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Philip D Perkins
The Madagascar fauna of the beetle family Hydraenidae is comprehensively revised, based on the study and databasing of 6,949 specimens. New collection records are provided for 11 previously described species, and 95 new species are described. Three new subgenera of Hydraena, viz. H. (Micromadraena), H. (Monomadraena), and H. (Dnahydnaedna) are described, and several new species groups of Hydraena are diagnosed. Two new genera in the tribe Madagastrini are described: Menomadraena and Trinomadraena. The Malagasy hydraenid fauna now comprises 106 species arrayed in the following nine genera: Aulacochthebius (2), Hydraena (65), Limnebius (10), Madagaster (8), Menomadraena (6), Ochthebius (1), Protozantaena (5), Sicilicula (8), and Trinomadraena (1)...
November 3, 2017: Zootaxa
Ralph W Holzenthal, Blanca Ríos-Touma, Ernesto Rázuri-Gonzales
The genus Contulma Flint (Trichoptera: Anomalopsychidae) is composed mostly of regionally endemic species occurring above 2,000 m, with a few more widespread species and some that are found at lower elevations. Adults of three new species of Contulma are described and illustrated from the Andes of Ecuador, Contulma lina , new species, Contulma quito , new species, and Contulma sangay , new species. These species are similar to previously described species from the region, including C. paluguillensis, C. nevada , and C...
2017: PeerJ
Andrew T Taylor, Monica Papeş, James M Long
Fluvial fishes face increased imperilment from anthropogenic activities, but the specific factors contributing most to range declines are often poorly understood. For example, the range of the fluvial-specialist shoal bass (Micropterus cataractae) continues to decrease, yet how perceived threats have contributed to range loss is largely unknown. We used species distribution models to determine which factors contributed most to shoal bass range loss. We estimated a potential distribution based on natural abiotic factors and a series of currently occupied distributions that incorporated variables characterizing land cover, non-native species, and river fragmentation intensity (no fragmentation, dams only, and dams and large impoundments)...
February 2018: Conservation Biology: the Journal of the Society for Conservation Biology
Maria Seifried, Helmut Höh
Background The collection of pre-, peri- and postoperative data took place between 2005 and 2008, based on a contract between the social insurance company, AOK Mecklenburg-Vorpommern, and the outpatient cataract surgeons/centers in Mecklenburg-Vorpommern, Germany. The purpose of the contract was the monitoring of quality of cataract surgery in the outpatient healthcare system. Materials and Methods We analysed 2952 datasets of 2952 eyes, remaining after exclusion of 109 datasets because of lack of plausibility and missing data (initially 3058 eyes with surgery in our centre)...
August 2017: Klinische Monatsblätter Für Augenheilkunde
Robert B Merritt, Jean F Rogers, Brenda J Kurz
No abstract text is available yet for this article.
March 1978: Evolution; International Journal of Organic Evolution
Erika Crispo, Haley R Tunna, Noreen Hussain, Silvia S Rodriguez, Scott A Pavey, Leland J Jackson, Sean M Rogers
Populations in upstream versus downstream river locations can be exposed to vastly different environmental and ecological conditions and can thus harbor different genetic resources due to selection and neutral processes. An interesting question is how upstream-downstream directionality in rivers affects the evolution of immune response genes. We used next-generation amplicon sequencing to identify eight alleles of the major histocompatibility complex (MHC) class II β exon 2 in the cyprinid longnose dace ( Rhinichthys cataractae ) from three rivers in Alberta, upstream and downstream of municipal and agricultural areas along contaminant gradients...
May 2017: Ecology and Evolution
Joseph M Culp, Nancy E Glozier, Garry J Scrimgeour
Mayfly larvae of Paraleptophlebia heteronea (McDunnough) had two antipredator responses to a nocturnal fish predator (Rhinichthys cataractae (Valenciennes)): flight into the drift and retreat into interstitial crevices. Drift rates of Paraleptophlebia abruptly increased by 30 fold when fish were actively foraging in the laboratory streams but, even before fish were removed, drift began returning to control levels because larvae settled to the substrate and moved to areas of low risk beneath stones. This drifting response was used as an immediate escape behavior which likely decreases risk of capture from predators which forage actively at night...
