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https://www.readbyqxmd.com/read/27921225/dimensional-changes-in-the-kolahoi-glacier-from-1857-to-2014
#1
Aparna Shukla, Iram Ali, Nazia Hasan, Shakil A Romshoo
This study assimilates data from historical records (1857-1961/84), survey of India topographic maps, and a series of multispectral satellite data (1962-2014) for analyzing the shrinkage and dimensional changes of the Kolahoi glacier, Jammu and Kashmir, between 1857 and 2014. The composite results show that the glacier has receded by ∼3423 m (21.8 m/year) in the past 157 years. The historical records reveal that the glacier retreated by >1609 m from 1857 to 1909, 800 m from 1912 to 1961, and 210 m from 1961 to 1984...
December 2016: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/27920861/colon-cancer-metastasis-to-the-sternum-palliative-treatment-with-radiofrequency-ablation-and-cement-injection
#2
Bryan E Wessel, Douglas Coldwell
Colon cancer metastasis to bone is extremely rare and has devastating consequences on patients' quality of life. Furthermore, radiofrequency ablation in conjunction with cementoplasty to nonweight bearing, flat bones has not been widely reported as palliative treatment for pain as a result of bone metastasis. Here, we present a case of a 47-year-old man who developed a sternal metastasis from an invasive adenocarcinoma of the colon originally diagnosed several years prior. The pain from the metastasis was originally treated with external beam radiation therapy, but after 6 weeks of continuous pain, it was retreated using radiofrequency ablation in conjunction with cementoplasty...
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27918627/exploring-dynamic-surface-processes-during-silicate-mineral-wollastonite-dissolution-with-liquid-cell-tem
#3
D N Leonard, R Hellmann
Most liquid cell transmission electron microscopy (LC TEM) studies focus on nanoparticles or nanowires, in large part because the preparation and study of materials in this size range is straightforward. By contrast, this is not true for samples in the micrometre size range, in large part because of the difficulties associated with sample preparation starting from a 'bulk' material. There are also many advantages inherent to the study of micrometre-sized samples compared to their nanometre-sized counterparts...
December 5, 2016: Journal of Microscopy
https://www.readbyqxmd.com/read/27917509/effect-of-solvents-on-apically-extruded-debris-and-irrigant-during-root-canal-retreatment-using-reciprocating-instruments
#4
C Keskin, E Sariyilmaz, O Sariyilmaz
AIM: To evaluate the effect of several solvents on the weight of apically extruded debris and irrigant during retreatment using a novel agar gel model. METHODS: Orange oil, turpentine oil and chloroform were used as solvents. Eighty single straight rooted extracted human mandibular premolar teeth with a single root canal were divided into four groups (n=20). All specimens were root canal filled and weighed prior to their insertion I a prepared 1.5% agar gel model...
December 5, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27915075/building-the-case-for-a-novel-teleost-model-of-non-breeding-aggression-and-its-neuroendocrine-control
#5
Laura Quintana, Lucía Zubizarreta, Cecilia Jalabert, Gervasio Batista, Rossana Perrone, Ana Silva
In vertebrates, aggression has been traditionally associated with high levels of circulating androgens in breeding males. Nevertheless, the centrality of androgens as primary modulators of aggression is being reconsidered in at least in two particular cases: 1) territorial aggression outside the breeding season, and 2) aggression by females. We are developing the weakly electric fish, Gymnotus omarorum, as a novel, advantageous model system to address these two alternative forms of aggression. This species displays a short, escalated contest, after which a clear hierarchical status emerges...
November 30, 2016: Journal of Physiology, Paris
https://www.readbyqxmd.com/read/27911946/k-shuff-a-novel-algorithm-for-characterizing-structural-and-compositional-diversity-in-gene-libraries
#6
Kamlesh Jangid, Ming-Hung Kao, Aishwarya Lahamge, Mark A Williams, Stephen L Rathbun, William B Whitman
K-shuff is a new algorithm for comparing the similarity of gene sequence libraries, providing measures of the structural and compositional diversity as well as the significance of the differences between these measures. Inspired by Ripley's K-function for spatial point pattern analysis, the Intra K-function or IKF measures the structural diversity, including both the richness and overall similarity of the sequences, within a library. The Cross K-function or CKF measures the compositional diversity between gene libraries, reflecting both the number of OTUs shared as well as the overall similarity in OTUs...
2016: PloS One
https://www.readbyqxmd.com/read/27911783/deglacial-temperature-history-of-west-antarctica
#7
Kurt M Cuffey, Gary D Clow, Eric J Steig, Christo Buizert, T J Fudge, Michelle Koutnik, Edwin D Waddington, Richard B Alley, Jeffrey P Severinghaus
The most recent glacial to interglacial transition constitutes a remarkable natural experiment for learning how Earth's climate responds to various forcings, including a rise in atmospheric CO2 This transition has left a direct thermal remnant in the polar ice sheets, where the exceptional purity and continual accumulation of ice permit analyses not possible in other settings. For Antarctica, the deglacial warming has previously been constrained only by the water isotopic composition in ice cores, without an absolute thermometric assessment of the isotopes' sensitivity to temperature...
