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1. Prevalence and Predictors of Barrett’s Esophagus After Negative Initial Endoscopy: Analysis From Two National Databases

Author

Dhaliwal, Lovekirat, Kamboj, Amrit K., Williams, J. Lucas, Chandar, Apoorva K., Sachdeva, Karan, Gibbons, Erin, Lansing, Ramona, Passe, Melissa, Perez, Jaime A., Avenir, Katelin L.R., Martin, Scott A., Leggett, Cadman L., Chak, Amitabh, Falk, Gary W., Wani, Sachin, Shaheen, Nicholas J., Kisiel, John B., and Iyer, Prasad G.

Published
2024
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2. Radiation-induced alteration of apatite on the surface of Mars:first in situ observations with SuperCam Raman onboard Perseverance

Author

Clavé, E., Beyssac, O., Bernard, S., Royer, C., Lopez-Reyes, G., Schröder, S., Rammelkamp, K., Forni, O., Fau, A., Cousin, A., Manrique, J. A., Ollila, A., Madariaga, J. M., Aramendia, J., Sharma, S. K., Fornaro, T., Maurice, S., Wiens, R. C., Acosta-Maeda, Tayro, Agard, Christophe, Alberquilla, Fernando, Alvarez Llamas, Cesar, Anderson, Ryan, Applin, Daniel, Aramendia, Julene, Arana, Gorka, Beal, Roberta, Beck, Pierre, Bedford, Candice, Benzerara, Karim, Bernard, Sylvain, Bernardi, Pernelle, Bertrand, Tanguy, Beyssac, Olivier, Bloch, Thierry, Bonnet, Jean-Yves, Bousquet, Bruno, Boustelitane, Abderrahmane, Bouyssou Mann, Magali, Brand, Matthew, Cais, Philippe, Caravaca, Gwenael, De Pinedo, Kepa Castro Ortiz, Cazalla, Charlene, Charpentier, Antoine, Chide, Baptiste, Clavé, Elise, Clegg, Samuel, Cloutis, Ed, Coloma, Leire, Comellas, Jade, Connell, Stephanie, Cousin, Agnes, DeFlores, Lauren, Dehouck, Erwin, Delapp, Dot, Perez, Tomas Delgado, Deron, Robin, Donny, Christophe, Doressoundiram, Alain, Dromart, Gilles, Essunfeld, Ari, Fabre, Cecile, Fau, Amaury, Fischer, Woodward, Follic, Hugo, Forni, Olivier, Fouchet, Thierry, Francis, Raymond, Frydenvang, Jens, Gabriel, Travis, Gallegos, Zachary, García-Florentino, Cristina, Gasda, Patrick, Gasnault, Olivier, Gibbons, Erin, Gillier, Martin, Gomez, Laura, Gonzalez, Sofia, Grotzinger, John, Huidobro, Jennifer, Jacob, Xavier, Johnson, Jeffrey, Kalucha, Hemani, Kelly, Evan, Knutsen, Elise, Lacombe, Gaetan, Lamarque, Florentin, Lanza, Nina, Larmat, Carene, Laserna, Javier, Lasue, Jeremie, Le Deit, Laetitia, Le Mouelic, Stephane, Legett, Chip, Leveille, Richard, Lewin, Eric, Little, Cynthia, Loche, Mattéo, Lopez Reyes, Guillermo, Lorenz, Ralph, Lorigny, Eric, Madariaga, Juan Manuel, Madsen, Morten, Mandon, Lucia, Manelski, Henry, Mangold, Nicolas, Martinez, Jose Manrique, Martin, Noah, Martinez Frias, Jesus, Maurice, Sylvestre, Mcconnochie, Timothy, McLennan, Scott, Melikechi, Noureddine, Meslin, Pierre Yves, Meunier, Frederique, Mimoun, David, Montagnac, Gilles, Montmessin, Franck, Moros, Javier, Mousset, Valerie, Murdoch, Naomi, Nelson, Tony, Newell, Ray, Nicolas, Cécile, Newsom, Horton, O’Shea, Colleen, Ollila, Ann, Pantalacci, Philippe, Parmentier, Jonathan, Peret, Laurent, Perrachon, Pascal, Pilleri, Paolo, Pilorget, Cédric, Pinet, Patrick, Poblacion, Iratxe, Poulet, Francois, Quantin Nataf, Cathy, Rapin, William, Reyes, Ivan, Rigaud, Laurent, Robinson, Scott, Rochas, Ludovic, Root, Margaret, Ropert, Eloise, Rouverand, Léa, Royer, Clement, Perez, Fernando