arid amplified 44 markers from an enriched-microsatellite genomic library. They were tested on ten subpopulations and 20 were selected to examine the population genetics of the fragmented population of P. guimbeaui. Here, the microsatellite results suggested that most subpopulations were genetically different, with low effective population sizes and no migrations, while simulations showed that the different subpopulations were at high risks of losing genetic diversity and extinction. Mitochondrial DNA showed that the fragmented subpopulations used to be part of a panmictic population. Using the findings of this genetic study, 12 subpopulations were identified as viable and 18 subpopulations were at high risk. Third, I showed that P. guimbeaui males had a larger home range than females and males overlap more with females than males and geckos selected habitats with higher plant diversity, with trees that had taller and larger trunks and a higher cavity density. Adult geckos selected different habitat features compared to sub-adults and juveniles. The findings of this research were synthesised into a review to formulate the conservation assessment of the endemic geckos on mainland Mauritius.

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DAME, ELIZABETH. "BEHAVIORAL MECHANISMS OF INVASION AND DISPLACEMENT IN PACIFIC ISLAND GECKOS". University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1100810530.

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Dame, Elizabeth. "Behavioral mechnaisms of invasion and displacement in Pacific Island Geckos". Cincinnati, Ohio : University of Cincinnati, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1100810530.

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Libri sul tema "Geckos"

1

Riggs, Kate. Geckos. Mankato, MN: Creative Digital, an imprint of the Creative Company, 2015.

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Gish, Melissa. Geckos. Mankato, MN: Creative Education, 2015.

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Mara, Wil. Geckos. Mankato, MN: Capstone Press, 1996.

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Hernandez-Divers, Sonia. Geckos. 2^a ed. Chicago, Ill: Heinemann Library, 2010.

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Raum, Elizabeth. Geckos. Mankato, MN: Amicus High Interest, 2015.

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Hernandez-Divers, Sonia. Geckos. 2^a ed. Chicago, Ill: Heinemann Library, 2010.

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Vosjoli, Philippe De. The leopard gecko manual. Vista, Calif: Advanced Vivarium Systems, 2004.

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Miller, Jake. The leopard gecko. New York: PowerKids Press, 2003.

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Klavir, Josh. Proper care and maintenance of leopard geckos. San Luis Obispo, CA: Zoo Med Laboratories, 2001.

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Gerold, Merker, a cura di. Leopard geckos: A complete guide to eublepharine geckos. Neptune City, NJ: T.F.H. Publications, Inc., 2006.

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Capitoli di libri sul tema "Geckos"

1

Manley, Geoffrey A. "The Hearing of Geckos". In Peripheral Hearing Mechanisms in Reptiles and Birds, 151–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-83615-2_10.

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Wiggans, K. Tomo, e Bret A. Moore. "Ophthalmology of Gekkota: Geckos". In Wild and Exotic Animal Ophthalmology, 167–81. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-71302-7_10.

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Hiller, Uwe N. "Water Repellence in Gecko Skin: How Do Geckos Keep Clean?" In Functional Surfaces in Biology, 47–53. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-1-4020-6697-9_4.

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Mochrie, Simon, e Claudia De Grandi. "Energy: Work, Geckos, and ATP". In Introductory Physics for the Life Sciences, 131–84. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-05808-0_3.

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Call, Josep. "On Space Geckos and Urban Apes". In Diversity in Harmony - Insights from Psychology, 42–63. Chichester, UK: John Wiley & Sons, Ltd, 2018. http://dx.doi.org/10.1002/9781119362081.ch3.

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Manley, Geoffrey A., Christine Köppl e Ulrike J. Sienknecht. "The Remarkable Ears of Geckos and Pygopods". In Insights from Comparative Hearing Research, 111–31. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/2506_2013_27.

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Böcher, Wolfgang. "Geschichten von Geckos, Tupajas und der großen Politik". In Natur, Wissenschaft und Ganzheit, 22–39. Wiesbaden: VS Verlag für Sozialwissenschaften, 1992. http://dx.doi.org/10.1007/978-3-322-97002-2_2.

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Landová, Eva, Petra Hnidová, Aleksandra Chomik, Jitka Jančúchová-Lásková, Petra Frýdlová e Daniel Frynta. "Specific Antipredator Response of Leopard Geckos (Eublepharis macularius) to the Smell of Snake Exuvia". In Chemical Signals in Vertebrates 15, 399–418. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-35159-4_19.

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Russell, Anthony P., e Austin M. Garner. "Solutions to a Sticky Problem: Convergence of the Adhesive Systems of Geckos and Anoles (Reptilia: Squamata)". In Convergent Evolution, 221–55. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-11441-0_9.

