Thematische Bibliographien / 808.2/3

Auswahl der wissenschaftlichen Literatur zum Thema „808.2/3“

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Veröffentlicht am 25. Juli 2024
Zuletzt aktualisiert am 27. Juli 2024

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Zeitschriftenartikel zum Thema "808.2/3"

1

Lepore, G. O., T. Boffa Ballaran, F. Nestola, L. Bindi, D. Pasqual und P. Bonazzi. „Compressibility of β-As4S4: an in situ high-pressure single-crystal X-ray study“. Mineralogical Magazine 76, Nr. 4 (August 2012): 963–73. http://dx.doi.org/10.1180/minmag.2012.076.4.12.

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AbstractAmbient temperature X-ray diffraction data were collected at different pressures from two crystals of β-As4S4, which were made by heating realgar under vacuum at 295ºC for 24 h. These data were used to calculate the unit-cell parameters at pressures up to 6.86 GPa. Above 2.86 GPa, it was only possible to make an approximate measurement of the unit-cell parameters. As expected for a crystal structure that contains molecular units held together by weak van der Waals interactions, β-As4S4 has an exceptionally high compressibility. The compressibility data were fitted to a third-order Birch–Murnaghan equation of state with a resulting volume V0 = 808.2(2) Å3, bulk modulus K0 = 10.9(2) GPa and K' = 8.9(3). These values are extremely close to those reported for the low-temperature polymorph of As4S4, realgar, which contains the same As4S4 cage-molecule. Structural analysis showed that the unit-cell contraction is due mainly to the reduction in intermolecular distances, which causes a substantial reduction in the unit-cell volume (∼21% at 6.86 GPa). The cage-like As4S4 molecules are only slightly affected. No phase transitions occur in the pressure range investigated.Micro-Raman spectra, collected across the entire pressure range, show that the peaks associated with As–As stretching have the greatest pressure dependence; the S–As–S bending frequency and the As–S stretching have a much weaker dependence or no variation at all as the pressure increases; this is in excellent agreement with the structural data.
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2

Tinant, Bernard, Jean-Paul Declercq, Maurice Van Meerssche und Otto Exner. „Structure of 5-nitro-2-methylbenzoic acid: ortho Effect of the methyl group“. Collection of Czechoslovak Chemical Communications 53, Nr. 2 (1988): 301–7. http://dx.doi.org/10.1135/cccc19880301.

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The X-ray structure of the title compound was determined: Mr = 181.15, triclinic, P1, a = 7.628(2) Å, b = 10.475(3) Å, c = 10.522(2) Å, α = 90.61(2)°, β = 98.19(2)°, γ = 76.41(2)°, V = 808.6(4) Å3, Z = 4, Dx = 1.49 g cm-3, CuKα, λ = 1.5418 Å, μ = 10.57 cm-1, F(000) = 376, T = 291 K, R = 0.049 for 1 713 observed reflections. The deformations induced by the steric effect of the ortho-methyl group are discussed in some detail. They are partly different from those commonly considered, in particular the carboxyl group is coplanar with the benzene ring.
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3

Boy, Insan, Gerhard Cordier, Brigitte Eisenmann und Rüdiger Kniep. „Oligomere Tetraeder-Anionen in Borophosphaten: Darstellung und Kristall­strukturen von NaFe[BP2O7(OH)3] und K2Fe2[B2P4O16(OH)2 ]/Oligomeric Tetrahedral Anions in Borophosphates: Synthesis and Crystal Structures of NaFe[BP2O7(OH)3] and K2Fe2[B2P4O16(OH)2]“. Zeitschrift für Naturforschung B 53, Nr. 2 (01.02.1998): 165–70. http://dx.doi.org/10.1515/znb-1998-0207.

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Abstract Crystals of the title compounds were grown under hydrothermal conditions. The crystal structures were determined by single crystal data.NaFe[BP2O7(OH)3] (monoclinic, C 2/c, a = 1042.0(2), b = 821.5(1), c = 921.7(1) pm, β = 116.60(1)°, Z=4): The crystal structure contains isolated anions [BP2O7(OH)3]4-, which correspond to trinuclear units PO1/2O3-BO2/2(OH)2 -PO1/2O2(OH) of corner sharing tetrahedra. Fe3+ is coordinated octahedrally by oxygen, Na+ is 8 -fold coordinated by oxygen forming cubes.K2Fe2[B2P4O16(OH)2] (triclinic, P1̄, a = 516.7(1), b = 808.9(1), c = 834.0(1) pm, α = 87.06(f), β = 80.21(1), γ = 86.59(1)°, Z = 1): The crystal structure contains isolated anions [B2P4O16(OH)2]8-. Four-membered rings of tetrahedra with two additional terminal phosphate groups are formed by condensation of two trinuclear units P O1/2O3 -BO3/2(OH) -PO2/2O2. Fe3+ is in an octahedral and K+ in an irregularly 10-fold coordination by oxygen.
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4