Rull, Said, David, Sans-Jofre, Pierre, Schroeder, Susanne, Seel, Fabian, Sharma, Shiv, Sheridan, Amanda, Sobron Sanchez, Pablo, Stcherbinine, Aurélien, Stott, Alex, Toplis, Michael, Turenne, Nathalie, Veneranda, Marco, Venhaus, Dawn, Wiens, Roger, Wolf, Uriah, Zastrow, Allison, Clavé, E., Beyssac, O., Bernard, S., Royer, C., Lopez-Reyes, G., Schröder, S., Rammelkamp, K., Forni, O., Fau, A., Cousin, A., Manrique, J. A., Ollila, A., Madariaga, J. M., Aramendia, J., Sharma, S. K., Fornaro, T., Maurice, S., Wiens, R. C., Acosta-Maeda, Tayro, Agard, Christophe, Alberquilla, Fernando, Alvarez Llamas, Cesar, Anderson, Ryan, Applin, Daniel, Aramendia, Julene, Arana, Gorka, Beal, Roberta, Beck, Pierre, Bedford, Candice, Benzerara, Karim, Bernard, Sylvain, Bernardi, Pernelle, Bertrand, Tanguy, Beyssac, Olivier, Bloch, Thierry, Bonnet, Jean-Yves, Bousquet, Bruno, Boustelitane, Abderrahmane, Bouyssou Mann, Magali, Brand, Matthew, Cais, Philippe, Caravaca, Gwenael, De Pinedo, Kepa Castro Ortiz, Cazalla, Charlene, Charpentier, Antoine, Chide, Baptiste, Clavé, Elise, Clegg, Samuel, Cloutis, Ed, Coloma, Leire, Comellas, Jade, Connell, Stephanie, Cousin, Agnes, DeFlores, Lauren, Dehouck, Erwin, Delapp, Dot, Perez, Tomas Delgado, Deron, Robin, Donny, Christophe, Doressoundiram, Alain, Dromart, Gilles, Essunfeld, Ari, Fabre, Cecile, Fau, Amaury, Fischer, Woodward, Follic, Hugo, Forni, Olivier, Fouchet, Thierry, Francis, Raymond, Frydenvang, Jens, Gabriel, Travis, Gallegos, Zachary, García-Florentino, Cristina, Gasda, Patrick, Gasnault, Olivier, Gibbons, Erin, Gillier, Martin, Gomez, Laura, Gonzalez, Sofia, Grotzinger, John, Huidobro, Jennifer, Jacob, Xavier, Johnson, Jeffrey, Kalucha, Hemani, Kelly, Evan, Knutsen, Elise, Lacombe, Gaetan, Lamarque, Florentin, Lanza, Nina, Larmat, Carene, Laserna, Javier, Lasue, Jeremie, Le Deit, Laetitia, Le Mouelic, Stephane, Legett, Chip, Leveille, Richard, Lewin, Eric, Little, Cynthia, Loche, Mattéo, Lopez Reyes, Guillermo, Lorenz, Ralph, Lorigny, Eric, Madariaga, Juan Manuel, Madsen, Morten, Mandon, Lucia, Manelski, Henry, Mangold, Nicolas, Martinez, Jose Manrique, Martin, Noah, Martinez Frias, Jesus, Maurice, Sylvestre, Mcconnochie, Timothy, McLennan, Scott, Melikechi, Noureddine, Meslin, Pierre Yves, Meunier, Frederique, Mimoun, David, Montagnac, Gilles, Montmessin, Franck, Moros, Javier, Mousset, Valerie, Murdoch, Naomi, Nelson, Tony, Newell, Ray, Nicolas, Cécile, Newsom, Horton, O’Shea, Colleen, Ollila, Ann, Pantalacci, Philippe, Parmentier, Jonathan, Peret, Laurent, Perrachon, Pascal, Pilleri, Paolo, Pilorget, Cédric, Pinet, Patrick, Poblacion, Iratxe, Poulet, Francois, Quantin Nataf, Cathy, Rapin, William, Reyes, Ivan, Rigaud, Laurent, Robinson, Scott, Rochas, Ludovic, Root, Margaret, Ropert, Eloise, Rouverand, Léa, Royer, Clement, Perez, Fernando Rull, Said, David, Sans-Jofre, Pierre, Schroeder, Susanne, Seel, Fabian, Sharma, Shiv, Sheridan, Amanda, Sobron Sanchez, Pablo, Stcherbinine, Aurélien, Stott, Alex, Toplis, Michael, Turenne, Nathalie, Veneranda, Marco, Venhaus, Dawn, Wiens, Roger, Wolf, Uriah, and Zastrow, Allison

