Abstract:
:The properties of biophoton signals emitted by samples of lichen species P. tinctorum are investigated. The shape of a light induced signal is determined from 5 ms onwards using successively the bin resolution of 1, 10 and 100 ms; 1000 measurements in successive bins are made at each resolution. The measurement of the shape is repeated at various temperatures in the range (1 degree-40 degrees C) in steps of 1 degree C. It is found that a biophoton signal is very sensitive to temperature and different portions of the signal show different sensitivity. The temperature dependence of the decaying part is even qualitatively different from that of the non-decaying part. The signal responds to temperature changes of 0.1 degrees C in less than 1 ms. The effect of monochromatic stimulation on the strengths of the signal and its red, blue and green spectral components are determined in the wavelength range (400-700) nm in steps of 10 nm. The signal and its broad spectral components have similar excitation curves. The relative strength of spectral component appears independent of the stimulating wavelength. The shape of the decaying portion of the signal and its red, blue and green components is also determined. The character of decay in all four cases is non-exponential. The measurements with various interference filters spanning the entire visible region are made with the bin size of 20 s. These measurements are qualitative because of large fluctuations but suggest that the spectral components of a biophoton signal are distributed in the entire visible region. The probabilities of detecting different number of photons in the non-decaying portion are determined by making 30,000 measurements in each set with the bin size of 50, 100, 200, 300, 400, 500 and 700 ms. The probabilities determine the parameters of a squeezed state of light--the magnitude of its displacement parameter is different but the phase of its displacement parameter and its squeezing parameter are same for different sizes of a bin. These measurements further indicate that the average signal strength remains constant for 19 hr.
journal_name
Indian J Exp Bioljournal_title
Indian journal of experimental biologyauthors
Bajpai RPkeywords:
subject
Has Abstractpub_date
2003-05-01 00:00:00pages
403-10issue
5eissn
0019-5189issn
0975-1009journal_volume
41pub_type
杂志文章abstract::Effect of chloride and diamide on testicular and epididymal angiotensin converting enzyme (ACE) activity was investigated using Hip-His-Leu as substrate in sheep. The chloride ions functioned as ACE activators, however, there was no linear correlation between the two. The optimum chloride concentrations were 500 mM fo...
journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2004-02-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2010-10-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2004-02-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:1996-03-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2006-07-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:1999-12-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2013-12-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:1992-06-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2004-04-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2013-02-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2011-01-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:1993-11-01 00:00:00
abstract::Ruminal fungal isolates (Orpinomyces sp.; C-14, Piromyces sp.; C-15, Orpinomyces sp.; B-13 and Anaeromyces sp.; B-6), were evaluated under anoxic conditions for their effect on in vitro dry matter digestibility, neutral detergent fibre, acid detergent fibre and acid detergent lignin using rice and wheat straw as subst...
journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2004-06-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2003-06-01 00:00:00
abstract::Orange peel oil is used extensively as an approved flavour enhancer in fruit drinks, carbonated beverages and as a scenting agent in soaps and cosmetics. Limonene, which is a monocyclic monoterpene is present in orange peel oil from 90 to 95% (w/w). Monoterpenes have been shown to be very effective chemopreventive age...
journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2002-03-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:1990-08-01 00:00:00
abstract::Administration of single dose (175 mg/kg body wt) of amiodarone dissolved in water through gavage for 3 weeks damaged the lung and changed the content of lung lavage. Activities of bronchoalveolar lavage (BAL) angiotensin converting enzyme (ACE) and lactate dehydrogenase (LDH) increased significantly. Also, the protei...
journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:1992-07-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2004-06-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2003-12-01 00:00:00
abstract::In the present studies, the role of oxidative stress in radiosensitization by a combination of 2-DG and 6-aminonicotinamide (6-AN) was examined in a human glioma cell line (BMG-1: wild type p53). Presence of 2-DG or 6-AN for 4 hr after irradiation (gamma ray 2.5 Gy) significantly enhanced the radiation-induced cell de...
journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2003-12-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:1992-02-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2010-03-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章
doi:
更新日期:2003-02-01 00:00:00
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journal_title:Indian journal of experimental biology
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更新日期:2012-01-01 00:00:00
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journal_title:Indian journal of experimental biology
pub_type: 杂志文章,评审
doi:
更新日期:2001-06-01 00:00:00