November 28, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27903923/stent-assisted-coil-embolization-of-a-recurrent-posterior-cerebral-artery-aneurysm-following-surgical-clipping
#8
Tomonori Takeshita, Tomoaki Nagamine, Kohei Ishihara, Yasuhiko Kaku
Posterior cerebral artery (PCA) aneurysms are rare, and direct surgery of these is considered difficult. Coil embolization of PCA aneurysms is becoming popular. However, it is difficult to completely obliterate the aneurysm while preserving the flow of the parent artery in large or giant PCA aneurysms with a wide neck with this technique. We report a case of a large and wide-necked PCA aneurysm with multiple recurrences following successful surgical clipping and coil embolization.A 77-year-old man with a large unruptured right PCA (P2) aneurysm was successfully treated by surgical clipping...
November 30, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27901556/apical-transportation-during-removal-of-root-canal-filling-with-different-retreatment-systems
#9
Baran C Sağlam, Ersan Çiçek, Mustafa M Koçak, Sibel Koçak, Bağdagül H Kıvanç
INTRODUCTION: This study aimed to compare apical transportation during retreatment using ProTaper Universal retreatment (PTUR), Mtwo R and D-RaCe instruments in curved root canals. METHODS: 36 extracted mandibular molar teeth with curved mesiobuccal roots were selected. The teeth were embedded into acrylic blocks. The blocks were fixed on the experimental setup. After determining the working length (WL), mesiobuccal canals were prepared with ProTaper Universal rotary instruments to size F1 (20/0...
November 29, 2016: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/27900591/treatment-of-lung-tumours-with-high-energy-microwave-ablation-a-single-centre-experience
#10
Anna Maria Ierardi, Andrea Coppola, Natalie Lucchina, Gianpaolo Carrafiello
The purpose of our study is to report safety, technical success, effectiveness, local progression-free survival (LPFS) and overall survival of percutaneous microwave ablation (MWA) to treat lung tumours unsuitable for surgery. Nineteen patients with thirty-one tumours (mean diameter 2.4 cm) underwent percutaneous MWA in 28 sessions. Microwave ablation was carried out using a 2450-MHz generator (Emprint/Covidien, Boulder, CO, USA). Procedures were performed under cone-beam CT (CBCT) and under fluoro-CT (one session) guidance...
January 2017: Medical Oncology
https://www.readbyqxmd.com/read/27900218/a-prospective-randomised-controlled-study-comparing-bipolar-plasma-vaporisation-of-the-prostate-to-monopolar-transurethral-resection-of-the-prostate
#11
Ahmed M Elsakka, Hssan H Eltatawy, Khaled H Almekaty, Ahmed R Ramadan, Tarik A Gameel, Yasser Farahat
OBJECTIVES: To compare the safety and efficacy of bipolar transurethral plasma vaporisation (B-TUVP) as an alternative to the 'gold standard' monopolar transurethral resection of the prostate (M-TURP) for the treatment of benign prostatic hyperplasia (BPH) in a prospective randomised controlled study. PATIENTS AND METHODS: In all, 82 patients indicated for prostatectomy were assigned to two groups, group I (40 patients) underwent B-TUVP and group II (42 patients) underwent M-TURP...
December 2016: Arab Journal of Urology
https://www.readbyqxmd.com/read/27898448/laser-vision-correction-in-treating-myopia
#12
Germano Leal Ehlke, Ronald R Krueger
Myopia is a generally benign refractive error with an increasing prevalence worldwide. It can be corrected temporarily with glasses and contact lenses and permanently with laser vision correction. The 2 main procedures currently being performed for myopia correction are photorefractive keratectomy and laser-assisted in situ keratomileusis. Each technique has its advantages, but they appear to yield similar visual outcomes 1 year after surgery. Laser vision correction for myopia was considered a paradigm shift because healthy eyes could now undergo a surgical procedure to permanently and safely correct the error by altering the center of the cornea, which was previously off limits because of the potential for loss of transparency...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27896522/tapering-biologics-in-rheumatoid-arthritis-a-pragmatic-approach-for-clinical-practice
#13
Aleksander Lenert, Petar Lenert
Optimal rheumatoid arthritis (RA) therapy in daily clinical practice is based on the treat-to-target strategy. Quicker escalation of therapy and earlier introduction of biological disease-modifying anti-rheumatic drugs have led to improved outcomes in RA. However, chronic immunosuppressive therapy is associated with adverse events and higher costs. In addition, our patients frequently express a desire for lower dosing and drug holidays. Current clinical practice guidelines from the American College of Rheumatology and European League Against Rheumatism suggest that rheumatologists consider tapering treatment after achieving remission...