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Lahav, Amit. "Gecko". In The Twenty-First Century Performance Reader, 215–20. Abingdon, Oxon; NewYork, NY: Routledge, 2019.: Routledge, 2019. http://dx.doi.org/10.4324/9780429283956-28.

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Atti di convegni sul tema "Geckos"

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Leitner, Jakob, e Michael Haller. "Geckos". In the 2011 annual conference. New York, New York, USA: ACM Press, 2011. http://dx.doi.org/10.1145/1978942.1979385.

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Qing-xuan, Jia, Liao Jun, Sun Han-xu, Song Jin-zhou e Cheng Tao. "Research on Theoretical Models of Synthetic Geckos' Adhesion Technology". In 2006 IEEE Conference on Robotics, Automation and Mechatronics. IEEE, 2006. http://dx.doi.org/10.1109/ramech.2006.252707.

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BERGEVIN, CHRISTOPHER, DENNIS M. FREEMAN e CHRISTOPHER A. SHERA. "A COMPARATIVE STUDY OF EVOKED OTOACOUSTIC EMISSIONS IN GECKOS AND HUMANS". In Proceedings of the Ninth International Symposium. WORLD SCIENTIFIC, 2006. http://dx.doi.org/10.1142/9789812773456_0064.

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Ayala, Naomi Isabel López, Jose Carlos Aguilar Altamirano e Alicia María Reyes Duke. "GarRobot: Design, Construction and Control of a Teleoperated Climbing Robot Inspired by Geckos". In 2023 8th International Conference on Control and Robotics Engineering (ICCRE). IEEE, 2023. http://dx.doi.org/10.1109/iccre57112.2023.10155609.

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Lima, Victória Wetzel Oliveira, Nicoly Milena HUMAI e Larissa Aparecida Krul. "PROTOCOLO DE TRATAMENTO DE IMPACTAÇÂO INTESTINAL POR CORPO ESTRANHO EM EUBLEPHARIS MACULARIUS". In Semana Online Científica de Veterinária. CONGRESSE.ME, 2021. http://dx.doi.org/10.54265/rwrw5430.

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Abstract (sommario):

Devido à popularização de Geckos como pets e a falta de informação dos tutores, a incidência de problemas relacionados ao manejo sanitário e alimentar tem aumentado. Poucos relatos foram descritos sobre a ingestão de corpos estranhos e os seus devidos tratamentos em Geckos, o que torna relevante a descrição deste caso para um maior conhecimento acerca do manejo e das técnicas terapêuticas nessa espécie. Um Gecko Leopardo, sem sexo definido, com 7 meses de idade, pesando 29 gramas, vivia em um terrário, com papel toalha como substrato, condições de temperatura (25-30ºC), sem fonte de luz e umidade (50%), alimentado com presas vivas suplementadas com cálcio e vitamina D3. Segundo a tutora, o animal encontrava-se sem comer e com ausência de fezes a 2 dias. No exame físico apresentava-se apático e cavidade celómica encontrava-se dilatada com presença de conteúdo nodular firme palpável na região caudolateral. O paciente foi internado e submetido a tratamento médico com dose inicial de Lactulona de 0,5 ml/kg SID, Metroclopramida oral 0,7ml/kg SID, banho morno por 15 minutos TID. No quarto dia de internação foi adicionado a massagem com vibrador TID, aumentado para 230 ml/kg a dose da Lactulona e realizado fluidoterapia com Ringer Lactato na dose de 10% do peso do paciente. Em menos de 24 horas, após as mudanças no tratamento, o paciente defecou. No dia seguinte foi realizado exame radiográfico e foi adicionado cálcio oral na dose de 37ml/kg. No sétimo dia foi realizado a lactulona BID. No oitavo dia o paciente defecou, foi identificado papel toalha como corpo estranho. O paciente alimentou-se sozinho e recebeu alta no décimo dia após a realização de outro exame radiográfico. Os exames radiograficos foram realizados para diagnóstico e acompanhamento clínico do paciente no qual o primeiro havia conteúdo heterogênio em região de estômago e intestino. Nos dias seguintes houve diminuição significativa do conteúdo intraluminal de alças intestinais. A impactação por corpo estranho é um problema comum na clínica de répteis por estar diretamente relacionada ao manejo ambiental inadequado e deficiência nutricional destes animais. A ingestão de substrato utilizado no terrário é considerada uma das principais causas de estase no trato gastrointestinal, e consequentemente ocasionar problemas mais graves de quadros de obstrução (1). O tratamento medicamentoso juntamente com banho de água morna e a realização de massagem com vibrador foram eficazes para a eliminação do corpo estranho sem intervenção cirúrgica. Utilização de parelho vibratório em relato de constipação de Dragão-Barbudo também se mostrou eficaz no tratamento (2). Referências bibliográficas: 1. Mader DR. Reptile Medicine and Surgery. 2nd Ed. Saunders Elsevier; 2006. 2. Bastos AJB. Protocolo de tratamento de constipação em DragãoBarbudo (Pogona vitticeps) – Relato de caso. I Mostra Científica Dorothy Stang; 2019. PALAVRAS-CHAVE: constipação, répteis, estase

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Sharikov, V. S., I. O. Krutov e A. V. Golubtsov. "ANALYSIS OF THE EFFECT OF HELMINTHIC INVASION ON THE BODY OF GECKOS AND FEATURES OF THEIR TREATMENT". In Современные проблемы общей и прикладной паразитологии. Воронеж: Цифровая полиграфия, 2022. http://dx.doi.org/10.57007/9785907283979_2022_16_186-193.