Abstract

Planetary exploration relies considerably on mineral characterization to advance our understanding of the solar system, the planets and their evolution. Thus, we must understand past and present processes that can alter materials exposed on the surface, affecting space mission data. Here, we analyze the first dataset monitoring the evolution of a known mineral target in situ on the Martian surface, brought there as a SuperCam calibration target onboard the Perseverance rover. We used Raman spectroscopy to monitor the crystalline state of a synthetic apatite sample over the first 950 Martian days (sols) of the Mars2020 mission. We note significant variations in the Raman spectra acquired on this target, specifically a decrease in the relative contribution of the Raman signal to the total signal. These observations are consistent with the results of a UV-irradiation test performed in the laboratory under conditions mimicking ambient Martian conditions. We conclude that the observed evolution reflects an alteration of the material, specifically the creation of electronic defects, due to its exposure to the Martian environment and, in particular, UV irradiation. This ongoing process of alteration of the Martian surface needs to be taken into account for mineralogical space mission data analysis.

Published
2024

4. PREVALENCE AND PREDICTORS OF BARRETT’S ESOPHAGUS AFTER NEGATIVE INITIAL ENDOSCOPY: ANALYSIS FROM TWO NATIONAL DATABASES

Author

Dhaliwal, Lovekirat, primary, Kamboj, Amrit K., additional, Williams, J. Lucas, additional, Chandar, Apoorva K., additional, Sachdeva, Karan, additional, Gibbons, Erin, additional, Lansing, Ramona, additional, Passe, Melissa, additional, Perez, Jamie A., additional, Avenir, Katelin L.R., additional, Martin, Scott A., additional, Leggett, Cadman L., additional, Chak, Amitabh, additional, Falk, Gary W., additional, Wani, Sachin, additional, Shaheen, Nicholas J., additional, Kisiel, John B., additional, and Iyer, Prasad G., additional

Published
2023
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7. Post-landing major element quantification using SuperCam laser induced breakdown spectroscopy

