摘要 :
The total dominator total coloring of a graph is a total coloring of the graph such that
each object (vertex or edge) of the graph is adjacent or incident to every object of some color class.
The minimum number of the color clas...
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The total dominator total coloring of a graph is a total coloring of the graph such that
each object (vertex or edge) of the graph is adjacent or incident to every object of some color class.
The minimum number of the color classes of a total dominator total coloring of a graph is called the
total dominator total chromatic number of the graph. In (A.P. Kazemi, F. Kazemnejad and S. Moradi,
Contrib. Discrete Math. (2022).), the authors initiated to study the total dominator total coloring of a
graph and found some useful results, and presented some problems. Finding the total dominator total
chromatic numbers of cycles and paths were two of them which we consider them here.
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Microalgae are considered as a potential feedstock for producing sustainable biofuel. The high growth rate and ability to rapidly improve the strains for high lipid and carbohydrate content without competing for arable land, makes...
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Microalgae are considered as a potential feedstock for producing sustainable biofuel. The high growth rate and ability to rapidly improve the strains for high lipid and carbohydrate content without competing for arable land, makes microalgae a viableoption for sustainable fuel production. Five microalgae designated as MA-1, MA-2, MA-3, MA-4 and MA-5 were isolated from the waterlogged areas of villages Theri, Ghagga and Gurusar of district Muktsar, Punjab. On the basis of optical and scanning electron microscopy, these microalgal isolates were found to be round in shape, green coloured and unicellular in structure and were tentatively identified as Chlorella sp. Chlorella sp. MA-1 was found to be fast growing with maximum absorbance (A_(600nm),), viable cell count and chlorophyll content of 3.26, 369.4x105 cfu/mL and 24.31 mg/g dry wt., respectively at 5 days after culturing (DAC) However, significantly high total soluble protein content of 11.42% was found in this isolate at 5 days after culturing. Chlorella sp. MA-3 showed significantly high total carbohydrate content of 5.10 percent at 5 days after culturing (DAC), whereas the total lipid content was found to be significantly high in Chlorella sp. MA- 2 (4.16%) at 7 DAC. Alteration in the environmental and culturing conditions can further improve the chemical constituents of these microalgal isolates to improve biofuel production.
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The total chromatic number χT(G) of a graph G is the minimum number of colours needed to colour the edges and the vertices of G so that incident or adjacent elements have distinct colours. We show that if G is a regular graph of ...
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The total chromatic number χT(G) of a graph G is the minimum number of colours needed to colour the edges and the vertices of G so that incident or adjacent elements have distinct colours. We show that if G is a regular graph of even order and δ(G)≥2/3|V(G)|+23/6, then XT(G)≤Δ(G)+2.
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Background: As the popularity of total ankle arthroplasty (TAA) increases and indications expand, surgeons require a better understanding of which patient factors are associated with implant failure. In this study, we aimed to use...
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Background: As the popularity of total ankle arthroplasty (TAA) increases and indications expand, surgeons require a better understanding of which patient factors are associated with implant failure. In this study, we aimed to use a large total ankle database to identify independent risk factors for implant failure at mid- to long-term follow-up. Methods: A prospectively collected database was used to identify all patients who underwent primary TAA with a minimum 5 years’ follow-up. The primary outcome was revision, defined as removal of one or both metal components; failures due to infection were excluded. Patient and clinical factors analyzed included age, sex, body mass index (BMI), smoking status, presence of diabetes, indication for TAA, implant, tourniquet time, and presence of ipsilateral hindfoot fusion. Preoperative coronal deformity and sagittal talar translation were assessed, as were postoperative coronal and sagittal tibial component alignment. Univariable and multivariable analyses were performed to identify predictors of implant failure. After excluding 5 ankles that failed because of deep infection, 533 ankles with a mean 7 (range, 5-11) years of follow-up met the inclusion criteria. Four implants were used: INBONE I, INBONE II, STAR, and Salto-Talaris. Results: Thirty-four ankles (6.4%) were revised or removed a mean 4 (range, 1-9) years postoperatively. The only independent predictors of failure were the INBONE I prosthesis and ipsilateral hindfoot fusion ( P = .006 and P = .023, respectively). Conclusions: This is among the largest studies to analyze the relationship between TAA failure rates and multiple different patient, operative, and radiographic factors. Of note, age, BMI, and amount of deformity were not associated with higher failure rates. Only patients with ipsilateral hindfoot fusion or who received the INBONE I prosthesis were at significantly higher risk of implant failure. Level of Evidence: Level III, retrospective cohort study.
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Momordica charantia L. (cucurbitaceae), is a plant whose fruits are widely consumed in Chad. Seeds, green and ripe pulps of the fruits of this plant were subject of this study. The total polyphenols, antioxidants, flavonoids and a...
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Momordica charantia L. (cucurbitaceae), is a plant whose fruits are widely consumed in Chad. Seeds, green and ripe pulps of the fruits of this plant were subject of this study. The total polyphenols, antioxidants, flavonoids and anthocyanins were evaluated by the Folin - Ciocalteu, DPPH, iron trichloride and pH-differential methods respectively. The total polyphenol obtained were 9.368 mg GAE/g for the seeds extract, 9.068 mg GAE/g for the green pulp extract and 8.505 mg GAE/g for the mature pulp extract. The total antioxidant were 2.351, 2.074 and 1.365 mg QE/g for seeds, green pulp and ripe pulp respectively. The total flavonoid was 0.818 mg QE/g for seeds, 0.812 mg QE/g for green pulp and 0.808 mg EQ/g for ripe pulp. The total anthocyanin for seed, green and ripe pulp extracts were 0.360, 0.318 and 0.238 mg/g, respectively. The results of the polyphenol assays of the samples after traditional culinary transformed, show that the thermal transformation has a negative impact which is characterized by a decrease in the polyphenol contents. Percentages of total polyphenols after culinary transformation were 11.28; 8.84 and 8.26% respectively for the extracts of green pulp, seeds and ripe pulp.