Lux, Frederick. „Discussion of “ Boardman Labyrinth‐Crest Spillway ” by John J. Cassidy, Christopher A. Gardner and Robert T. Peacock (March, 1985, Vol. 111, No. 3)“. Journal of Hydraulic Engineering 113, Nr. 6 (Juni 1987): 808–11. http://dx.doi.org/10.1061/(asce)0733-9429(1987)113:6(808.2).

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5

Oz, Isilay, Evren Hizal, Osman Halit Cam und Levent Naci Ozluoglu. „Effects of Glycerol Test on Resonance Frequency in Patients with Ménière’s Disease“. Audiology and Neurotology 24, Nr. 6 (2019): 285–92. http://dx.doi.org/10.1159/000503845.

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Objective: To evaluate resonance frequency (RF) values via dehydration effects in the inner ear caused by the glycerol test, which is used as a diagnostic method for Ménière’s disease (MD). Methods: Twenty adult patients with unilateral MD were included in the study. Before, and then at 1, 2, and 3 h after administration of glycerol (1 g/kg), pure-tone hearing levels (125–8,000 kHz) and multifrequency tympanometry tests were performed. As a control, the RF values of the ears of 25 healthy subjects (i.e., 50 ears) were compared to the affected and unaffected ears in the 20 MD patients. Results: There was a significant difference between the RF values of affected and healthy ears before glycerol administration (p = 0.047). The RF values before and after glycerol administration into affected ears were compared. The average RF values decreased significantly from 748.0 ± 402.1 to 808.0 ± 410.1 Hz at 1 h after glycerol intake, and this value increased during the subsequent hours. There were no statistically significant differences between the pure-tone levels before and 1 h after glycerol administration, but a significant decrease was observed at 3 h. Conclusion: We suggest that MD has different inner-ear dynamics and normal RF values when compared to healthy ears. Furthermore, decreased inner ear pressure causes reduction of the mass effect and a stiffening of the annular ligament. We conclude that pre- and post-RF tests should be added to the test battery for diagnosis of MD.
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Rizal, Ahmad, Darmawan Yudhanegara und Pandena Kicky Basuki Putri. „Perencanaan Jadwal Perawatan Pencegahan Mesin Sliting Dengan Metode RCM (Realibility Centered Maintenance) Di PT. XYZ“. Industrika : Jurnal Ilmiah Teknik Industri 7, Nr. 3 (06.10.2023): 276–84. http://dx.doi.org/10.37090/indstrk.v7i3.1071.

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PT XYZ is a company engaged in manufacturing plastic packaging. In the production process, the company is used to continuously produce so that the machines must continue to operate for 3 shifts/day which will decrease engine performance and engine damage. If the lack of machine maintenance, this will result in frequent occurrence downtime which impede the course of the production process and decreased production capacity. Downtime on cutting machine (Slitting) period January 2022 – December 2022 of 9810 minutes. This research was conducted to plan treatment using the method Realibility Centered Maintenance (RCM) which aims to make recommendations for improvements to the design of repair maintenance on slitting machines. From RCM analysis on slitting machine damage to machine components according to the diagram Logic Tree Analysis and found that component time directed that is Brake Roll, LPC (Line Position Control), Slitter blades, and Touch press roll. Based on the calculation of the frequency of replacement of the unwinder components will decrease by up to 58% after the component operates for 1.75 months or 808.5 hours, the roll cylinder component will decrease by 50% after the component operates for 1.5 months or 693 hours, and the rewinder component will decrease to 66% after the component has been operating for 2 months or 924 hours. Keywords: Maintenance system, Reliability Centered Maintenance (RCM), Total Minimum Downtime (TMD)
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Scazziota, Alejandra, Jorge Rouvier, Claudio Gonzalez und Raul Altman. „Effect of Sodium Arachidonate on Thrombin Generation through Platelet Activation – Inhibitory Effect of Aspirin“. Thrombosis and Haemostasis 84, Nr. 12 (2000): 1109–12. http://dx.doi.org/10.1055/s-0037-1614178.