April 1991: Oecologia
Peter B LaRochelle, Ronald V Dimock
The occurrence and specificity of host recognition behavior of adult and nymphal Unionicola formosa and the capability of adult mites to recolonize various mussel species were examined. Adult U. formosa aggregated on excised tissue from their host mussel, Anodonta imbecilis, in preference to that of two other species of mussels. Nymphs also exhibited an aggregation response to host tissue. A radioisotope ((51)Cr) technique was used to monitor the recolonization behavior of U. formosa. Adult female mites preferentially re-entered A...
March 1981: Oecologia
Toshihisa Nomura, Tetsuya Sakurai, Yuriko Osakabe, Keishi Osakabe, Hitoshi Sakakibara
Targeted genome modification by RNA-guided nucleases derived from the clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated nuclease 9 (Cas9) system has seen rapid development in many organisms, including several plant species. In the present study, we succeeded in introducing the CRISPR/Cas9 system into the non-model organism Scopelophila cataractae, a moss that exhibits heavy metal tolerance, and the model organism Physcomitrella patens Utilizing the process by which moss plants regenerate from protoplasts, we conducted targeted mutagenesis by expression of single-chain guide RNA (sgRNA) and Cas9 in protoplasts...
December 2016: Plant & Cell Physiology
D R Dockery, T E McMahon, K M Kappenman, M Blank
The swimming performance of longnose dace Rhinichthys cataractae, the most widely distributed minnow (Cyprinidae) in North America, was assessed in relation to potential passage barriers. The study estimated passage success, maximum ascent distances and maximum sprint speed in an open-channel flume over a range of water velocities and temperatures (10·7, 15·3 and 19·3° C). Rhinichthys cataractae had high passage success (95%) in a 9·2 m flume section at mean test velocities of 39 and 64 cm s(-1) , but success rate dropped to 66% at 78 cm s(-1) ...
March 2017: Journal of Fish Biology
Christoph von Sonnleithner, Daniel Pilger, David Homburg, Tobias Brockmann, Necip Torun, Eckart Bertelmann
PURPOSE: To analyze the impact of different incision sizes for phacoemulsification on corneal higher-order aberrations (HOA). METHODS: Patients seeking cataract surgery were randomly assigned to one of the following groups: 1.4 mm with biaxial microincision phacoemulsification (25 eyes), 1.8 mm with coaxial phacoemulsification (27 eyes), and 2.2 mm with coaxial phacoemulsification (62 eyes). Inclusion criteria were a minimum age of 18 years and uncomplicated cataract...
June 26, 2017: European Journal of Ophthalmology
Amir Hadayer, Ahmet Özkök, Henry J Kaplan, Shlomit Schaal
PURPOSE: To describe clinically and pathologically the rare occurrence of calcification and osseous metaplasia in lens remnants in both eyes of a patient with pseudophakic chronic uveitis. METHODS: We performed 25-gauge pars plana vitrectomy, removal of dislocated intraocular lens (IOL), and secondary IOL fixation in the left eye. A similar procedure was performed in the right eye with 27-gauge pars plana vitrectomy. RESULTS: The postoperative visual acuities were 20/30 OD and 20/125 OS...
2018: Ocular Immunology and Inflammation
Warut Siriwut, Gregory D Edgecombe, Chirasak Sutcharit, Piyoros Tongkerd, Somsak Panha
The centipede genus Scolopendra in mainland Southeast Asia is reviewed taxonomically based on morphological characters, informed by a molecular phylogenetic analysis using sequences from three mitochondrial and nuclear genes (COI, 16S rRNA and 28S rRNA). Eight nominal species of Scolopendra, namely Scolopendra morsitans Linnaeus, 1758, Scolopendra subspinipes Leach, 1816, Scolopendra dehaani Brandt, 1840, Scolopendra multidens Newport, 1844, Scolopendra calcarata Porat, 1876, Scolopendra japonica Koch, 1878, Scolopendra pinguis Pocock, 1891, and Scolopendra dawydoffi Kronmüller, 2012, are redescribed together with some revision of type materials...
