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International Journal of Sediment Research 2015年第1期30卷 74-80页

作者： travis g.gerwing Alyssa M.ALLEN gerwing Diana J.HAMILTON Myriam A.BARBEAU Department of Biology University of New Brunswick Department of Biology Mount Allison University

As hypoxic conditions spread in our oceans,indices that quickly and efficiently assess oxygen content in sediment pore water,and habitat quality are increasingly becoming *** to the apparent redox potential discontinuity(aRPD) in sediment is one such index;however,the relationship between aRPD depth and oxygen content is still *** quantified oxygen content in sediment pore water with a dissolved oxygen(DO) probe,utilizing luminescent technology,to determine how DO concentration varies with depth in the sediment,and with position relative to the aRPD(above versus below) on an intertidal mudflat in the Bay of Fundy,*** on generalized linear regression models,we found that depth in the sediment was a poor predictor of pore water DO concentration,while position in the sediment relative to the aRPD was a good ***,sediment above the aRPD had higher DO content than sediment *** maintain that aRPD depth is a good measure of relative oxygen content in sediment pore water,as well as habitat ***,we recommend caution as the factors that influence aRPD depth arc numerous and variable;therefore,the relationship between aRPD depth and DO content should be experimentally confirmed in any system of interest before aRPD depth is used as an indicator.

关键词： Anoxia Apparent redox potential discontinuity(aRPD) Dissolved oxygen Habitat quality Hypoxia Intertidal Marine benthos Sediment pore water.

Relationship between apparent redox potential discontinuity (aRPD) depth and environmental variables in soft-sediment habitats

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International Journal of Sediment Research 2017年第4期32卷 472-480页

作者： travis g.gerwing Alyssa M.Allen gerwing Kieran Cox Francis Juanes Sarah E.Dudas Ecosystem Science and Management Program University of Northern British Columbia Department of Biology University of Victoria Department of Biology Vancouver Island University

As global temperatures increase and dissolved oxygen(DO) content decreases in marine systems, indices assessing sediment DO content in benthic habitats are becoming increasingly useful. One such measure is the depth to the apparent redox potential discontinuity(aRPD), a transition of sediment color that serves as a relative measure of sediment DO content. We examined spatiotemporal variation of aRPD depth, and the nature of the relationships between aRPD depth and biotic(infauna and epibenthic predators) and abiotic variables(sediment properties), as well as the availability of resources(chlorophyll a concentration, and organic matter content) in the intertidal mudflats of the Bay of Fundy, Canada. aRPD depth varied significantly through space and time, and a combination of biotic(sessile and errant infauna, as well as epibenthic predators), and abiotic(exposure time of a plot, sediment particle size,penetrability, and water content) variables, as well as the availability of resources(sediment organic matter content, and chlorophyll a concentration) were correlated with aRPD depth. As such, knowledge of both biotic and abiotic variables are required for a holistic understanding of sediment DO *** variables likely dictate a suite of potential aRPD depth conditions, while biota and resource availability, via bioturbation and respiration, strongly influence the observed aRPD depth. As DO conditions in marine systems will continue to change due to global climate change, elucidating these relationships are a key first step in predicting the influence decreasing DO content may have upon marine benthos.

关键词： Relationship between apparent redox potential discontinuity depth and environmental variables in soft-sediment habitats DO

Depth to the apparent redox potential discontinuity(aRPD)as a parameter of interest in marine benthic habitat quality models

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International Journal of Sediment Research 2018年第2期33卷 149-156页

作者： travis g.gerwing Kieran Cox Alyssa M.Allen gerwing Charmaine N.Carr-Harris Sarah E.Dudas Francis Juanes Ecosystem Science and Management Program University of Northern British Columbia Department of Biology University of Victoria Skeena Fisheries Commission 4. Department of Biology Vancouver Island University

