Publications and Research

 

Follow

Works from 2014

PDF

A Broadly Implementable Research Course in Phage Discovery and Genomics for First-Year Undergraduate Students, Tuajuanda C. Jordan, Sandra H. Burnett, Susan Carson, Steven M. Caruso, Kari Clase, Randall J. DeJong, John J. Dennehy, Dee R. Denver, David Dunbar, Sarah C. R. Elgin, Ann M. Findley, Chris R. Gissendanner, Urszula P. Golebiewska, Nancy Guild, Grant A. Hartzog, Wendy H. Grillo, Gail P. Hollowell, Lee E. Hughes, Allison Johnson, Rodney A. King, Lynn O. Lewis, Wei Li, Frank Rosenzweig, Michael R. Rubin, Margaret S. Saha, James Sandoz, Christopher D. Shaffer, Barbara Taylor, Louise Temple, Edwin Vazquez, Vassie C. Ware, Lucia P. Barker, Kevin W. Bradley, Deborah Jacobs-Sera, Welkin H. Pope, Daniel A. Russell, Steven G. Cresawn, David Lopatto, Cherly P. Bailey, and Graham F. Hatfull

PDF

Away from home meals: associations with biomarkers of chronic disease and dietary intake in American adults, NHANES 2005-2010, Ashima K. Kant, Melanie I. Whitley, and Barry I. Graubard

PDF

Behavioral and Neuroanatomical Abnormalities in Pleiotrophin Knockout Mice, Jason W. Krellman, Henry H. Ruiz, Veronica A. Marciano, Bracha Mondrow, and Susan D. Croll

PDF

Behavioral and Emotional Dynamics of Two People Struggling to Reach Consensus about a Topic on Which They Disagree, Levent Kurt, Katharina G. Kugler, Peter T. Coleman, and Larry S. Liebovitch

PDF

Regional Integration and National Social Policies, Mary Anne Madeira

PDF

Carbon losses from pyrolysed and original wood in a forest soil under natural and increased N deposition, B. Maestrini, S. Abiven, N. Singh, J. Bird, and M. W. I. Schmidt

PDF

The effect of age on neural processing of pleasant soft touch stimuli, April C. May, Jennifer L. Stewart, Susan F. Tapert, and Martin P. Paulus

PDF

Light Dulls and Darkens Bird Eggs, Johanna Y. Navarro and David C. Lahti

PDF

Enzymatic Oxidation of Cholesterol: Properties and Functional Effects of Cholestenone in Cell Membranes, Maarit Neuvonen, Moutusi Manna, Sini Mokkila, Matti Javanainen, Tomasz Rog, Zheng Liu, Robert Bittman, Ilpo Vattulainen, and Elina Ikonen

PDF

Engaging with Research and Resources in Music History Courses, Jennifer Oates

PDF

Epidemiology of Undiagnosed Trichomoniasis in a Probability Sample of Urban Young Adults, Susan M. Rogers, Charles F. Turner, Marcia Hobbs, William C. Miller, Sylvia Tan, Anthony M. Roman, Elizabeth Eggleston, Maria A. Villarroel, Laxminarayana Ganapathi, James R. Chromy, and Emily Erbelding

PDF

Gender-Based Screening for Chlamydial Infection and Divergent Infection Trends in Men and Women, Susan M. Rogers, Charles F. Turner, William C. Miller, Emily Erbelding, Elizabeth Eggleston, Sylvia Tan, Anthony Roman, Marcia Hobbs, James Chromy, Ravikiran Muvva, and Laxminarayana Ganapathi

PDF

Can Establishment Success Be Determined through Demographic Parameters? A Case Study on Five Introduced Bird Species, Ana Sanz-Aguilar, José D. Anadón, Pim Edelaar, Martina Carrete, and José Luis Tella

PDF

Feminism, the Left, and Postwar Literary Culture by Kathlene McDonald (review), Danica Savonick

PDF

Marvelous Transformations: An Anthology of Fairy Tales and Contemporary Critical Perspectives (review), Veronica L. Schanoes

PDF

Emotional bias of cognitive control in adults with childhood attention-deficit/hyperactivity disorder, Kurt P. Schulz, Anne-Claude V. Bédard, Jin Fan, Suzanne M. Clerkin, Danai Dima, Jeffrey H. Newcorn, and Jeffrey M. Halperin