Author

Anderson, Ryan B., Forni, Olivier, Cousin, Agnes, Wiens, Roger C., Clegg, Samuel M., Frydenvang, Jens, Gabriel, Travis S. J., Ollila, Ann, Schröder, Susanne, Beyssac, Olivier, Gibbons, Erin, Vogt, David S., Clavé, Elise, Manrique, Jose-Antonio, Legett, Carey, Pilleri, Paolo, Newell, Raymond T., Sarrao, Joseph, Maurice, Sylvestre, Arana, Gorka, Benzerara, Karim, Bernardi, Pernelle, Bernard, Sylvain, Bousquet, Bruno, Brown, Adrian J., Alvarez-Llamas, César, Chide, Baptiste, Cloutis, Edward, Comellas, Jade, Connell, Stephanie, Dehouck, Erwin, Delapp, Dorothea M., Essunfeld, Ari, Fabre, Cecile, Fouchet, Thierry, Garcia-Florentino, Cristina, García-Gómez, Laura, Gasda, Patrick, Gasnault, Olivier, Hausrath, Elisabeth M., Lanza, Nina L., Laserna, Javier, Lasue, Jeremie, Lopez, Guillermo, Madariaga, Juan Manuel, Mandon, Lucia, Mangold, Nicolas, Meslin, Pierre-Yves, Nelson, Anthony E., Newsom, Horton, Reyes-Newell, Adriana L., Robinson, Scott, Rull, Fernando, Sharma, Shiv, Simon, Justin I., Sobron, Pablo, Fernandez, Imanol Torre, Udry, Arya, Venhaus, Dawn, Mclennan, Scott M., Morris, Richard V., Ehlmann, Bethany, Anderson, Ryan B., Forni, Olivier, Cousin, Agnes, Wiens, Roger C., Clegg, Samuel M., Frydenvang, Jens, Gabriel, Travis S. J., Ollila, Ann, Schröder, Susanne, Beyssac, Olivier, Gibbons, Erin, Vogt, David S., Clavé, Elise, Manrique, Jose-Antonio, Legett, Carey, Pilleri, Paolo, Newell, Raymond T., Sarrao, Joseph, Maurice, Sylvestre, Arana, Gorka, Benzerara, Karim, Bernardi, Pernelle, Bernard, Sylvain, Bousquet, Bruno, Brown, Adrian J., Alvarez-Llamas, César, Chide, Baptiste, Cloutis, Edward, Comellas, Jade, Connell, Stephanie, Dehouck, Erwin, Delapp, Dorothea M., Essunfeld, Ari, Fabre, Cecile, Fouchet, Thierry, Garcia-Florentino, Cristina, García-Gómez, Laura, Gasda, Patrick, Gasnault, Olivier, Hausrath, Elisabeth M., Lanza, Nina L., Laserna, Javier, Lasue, Jeremie, Lopez, Guillermo, Madariaga, Juan Manuel, Mandon, Lucia, Mangold, Nicolas, Meslin, Pierre-Yves, Nelson, Anthony E., Newsom, Horton, Reyes-Newell, Adriana L., Robinson, Scott, Rull, Fernando, Sharma, Shiv, Simon, Justin I., Sobron, Pablo, Fernandez, Imanol Torre, Udry, Arya, Venhaus, Dawn, Mclennan, Scott M., Morris, Richard V., and Ehlmann, Bethany

Abstract

The SuperCam instrument on the Perseverance Mars 2020 rover uses a pulsed 1064 nm laser to ablate targets at a distance and conduct laser induced breakdown spectroscopy (LIBS) by analyzing the light from the resulting plasma. SuperCam LIBS spectra are preprocessed to remove ambient light, noise, and the continuum signal present in LIBS observations. Prior to quantification, spectra are masked to remove noisier spectrometer regions and spectra are normalized to minimize signal fluctuations and effects of target distance. In some cases, the spectra are also standardized or binned prior to quantification. To determine quantitative elemental compositions of diverse geologic materials at Jezero crater, Mars, we use a suite of 1198 laboratory spectra of 334 well-characterized reference samples. The samples were selected to span a wide range of compositions and include typical silicate rocks, pure minerals (e.g., silicates, sulfates, carbonates, oxides), more unusual compositions (e.g., Mn ore and sodalite), and replicates of the sintered SuperCam calibration targets (SCCTs) onboard the rover. For each major element (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), the database was subdivided into five “folds” with similar distributions of the element of interest. One fold was held out as an independent test set, and the remaining four folds were used to optimize multivariate regression models relating the spectrum to the composition. We considered a variety of models, and selected several for further investigation for each element, based primarily on the root mean squared error of prediction (RMSEP) on the test set, when analyzed at 3 m. In cases with several models of comparable performance at 3 m, we incorporated the SCCT performance at different distances to choose the preferred model. Shortly after landing on Mars and collecting initial spectra of geologic targets, we selected one model per

