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226篇 您的检索式:作者名="Jeremy A"
    题名 作者 年代 出处 被引量
1Generating optical orbital angular momentum at visible wavelengths using a plasmonic metasurface显示文摘Light beams with a helical phase-front possess orbital angular momentum along their direction of propagation in addition to the spin angular momentum that describes their polarisation.Until recently,it was thought that these two‘rotational’motions of light were largely independent and could not be coupled during light–matter interactions.However,it is now known that interactions with carefully designed complex media can result in spin-to-orbit coupling,where a change of the spin angular momentum will modify the orbital angular momentum and vice versa.In this work,we propose and demonstrate that the birefringence of plasmonic nanostructures can be wielded to transform circularly polarised light into light carrying orbital angular momentum.A device operating at visible wavelengths is designed from a space-variant array of subwavelength plasmonic nano-antennas.Experiment confirms that circularly polarised light transmitted through the device is imbued with orbital angular momentum of 62'(with conversion efficiency of at least 1%).This technology paves the way towards ultrathin orbital angular momentum generators that could be integrated into applications for spectroscopy,nanoscale sensing and classical or quantum communications using integrated photonic devices.Ebrahim Karimi Sebastian A Schulz Israel De Leon Hammam Qassim Jeremy Upham Robert W Boyd 2014Light(Science & Applications)2014,3,1:39
2Enteral stents for the management of malignant colorectal obstruction显示文摘Colorectal cancer(CRC) is the 3rd most common cancer in the United States with more than 10000 new cases diagnosed annually. Approximately 20% of patients with CRC will have distant metastasis at time of diagnosis, making them poor candidates for primary surgical resection. Similarly, 8%-25% of patients with CRC will present with bowel obstruction and will require palliative therapy. Emergent surgical decompression has a high mortality and morbidity, and often leads to a colostomy which impairs the patient's quality of life. In the last decade, there has been an increasing use of colonic stents for palliative therapy to relieve malignant colonic obstruction. Colonic stents have been shown to be effective and safe to treat obstruction from CRC, and are now the therapy of choice in this scenario. In the setting of an acute bowel obstruction in patients with potentially resectable colon cancer, stents may beused to delay surgery and thus allow for decompression, adequate bowel preparation, and optimization of the patient's condition for curative surgical intervention. An overall complication rate(major and minor) of up to 25% has been associated with the procedure. Long term failure of stents may result from stent migration and tumor ingrowth. In the majority of cases, repeat stenting or surgical intervention can successfully overcome these adverse effects.Jeremy Kaplan Anna Strongin Douglas G Adler Ali A Siddiqui 2014World Journal of Gastroenterology2014,20,37:13
3Placental accommodations for transport and metabolism during intra-uterine crowding in pigs显示文摘Litter size and birth weights are limited by uterine capacity, defined as the ability of the uterus to maintain the appropriate development of some number of conceptuses. Uterine capacity is the result of the combined effects of uterine, placental and embryo/fetal function. The number of living conceptuses that the uterus is capable of supporting is greater during early gestation compared to later gestation. Plots of log fetal weight versus log placental weight also indicate that fetal weights are less sensitive to reduced placental weight(and therefore reduced intrauterine space) in early gestation compared to late gestation. However, even in late gestation,mechanisms still exist that maintain fetal growth when the size of the placenta is reduced. One such mechanism is likely to be improved development of the folded placental-epithelial/maternal-epithelial bilayer. Fold depth, and therefore the maternal fetal interactive surface, increases as gestation advances and is greater in placenta from small fetuses. On the fetal side of the placenta, the epithelial bilayer is embedded in stromal tissue. Glycosaminoglycans are major components of stroma, including