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Updates on sperm retrieval techniques
2014
Translational Andrology and Urology
Preserved Fulltext
Causes of obstructive azoospermia include vasectomy,
Review Article Updates on sperm retrieval techniques Andrew Leung 1 , Jose Mira 2 , Wayland Hsiao 3 congenital bilateral absence of the vas deferens ...
doi:10.3978/j.issn.2223-4683.2014.02.03
pmid:26816757
pmcid:PMC4708305
fatcat:yoflungu7zdiro5slecd2n5rci
Culture-Dependent Bioprospecting of Bacterial Isolates From the Canadian High Arctic Displaying Antibacterial Activity
2019
Frontiers in Microbiology
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The goal of this study was to isolate, screen, and characterize Arctic microbial isolates from Expedition Fjord, Axel Heiberg Island, Nunavut, Canada capable of inhibiting the growth of foodborne and clinically relevant pathogens. Arctic bacteria were isolated from twelve different high Arctic habitats pertaining to active layer permafrost soil, saline spring sediments, lake sediments, and endoliths. This was achieved using (1) the cryo-iPlate, an innovative in situ cultivation device within
doi:10.3389/fmicb.2019.01836
pmid:31447822
pmcid:PMC6696727
fatcat:z4dty3jom5dt5kpbaelo7lvopi
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... ive layer permafrost soil and (2) bulk plating of Arctic samples by undergraduate students that applied standard culturing methods. To mitigate the possibility of identifying isolates with already-known antibacterial activities, a cell-based dereplication platform was used. Ten out of the twelve Arctic habitats tested were found to yield cold-adapted isolates with antibacterial activity. Eight cold-adapted Arctic isolates were identified with the ability to inhibit the entire dereplication platform, suggesting the possibility of new mechanisms of action. Two promising isolates, initially cultured from perennial saline spring sediments and from active layer permafrost soil (Paenibacillus sp. GHS.8.NWYW.5 and Pseudomonas sp. AALPS.10.MNAAK.13, respectively), displayed antibacterial activity against foodborne and clinically relevant pathogens. Paenibacillus sp. GHS.8.NWYW.5 was capable of inhibiting methicillin resistant and susceptible Staphylococcus aureus (MRSA and MSSA), Listeria monocytogenes, Salmonella enterica and Escherichia coli O157:H7. Pseudomonas sp. AALPS.10.MNAAK.13 was observed to have antagonistic activity against MRSA, MSSA, Acinetobacter baumanii, Enterococcus faecium, and Enterococcus faecalis. After whole genome sequencing and mining, the genome of Paenibacillus sp. GHS.8.NWYW.5 was found to contain seven putative secondary metabolite biosynthetic gene clusters that displayed low homology (<50% coverage, <30% identity, and e-values > 0) to clusters identified within the genome of the type strain pertaining to the same species. These findings suggest that cold-adapted Arctic microbes may be a promising source of novel secondary metabolites for potential use in both industrial and medical settings.
Page 135 of Astronomy and Astrophysics Vol. 124, Issue 2
[page]
1983
Astronomy and Astrophysics
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These LMC and galactic M-Supergiants are in the stage of core-helium burning, having masses between 10 and 30M, and luminosities between M,,,=—6 and —9 (Stothers and Leung, 1971). ...
Mira variables. ...
Page 206 of Astronomy and Astrophysics Vol. 265, Issue 1
[page]
1992
Astronomy and Astrophysics
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., Leung C.M., Spagna G.F. Jr., 1988, Comp. Phys. ...
., 1990, in: From Miras to Planetary Nebulae: Which Mennessier M.O., Omont A. (eds.) Path for Stellar Evolution? ...
An Infrared Colour Discriminator for Giant and Supergiant Optical M Stars
1995
International Astronomical Union Colloquium
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AbstractAn infrared colour - MK spectral type diagram of optical M giants, M Miras and M supergiants is presented. ...
The region of spectral type later than M4 is occupied by optical late M giants (Mira variables) and late M supergiants. ...
k Humphreys (1985) , Lee (1970) , Stothers k Leung (1971) and Buss k Snow (1988) . ...
doi:10.1017/s0252921100022089
fatcat:mhjbwmbrsjg7ddntj4cotf6nlq
Page 90 of Astronomy and Astrophysics Vol. 203, Issue 1
[page]
1988
Astronomy and Astrophysics
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Individual spectra are numerically simulated assuming that a central star is surrounded by a spherical dust shell (Leung, 1975). ...
The method is identical to the one developed for the carbon mira R For (Paper II). ...
The Pulsation Properties of Red Variables
[chapter]
1980
Highlights of Astronomy
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Stothers and Leung AA 10, 290, 1971) using a theoretical pulsation constant Q = 0.06 (fundamental mode) for massive red stars, and masses derived from a theoretical massluminosity relation for massive ...
miras of P ^ 330 days. ...
doi:10.1007/978-94-015-6912-5_63
fatcat:rqweno4vkvfk7bfavm5vl4enpu
Page 120 of Astronomy and Astrophysics Vol. 171, Issue 1-2
[page]
1987
Astronomy and Astrophysics
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Astrophys. 132, 75
Leung, C.M.: 1975, Astrophys. J. 199, 340
Rowan-Robinson, M., Harris, S.: 1982, Monthly Notices Roy. Astron. ...