2016: ZooKeys
G A Arveladze, N M Geladze, T B Sanikidze, N S Khachapuridze, S Z Bakhtadze
The aim of the study was to detect the role of lactate acidosis, also to find the share of mitochondrial insufficiency in development of various neurologic syndromes in children and adolescents. The detection of cellular energetic metabolism and acid based imbalance is also important for finding the specific method of management. We have studied 200 patients with various degree of neurodevelopment delay with epilepsy and epileptic syndromes, headache, vertigo, early strokes, floppy infant syndrome, atrophy of ophthalmic nerve, cataracta, neurosensory deafness, systemic myopathy, cerebral palsy...
February 2015: Georgian Medical News
Toshihisa Nomura, Misao Itouga, Mikiko Kojima, Yukari Kato, Hitoshi Sakakibara, Seiichiro Hasezawa
The copper (Cu) moss Scopelophila cataractae (Mitt.) Broth. is often found in Cu-enriched environments, but it cannot flourish under normal conditions in nature. Excess Cu is toxic to almost all plants, and therefore how this moss species thrives in regions with high Cu concentration remains unknown. In this study, we investigated the effect of Cu on gemma germination and protonemal development in S. cataractae. A high concentration of Cu (up to 800 µM) did not affect gemma germination. In the protonemal stage, a low concentration of Cu promoted protonemal gemma formation, which is the main strategy adopted by S...
March 2015: Journal of Experimental Botany
Nikita J Kluge
Larvae, subimagoes and imagoes of both sexes reared from larvae of a new species Choroterpes (Dilatognathus) bogori sp.n. from Java are described. Formerly this species was described by Ulmer (1939) under the wrong name "Choroterpides exiguus (Eaton 1884)". In all species of Dilatognathus, maxilla of last instar larva has the same structure, but in Ch. (D.) cataractae its structure is different in previous instars, being different in males and females. 
2014: Zootaxa
D M Stănilă, Adriana Stănilă, Elena Mihai, N G Sîrbu, A L Stupariu
INTRODUCTION: Cataracta is the more common surgical diesease of the eye. The removal of the cataract is done my phacoemulsification. PURPOSE: To evaluate the effect of phacoemulsifcation on the cornea. MATERIAL AND METHOD: We have studied 80 patients with cataract that underwent cataract surgery by phacoemulsification. We measured the corneal thickness and the number of endothelial cell before and after the surgery. REZULTS AND DISCUSSIONS: Corneal thickness grew with 3% and the number of endothelial cells decresed with 13%...
2013: Oftalmologia
Joyce S Evans, Leland J Jackson, Hamid R Habibi, Michael G Ikonomou
We sampled an abundant, native minnow (Longnose dace-Rhinichthys cataractae) throughout the Oldman River, Alberta, to determine physiological responses and possible population level consequences from exposure to compounds with hormone-like activity. Sex ratios varied between sites, were female-biased, and ranged from just over 50% to almost 90%. Histological examination of gonads revealed that at the sites with >60% females in the adult population, there was up to 38% occurrence of intersex gonads in fish identified through visual examination of the gonads as male...
2012: Scientifica
Mir Zaman, Afzal Qadir, Maooz, Irfanullah Shah, Ishfaq-ur-Rehman, Tariq Farooq Babar
BACKGROUND: Cataract surgery is constantly evolving and various procedures having their merits and demerits are practiced by ophthalmologists all over the world. The objective of this study was to evaluate the safety, efficacy, visual outcome and complications of sutureless manual extracapsular cataract extraction (SMECE) in the management of patients with black cataracts using envelop anterior capsulotomy and soft shell technique. METHODS: In a prospective observational study conducted at Khyber Institute of Ophthalmic Medical Sciences, Hayatabad Medical Complex, from January 2008 to December 2009, a total of 125 consecutive patients with black cataract underwent cataract extraction using SMECE with an envelop or V-type anterior capsulotomy and soft shell technique...
October 2011: Journal of Ayub Medical College, Abbottabad: JAMC
F T A Kretz, F Mackensen, G U Auffarth
No abstract text is available yet for this article.
February 2013: Klinische Monatsblätter Für Augenheilkunde
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