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We deal with the totally irregular total labeling which is required to be at the same time vertex irregular total and also edge irregular total. The minimum k for which a graph G has a totally irregular total k-labeling is called ...
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We deal with the totally irregular total labeling which is required to be at the same time vertex irregular total and also edge irregular total. The minimum k for which a graph G has a totally irregular total k-labeling is called the total irregularity strength of G. In this paper, we estimate the upper bound of the total irregularity strength of graphs and determine the exact value of the total irregularity strength for three families of graphs.
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Herbicides reduce the unsafe effects of weeds, but they are likely to have negative impact on essential and secondary metabolism in crops. However, the combined effect of different herbicides on chemical constituents of different ...
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Herbicides reduce the unsafe effects of weeds, but they are likely to have negative impact on essential and secondary metabolism in crops. However, the combined effect of different herbicides on chemical constituents of different varieties of wheat is still not fully obvious. The current investigation was carried out to determine the effects of three post-emergence herbicides (pinoxaden, tribenuron-methyl, and pyroxsulam) on total protein, lipid, and carbohydrate concentrations of three bread wheat cultivars (Misr 1, Giza 171, and Gemmiza 11). These herbicides were added individually and in combinations at recommended and/or half recommended doses. Our findings revealed that the individual application of herbicides decreased total protein and total lipid concentrations in fresh shoots of the three studied wheat cultivars, but increased total carbohydrate concentration. Combined addition of herbicides at recommended and half recommended doses generally decreased the concentrations of total proteins, total lipids, and total carbohydrates. However, the combined addition of tribenuron-methyl and pinoxaden at recommended dose enhanced total protein and total lipid concentrations under Misr1 and Gemmiza 11 cultivars compared to control treatment. Furthermore, the combined addition of tribenuron-methyl and pyroxsulam at half recommended dose enhanced total protein concentration in Giza 171 up to 15.05% and Gemmiza 11 up to 15.09% cultivars, and total lipid concentration in Misr 1 (7.53%) and Giza 171 (9.81%) cultivars against control treatment, where it was the lowest. Total carbohydrate concentration was enhanced by the sole application of pinoxaden by 53.55%, 52.40%, and 51.79% for Misr 1, Giza 171, and Gemmiza 11 cultivars, respectively. Moreover, individual or combined additions of the studied pesticides at recommended and half recommended doses negatively affected wheat grains under all cultivars via decreasing their concentration of nutrients (nitrogen, phosphorus, and potassium) as well as total protein and total carbohydrates. The highest reduction of nitrogen, phosphorus, and potassium concentrations compared to control was observed when tribenuron-methyl+pyroxsulam was applied at the half recommended dose under the three studied cultivars. However, the combined application of tribenuron-methyl+pyroxsulam at the half recommended dose caused the great depression in total proteins and total carbohydrates of wheat grains. Under the stress effect of herbicides, individual application of pinoxaden gave the best results for nitrogen and potassium content as well as total protein and total carbohydrate concentrations in the three studied wheat grain cultivars.
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In this study, 3 taxa from the Chlorophyta, Phaeophyta and Rhodophyta were collected from different depths of the Rameswaram-Mandapam coast, India. A total of 3 specimens from these divisions were used to determine percentage of t...
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In this study, 3 taxa from the Chlorophyta, Phaeophyta and Rhodophyta were collected from different depths of the Rameswaram-Mandapam coast, India. A total of 3 specimens from these divisions were used to determine percentage of total protein (TP), total soluble carbohydrate (TSCH) and total lipid (TL) and different pigments, i.e. chlorophylls and phycobilins, etc. Percentage of TP, TSCH and TL and pigment contents varied significantly with, respect to the algal taxa, stations and depth distribution. In addition, individual differences were important in all of the measured parameters. The maximum TP were determined in Caulerpa sp. (20.47%). In contrast to TP value, TSCH values were very high; maximum TSCH were determined in Caulerpa sp. (57.81%), but TL is maximum in Sargassum tenerrimum (7.34%) but very low as compared to TP and TSCH. In case of pigments the total chlorophyll is high in Caulerpa sp. and lowest in Sargassum tenerrimum and phycobilins content (phycocyanin and phycoerythrin) is high in Gelidiella acerosa. In conclusion, the variations in TP, TSCH and pigment in 3 taxa of macroalgae were analysed according to station, and environment.
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The purpose of this paper is to: (1) define the concept of a dual mobility acetabular component; (2) present the clinical issue that a dual mobility cup seeks to address; and (3) review the clinical and laboratory data available o...
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The purpose of this paper is to: (1) define the concept of a dual mobility acetabular component; (2) present the clinical issue that a dual mobility cup seeks to address; and (3) review the clinical and laboratory data available on dual mobility acetabular components.A dual mobility acetabular component consists of a large, fixed, porous-coated acetabular component and a bipolar femoral component (Fig. 1A and B) these components are, therefore, often called "tripolar" components. This configuration provides a stable, well-fixed implant platform against bone and 2 articular interfaces, a large polyethylene surface directly apposed to a highly polished metal implant, and a standard-sized (28, 32 mm) femoral head captured within polyethylene. This concept was conceived, developed, and described by the French orthopedic surgeon, Gilles Bous-quet, in 1976.
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We describe a simple technique for guide pin placement for total ankle replacement in patients who underwent previous ipsilateral total knee arthroplasty. Levels of Evidence: Level V
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