hyaluronan and heparan sulfate. Hyaluronidases and heparanases are present within placental tissues, and likely play roles in modification of stromal components to facilitate fold development. Glycosaminoglycans are polymers of forms of glucose(glucosamine, glucuronic acid, iduronic acid)suggesting that glycosaminoglycan synthesis may compete with the glucose needs of the developing fetus.Pig conceptuses are fructogenic, such that a substantial portion of glucose transferred from mother to fetus is converted to fructose. Fructose is an intermediate product in the synthesis of glucosamine from glucose, and glucosamine is linked to regulation of trophoblast cell proliferation through regulation of m TOR. These findings suggest a link between glucose, fructose, glucosamine synthesis, GAG production, and placental morphogenesis,but the details of these interactions remain unclear. In addition, recent placental epithelial transcriptome analysis identified several glucose, amino acid, lipid, vitamin, mineral and hormone transporter mechanisms within the placenta. Further elucidation of mechanisms of placental morphogenesis and solute transport could provide clues to improving nutrient transport to the pig fetus, potentially increasing litter size and piglet birth weights.Jeffrey L Vallet Anthony K Mc Neel Jeremy R Miles Bradley A Freking 2015Journal of Animal Science and Biotechnology2015,6,2:5
4Cementomimetics——constructing a cementum-like biomineralized microlayer via amelogenin-derived peptides显示文摘Cementum is the outer-,mineralized-tissue covering the tooth root and an essential part of the system of periodontal tissue that anchors the tooth to the bone. Periodontal disease results from the destructive behavior of the host elicited by an infectious biofilm adhering to the tooth root and left untreated,may lead to tooth loss. We describe a novel protocol for identifying peptide sequences from native proteins with the potential to repair damaged dental tissues by controlling hydroxyapatite biomineralization. Using amelogenin as a case study and a bioinformatics scoring matrix,we identified regions within amelogenin that are shared with a set of hydroxyapatite-binding peptides (HABPs) previously selected by phage display. One 22-amino acid long peptide regions referred to as amelogenin-derived peptide 5 (ADP5) was shown to facilitate cell-free formation of a cementum-like hydroxyapatite mineral layer on demineralized human root dentin that,in turn,supported attachment of periodontal ligament cells in vitro. Our findings have several implications in peptide-assisted mineral formation that mimic biomineralization. By further elaborating the mechanism for protein control over the biomineral formed,we afford new insights into the evolution of protein-mineral interactions. By exploiting small peptide domains of native proteins,our understanding of structure-function relationships of biomineralizing proteins can be extended and these peptides can be utilized to engineer mineral formation. Finally,the cementomimetic layer formed by ADP5 has the potential clinical application to repair diseased root surfaces so as to promote the regeneration of periodontal tissues and thereby reduce the morbidity associated with tooth loss.Mustafa Gungormus Ersin E Oren Jeremy A Horst Hanson Fong Marketa Hnilova Martha J Somerman Malcolm L Snead Ram Samudrala Candan Tamerler Mehmet Sarikaya 2012International Journal of Oral Science2012,4,2:5
5Diagnostic accuracy and clinical application of faecal calprotectin in adult patients presenting with gastrointestinal symptoms in primary care显示文摘Polychronis Pavlidis Fergus JQ Chedgy Jeremy A Tibble 2013Scandinavian Journal of Gastroenterology2013,,9:2
6Correlation between the proportion of breast volume involved by locally advanced tumors and invasion of the skin and posterior structures显示文摘AIM: To evaluate any differences between the percentages of involved breast volume, pathologic attributes,and tumor marker expression of T3 and T4a-c tumors in locally advanced breast cancers(BC).METHODS: All patients with T3 N > 0 and T4a-c BC without evidence of distant metastasis(M0), presenting to the Breast Clinic from 1980 to 2010, were examinedto determine whether their BC's involved ≥ 50% of their breast volumes, defined by gross replacement of at least one hemisphere. Core needle biopsy or postmastectomy specimens from tumors involving a known percent