Published
2022

8. Compositionally and density stratified igneous terrain in Jezero crater, Mars

Author

Wiens, Roger C., Udry, Arya, Beyssac, Olivier, Quantin-Nataf, Cathy, Mangold, Nicolas, Cousin, Agnès, Mandon, Lucia, Bosak, Tanja, Forni, Olivier, McLennan, Scott M., Sautter, Violaine, Brown, Adrian, Benzerara, Karim, Johnson, Jeffrey R., Mayhew, Lisa, Maurice, Sylvestre, Anderson, Ryan B., Clegg, Samuel M., Crumpler, Larry, Gabriel, Travis S. J., Gasda, Patrick, Hall, James, Horgan, Briony H. N., Kah, Linda, Legett, Carey, Madariaga, Juan Manuel, Meslin, Pierre-Yves, Ollila, Ann M., Poulet, Francois, Royer, Clement, Sharma, Shiv K., Siljeström, Sandra, Simon, Justin I., Acosta-Maeda, Tayro E., Alvarez-Llamas, Cesar, Angel, S. Michael, Arana, Gorka, Beck, Pierre, Bernard, Sylvain, Bertrand, Tanguy, Bousquet, Bruno, Castro, Kepa, Chide, Baptiste, Clavé, Elise, Cloutis, Ed, Connell, Stephanie, Dehouck, Erwin, Dromart, Gilles, Fischer, Woodward, Fouchet, Thierry, Francis, Raymond, Frydenvang, Jens, Gasnault, Olivier, Gibbons, Erin, Gupta, Sanjeev, Hausrath, Elisabeth M., Jacob, Xavier, Kalucha, Hemani, Kelly, Evan, Knutsen, Elise, Lanza, Nina, Laserna, Javier, Lasue, Jeremie, Le Mouélic, Stéphane, Leveille, Richard, Lopez-Reyes, Guillermo, Lorenz, Ralph, Manrique, Jose Antonio, Martinez-Frias, Jesus, McConnochie, Tim, Melikechi, Noureddine, Mimoun, David, Montmessin, Franck, Moros, Javier, Murdoch, Naomi, Pilleri, Paolo, Pilorget, Cedric, Pinet, Patrick, Rapin, William, Rull, Fernando, Schröder, Susanne, Shuster, David L., Smith, Rebecca J., Stott, Alexander E., Tarnas, Jesse, Turenne, Nathalie, Veneranda, Marco, Vogt, David S., Weiss, Benjamin P., Willis, Peter, Stack, Kathryn M., Williford, Kenneth H., Farley, Kenneth A., Wiens, Roger C., Udry, Arya, Beyssac, Olivier, Quantin-Nataf, Cathy, Mangold, Nicolas, Cousin, Agnès, Mandon, Lucia, Bosak, Tanja, Forni, Olivier, McLennan, Scott M., Sautter, Violaine, Brown, Adrian, Benzerara, Karim, Johnson, Jeffrey R., Mayhew, Lisa, Maurice, Sylvestre, Anderson, Ryan B., Clegg, Samuel M., Crumpler, Larry, Gabriel, Travis S. J., Gasda, Patrick, Hall, James, Horgan, Briony H. N., Kah, Linda, Legett, Carey, Madariaga, Juan Manuel, Meslin, Pierre-Yves, Ollila, Ann M., Poulet, Francois, Royer, Clement, Sharma, Shiv K., Siljeström, Sandra, Simon, Justin I., Acosta-Maeda, Tayro E., Alvarez-Llamas, Cesar, Angel, S. Michael, Arana, Gorka, Beck, Pierre, Bernard, Sylvain, Bertrand, Tanguy, Bousquet, Bruno, Castro, Kepa, Chide, Baptiste, Clavé, Elise, Cloutis, Ed, Connell, Stephanie, Dehouck, Erwin, Dromart, Gilles, Fischer, Woodward, Fouchet, Thierry, Francis, Raymond, Frydenvang, Jens, Gasnault, Olivier, Gibbons, Erin, Gupta, Sanjeev, Hausrath, Elisabeth M., Jacob, Xavier, Kalucha, Hemani, Kelly, Evan, Knutsen, Elise, Lanza, Nina, Laserna, Javier, Lasue, Jeremie, Le Mouélic, Stéphane, Leveille, Richard, Lopez-Reyes, Guillermo, Lorenz, Ralph, Manrique, Jose Antonio, Martinez-Frias, Jesus, McConnochie, Tim, Melikechi, Noureddine, Mimoun, David, Montmessin, Franck, Moros, Javier, Murdoch, Naomi, Pilleri, Paolo, Pilorget, Cedric, Pinet, Patrick, Rapin, William, Rull, Fernando, Schröder, Susanne, Shuster, David L., Smith, Rebecca J., Stott, Alexander E., Tarnas, Jesse, Turenne, Nathalie, Veneranda, Marco, Vogt, David S., Weiss, Benjamin P., Willis, Peter, Stack, Kathryn M., Williford, Kenneth H., and Farley, Kenneth A.