PDF

Conditions under which Arousal Does and Does Not Elevate Height Estimates, Justin Storbeck and Jeanine K. Stefanucci

PDF

Discovering Jewish Studies Collections in Academic Libraries: A Practical Guide, Izabella Taler

PDF

Elevated carbon dioxide and ozone alter productivity and ecosystem carbon content in northern temperate forests, Alan F. Talhelm, Kurt S. Pregitzer, Mark E. Kubiske, Donald R. Zak, Courtney E. Campany, Andrew J. Burton, Richard E. Dickson, George R. Hendrey, J G. Isebrands, Keith F. Lewin, John Nagy, and David F. Karnosky

PDF

Hemispheric Asymmetry in New Neurons in Adulthood Is Associated with Vocal Learning and Auditory Memory, Shuk C. Tsoi, Utsav V. Aiya, Kobi D. Wasner, Mimi L. Phan, Carolyn L. Pytte, and David S. Vicario

PDF

Improving Mycobacterium bovis Bacillus Calmette-Guèrin as a Vaccine Delivery Vector for Viral Antigens by Incorporation of Glycolipid Activators of NKT Cells, Manjunatha M. Venkataswamy, Tony W. Ng, Shalu S. Kharkwal, Leandro J. Carreño, Alison J. Johnson, Shajo Kunnath-Velayudhan, Zheng Liu, Robert Bittman, Peter J. Jervis, Liam R. Cox, Gurdyal S. Besra, Xiangshu Wen, Weiming Yuan, Moriya Tsuji, Xiangming Li, David D. Ho, John Chan, Sunhee Lee, Richard Frothingham, and Barton F. Haynes

PDF

Altered Regional and Circuit Resting-State Activity Associated with Unilateral Hearing Loss, Xingchao Wang, Yang Fan, Fu Zhao, Zhenmin Wang, Jianqiao Ge, Kai Zhang, Zhixian Gao, Jia-Hong Gao, Yihong Yang, Jin Fan, Qihong Zou, and Pinan Liu

PDF

Data-based perfect-deficit approach to understanding climate extremes and forest carbon assimilation capacity, Suhua Wei, Chuixiang Yi, George Hendrey, Timothy Eaton, Gerald Rustic, Shaoqiang Wang, Heping Liu, Nir Y. Krakauer, Weiguo Wang, Ankur R. Desai, Leonardo Montagnani, Kyaw Tha Paw U, Matthias Falk, Andrew Black, Christian Bernhofer, Thomas Grünwald, Tuomas Laurila, Alessandro Cescatti, Eddy Moors, Rosvel Bracho, and Riccardo Valentini

PDF

Strategies to Reduce the Harmful Effects of Extreme Heat Events: A Four-City Study, Jalonne L. White-Newsome, Sabrina McCormick, Natalie Sampson, Miatta A. Buxton, Marie S. O’Neill, Carina J. Gronlund, Linda Catalano, Kathryn C. Conlon, and Edith A. Parker

PDF

Comorbidity of Infectious Diseases and Anxiety Disorders in Adults and Its Association With Quality of Life: A Community Study, Cornelia Witthauer, Andrew T. Gloster, Andrea Hans Meyer, Renee D. Goodwin, and Roselind Lieb

PDF

Uranium and Radon in Private Bedrock Well Water in Maine: Geospatial Analysis at Two Scales, Qiang Yang, Paul Smitherman, C. T. Hess, Charles W. Culbertson, Robert G. Marvinney, Andrew E. Smith, and Yan Zheng

PDF

Warming climate extends dryness-controlled areas of terrestrial carbon sequestration, Chuixiang Yi, Suhua Wei, and George Hendrey

Works from 2013

PDF

Structure–Activity Relationships and Molecular Modeling of Sphingosine Kinase Inhibitors, Dong Jae Baek, Neil MacRitchie, Nahoum G. Anthony, Simon P. Mackay, Susan Pyne, Nigel J. Pyne, and Robert Bittman

PDF

The Enemy within: Propagation of Aberrant Corticostriatal Learning to Cortical Function in Parkinson’s Disease, Jeff A. Beeler, Giselle Petzinger, and Michael W. Jakowec

PDF

Three times blind: The wandering, wondering path to asking the right question, Bradley W. Bergey