The usefulness of the apparent redox potential discontinuity(aRPD) in assessments of marine benthic habitat quality was explored at two intertidal mudflats along the north Pacific coast of Canada. Two transects were established at each intertidal site, with three sediment biogeochemistry cores collected from each transect four times over the summer of 2016. Measurements of the sediment pore water dissolved oxygen(DO) content and redox(Eh) conditions were taken at the surface of the core(measured vertically), as well as at increasing depths(1 cm between readings) into the sediment(measured horizontally through predrilled holes in the biogeochemistry corer). While oxic, anoxic, oxidized, and reduced sediment pore water was observed above and below the aRPD, in general, sediment above the aRPD had higher DO content, and higher Eh values than sediment below the aRPD. Therefore, the aRPD depth can be used as a relative indicator of sediment pore water DO and Eh conditions: sediment with a deeper aRPD depth has more available DO, and the pore water has higher Eh values(more oxidized or less reduced) than sediment with a shallower aRPD depth. As such, the aRPD depth is a useful parameter to include in models that assess the quality of marine benthic habitats.

关键词： Anoxia Apparent redox potential discontinuity(aRPD) Dissolved oxygen Habitat quality Hypoxia Intertidal Marine benthos Sediment pore water

Advancements and challenges in treating advanced gastric cancer in the West

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World Journal of gastrointestinal Oncology 2019年第9期11卷 652-664页

作者： Jennifer L Leiting travis E grotz Division of Hepatobiliary and Pancreas Surgery Mayo Clinic

gastric cancer is a leading cause of cancer incidence and death *** with advanced gastric cancer benefit from a multi-modality treatment *** oncologic resection with negative margins and complete lymphadenectomy plays a crucial role in long-term survival for patients with resectable *** utilization of minimally invasive techniques for gastric cancer has been slowly increasing and is proving to be both technically and oncologically *** chemotherapy is the current standard of care for advanced gastric cancer.A variety of chemotherapy regimens have been used with the combination of docetaxel,oxaliplatin,5-fluorouracil,and leucovorin being the current recommendation given its superior ability to induce a complete pathologic response and prolong *** use of radiation has been more controversial with its optimal place in the treatment sequence being *** are current ongoing studies assessing the impact of radiation as an adjunct or in place of *** treatments(e.g.,trastuzumab for human epidermal growth factor receptor 2 positive tumors and pembrolizumab for programmed death-ligand 1 positive tumors)are showing promise and are part of a continued emphasis on individualized *** chemotherapy may also play a role in preventing peritoneal recurrences for patients with high risk *** treatment of patients with advanced gastric cancer in the West continues to advance and improve with a better understanding of optimal treatment sequences and the utilization of personalized treatment regimens.

关键词： gastric cancer D2 lymphadenectomy Minimally invasive surgery Neoadjuvant chemotherapy Chemoradiation Targeted treatments

Investigation of star formation toward the Sharpless 155 H II region

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Research in Astronomy and Astrophysics 2014年第10期14卷 1269-1278页

作者： Ya-Fang Huang Jin-Zeng Li travis A.Rector Zhou Fan National Astronomical Observatories Chinese Academy of Sciences University of Alaska Anchorage 3211 Providence DriveAnchorage

We present a comprehensive study of star formation toward the H II re- gion Sharpless 155 （$155）. Star-formation activities therein were investigated based on multi-wavelength data from optical to the far-infrared. The surface density distri- bution of selected 2MASS sources toward S 155 indicates the existence of a compact cluster, which is spatially consistent with the position of the exciting source of the Htt region, HD 217086. A sample of more than 200 sources with excessive emission in the infrared were selected based on their 2MASS color indices. The spatial distri- bution of the sample sources reveals the existence of three young subclusters in this region, among which subcluster A is spatially coincident with the bright rim of the H II region. In addition, photometric data from the WISE survey were used to identify and classify young stellar objects （YSOs）. To further explore the evolutionary stages of the candidate YSOs, we fit the spectral energy distributions of 44 sources, which led to the identification of 14 Class I, 27 Class II and 3 Class Ⅲ YSOs. The spatial distribu- tion of the classified YSOs at different evolutionary stages presents a spatiotemporal gradient, which is consistent with a scenario of sequential star formation. On the other hand, Herschel PACS observations toward the interface between S 155 and the ambi- ent molecular cloud disclose an arc-shaped dust layer, the origin of which could be attributed to the UV dissipation from early type stars, e.g. HD 217061, in S155. Four dusty cores were revealed by the Herschel data, which hints at new generations of star formation.