Abstract

Before Perseverance, Jezero crater's floor was variably hypothesized to have a lacustrine, lava, volcanic airfall, or aeolian origin. SuperCam observations in the first 286 Mars days on Mars revealed a volcanic and intrusive terrain with compositional and density stratification. The dominant lithology along the traverse is basaltic, with plagioclase enrichment in stratigraphically higher locations. Stratigraphically lower, layered rocks are richer in normative pyroxene. The lowest observed unit has the highest inferred density and is olivine-rich with coarse (1.5 millimeters) euhedral, relatively unweathered grains, suggesting a cumulate origin. This is the first martian cumulate and shows similarities to martian meteorites, which also express olivine disequilibrium. Alteration materials including carbonates, sulfates, perchlorates, hydrated silicates, and iron oxides are pervasive but low in abundance, suggesting relatively brief lacustrine conditions. Orbital observations link the Jezero floor lithology to the broader Nili-Syrtis region, suggesting that density-driven compositional stratification is a regional characteristic.

Published
2022

9. 691: DEVELOPMENT OF A DEEP LEARNING MODEL FOR WHOLE SLIDE IMAGE ANALYSIS IN THE HISTOLOGIC DIAGNOSIS OF DYSPLASTIC BARRETT'S ESOPHAGUS

Author

Faghani, Shahriar, primary, Codipilly, Don C., additional, Vogelsang, David, additional, Agarwal, Siddharth, additional, Dhaliwal, Lovekirat S., additional, Sachdeva, Karan, additional, Gibbons, Erin, additional, Lansing, Ramona, additional, Leggett, Cadman L., additional, Katzka, David A., additional, Moassefi, Mana, additional, Rouzrokh, Pouria, additional, Khosravi, Bardia, additional, Hagen, Catherine E., additional, Lewis, Jason T., additional, Erickson, Bradley, additional, and Iyer, Prasad G., additional

Published
2022
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11. Estradiol Augments Tumor-Induced Neutrophil Production to Promote Tumor Cell Actions in Lymphangioleiomyomatosis Models.

Author

Minor, Briaunna M N, LeMoine, Dana, Seger, Christina, Gibbons, Erin, Koudouovoh, Jules, Taya, Manisha, Kurtz, Daniel, Xu, Yan, and Hammes, Stephen R

Subjects
LYMPHANGIOMYOMATOSIS, LUNG diseases, NEUTROPHILS
Abstract

Lymphangioleiomyomatosis (LAM) is a rare cystic lung disease caused by smooth muscle cell-like tumors containing tuberous sclerosis (TSC) gene mutations and found almost exclusively in females. Patient studies suggest LAM progression is estrogen dependent, an observation supported by in vivo mouse models. However, in vitro data using TSC-null cell lines demonstrate modest estradiol (E2) responses, suggesting E2 effects in vivo may involve pathways independent of direct tumor stimulation. We previously reported tumor-dependent neutrophil expansion and promotion of TSC2-null tumor growth in an E2-sensitive LAM mouse model. We therefore hypothesized that E2 stimulates tumor growth in part by promoting neutrophil production. Here we report that E2-enhanced lung colonization of TSC2-null cells is indeed dependent on neutrophils. We demonstrate that E2 induces granulopoiesis via estrogen receptor α in male and female bone marrow cultures. With our novel TSC2-null mouse myometrial cell line, we show that factors released from these cells drive E2-sensitive neutrophil production. Last, we analyzed single-cell RNA sequencing data from LAM patients and demonstrate the presence of tumor-activated neutrophils. Our data suggest a powerful positive feedback loop whereby E2 and tumor factors induce neutrophil expansion, which in turn intensifies tumor growth and production of neutrophil-stimulating factors, resulting in continued TSC2-null tumor growth. [ABSTRACT FROM AUTHOR]

