BACKGROUNDS AND AIMS Information on the micro-distribution of lignin within the middle lamella is only just beginning to emerge. This paper provides evidence of marked heterogeneity in the micro-distribution of lignin, pectin, peroxidase and hydrogen peroxide in the middle lamella of alfalfa (Medicago sativa). METHODS Specimens from alfalfa stems were collected and processed for transmission ...

the co-inoculation of mulberry with phosphate solubilizing micro-organisms, nitrogen fixing bacteria and arbuscular mycorrhiza has influenced its macronutrient uptake through leaf. the data revealed that maximum nitrogen (484.12 kg /ha) , phosphorus (59.83 kg /ha) and potassium (244.61 kg/ha) uptake through leaf has taken place due to co-inoculation treatments as compared to the un inoculated t...

the essential nutrients in the pharmacological plants play a significant role in the remedy of illnesses but, these elements at high levels; can also be dangerous and toxic. the aim of this study was to determine the concentration of macro (mg, ca, p, and k) and micro (cu, zn, fe and mn) essential elements in seven indigenous pharmacological plants growing in fars province, southern iran. they ...

E. S. Wallace PhD, J. A. White PhD*, A. Downie FFOMt, G. Dalzell MDt and D. Doran BA§ Department of Sport and Leisure Studies and NIBEC, University of Ulster, County Antrim, Northern Ireland, UK, *Department of Public Health Medicine and Epidemiology, University Hospital, Queen's Medical Centre, Nottingham, UK, tOccupational Health, Safety, and Environmental Services, Northern Telecom Europe Li...

For any integer n ≥ 1 a middle levels Gray code is a cyclic listing of all bitstrings of length 2n+1 that have either n or n+1 entries equal to 1 such that any two consecutive bitstrings in the list differ in exactly one bit. The question whether such a Gray code exists for every n ≥ 1 has been the subject of intensive research during the last 30 years, and has been answered affirmatively only ...

objective: the aim of the present study was to compare microtensile bond strengths (μtbs) of glass fiber posts to different parts of intra-radicular dentin using conventional method and one-shot technique under different light intensities. materials and methods: twenty-eight single-rooted teeth were prepared to receive fiber posts: group 1: conventional method at light intensity of 600 mw/cm2; ...

Introduction: Studies have reported hyperlipidemia and its complications, such as diabetes, along with aging. Omentin-1, on the other hand, is a protein that is secreted in visceral adipose tissue and can increase insulin sensitivity. This study aimed at evaluating the effect of aerobic exercise on resting levels of omentin-1, C-reactive protein, and some metabolic parameters in middle-aged men...

Define the middle layer graph as the graph whose vertex set consists of all bitstrings of length 2n + 1 that have exactly n or n + 1 entries equal to 1, with an edge between any two vertices for which the corresponding bitstrings differ in exactly one bit. The middle levels conjecture asserts that this graph has a Hamilton cycle for every n ≥ 1. This conjecture originated probably with Havel, B...

Let 0 < k ∈ Z and let n = 2k + 1. A rooted binary tree T is presented whose nodes are the classes mod n of the weight-k n-tuples over F2. Lexical 1-factorizations of the middle-levels graphs Mk allow to present an equivalent form of T via nodes that are the classes mod n of the weight-(k + 1) n-tuples over F2. This in turn allows to present a quotient graph Rk of Mk via reverse complementation ...