关键词： ISM H II regions -- stars formation -- stars pre-main sequence --infrared stars

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Irrigation's effect and applied selection on the fiber quality of Ethyl MethaneSulfonate(EMS)treated upland cotton(gossypium hirsutum L.)

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Journal of Cotton Research 2018年第4期1卷 1-11页

作者： WITT travis W ULLOA Mauricio PELLETIER Mathew g. MENDU Venugopal RITCHIE glen L. Plant and Soil Science Department Texas Tech University USDA-ARS PA CSRL Plant Stress and Germplasm Development Research USDA-ARS Cotton Production and Processing Research Laboratory

Background: Producing rainfed cotton(gossypium hirsutum L.) with high fiber quality has been challenging in the Texas High Plains because of extended periods of insufficient rainfall during sensitive boll developmental *** variation created by Ethyl MethaneSulfonate(EMS) mutagen has successfully improved fiber quality of cotton. However, little is known about the effect of water deficit environments on fiber quality. Three EMS treated populations were advanced from the first to the fourth generation(M1 to M4) as bulk harvested populations. In2014, single-plant divergent selection was applied based on perceived morphological and agronomic differences seen during and at the end of the ***: Analyses from these selections in 2014-2016 showed significant(Pgth, strength, uniformity, and elongation) when compared with the original non-treated EMS source; some selections were found to have excellent fiber quality under diverse ***: Some of these selections are being considered for germplasm release and could be useful for improving the fiber quality of cotton under water limited conditions, thereby helping to ensure the long-term survival of the cotton industry on the Texas High Plains.

关键词： Breeding Drought EMS Ethyl MethaneSulfonate Fiber quality Selection

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Complete temporal characterization of a single photon

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Light(Science & Applications) 2015年第1期4卷 337-342页

作者： Zhongzhong Qin Adarsh S Prasad travis Brannan Andrew MacRae A Lezama AI Lvovsky Institute for Quantum Science and Technology University of CalgaryAlberta T2N1N4Canada Quantum Institute for Light and Atoms State Key Laboratory of Precision SpectroscopyEast China Normal UniversityShanghai 200062China Department of Physics University of CaliforniaBerkeleyCA 94720USA Institute of Physics Faculty of EngineeringUniversity of the RepublicJ.Herrera y Reissig 565Montevideo 11300Uruguay Russian Quantum Centre 100 Novaya St.SkolkovoMoscow 143025Russia Canadian Institute for Advanced Research 180 Dundas Street WestTorontoOntario M5G 1Z8Canada

Precise information about the temporal mode of optical states is crucial for optimizing their interaction efficiency between themselves and/or with matter in various quantum communication *** we propose and experimentally demonstrate a method of determining both the real and imaginary components of a single photon’s temporal density matrix by measuring the autocorrelation function of the photocurrent from a balanced homodyne detector at multiple local oscillator *** test our method on single photons heralded from biphotons generated via four-wave mixing in an atomic vapor and obtain excellent agreement with theoretical predictions for several settings.

关键词： autocorrelation matrix polychromatic optical heterodyne tomography single photon temporal mode function

Black soldier fly(Diptera:Stratiomyidae)larval heat generation and management

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Insect Science 2023年第4期30卷 964-974页

作者： Chujun Li Nicola F.Addeo travis W.Rusch Aaron M.Tarone Jeffery K.Tomberlin Department of Entomology Texas A&M UniversityCollege StationTexas State Key Laboratory of Biocontrol School of Life ScienceSun Yat-sen UniversityGuangzhouChina guangzhou Unique Biotechnology Co. LtdGuangzhouChina Department of Veterinary Medicine and Animal Production University of Napoli Federico llNapoliItaly

Mass production of black soldier fly,Hermetia illucens(L.)(Diptera:Stra-tiomyidae),larvae results in massive heat generation,which impacts facility management,waste conversion,and larval *** tested daily substrate temperatures with dif-ferent population densities(i.e.,0,500,1000,5000,and 10000 larvae/pan),different pop-ulation sizes(i.e.,166,1000,and 10000 larvae at a fixed feed ratio)and air temperatures(i.e.,20 and 30℃)on various production *** of shifting larvae from 30 to 20℃on either day 9 or 11 were also *** activity increased substrate tem-peratures significantly(i.e.,at least 10℃above air temperatures).Low air temperature favored growth with the higher population sizes while high temperature favored growth with low population *** greatest average individual larval weights(e.g.,0.126 and 0.124 g)and feed conversion ratios(e.g.,1.92 and 2.08 g/g)were recorded for either 10000 larvae reared at 20℃or 100 larvae reared at 30 *** temperatures from high(30℃)to low(20℃)in between(~10-d-old larvae)impacted larval production weights(16%increases)and feed conversion ratios(increased 14%).Facilities should consider the impact of larval density,population size,and air temperature during black soldier fly mass production as these factors impact overall larval production.