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Jeng, Yeau-Ren, Chien-Ping Mao, Tsung-Ting Lin e Dar-Bin Shieh. "Contact Mechanics Study in Biotribology: A Tissue Engineering Example". In ASME/STLE 2007 International Joint Tribology Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ijtc2007-44141.

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The study of biotribology attracts increasingly attention because it holds great promise to have profound impact on the way people live their lives. This study presents two cases of contact mechanics study on tissue engineering: one in soft tissue and the other one in hard tissue. In the study of soft tissue, we conducted a theoretical investigation into the effect of particle on the adhesion of a biological nanostructure system. Based on a three-body contact model and JKR theory our results show that geckos’ spatulas provides robust adhesions even with trapped particles in the interface. In the case of hard tissue, we utilized nanoindentation technique to characterize the mechanical property and tribology behavior of calcium fluoride-like deposits on human tooth. The low nanohardness and high nano-wear depth characteristics of the surface deposits identified in this study account for the natural loss of the surface deposits days or weeks after topical fluoride treatment as a result of daily brushing and mastication.

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Travers, Matthew, e Howie Choset. "Optimal Gait Design for Systems With Drift on SO(3)". In ASME 2013 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/dscc2013-3946.

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Geckos that jump, cats that fall, and satellites that are inertially controlled fundamentally locomote in the same way. These systems are bodies in free flight that actively reorientate under the influence of conservation of angular momentum. We refer to such bodies as inertial systems. This work presents a novel control method for inertial systems with drift that combines geometric methods and computational control. In previous work, which focused on inertial systems starting from rest, a set of visual tools was developed that readily allowed on to design gaits. A key insight of this work was deriving coordinates, called minimum perturbation coordinates, which allowed the visual tools to be applied to the design of a wide range of motions. This paper draws upon the same insight to show that it is possible to approximately analyze the kinematic and dynamic contributions to net motion independently. This approach is novel because it uses geometric tools to support computational reduction in automatic gait generation on three-dimensional spaces.

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Ghane, Millad, Sunita Chandrasekaran e Margaret S. Cheung. "Gecko". In the 10th International Workshop. New York, New York, USA: ACM Press, 2019. http://dx.doi.org/10.1145/3303084.3309489.

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Wong, Elizabeth. "Kungfu gecko". In ACM SIGGRAPH 2006 Computer animation festival. New York, New York, USA: ACM Press, 2006. http://dx.doi.org/10.1145/1179196.1179247.

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Rapporti di organizzazioni sul tema "Geckos"

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Branson, Eric D., Seema Singh, David Bruce Burckel, Hongyou Fan, Jack E. Houston, C. Jeffrey Brinker e Patrick Johnson. Self-Cleaning Synthetic Adhesive Surfaces Mimicking Tokay Geckos. Office of Scientific and Technical Information (OSTI), novembre 2006. http://dx.doi.org/10.2172/1137215.

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Rachel Schwarz, Rachel Schwarz. Where should I go? Habitat preference of a Mediterranean gecko. Experiment, agosto 2016. http://dx.doi.org/10.18258/7670.

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Savidge, Julie A., Peter J. Schupp e Bjorn Lardner. Purifying and Testing Gecko Skin Compounds, a Promising Attractant for Small Brown Treesnakes. Fort Belvoir, VA: Defense Technical Information Center, marzo 2012. http://dx.doi.org/10.21236/ada578902.

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4

Mateo Davila, Mateo Davila. How does the struggle between sexual selection and natural selection drive the coloration of a tropical gecko? Experiment, marzo 2019. http://dx.doi.org/10.18258/13199.

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Jardine, Kolby. Green Ocean Amazon 2014/15 Terrestrial Ecosystem Project (Geco) Field Campaign Report. Office of Scientific and Technical Information (OSTI), giugno 2016. http://dx.doi.org/10.2172/1261177.

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Jardine, Kolby. Green Ocean Amazon 2014/15 Terrestrial Ecosystem Project (Geco) Field Campaign Report. Office of Scientific and Technical Information (OSTI), giugno 2016. http://dx.doi.org/10.2172/1834753.

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