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Balch CM

E Crosbie, J-S Youn, B Balch, A Wonaschütz, T Shingler, Z Wang, W C Conant, E A Betterton, A Sorooshian
A 2-year data set of measured CCN (cloud condensation nuclei) concentrations at 0.2 % supersaturation is combined with aerosol size distribution and aerosol composition data to probe the effects of aerosol number concentrations, size distribution and composition on CCN patterns. Data were collected over a period of 2 years (2012-2014) in central Tucson, Arizona: a significant urban area surrounded by a sparsely populated desert. Average CCN concentrations are typically lowest in spring (233 cm(-3)), highest in winter (430 cm(-3)) and have a secondary peak during the North American monsoon season (July to September; 372 cm(-3))...
February 10, 2015: Atmospheric Chemistry and Physics
J Balch, C Guéguen
In situ measurements of labile metal species using diffusive gradients in thin films (DGT) passive samplers are based on the diffusion rates of individual species. Although most studies have dealt with chemically isolated humic substances, the diffusion of dissolved organic matter (DOM) across the hydrogel is not well understood. In this study, the diffusion coefficient (D) and molecular weight (MW) of 11 aquatic DOM and 4 humic substances (HS) were determined. Natural, unaltered aquatic DOM was capable of diffusing across the diffusive gel membrane with D values ranging from 2...
January 2015: Chemosphere
Roshni Rao, David Euhus, Helen G Mayo, Charles Balch
IMPORTANCE: Recent data from clinical trials have challenged traditional thinking about axillary surgery in patients with breast cancer. OBJECTIVES: To summarize evidence regarding the role of axillary interventions (surgical and nonsurgical) in breast cancer treatment and to review the association of these axillary interventions with recurrence of axillary node metastases, mortality, and morbidity outcomes in patients with breast cancer. EVIDENCE REVIEW: Ovid MEDLINE (1946-July 2013), Cochrane Database of Systematic Reviews (2005-July 2013), Cochrane Database of Abstracts of Reviews of Effects (1994-July 2013), and Cochrane Central Register of Controlled Trials (1989-July 2013) were searched for publications on axillary interventions in breast cancer...
October 2, 2013: JAMA: the Journal of the American Medical Association
Jennifer K Balch, Tara J Massad, Paulo M Brando, Daniel C Nepstad, Lisa M Curran
Anthropogenic understorey fires affect large areas of tropical forest, yet their effects on woody plant regeneration post-fire remain poorly understood. We examined the effects of repeated experimental fires on woody stem (less than 1 cm at base) mortality, recruitment, species diversity, community similarity and regeneration mode (seed versus sprout) in Mato Grosso, Brazil. From 2004 to 2010, forest plots (50 ha) were burned twice (B2) or five times (B5), and compared with an unburned control (B0). Stem density recovered within a year after the first burn (initial density: 12...
June 5, 2013: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
Michael J Sladden, Charles Balch, David A Barzilai, Daniel Berg, Anatoli Freiman, Teenah Handiside, Sally Hollis, Marko B Lens, John F Thompson
BACKGROUND: Cutaneous melanoma accounts for 75% of skin cancer deaths. Standard treatment is surgical excision with a safety margin some distance from the borders of the primary tumour. The purpose of the safety margin is to remove both the complete primary tumour and any melanoma cells that might have spread into the surrounding skin.Excision margins are important because there could be trade-off between a better cosmetic result but poorer long-term survival if margins become too narrow...
2009: Cochrane Database of Systematic Reviews
Anna M Voltura, Theodore N Tsangaris, Gedge D Rosson, Lisa K Jacobs, Jaime I Flores, Navin K Singh, Pedram Argani, Charles M Balch
BACKGROUND: Retrospective studies have shown that occult nipple-areolar complex (NAC) involvement in breast cancer is low, occurring in 6-10% of women undergoing skin-sparing mastectomy (SSM). The cosmetic result and high patient satisfaction of nipple-sparing mastectomy (NSM) has prompted further evaluation of the oncologic safety of this procedure. METHODS: We conducted a retrospective chart review of 36 self-selected patients who underwent 51 NSM procedures between 2002 and 2007...