PDF

Centrosomal kinase Nek2 Cooperates with Oncogenic Pathways to Promote Metastasis, T K. Das, Dibyendu Dana, Suneeta S. Paroly, S. K. Perumal, S. Singh, H. Jhun, J. Pendse, R. L. Cagan, T. T. Talele, and Sanjai Kumar

PDF

Mission Work, Conversion, and the Italian Immigrant in Turn-of-the-century New York City, Alexandra A. de Luise

PDF

Assessing Continuous Contamination Discharge from a Combined Sewer Outfall (CSO) into a Tidal Wetland Creek: Bacteriological and Heavy Metals Indicators, Timothy Eaton, Gregory D. O'Mullan, and Ashaki A. Rouff

PDF

Modified impact of emotion on temporal discrimination in a transgenic rat model of Huntington disease, Alexis Faure, Mouna Es-sesddiqi, Bruce L. Brown, Hoa P. Nguyen, Olaf Riess, Stephan von Hörsten, Pascale Le Blanc, Nathalie Desvignes, Bruno Bozon, Nicole El Massioui, and Valérie Doyère

PDF

Earliest Archaeological Evidence of Persistent Hominin Carnivory, Joseph V. Ferraro, Thomas W. Plummer, Briana L. Pobiner, James S. Oliver, Laura C. Bishop, David R. Braun, Peter W. Ditchfield, John W. Seaman, Katie M. Binetti, John W. Seaman, Fritz Hertel, and Richard Potts

PDF

Effects of Texture Component Orientation on Orientation Flow Visibility for 3-D Shape Perception, Michelle L. Fowler and Andrea Li

PDF

Brief Monocular Deprivation as an Assay of Short-Term Visual Sensory Plasticity in Schizophrenia - "The Binocular Effect", John J. Foxe, Sheralyn Yeap, and Victoria M. Leavitt

PDF

Transitions in nirS-type denitrifier diversity, community composition, and biogeochemical activity along the Chesapeake Bay estuary, Christopher A. Francis, Gregory D. O'Mullan, Jeffrey C. Cornwell, and Bess B. Ward

PDF

Lipid Metabolites Enhance Secretion Acting on SNARE Microdomains and Altering the Extent and Kinetics of Single Release Events in Bovine Adrenal Chromaffin Cells, Virginia García-Martínez, José Villanueva, Cristina J. Torregrosa-Hetland, Robert Bittman, Ashlee Higdon, Victor M. Darley-Usmar, Bazbek Davletov, and Luis M. Gutiérrez

PDF

β-Catenin-Independent Activation of TCF1/LEF1 in Human Hematopoietic Tumor Cells through Interaction with ATF2 Transcription Factors, Luca Grumolato, Guizhong Liu, Tomomi Haremaki, Sathish Kumar Mungamuri, Phyllus Mong, Gal Akiri, Pablo Lopez-Bergami, Adriana Arita, Youssef Anouar, Marek Mlodzik, Ze'ev A. Ronai, Joshua Brody, Daniel C. Weinstein, and Stuart A. Aaronson

PDF

Diversified Microbiota of Meconium Is Affected by Maternal Diabetes Status, Jianzhong Hu, Yoko Nomura, Ali Bashir, Heriberto Fernandez-Hernandez, Steven Itzkowitz, Zhiheng Pei, Joanne Stone, Holly Loudon, and Inga Peter

PDF

30 Days in the Life: Daily Nutrient Balancing in a Wild Chacma Baboon, Caley A. Johnson, David Raubenheimer, Jessica M. Rothman, David Clarke, and Larissa Swedell

PDF

Cardiovascular Disease Hospitalizations in Relation to Exposure to the September 11, 2001 World Trade Center Disaster and Posttraumatic Stress Disorder, Hannah T. Jordan, Steven D. Stellman, Alfredo Morabia, Sara A. Miller‐Archie, Howard Alper, Zoey Laskaris, Robert M. Brackbill, and James E. Cone

PDF

Integration of Nodal and BMP Signals in the Heart Requires FoxH1 to Create Left–Right Differences in Cell Migration Rates That Direct Cardiac Asymmetry, Kari F. Lenhart, Nathalia G. Holtzman, Jessica R. Williams, and Rebecca D. Burdine