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Summary Background. Sodium arachidonate was used in this study to determine its capacity to generate thrombin through platelet activation. Whether aspirin prevent this effect was also investigated. Methods and Results. Seventeen healthy volunteers without and after 160 mg/day aspirin intake for 3-5 days were studied. Lag-time and TG at basal condition and after platelet stimulation by sodium arachidonate (AA) were measured in normal non-aspirinated as well as “in vivo” aspirinated platelet rich plasma. (PRP). The lag-time was statistically significant shorter in non-aspirinated PRP activated with AA compared with non-activated PRP. This effect was inhibited by aspirin. In non-aspirinated PRP, there was an increase of TG at 4 and 6 min. incubation when platelets were activated with AA but the difference disappeared after 8 min. incubation, (84 ± 71; 148 ± 58 and 142 ± 92 nmol/L respectively) compared with non-aspirinated, non-activated platelets (16 ± 23; 55 ± 56 and 111 ± 76 nmol/L at 4, 6 and 8 min, p < 0.0001, p < 0.0001 and p = 0.292, respectively). The AUCo→22 min were 520.6 ± 545.5 in nonaspirinated, non-stimulated PRP and 808.9 ± 617, in non-aspirinated PRP activated with sodium arachidonate (p = 0.014). Aspirin administered in vivo produced a decrease of TG in PRP activated with AA. Conclusion. Platelet activated by AA trigged TG. This effect was inhibited by aspirin and could be an additional beneficial effect of aspirin in the prevention of thrombosis.
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Mazzella, Antonio, Elena Maiolino, Patrick Maisonneuve, Mauro Loi und Marco Alifano. „Systemic Inflammation and Lung Cancer: Is It a Real Paradigm? Prognostic Value of Inflammatory Indexes in Patients with Resected Non-Small-Cell Lung Cancer“. Cancers 15, Nr. 6 (20.03.2023): 1854. http://dx.doi.org/10.3390/cancers15061854.

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Background (1): Our goal was to investigate if and how pre-operative inflammatory status can influence the long-term prognosis of patients undergoing lung surgery for cancer. Materials and Methods (2): This prospective observational study includes the agreement of all operable patients to the study, who were referred to our department between 1 January 2017 and 30 December 2018. The inflammatory pre-operative status of the patients was investigated by calculating albumin, CPR (c-protein reactive), complete blood count (neutrophils, lymphocytes, platelets, hemoglobin), and some other indexes referring to inflammatory status, namely the HALP amalgamated index, platelet-to-lymphocyte ratio (PLR), neutrophil-to-lymphocytes ratio (NLR), systemic immune-inflammation index (SII), and advanced lung cancer inflammation Index (ALI). The follow-up ended in November 2021. Patient overall survival was assessed using the Kaplan–Meier method. The log-rank test was used to compare survival rates. Variables significantly associated with survival at univariate analysis were entered int Cox multivariate analysis (stepwise mode) to assess their independent character. Hazard ratios and their 95% confidence intervals were calculated. Variables associated with p < 0.05 were considered significative. Results (3): We enrolled 257 patients in our study. The overall survival of the cohort was as follows: 1 year, 96.1%; 3 year, 81.3%; and 4 year, 74.2%. Univariate analysis showed risk factors for overall survival as follows: Thoracoscore ≥ 2 (p = 0.002); histology (p = 0.002); HALP < 32.2 (p = 0.0002); SII ≥ 808.9 (p = 0.0004); ALI < 34.86 (p = 0.0005); NLr ≥ 2.29 (p = 0.01); hemoglobin < 13 g/dl (p = 0.01); PLR ≥ 196.1 (p = 0.005); pN+ (p < 0.0001); pleural invasion (p = 0.0002); and presence of vascular or lymphatic tumor emboli (p = 0.0002). Multivariate Cox analysis (stepwise model) identified Thoracoscore ≥ 2 (p = 0.02); histology, HALP < 32.2 (p = 0.004), and pN (p < 0.0001) as independent predictors of death. Conclusion (4): Pre-operative inflammatory status strongly influences long-term prognosis in patients affected by NSCLC and undergoing surgery.
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Abdulkadhum, Mariam Hassan, Ali Ibadi Manea und Saad Shakir Mahmoud. „Effect of Mycorrhizal Addition and Organic Fertilization on the Growth and Yield of Potato in Autumn Season“. IOP Conference Series: Earth and Environmental Science 1262, Nr. 4 (01.12.2023): 042004. http://dx.doi.org/10.1088/1755-1315/1262/4/042004.