of breast volume were evaluated for:(1)pathological grades and lympho-vascular invasion(LVI);(2) hormone receptor(ER/PR) expression > 0; and(3)epidermoid growth factor 2(her2) over-expression(3+)by immune-histochemical staining or fluorescent in situ hybridization.RESULTS: The data base included 98 patients with T3N> 0 M0 and 120 with T4a-c, any N disease, M0 disease. T3 tumor masses involved 50% or more of the breast in 23/98(24%), and T4a-c tumors 65/120(54%)(P < 0.001). Only 1% of T3 tumors and 23% of T4a-c tumors presented with total breast replacement. There were no significant differences between the pathological attributes and marker expression of the T3 and T4a-c tumors.CONCLUSION: These data suggest that erosion of the overlying skin or underlying chest wall by some BC may be due to neglect and delay, rather than inherent biological aggressiveness.Parastoo B Dahi Komal P Dhiran Constantine A Axiotis Jeremy Weedon Mahmoud El-Tamer Gurinder Sidhu Albert S Braverman 2012World Journal of Clinical Oncology2012,3,3:2
7Endoscopic ultrasound-fine needle injection for oncological therapy显示文摘The minimal invasiveness and precision of endoscopicultrasound(EUS) has lead to both its widespread use as a diagnostic and staging modality for gastrointestinal and pancreaticobiliary malignancies, and to its expand-ing role as a therapeutic modality. EUS-guided celiac plexus neurolysis is now a well-accepted modality for palliation of pain in patients with pancreatic cancer. EUS-guided ablation, brachytherapy, fiducial marker placement, and antitumor agent injection have been described as methods of performing minimally invasive oncological therapy. EUS-fine needle injection may be performed as adjunctive, alternative, or palliative treatment. This review summarizes the studies to date that have described these methods. A literature search using the Pub Med/MEDLINE databases was performed. While most published studies to date are limited with disappointing outcomes, the concept of a role of EUS in oncological therapy seems promising.Jeremy Kaplan Amaara Khalid Natalie Cosgrove Ayesha Soomro Syed Mohsin Mazhar Ali A Siddiqui 2015World Journal of Gastrointestinal Oncology2015,7,12:2
8Surveillance for the detection of early lung cancer in patients with bronchial dysplasia 显示文摘Jeremy George P Banerjee A K Read C A 2007Thorax2007,62,1:1
9The effect of superoxide dismutase on nitric oxide-mediated and electrical field-stimulated diabetic rabbit cavernosal smooth muscle relaxation显示文摘Khan M A Thompson C S Jeremy J Y 2001BJU Int2001,87,:1
10Global association of air pollution and heart failure: a systematic review and meta-analysis显示文摘Anoop SV Shah Jeremy P Langrish Harish Nair David A McAllister Amanda L Hunter Ken Donaldson David E Newby Nicholas L Mills 2013The Lancet2013,,:1
11Blood Pressure Measurement:Conditions, invasive blood pressure monitoring显示文摘Matthew W Jeremy A L 2007Cont Edu Anaesth Crit Care & Pain2007,7,4:1
12Lactobacillus rhamnosus GG decreases TNF- α production in lipopolysaccharide-activated marine macrophages by a contact-independent mechanism显示文摘JEREMY A JAMES V 2003Cellular Microbiology2003,5,4:1
13Mechanical Factors in the Incidence of Knee Pain in Adolescents and Young Adults显示文摘 Paul B Jane A 1984The Journal of Bone and Joint Surgery1984,66,5:1
14Molecular mecha- nisms of pancreatitis : Current opinion 显示文摘Alain V Jeremy S W Minoti V A 20082I Gastroen- terol Hepatol2008,23,9:1
15Shunt current calcu- lation of fuel cell stack using Simulink-R 显示文摘Jeremy A Schaeffer Lea-Der Chen etc 2008Journal of Power Sources2008,182,2:1
16Nitrogen removal from domestic wastewater using the marshland upwelling system 显示文摘Jeremy F Dorin B Kelly A R 2006Ecol Eng2006,27,1:1
17The PHB1/2 phosphocomplex is required for mitochondrial homeostasis and survival of human T cells显示文摘Jeremy A Ross Zsuzsanna S Nagy and Robert A Kirken 2008J Biol Chem2008,283,8:1
18Lactobacillus rhamnosus GG decreasesTNF-aproduction in lipopolysaccharide-activated murinemacrophages by a contact-independent mechanism显示文摘Jeremy A James V 2003CellularMicrobiology2003,5,4:1
19Case 39-2008- A 51-Year-Old Woman with Splenomegaly and Anemia显示文摘Jeremy A Abramson MD Manjil Chatterji MD 2008N Engl J Med2008,359,25:1
20Characterization of a phenylalanine ammonia-lyase multigene family in Trifolium subterraneum显示文摘Paul A H Tony A Jeremy J W 1994Gene1994,138,1:1
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