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Koczoń P, Lewandowski W, Lipińska E, Sobczak E. m-Iodobenzoic acid complexes with selected metals: molecular structure and antimicrobial activity. J Agric Food Chem 2001; 49:2982-2986. [PMID: 11409997 DOI: 10.1021/jf001368i] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Complexes of lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, manganese, and zinc with m-iodobenzoic acid were studied. The FT-IR and FT-Raman spectra of the mentioned compounds in the solid state and water solutions were recorded and analyzed. Principal component analysis (PCA) was performed on the wavenumbers of selected bands (eight bands) occurring in the vibrational spectra. The numbers obtained as a result of this procedure characterize the electronic properties of the molecule of each complex. The antimicrobial activity of the studied compounds against selected bacteria (Escherichia coli and Bacillus subtilis) and yeast (Saccharomyces cerevisiae and Hansenula anomala) was estimated. The relationship between the chemical properties (as characterized by PCA of the IR spectra) and antimicrobial properties of the compounds was examined, and a good correlation between the two factors was found.
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Affiliation(s)
- P Koczoń
- Department of General Chemistry, Warsaw Agricultural University, Rakowiecka 26/30, 02-528 Warsaw, Poland.
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52
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Dasiewicz B, Fuks L, Lewandowski W. Effect of sodium(I), calcium(II), lanthanum(III) and thorium(IV) on the aromatic system of p-hydroxybenzoates. J Mol Struct 2001. [DOI: 10.1016/s0022-2860(00)00912-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Koczoń P, Mościbroda P, Dobrosz-Teperek K, Lewandowski W. The influence of selected metals (Mg, Ca, Sr and Ba) on the electronic system of the p-halogenobenzoic acids. J Mol Struct 2001. [DOI: 10.1016/s0022-2860(00)00913-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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54
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Bednarek E, Dobrowolski J, Dobrosz-Teperek K, Kozerski L, Lewandowski W, Mazurek A. Theoretical and experimental 1 H, 13 C, 15 N, and 17 O NMR chemical shifts for 5-halogenouracils. J Mol Struct 2000. [DOI: 10.1016/s0022-2860(00)00670-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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55
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Zwierzchowska Z, Dobrosz-Teperek K, Lewandowski W, Kołos R, Bajdor K, Dobrowolski J, Mazurek A. Vibrational spectra of 5-halogenouracils: Part I. J Mol Struct 1997. [DOI: 10.1016/s0022-2860(96)09499-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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56
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Lewandowski W, Priebe W, Koczon P, Moscibroda P, Orzechowska A. The influence of selected metals and halogens on the electronic system of benzoic acid. Anal Bioanal Chem 1996; 355:750-2. [PMID: 15045363 DOI: 10.1007/s0021663550750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/1995] [Revised: 01/09/1996] [Accepted: 01/20/1996] [Indexed: 10/26/2022]
Abstract
The influence of halogens and metals on the electronic system of the aromatic ring in lithium, sodium and potassium complexes with p-halogenobenzoic acids has been investigated by means of (13)C and (1)H NMR, IR and Raman spectroscopy and semi-empirical calculations. It has been shown that ionic potentials and electronegativities of halogens and metals are the main factors responsible for perturbations of the electronic charge distribution in the ring.
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Affiliation(s)
- W Lewandowski
- Institute of General Chemistry, Agricultural University of Warsaw, SGGW, Rakowiecka 26/30, 02-528, Warsaw, Poland
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Taft RW, Raczyńska ED, Maria PC, Leito I, Lewandowski W, Kurg R, Gal JF, Decouzon M, Anvia F. Application of experimental (FT-ICR) and theoretical (AM1) methods to the study of proton-transfer reactions for tautomerizing amidines in the gas phase. Anal Bioanal Chem 1996; 355:412-4. [PMID: 15045430 DOI: 10.1007/s0021663550412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/1996] [Revised: 02/29/1996] [Accepted: 03/06/1996] [Indexed: 11/28/2022]
Abstract
Semiempirical calculations (AM1) together with experimental mass spectrometric (FT-ICR) data indicate the imino nitrogen atom as the favoured site of protonation and the amino nitrogen atom as the site of deprotonation of the amidine group in the gas phase. For tautomerizing N-methyl-N'-phenylbenzamidine the tautomer with the phenyl group at the imino nitrogen atom weakly predominates in tautomeric mixture.
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Affiliation(s)
- R W Taft
- Department of Chemistry, University of California, CA 92717, Irvine, USA
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58
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Youngblut JM, Lewandowski W, Casper GR, Youngblut WR. Vibration in metal and non-metal incubators. Biomed Instrum Technol 1994; 28:476-80. [PMID: 7833981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The purpose of this study was to determine the amount of vibration transmitted to the surface of an incubator mattress. Empty incubators with metal (n = 12) and non-metal (n = 12) bases were monitored for vibration levels when the incubators were turned "off" and when they were turned "on." High levels of low-frequency vibration were detected in both types of incubators in both conditions. The metal incubators transmitted significantly less vibration to the mattress than did the non-metal incubators at several frequencies in the "off," the "on," and the "adjusted" conditions. These results suggest that infants experience significant whole-body vibration while lying in incubators.