PDF

Effects of painful stimulation and acupuncture on attention networks in healthy subjects, Gang Liu, Hui-juan Ma, Pan-pan Hu, Yang-hua Tian, Shen Hu, Jin Fan, and Kai Wang

PDF

The variability of autophagy and cell death susceptibility, Ben Loos, Anna-Mart Engelbrecht, Richard A. Lockshin, Daniel J. Klionsky, and Zahra Zakeri

PDF

The Choral Works of Hamish MacCunn (1868–1916), Jennifer Oates

PDF

‘What’s in the NIDDK CDR?’—public query tools for the NIDDK central data repository, Huaqin Pan, Mary-Anne Ardini, Vesselina Bakalov, Michael DeLatte, Paul Eggers, Laxminarayana Ganapathi, Craig R. Hollingsworth, Joshua Levy, Sheping Li, Joseph Pratt, Norma Pugh, Ying Qin, Rebekah Rasooly, Helen Ray, Jean E. Richardson, Amanda Flynn Riley, Susan M. Rogers, Sylvia Tan, Charles F. Turner, Stacie White, and Philip C. Cooley

PDF

Trends in Citations to Books on Epidemiological and Statistical Methods in the Biomedical Literature, Miquel Porta, Jan P. Vandenbroucke, John P. A. Ioannidis, Sergio Sanz, Esteve Fernandez, Raj Bhopal, Alfredo Morabia, Cesar Victora, and Tomàs Lopez

PDF

Womb Envy: Jean-Luc Godard's BREATHLESS, A WOMAN IS A WOMAN, and HAIL MARY, Caroline Rupprecht and Caroline Rupprecht

PDF

It’s Time to Fear! Interval Timing in Odor Fear Conditioning in Rats, Kiseko Shionoya, Chloé Hegoburu, Bruce L. Brown, Regina M. Sullivan, Valérie Doyère, and Anne-Marie Mouly

PDF

Cancer Incidence in World Trade Center Rescue and Recovery Workers, 2001–2008, Samara Solan, Sylvan Wallenstein, Moshe Shapiro, Susan L. Teitelbaum, Lori Stevenson, Anne Kochman, Julia Kaplan, Cornelia Dellenbaugh, Amy Kahn, F. Noah Biro, Michael Crane, Laura Crowley, Janice Gabrilove, Lou Gonsalves, Denise Harrison, Robin Herbert, Benjamin Luft, Steven B. Markowitz, Jacqueline Moline, and Xiaoling Niu

PDF

Revisiting the evolution of mouse LINE-1 in the genomic era, Akash Sookdeo, Crystal M. Hepp, Marcella A. McClure, and Stéphane Boissinot

PDF

Peripheral Nerve Injury Is Associated with Chronic, Reversible Changes in Global DNA Methylation in the Mouse Prefrontal Cortex, Maral Tajerian, Sebastian Alvarado, Magali Millecamps, Pascal Vachon, Cecilia Crosby, M. Catherine Bushnell, Moshe Szyf, and Laura S. Stone

PDF

Dominance of Orientation over Frequency in the Perception of 3-D Slant and Shape, Danny M. Tam, Ji Shin, and Andrea Li

PDF

Lizards and LINEs: Selection and Demography Affect the Fate of L1 Retrotransposons in the Genome of the Green Anole (Anolis carolinensis), Marc Tollis and Stéphane Boissinot

PDF

The Roles of Sphingosine Kinase 1 and 2 in Regulating the Metabolome and Survival of Prostate Cancer Cells, Francesca Tonelli, Manal Alossaimi, Viswanathan Natarajan, Irina Gorshkova, Evgeny Berdyshev, Robert Bittman, David G. Watson, Susan Pyne, and Nigel J. Pyne

PDF

Functional Neural Correlates of Attentional Deficits in Amnestic Mild Cognitive Impairment, Nicholas T. Van Dam, Mary Sano, Effie M. Mitsis, Hillel T. Grossman, Xiaosi Gu, Yunsoo Park, Patrick R. Hof, and Jin Fan

PDF

The officialization of Spanish in mid-nineteenth-century Spain: the Academy’s authority, Laura Villa

PDF

Into the Heart of the Great Wilderness: Understanding Baldwin’s Quarrel with Négritude, Christopher Winks