November 28, 2016: Clinical Rheumatology
https://www.readbyqxmd.com/read/27896061/successful-retreatment-with-osimertinib-after-osimertinib-induced-acute-pulmonary-embolism-in-a-patient-with-lung-adenocarcinoma-a-case-report
#14
Takayuki Shiroyama, Manabu Hayama, Shingo Satoh, Shingo Nasu, Ayako Tanaka, Satomu Morita, Naoko Morishita, Hidekazu Suzuki, Norio Okamoto, Tomonori Hirashima
Pulmonary embolism (PE) can be life-threatening, and it is challenging to diagnose because of its nonspecific signs and symptoms. PE is also an important potential risk of osimertinib treatment, however, clinical courses regarding retreatment after osimertinib-induced acute pulmonary embolism remain unclear. We described a 77-year-old woman with postoperative recurrent lung adenocarcinoma who developed osimertinib-induced acute PE. She received apixaban and was later successfully retreated with osimertinib...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/27894985/factors-influencing-treatment-default-among-tuberculosis-patients-in-a-high-burden-province-of-south-africa
#15
G Kigozi, C Heunis, P Chikobvu, S Botha, D van Rensburg
OBJECTIVE: To determine and describe the factors influencing treatment default of tuberculosis (TB) patients in the Free State Province of South Africa. METHODS: We conducted a retrospective record review of pulmonary TB cases-older than 15 years, with a recorded pre-treatment smear result-captured in the electronic TB register (ETR.net) between 2003 and 2012. The demographic and clinical characteristics of defaulters were described. Multiple logistic regression technique were used to determine the factors associated with treatment default...
November 25, 2016: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/27894266/tuberculosis-drug-resistance-in-bamako-mali-from-2006-to-2014
#16
B Diarra, D Goita, S Tounkara, M Sanogo, B Baya, A C G Togo, M Maiga, Y S Sarro, A Kone, B Kone, O M'Baye, N Coulibaly, H Kassambara, A Cisse, M Belson, M A Polis, J Otu, F Gehre, M Antonio, S Dao, S Siddiqui, R L Murphy, B C de Jong, S Diallo
BACKGROUND: Although Drug resistance tuberculosis is not a new phenomenon, Mali remains one of the "blank" countries without systematic data. METHODS: Between 2006 and 2014, we enrolled pulmonary TB patients from local TB diagnostics centers and a university referral hospital in several observational cohort studies. These consecutive patients had first line drug susceptibility testing (DST) performed on their isolates. A subset of MDR was subsequently tested for second line drug resistance...
November 28, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27893624/prospective-evaluation-of-a-sustained-release-dexamethasone-intravitreal-implant-for-cystoid-macular-edema-in-quiescent-uveitis
#17
Rahul N Khurana, Alok S Bansal, Louis K Chang, James D Palmer, Chengqing Wu, Mark R Wieland
PURPOSE: To investigate dexamethasone intravitreal implant (DEX implant; OZURDEX, Allergan, Inc) in the treatment of uveitic cystoid macular edema that had persisted in the absence of intraocular inflammation. METHODS: In this prospective interventional case series, 10 patients with uveitic cystoid macular edema and quiescent uveitis were treated with dexamethasone intravitreal implant at baseline and evaluated monthly for one year. Patients were retreated whenever cystoid macular edema recurred...
November 23, 2016: Retina
https://www.readbyqxmd.com/read/27892642/new-approaches-to-non-surgical-sterilization-for-dogs-and-cats-opportunities-and-challenges
#18
Linda Rhodes
Over the last 40 years, researchers have explored methods to non-surgically suppress fertility in animals. Immunocontraception has been used to control wildlife populations but does not confer long-term immunity. The gonadotropin-releasing hormone (GnRH) agonist deslorelin, formulated as an implant to provide 6-month to 1-year suppression of fertility in male dogs, is available commercially in some countries. Neither of these approaches provide permanent sterility. A single-dose, permanent treatment would be a valuable tool in dog and cat population control...
November 28, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27890608/speciation-faunal-affinities-and-geographical-dispersal-of-black-flies-diptera-simuliidae-in-the-oriental-region
#19
REVIEW
Hiroyuki Takaoka
The simuliid fauna of the Oriental Region is reviewed in comparison with those in five other zoogeographical regions. It is relatively young, represented by only one genus Simulium, which is regarded as the most specialized among 26 genera of the family Simuliidae. The Oriental Region has the second largest simuliid fauna with 524 species or 23.8% of the world total of 2204 extant species. This species richness is associated with a high speciation index (15.4), reflected especially by the high speciation rates of two dominant subgenera Gomphostilbia and Simulium although the number of lineages in the Oriental Region is moderate (34 or 20...
November 24, 2016: Acta Tropica
https://www.readbyqxmd.com/read/27890413/hydrological-and-depositional-processes-associated-with-recent-glacier-recession-in-yanamarey-catchment-cordillera-blanca-peru
#20
J I López-Moreno, B Valero-Garcés, B Mark, T Condom, J Revuelto, C Azorín-Molina, J Bazo, M Frugone, S M Vicente-Serrano, J Alejo-Cochachin
In this study, we investigate changes in the glaciated surface and the formation of lakes in the headwater of the Querococha watershed in Cordillera Blanca (Peru) using 24 Landsat images from 1975 to 2014. Information of glacier retreat was integrated with available climate data, the first survey of recent depositional dynamics in proglacial Yanamarey Lake (4600m a.s.l.), and a relatively short hydrological record (2002-2014) at the outlet of Yanamarey Lake. A statistically significant temperature warming (0...
November 24, 2016: Science of the Total Environment
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