Published
2023
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17. 224 EXTERNAL VALIDATION OF A DEEP LEARNING MODEL FOR WHOLE SLIDE IMAGE ANALYSIS IN THE HISTOLOGIC DIAGNOSIS OF DYSPLASTIC BARRETT'S ESOPHAGUS

Author

Codipilly, Don C., Faghani, Shahriar, Sachdeva, Karan, Gibbons, Erin, Lansing, Ramona, Passe, Melissa, Leggett, Cadman L., Katzka, David A., Moassefi, Mana, Rouzrokh, Pouria, Khosravi, Bardia, Hagen, Catherine E., Lewis, Jason T., Patil, Pallavi A., Konda, Vani, Peter, Shajan, Diffalha, Sameer Al, Brinkerhoff, Brian, Wong, Mary, Otaki, Fouad, Shaheen, Nicholas J., Erickson, Bradley, and Iyer, Prasad G.

Published
2023
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22. The money of laundering: when it comes to managing linen costs, operators are finding that less is more

Author

Gibbons, Erin

Subjects
Restaurant industry -- Equipment and supplies -- Finance, Cost control -- Methods, Company financing, Cost reduction, Company pricing policy, Business, Food and beverage industries
Abstract

Linens have long been a thorn in the side of restaurateurs, who find themselves with little choice but to pay a premium for rental services to launder and deliver napkins, [...]

Published
2015

25. A unified description of the spin-spin and spin-lattice relaxation rates applied to nitroxide spin labels in viscous liquids

Author

Robinson, Bruce H., Reese, Annabelle W., Gibbons, Erin, and Mailer, Colin

Subjects
Molecular dynamics -- Research, Molecular rotation -- Research, Chemicals, plastics and rubber industries
Abstract

The application of electron and nuclear spin relaxation theory has caused a seeming paradox to develop, even in the fast motion limit for nitroxide spin labels. Two well-resolved EPR lines are seen when using 15N nitroxide spin labels due to the interaction of the electron with the nitrogen nucleus. The spin-spin relaxation rates are related to the observed line widths. The results showed that by following the operator method of Abragam, both spin-lattice relaxation and spin-spin relaxation lead to theoretical predictions agreeing with experimental results could be developed.

Published
1999

29. Resection of a staggering 36-cm angiomyolipoma.

Author

Gayed BA, Jacobs BL, Gibbons EP, and Hrebinko RL

Abstract

Angiomyolipomas (AMLs) are benign tumours characterized by fat, smooth muscle and vascular components. Epithelioid AML is a recognized variant of AML that is comprised of epithelioid smooth muscle cells. We present a case of a 41-year-old male who presented with light-headedness, dizziness, right-sided abdominal pain and, on subsequent computed tomography, was found to have an enormous right kidney mass characteristic of an AML. The patient underwent preoperative selective arterial embolization followed by a right radical nephrectomy. The pathology revealed a 36-cm AML with focal epithelioid features. Although uncommon, AMLs can present as enormous retroperitoneal masses.

Published
2010
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30. Laparoscopic nephrectomy using the EnSeal Tissue Sealing and Hemostasis System: successful therapeutic application of nanotechnology.

Author

Smaldone MC, Gibbons EP, and Jackman SV

Subjects
Aged, 80 and over, Blood Loss, Surgical prevention & control, Humans, Laparoscopy, Male, Nanotechnology, Carcinoma, Renal Cell surgery, Hemostasis, Surgical instrumentation, Kidney Neoplasms surgery, Nephrectomy instrumentation
Abstract

The potential impact of nanotechnology in the field of urology is broad with diagnostic and therapeutic benefits that have only recently begun to be explored. Application of nanotechnology principles to tissue and vessel sealing during laparoscopic procedures may reduce associated thermal injury and inflammatory response. We report our initial experience using the EnSeal Tissue Sealing and Hemostasis System during laparoscopic nephrectomy and discuss its potential advantages and disadvantages compared with those of contemporary technologies.

Published
2008

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