PDF

Biome Q10 and Dryness, Chuixiang Yi, Daniel Ricciuto, and George Hendrey

Works from 2012

PDF

Accumulation and Rapid Decay of Non-LTR Retrotransposons in the Genome of the Three-Spine Stickleback, Eryn Blass, Michael Bell, and Stéphane Boissinot

PDF

Optimal Control of Katabatic Flows within Canopies, Hongbin Chen and Chuixiang Yi

PDF

What Can Phages Tell Us about Host-Pathogen Coevolution?, John J. Dennehy

PDF

Coupling of fog and marine microbial content in the near-shore coastal environment, M. E. Ducker, Gregory D. O'Mullan, K. C. Weathers, A. R. Juhl, and M. Uriarte

PDF

Functional deficits of the attentional networks in autism, Jin Fan, Silvia Bernardi, Nicholas T. Dam, Evdokia Anagnostou, Xiaosi Gu, Laura Martin, Yunsoo Park, Xun Liu, Alexander Kolevzon, Latha Soorya, David Grodberg, Eric Hollander, and Patrick R. Hof

PDF

But are they Connected?: A Report on the Queens College Technology Survey of the Use of Ubiquitous Tools for Learning, Eva M. Fernández and Michelle C. Fraboni

PDF

Effects of motivation on reward and attentional networks: an fMRI study, Iliyan Ivanov, Xun Liu, Suzanne Clerkin, Kurt Schulz, Karl Friston, Jeffrey H. Newcorn, and Jin Fan

PDF

The Need for Continued Activism in Black Librarianship, Andrew P. Jackson

PDF

Cannabis-Dependence Risk Relates to Synergism between Neuroticism and Proenkephalin SNPs Associated with Amygdala Gene Expression: Case-Control Study, Didier Jutras-Aswad, Michelle M. Jacobs, Georgia Yiannoulos, Panos Roussos, Panos Bitsios, Yoko Nomura, Xun Liu, and Yasmin L. Hurd

PDF

Spatial variability in levels of benzene, formaldehyde, and total benzene, toluene, ethylbenzene and xylenes in New York City: a land-use regression study, Iyad Kheirbek, Sarah Johnson, Zev Ross, Grant Pezeshki, Kazuhiko Ito, Holger Eisl, and Thomas Matte

PDF

Empirical evaluation of scoring functions for Bayesian network model selection, Zhifa Liu, Brandon Malone, and Changhe Yuan

PDF

Two-photon time-lapse microscopy of BODIPY-cholesterol reveals anomalous sterol diffusion in chinese hamster ovary cells, Frederik W. Lund, Michael A. Lomholt, Lukasz M. Solanko, Robert Bittman, and Daniel Wüstner

PDF

Metformin modifies the exercise training effects on risk factors for cardiovascular disease in impaired glucose tolerant adults, Steven K. Malin, Joy Nightingale, Sung-Eun Choi, Stuart R. Chipkin, and Barry Braun

PDF

Using Equivalence-Based Instruction to Increase Efficiency in Teaching Neuroanatomy, Carolyn L. Pytte and Daniel M. Fienup

PDF

The Effect of Dissolved Humic Acids on Aluminosilicate Formation and Associated Carbon Sequestration, Ashaki A. Rouff, Brian L. Phillips, Stacey G. Cochiara, and Kathryn L. Nagy

PDF

Power of the Narrator (Review), Veronica Schanoes

PDF

Fearless Children and Fabulous Monsters: Angela Carter, Lewis Carroll, and Beastly Girls, Veronica L. Schanoes

PDF

Children’s Eyewitness Identification as Implicit Moral Decision-Making, Toni Spring, Herbert D. Saltzstein, and Roger Peach

PDF

Morphine and Clonidine Synergize to Ameliorate Low Back Pain in Mice, Maral Tajerian, Magali Millecamps, and Laura S. Stone

PDF

Multi-Locus Phylogeographic and Population Genetic Analysis of Anolis carolinensis: Historical Demography of a Genomic Model Species, Marc Tollis, Gavriel Ausubel, Dhruba Ghimire, and Stéphane Boissinot

PDF

Brain Memoirs, Neuroscience, and the Self: A Review Article, Jason Tougaw

PDF

A conative educational model for an intervention program in obese youth, Jérémy Vanhelst, Laurent Béghin, Paul Stephen Fardy, Gilles Bui-Xuan, and Jacques Mikulovic