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Affiliation(s)
- J M Youngblut
- Frances Payne Bolton School of Nursing, Case Western Reserve University, Cleveland, Ohio 44106-4904
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Lewandowski W, Proniewicz LM, Nakamoto K. The infrared spectra of ‘base-free’ dioxygen adducts of ruthenium(II) and osmium(II) porphyrins. Inorganica Chim Acta 1991. [DOI: 10.1016/s0020-1693(00)80243-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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60
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Proniewicz L, Paeng I, Lewandowski W, Nakamoto K. Vibrational spectra of dioxygen adducts and oxo complexes of ruthenium tetraphenylporphine (RuTPP). J Mol Struct 1990. [DOI: 10.1016/0022-2860(90)80078-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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61
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Sabo KA, Kraay C, Rudy E, Abraham T, Bender M, Lewandowski W, Lombardo B, Turk M, Dawson D. ICU family support group sessions: family members' perceived benefits. Appl Nurs Res 1989; 2:82-9. [PMID: 2719486 DOI: 10.1016/s0897-1897(89)80050-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The purpose of this research was to identify the relationship between attending an ICU family support group and the family's appraisal of stress, social support, and hope. In addition, the family members' perceived benefits of attending an ICU family support family support group session does not significantly change stress levels, feelings of hope, and social support. Analysis of data reconfirms that family members of critically ill patients have a tremendous need for information. Although findings revealed that the majority of the family members who attended the support session would recommend attending again, it is unclear whether the support session method is the most beneficial and cost-effective means to support families of critically ill patients.
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Abstract
Demographic characteristics, severity of illness, resource utilization, and outcome were compared for 351 medical ICU (MICU) and 329 ward patients of a large, urban, tertiary care hospital. Patients were similar in age, race, sex, and insurance coverage. Both MICU and ward patients had similar health status distributions 3 to 6 months before hospitalization. Severity of illness, as measured by the Acute Physiology Score was significantly higher in the MICU patients, although there was considerable overlap in the distributions. Resource utilization, as measured by the Therapeutic Intervention Scoring System (TISS), was also significantly higher in the MICU; again, the distributions of the two groups overlapped, although mostly for low values of TISS. Of the MICU sample, 28% to 30% never required active therapeutic interventions; 11% of the ward sample received active treatment. The significant overlap between MICU and ward distributions of severity of illness and resource utilization has implications for admission and discharge policies.
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Lewandowski W, Daly B, McClish DK, Juknialis BW, Youngner SJ. Treatment and care of "do not resuscitate" patients in a medical intensive care unit. Heart Lung 1985; 14:175-81. [PMID: 3844396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Youngner SJ, Lewandowski W, McClish DK, Juknialis BW, Coulton C, Bartlett ET. 'Do not resuscitate' orders. Incidence and implications in a medical-intensive care unit. JAMA 1985; 253:54-7. [PMID: 3964898 DOI: 10.1001/jama.253.1.54] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
"Do not resuscitate" (DNR) decisions were examined in a medical intensive care unit (MICU) of a 1,000-bed hospital. Seventy-one (14%) of 506 study patients were designated DNR; nine survived hospitalization. Severity of illness, age, and prior health were predictive of DNR orders; race and socioeconomic factors were not. The DNR patients consumed more resources, both before and after DNR orders. Interventions started before DNR designation were continued in at least 76% of patients. Documented justifications of DNR decisions included poor prognosis (59%), poor quality of life (24%), and patients' wishes (15%). There were no written justifications for the DNR decisions in 30 cases (42%). Although willingness to write DNR orders in an MICU and continued active treatment of DNR patients are both reassuring in a general sense, they raise questions about the consistency of treatment plans and goals for individual patients.
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Lewandowski W, Dao LD. Effect of heat treatment on photoluminescence of undoped liquid epitaxial layers GaXIn1-XP. Krist Techn 1977. [DOI: 10.1002/crat.19770121215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Bryśkiewicz T, Herman MA, Lewandowski W. A method of investigation of heterostructure for junction lasers based on photoluminescence measurements. Krist Techn 1975. [DOI: 10.1002/crat.19750100108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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69
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Herman MA, Lewandowski W, Zahorowski W. Luminescence of Liquid Phase Epitaxial GaxIn1−xP Layers Grown on Differently Doped GaAs Substrates. Krist Techn 1974. [DOI: 10.1002/crat.19740091016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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70
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Lewandowski W. [Pathogenesis, localization and the type of pain in temporomandibular arthropathy]. Czas Stomatol 1965; 18:659-63. [PMID: 5219737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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