These values are compatible with mass loss rates found for Mira stars (Zuckerman, 1980). ...
JEOLOJIK MIRAS ALANLARININ JEOTURIZM AÇISINDAN İNCELENMESI ÜZERINE BIR ARAŞTIRMA
2019
Journal of International Social Research
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Hâlbuki jeoturizm yalnızca jeoparklarda değil, aynı zamanda jeoparkların dışındaki jeositlerde de gerçekleşebilmektedir (Newsome, Dowling ve Leung, 2012, 20 (Newsome vd, 2012, 20) . -953 -Jeoturizm ...
ise, UNESCO tarafından Küresel Jeoparklar Ağı (GGN) kurulmuştur (Karameşe, 2014) . 2016 yılı verilerine göre, UNESCO' ya kayıtlı 120 tane jeopark bulunmaktadır (UNESCO, 2017 (Newsome, Dowling ve Leung ...
Jeoturizmin geliştirilmesine yönelik verilebilecek öneriler ise şu şekildedir: Jeolojik miras alanlarının gezilmesini kolaylaştırıcı kılavuzların hazırlanması Jeolojik miras alanlarının ve yakın çevresinin ...
doi:10.17719/jisr.2019.3288
fatcat:ynmpq2xy7bcflgqjwf72ireipm
The Pulsation Properties of Red Variables
1980
Highlights of Astronomy
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The Mira variables with periods over 200 days have pulsation constants appropriate to overtone pulsatore but the shorter period 135 day Miras seem to be hotter and less luminous and may be fundamental ...
Stothers and Leung AA 10, 290, 1971) using a theoretical pulsation constant Q = 0.06 (fundamental mode) for massive red stars, and masses derived from a theoretical massluminosity relation for massive ...
miras of P ^ 330 days. ...
doi:10.1017/s1539299600004342
fatcat:jntvizk5ezhklp4gjhcoakfmke
Page 360 of Astronomy and Astrophysics Vol. 250, Issue 2
[page]
1991
Astronomy and Astrophysics
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W., 1981, MNRAS 196, 111
Stothers R., Leung K.C., 1971, A&A 10, 290
Turnshek D.E., Turnshek D.A., Craine E.R., Boeshaar P.C., 1985, An Atlas of Digital Spectra of Cool Stars, Western Research Company, ...
., 1990, in: From Miras to Planetary Nebulae: Which Path for Stellar Evolution? eds. M.O. Mennessier, A. Omont, Editions Frontiéres, Paris, p. 273
Lockwood G. ...
Page 498 of Astronomy and Astrophysics Vol. 224, Issue 2
[page]
1989
Astronomy and Astrophysics
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Orbital ele- ments of BF Dra Imbert, M. 144, 255; 59, 357
BI Cru
The Mira-type symbiotic star BI Crucis Rossi, C., Altamore, A., Ferrari-Toniolo, M., Persi, P., Viotti, R. 206, 279 ...
., Leung, K.C., Zhang, R.X., Zhang, J.T. 141, 266
AT Mic
Ultraviolet emission lines and optical photometry of the flare star AT Microscopii Elgaroy, @., Joras, P., Engvold, O., Jensen, E., Pettersen, B.R ...
Page 1179 of Mathematical Reviews Vol. , Issue 97B
[page]
1997
Mathematical Reviews
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Edited by Roberto Moreno-Diaz and José Mira-Mira.
MIT Press, Cambridge, MA, 1996. xvi+-562 pp. $65.00.
ISBN 0-262-63170-9
Contents: Roberto Moreno-Diaz and José Mira-Mira, Preface: W. S. ...
Mira, Logic and neural nets: vari- ations on themes by W. S. McCulloch (24-36); J. Mira, Reverse neurophysiology: the “embodiments of mind” revisited (37-49); K. N. ...
STRONG CHANGES OF THE PHOTOMETRIC BEHAVIOUR OF CARBON MIRAS
2017
Odessa Astronomical Publications
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Analysis of variations of the light curves parameters of 16 Miras of spectral classes C and S has been made. A number of the peculiarities of these variations has been found. ...
Stothers & Leung (1971) have interpreted long secondary periods as the convective turnover time giant convection cells in the stellar envelope. ...
periods), Houk (1963) , Alksnis et al. (1997 ) (Miras) etc. ...
doi:10.18524/1810-4215.1999.12.93094
doaj:896ca85e2ef24869a78527e9ea0b9666
fatcat:2wu6sufusvdf5miw4sm6jcf7cq
Page 836 of Astronomy and Astrophysics Vol. 289, Issue 3
[page]
1994
Astronomy and Astrophysics
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-L., Leung, K.-C., Zhai, D.-S., Li, Y.-F. 1988, A&AS 74, 443
Lohmann, A.W., Weigelt, G., Wirnitzer, B. 1983, Appl. ...
.: The W Ursae Majoris system ER Ori: a multiple star
programme package MIRA that was used for the cross correlation. E.K. Grebel (ESO), G. ...
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