PDF

Validation of the Vivago Wrist-Worn accelerometer in the assessment of physical activity, Jérémy Vanhelst, Rémy Hurdiel, Jacques Mikulovic, Gilles Bui-Xuân, Paul Fardy, Denis Theunynck, and Laurent Béghin

PDF

Comparison of two ActiGraph accelerometer generations in the assessment of physical activity in free living conditions, Jérémy Vanhelst, Jacques Mikulovic, Gilles Bui-Xuan, Olivier Dieu, Thomas Blondeau, Paul Fardy, and Laurent Béghin

PDF

A New Nonlinear Analytical Model for Canopy Flow over a Forested Hill, Weiguo Wang and Chuixiang Yi

Works from 2011

PDF

The genome of the green anole lizard and a comparative analysis with birds and mammals, Jessica Alföldi, Federica Di Palma, Manfred Grabherr, Christina Williams, Lesheng Kong, Evan Mauceli, Pamela Russell, Craig B. Lowe, Richard Glor, Jacob D. Jaffe, David A. Ray, Stéphane Boissinot, Andrew M. Shedlock, Christopher Botka, Todd A. Castoe, John K. Colbourne, Matthew K. Fujita, Ricardo Godinez Moreno, Boudewijn F. ten Hallers, David Haussler, and Peter Novick

PDF

Impaired Structural Connectivity of Socio-Emotional Circuits in Autism Spectrum Disorders: A Diffusion Tensor Imaging Study, Stephanie H. Ameis, Jin Fan, Conrad Rockel, Aristotle N. Voineskos, Nancy J. Lobaugh, Latha Soorya, A. Ting Wang, Eric Hollander, and Evdokia Anagnostou

PDF

The Hedgehog Receptor Patched Is Involved in Cholesterol Transport, Michel Bidet, Olivier Joubert, Benoit Lacombe, Marine Ciantar, Rony Nehmé, Patrick Mollat, Lionel Brétillon, Hélène Faure, Robert Bittman, Martial Ruat, and Isabelle Mus-Veteau

PDF

The Port of Livorno and Its "Nazione Ebrea" in the Eighteenth Century: Economic Utility and Political Reforms, Francesca Bregoli

PDF

Temporal sensitivity changes with extended training in a bisection task in a transgenic rat model, Bruce L. Brown, Sophie Hohn, Alexis Faure, Stephan von Horsten, Pascale Le Blanc, Nathalie Desvignes, Nicole El Massioui, and Valerie Doyere

PDF

Noncomputable Functions in the Blub-Shub-Smale Model, Wesley Calvert, Ken Kramer, and Russell Miller

PDF

Investigating the distance limit of a metal nanoparticle based spectroscopic ruler, Subhasish Chatterjee, Jong Bum Lee, Nikesh V. Valappil, Dan Luo, and Vinod M. Menon

PDF

Science Fiction and Lyric Poetry, Seo-Young J. Chu

PDF

Factors influencing lysis time stochasticity in bacteriophage l, John J. Dennehy and Ing-Nang Wang

PDF

Bone Morphogenetic Protein Inhibition Promotes Neurological Recovery after Intraventricular Hemorrhage, Krishna Dummula, Govindaiah Vinukonda, Philip Chu, Yiping Xing, Furong Hu, Sabrina Mailk, Anna Csiszar, Caroline Chua, Peter Mouton, Robert J. Kayton, Joshua C. Brumberg, Rashmi Bansal, and Praveen Ballabh

PDF

Polycationic Glycosides, Robert Engel, Ishrat Ghani, Diego Montenegro, Marie Thomas, Barbara Klaritch-Vrana, Alejandra Castaño, Laura Friedman, Jay Leb, Leah Rothman, Heidi Lee, Craig Capodiferro, Daniel Ambinder, Eve Cere, Christopher Awad, Faiza Sheikh, JaimeLee Rizzo, Lisa-Marie Nisbett, Erika Testani, and Karin Melkonian

PDF

Panting in the Dark: The Ambivalence of Air in Cinema, Kevin L. Ferguson

PDF

Maternal Exposure to the Holocaust and Health Complaints in Offspring, Janine D. Flory, Linda M. Bierer, and Rachel Yehuda

PDF

Six Titans of the Cambridge School: A Review Article, Harvey Gram