December 2008: Annals of Surgical Oncology
Ajay Jain, Mary Ellen Haisfield-Wolfe, Julie Lange, Nita Ahuja, Nagi Khouri, Theodore Tsangaris, Zhe Zhang, Charles Balch, Lisa K Jacobs
BACKGROUND: As a complement to sentinel node dissection (SLND), we evaluated ultrasound-guided fine-needle aspiration (USFNA) of normal and abnormal axillary nodes in breast cancer patients. We hypothesized that USFNA would be accurate for primary breast tumors larger than 2 cm. METHODS: We retrospectively reviewed 68 patients who underwent 69 preoperative USFNAs from 2003 to 2005. The results of 65 preoperative USFNA were compared with the results of SLND or axillary node dissection (ALND) for concordance...
February 2008: Annals of Surgical Oncology
M R Story, E M Gaughan, G A Andrews, S Balch
A 14-month-old male Quarter horse was presented for evaluation of a grade 3 out of 5 (grade 0 = sound; grade 5 = non-weight bearing) right rear lameness. A firm, 8 x 16 cm mass was palpable at the caudal medial aspect of the distal tibia and proximal tarsal region of the right hind limb. A percutaneous needle aspirate contained mesenchymal cells that were moderate to large in size with single, oblong nuclei. Differential diagnoses included fibrous hyperplasia, fibroma, or well-differentiated fibrosarcoma. Excisional biopsy for both definitive diagnosis and treatment was offered and selected by the owner...
2005: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
Rochelle L White-Morris, Marilyn M Olmstead, Alan L Balch, O Elbjeirami, Mohammad A Omary
The preparation of three isonitrile complexes (CyNC)Au(I)Cl, (CyNC)Au(I)Br, and (CyNC)Au(I)I, along with their structural and spectral characterization, are reported. X-ray crystal structures reveal that these crystallize in the same space group and have closely related structures. The structures involve pleated chains of linear, two-coordinate monomers that are arranged in a head-tail fashion. However, these chains vary significantly in the degree of aurophilic interactions among the individual molecules. Thus, (CyNC)Au(I)Cl forms infinite chains with alternating Au...
October 20, 2003: Inorganic Chemistry
Charles M Balch
No abstract text is available yet for this article.
April 2002: ANZ Journal of Surgery
Joe H. Satcher, Marilyn M. Olmstead, Michael W. Droege, Sean R. Parkin, Bruce C. Noll, Leopold May, Alan L. Balch
The synthesis and characterization of novel tetranuclear and octanuclear iron(III) complexes with structures based on a nearly square arrangement of four iron ions are reported. Reaction of ferric nitrate, sodium acetate, and the unsymmetrical binucleating ligand HBMDP, where HBMDP is N,N,N'-tris((N-methyl)-2-benzimidazolylmethyl)-N'-methyl-1,3-diamino-2-propanol, in acetone/water yields the tetranuclear iron complex [Fe(4)(&mgr;-O)(2)(&mgr;-BMDP)(2)(&mgr;-OAc)(2)](4+), which exhibits coordination number asymmetry...
December 28, 1998: Inorganic Chemistry
C M Balch, S J Soong, T Smith, M I Ross, M M Urist, C P Karakousis, W J Temple, M C Mihm, R L Barnhill, W R Jewell, H J Wanebo, R Desmond
BACKGROUND: The Intergroup Melanoma Surgical Trial began in 1983 to examine the optimal surgical margins of excision for primary melanomas of intermediate thickness (i.e., 1-4 mm). There is now a median 10-year follow-up. METHODS: There were two cohorts entered into a prospective multi-institutional trial: (1) 468 patients with melanomas on the trunk or proximal extremity who randomly received a 2 cm or 4 cm radial excision margin and (2) 272 patients with melanomas on the head, neck, or distal extremities who received a 2 cm radial excision margin...
March 2001: Annals of Surgical Oncology
C P Karakousis, C M Balch, M M Urist, M M Ross, T J Smith, A A Bartolucci
BACKGROUND: In the past, radical margins of excision were prescribed for cutaneous melanoma based on preconceived notions rather than on hard clinical evidence. METHODS: In a prospective study of 742 patients with intermediate-thickness melanoma (1-4 mm), 470 patients with trunk or proximal extremity lesions were randomized into a 2- or 4-cm margin. Patients with distal extremity or head and neck lesions (n = 272) received uniformly a 2-cm margin. RESULTS: The overall rate of local recurrence was 3...