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Abstract A farmer’s fields in the Al-Azzawiya area / Al-Musayyib district 2021-2022, 40 km north of Hilla / Babylon province’s centre, were used for the experiment. Two elements were put in the split plot scheme of the Randomised Complete Block Design (RCBD). One replicate had eight experimental treatments, three replications, and the parameters were: - The first component was adding mycorrhiza to the comparative treatment (B0: no fertilisation, control, B1: 7.0 g. plant-1). The second factor: In addition to the control treatment, it added three kinds of organic fertiliser: C1: chicken waste (10 tons.ha-1), C2: humic fertiliser (3 tons.ha-1), and C3: vermicompost (4 tons.ha-1). The least significant difference (L.S.D.) comparing coefficient averages. The findings may be summarised as follows at 0.05. Mycorrhiza (7.0 gm. plant-1) increased plant height and chlorophyll, which showed substantial variations in the potato plant’s vegetative, quantitative, and qualitative traits. The number of marketable tubers was 6.84 tubers.plant-1, the output of one plant was 759.8 g. plant-1, the overall yield was 44.27 tons.ha-1, and the percentages of dry matter, starch, and N and K were in the tubers. The results of adding organic fertiliser showed that poultry waste significantly improved plant height, leaf area, chlorophyll, number of marketable tubers (7.75 tubers. plant-1), yield of one plant (808.3 g. plant-1), total yield (47.99 tonnes.ha-1), dry matter, starch, and N, K in tubers. The bi-interaction therapy (mycorrhiza + organic manure and chicken waste) improved vegetative, quantity, and quality features, plant height, leaf area, chlorophyll percentage of dry matter, and The number of marketable tubers was (9.11 tubers.plant-1), the yield of one plant was (880.5 gm.plant-1), the overall yield was (51.81 tons.ha-1), and the proportion of dry matter, starch, and (, KN) in tubers.
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Strasfeld, Lynne, Debargha Basuli, Douglas Norman, Eric Langewisch, Ali Olyaei und Joseph Lockridge. „Outcomes of Kidney Transplantation with a CMV Matching Allocation Schema“. Open Forum Infectious Diseases 4, suppl_1 (2017): S11—S12. http://dx.doi.org/10.1093/ofid/ofx162.028.

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Abstract Background Cytomegalovirus (CMV) infection continues to be a major cause of morbidity in kidney transplant recipients. The CMV donor-positive (D+)/recipient-negative (R−) serostatus pairing poses highest risk for CMV disease. Methods In September 2012, we adopted a CMV matching allocation policy at the centers served by our organ procurement organization, the Pacific Northwest Transplant Bank. CMV serostatus was used as a criterion in determining deceased donor kidney allocation, whereby R− kidney transplant recipients were preferentially paired with a D− organ, and R+ recipients with an R+ organ. We performed a retrospective analysis of CMV-related outcomes for 400 consecutive kidney recipients, 196 prior to (January 1, 2010– August 31, 2012) and 204 following (September 1, 2012–December 3, 2014) implementation of the CMV matching allocation schema at our center. We also looked at waitlist time for patients transplanted during the same period. Results The percentage of D+/R− transplants performed decreased from 17.3% to 2.5% (P &lt; 0.001) after implementation of the CMV matching allocation strategy (Figure 1). CMV viremia decreased from 13.3% to 5.9% (P = 0.0118), and CMV syndrome or disease decreased from 9.2% to 2.9% (P = 0.00859) (Table 1). The percentage of patients treated for CMV infection overall decreased from 10.7% to 5.4% (P = 0.0498). Median days on the waitlist prior to transplantation increased from 793 (PRE) to 944 (POST) due to growing wait list size, but neither R− nor R+ patients appeared to be disadvantaged: wait times increased from 808.5 to 958 for the R− subset and from 777.5 to 933 for the R+ subset (Figure 2). Conclusion CMV disease occurred infrequently in our cohort, in the context of 6 months of valganciclovir prophylaxis post-transplant and post-prophylaxis pre-emptive monitoring strategy for our D+/R− recipients. Following implementation of an allocation schema that took CMV serostatus into account, the rate of CMV infection and antiviral treatment decreased significantly. Disclosures L. Strasfeld, Merck: Independent Contractor, Salary
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Bücher zum Thema "808.2/3"

1

Good scripts, bad scripts: Learning the craft of screenwriting through the 25 best and worst films in history. New York: Three Rivers Press, 1998.

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The Psychology of Screenwriting. Continuum, 2013.

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Writing the character-centered screenplay. Berkeley: University of California Press, 1999.

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Story: Style, Structure, Substance, and the Principles of Screenwriting. HarperCollins Publishers, 2010.

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El Guión: Sustancia, estructura, estilo y principio de la escritura de guiones. Alba, 2017.

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История на миллион долларов: Мастер-класс для сценаристов, писателей и не только. Russia: Альпина нон-фикшн, 2015.

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