关键词： Allee effect density Hermetia illucens industry substrate heat thermal ecology

Novel approaches to therapeutics in pancreatic adenocarcinoma: vitamin C and tumor treatment fields

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Journal of Cancer Metastasis and Treatment 2021年第1期7卷 284-299页

作者： Laith Abushahin travis Jones Jonathan Song Terence M.Williams Haseebah Shahzad Anne Noonan Arthur g.James Comprehensive Cancer Center and Richard J.Solove Research Institute The Ohio State University Medical CenterColumbusOH 43210USA Department of Internal Medicine Division of Medical OncologyThe Ohio State UniversityColumbusOH 43210USA Department of Mechanical&Aerospace Engineering The Ohio State UniversityColumbusOH 43210USA Department of Radiation Oncology The Ohio State University Medical CenterColumbusOH 43210USA

Pancreatic ductal adenocarcinoma(PDAC)is a lethal disease with limited therapeutic *** extensive clinical research over the past several decades,meaningful improvements in care standards have been challenging to *** efforts are underway on several fronts,including cytotoxic chemotherapy combinations,immunotherapy,and targeted *** this review,we chose to focus less on mainstream avenues of clinical research in PDAC and highlight some novel and innovative research efforts that are typically outside the spotlight of *** of these novel approaches include pharmacologic vitamin C and electromagnetic *** review’s scope is to present the biological basis of the anti-cancer potential and the early clinical data,as well as the future landscape of these agents,including ongoing clinical trials in these therapeutic avenues.

关键词： Pancreas cancer vitamin C ascorbate tumor treatment fields induced electromagnetic field electromagnetic field therapy

Concurrent multi-peak Bragg coherent x-ray diffraction imaging of 3D nanocrystal lattice displacement via global optimization

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npj Computational Materials 2023年第1期9卷 1579-1590页

作者： Siddharth Maddali travis D.Frazer Nazar Delegan Katherine J.Harmon Sean E.Sullivan Marc Allain Wonsuk Cha Alan Dibos Ishwor Poudyal Saugat Kandel Youssef S.g.Nashed F.Joseph Heremans Hoydoo You Yue Cao Stephan O.Hruszkewycz Materials Science Division Argonne National LaboratoryLemontIL 60439USA Center for Molecular Engineering Argonne National LaboratoryLemontIL 60439USA Aix-Marseille Univ CNRSCentrale MarseilleInstitut FresnelMarseilleFrance X-ray Science Division Argonne National LaboratoryLemontIL 60439USA Center for Nanoscale Materials Argonne National LaboratoryLemontIL 60439USA Mathematics&Computer Science Division Argonne National LaboratoryLemontIL 60439USA Pritzker School of Molecular Engineering University of Chicago5640 South Ellis AvenueChicagoIL 60637USA SLAC National Accelerator Laboratory Menlo ParkCAUSA

In this paper we demonstrated a method to reconstruct vector-valued lattice distortion fields within nanoscale crystals by optimization of a forward model of multi-reflection Bragg coherent diffraction imaging(MR-BCDI)*** method flexibly accounts for geometric factors that arise when making BCDI measurements,is amenable to efficient inversion with modern optimization toolkits,and allows for globally constraining a single image reconstruction to multiple Bragg peak *** is enabled by a forward model that emulates the multiple Bragg peaks of a MR-BCDI experiment from a single estimate of the 3D crystal *** present this forward model,we implement it within the stochastic gradient descent optimization framework,and we demonstrate it with simulated and experimental data of nanocrystals with inhomogeneous internal lattice *** find that utilizing a global optimization approach to MR-BCDI affords a reliable path to convergence of data which is otherwise challenging to reconstruct.

关键词： optimization coherent lattice