September 1996: Annals of Surgical Oncology
C M Balch, M M Urist, C P Karakousis, T J Smith, W J Temple, K Drzewiecki, W R Jewell, A A Bartolucci, M C Mihm, R Barnhill
BACKGROUND: A prospective, multi-institutional, randomized surgical trial involving 486 localized melanoma patients was conducted to determine whether excision margins for intermediate-thickness melanomas (1.0 to 4.0 mm) could be safely reduced from the standard 4-cm radius. METHODS: Patients with 1- to 4-mm-thick melanomas on the trunk or proximal extremities were randomly assigned to receive either a 2- or 4-cm surgical margin. RESULTS: The median follow-up time was 6 years...
September 1993: Annals of Surgery
A C Buzaid, L A Tinoco, D Jendiroba, Z N Tu, J J Lee, S S Legha, M I Ross, C M Balch, R S Benjamin
PURPOSE: To determine the prognostic significance of the size of the lymph node mass as measured by physical examination (PE) and of the size of the largest node measured by pathologic analysis (path) in patients with cutaneous melanoma and nodal metastases. PATIENTS AND METHODS: The medical records of all patients with nodal metastases seen at The University of Texas M.D. Anderson Cancer Center from January 1, 1973 to December 31, 1989 were reviewed. Patient eligibility criteria included the following: (1) availability of data describing the nodal size either by PE or by path and the number of positive nodes; (2) no history of preoperative chemotherapy or radiotherapy; and (3) no history or presence of in-transit, satellite, local, or distant metastases...
September 1995: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
M M Urist, C M Balch, S Soong, H M Shaw, G W Milton, W A Maddox
Risk factors associated with local recurrences were analyzed from a series of 3445 clinical Stage I melanoma patients. In single-factor analysis, tumor thickness, ulceration, and increasing age were highly significantly predictive of recurrence (p less than 0.00001). After 5 years of follow-up, local recurrence rates were 0.2% for tumors less than 0.76 mm thick, 2.1% for tumors 0.76 to 1.49 mm thick, 6.4% for tumors 1.5 to 3.99 mm thick, and 13.2% for tumors 4.0 mm or greater in thickness. Ulcerated melanomas recurred more often than nonulcerated lesions (11...
March 15, 1985: Cancer
U Veronesi, N Cascinelli, J Adamus, C Balch, D Bandiera, A Barchuk, R Bufalino, P Craig, J De Marsillac, J C Durand
Although wide surgical excision is the accepted treatment for thin malignant melanomas, there is reason to believe that narrower margins may be adequate. We conducted a randomized prospective study to assess the efficacy of narrow excision (excision with 1-cm margins) for primary melanomas no thicker than 2 mm. Narrow excision was performed in 305 patients, and wide excision (margins of 3 cm or more) was performed in 307 patients. The major prognostic criteria were well balanced in the two groups. The mean thickness of melanomas was 0...
May 5, 1988: New England Journal of Medicine
M L Bajt, B Schmitz, M Schachner, B Zipser
We are reporting on the evolutionary conservation of carbohydrate epitope families from vertebrate to leech. 1) The sulfated L2/HNK-1 carbohydrate epitope (Abo T, Balch CM (1981): J Immunol 127:1024-1029; Kruse J, Mailhammer R, Wernecke H, Faissner A, Timpl R, Schachner M (1984): Nature 311:153-155) is detected on glycoproteins of leech neurons using monoclonal antibodies (mAbs) L2 (336) and HNK-1. 2) Three rat mAbs, L3, L4, and L5, bind to leech nerve and muscle. The L3, L4, and L5 epitopes are localized to a group of mannosidic leech glycoproteins originally identified through mAbs Lan3-2 (Hogg N, Flaster M, Zipser B (1983): J Neurosci Res 9:445-457 and Laz6-189 (McRorie JW III, Zipser B (1988): "Cell Culture Approaches to Invertebrate Neuroscience...
November 1990: Journal of Neuroscience Research
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