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Artículos de revistas sobre el tema "305.8/009954/1"

Autor: Grafiati
Publicado: 27 de julio de 2024
Última modificación: 31 de julio de 2025

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1

Jacob, L. S. D., K. L. K. Lee, T. W. Schmidt, K. Nauta, and S. H. Kable. "The dynamics of CO production from the photolysis of acetone across the whole S1 ← S0 absorption spectrum: Roaming and triple fragmentation pathways." Journal of Chemical Physics 156, no. 9 (2022): 094303. http://dx.doi.org/10.1063/5.0080904.

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The unimolecular photodissociation dynamics of acetone spanning the entire S1 ← S0 absorption spectrum have been reinvestigated, with a focus on mechanisms that produce CO. At excitation wavelengths of λ > 305.8 nm, all photoproducts are formed on the S0 state after internal conversion. A roaming mechanism forming C2H6 + CO is active in the window λ = 311.2–305.8 nm. From λ = 305.8 to 262 nm, little or no CO is produced with the photochemistry dominated by the Norrish-type I C–C bond cleavage on the lowest excited triplet state, T1. At higher energy ( λ < 262 nm), an increasing fraction
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2

Göçmen, B., Z. Kaya, K. D. Jermstad, and D. B. Neale. "Development of random amplified polymorphic DNA markers for genetic mapping in Pacific yew (Taxusbrevifolia)." Canadian Journal of Forest Research 26, no. 3 (1996): 497–503. http://dx.doi.org/10.1139/x26-056.

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A genetic linkage map was constructed for Pacific yew (Taxusbrevifolia Nutt.) based on random amplified polymorphic DNA (RAPD) markers. A series of optimization experiments were conducted to develop a highly repeatable protocol for Pacific yew. In these experiments, a high MgCl2 concentration (5.5 mM) together with a low primer concentration (0.2 μm) in the polymerase chain reaction (PCR) mixture yielded the best amplification products. PCR amplification products were further improved by treating the template DNAs with RNase. Experiments showed that bovine serum albumine had the same effect as
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3

Jokić, Stela, Igor Jerković, Valentina Pavić, et al. "Terpenes and Cannabinoids in Supercritical CO2 Extracts of Industrial Hemp Inflorescences: Optimization of Extraction, Antiradical and Antibacterial Activity." Pharmaceuticals 15, no. 9 (2022): 1117. http://dx.doi.org/10.3390/ph15091117.

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Natural products are increasingly in demand in dermatology and cosmetology. In the present study, highly valuable supercritical CO2 (sCO2) extracts rich in bioactive compounds with antiradical and antibacterial activity were obtained from the inflorescences of industrial hemp. Volatile compounds were analyzed by gas chromatography in tandem with mass spectrometry (GC-MS), while cannabinoids were determined by high performance liquid chromatography (HPLC-DAD). Extraction yields varied from 0.75 to 8.83%, depending on the pressure and temperature applied. The extract obtained at 320 bar and 40 °
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4

Bruns, H. Arnold, and Hamed K. Abbas. "Aflatoxin Contamination in Corn Differs Among Inoculation Techniques." Plant Health Progress 11, no. 1 (2010): 18. http://dx.doi.org/10.1094/php-2010-0601-01-rs.

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Aflatoxin research in corn (Zea mays L.) usually requires application of inoculum of Aspergillus flavus to soil or plant ears. The pin-bar vs. side-needle or spray vs. solid material inoculations using A. flavus isolate F3W4 (NRRL 30798) were compared in 2004, 2006, and 2007 using three hybrids in two irrigated experiments each year at Stoneville, MS. Both were planted on a silty clay soil in randomized complete block designs with four replications of treatments. Mature ears inoculated by the pin-bar, side-needle, or spray methods were analyzed for aflatoxin. Ears from controls and solid mater
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5

Lestiani, Diah Dwiana, Muhayatun Muhayatun, and Natalia Adventini. "APPLICATION OF NEUTRON ACTIVATION ANALYSIS IN CHARACTERIZATION OF ENVIRONMENTAL SRM SAMPLES." Indonesian Journal of Chemistry 9, no. 2 (2010): 231–35. http://dx.doi.org/10.22146/ijc.21535.

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Neutron activation analysis (NAA) is a nuclear technique that is excellent, multi-elemental, sensitive and has limit detection up to nanogram level. The application of NAA in analysis of Standard Reference Material (SRM) National Institute of Standard Technology (NIST) 1633b Coal Fly Ash and SRM NIST 1646a Estuarine Sediment was carried out for NAA laboratory inter-comparison program. The samples were distributed by Technology Centre for Nuclear Industry Material, National Nuclear Energy Agency as a coordinator of the inter-comparison program. The samples were irradiated in rabbit facility of
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6

Montazar, Aliasghar, Daniel Geisseler, and Michael Cahn. "Spatial Variability of Nitrogen Uptake and Net Removal and Actual Evapotranspiration in the California Desert Carrot Production System." Agriculture 11, no. 8 (2021): 752. http://dx.doi.org/10.3390/agriculture11080752.

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Nitrogen (N) and irrigation water must be effectively used in mineral soils to produce carrots with high yield and minimal environmental impact. This study attempts to identify optimal N and irrigation management practices for low desert carrot production in California by investigating consumptive water use and N uptake and removal rates in fresh market and processing carrots. Field experiments were conducted at the University of California Desert Research and Extension Center and nine farmer fields during two growing seasons. The actual evapotranspiration (ETa) was measured using the residual
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7

Ficko, Andrej. "Bayesian Evaluation of Smartphone Applications for Forest Inventories in Small Forest Holdings." Forests 11, no. 11 (2020): 1148. http://dx.doi.org/10.3390/f11111148.

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There are increasingly advanced mobile applications for forest inventories on the market. Small enterprises and nonprofessionals may find it difficult to opt for a more sophisticated application without comparing it to an established standard. In a small private forest holding (19 ha, 4 stands, 61 standing points), we compared TRESTIMA, a computer vision-based mobile application for stand inventories, to MOTI, a smartphone-based relascope, in measuring the number of stems (N) and stand basal area (G). Using a Bayesian approach, we (1) weighted evidence for the hypothesis of no difference in N
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8

Lamback, Elisa Baranski, Carlos Henrique de Azeredo Lima, Renan Lyra Miranda, et al. "USP8 Somatic Mutations in Cushing’s Disease and Silent Corticotropinomas." Journal of the Endocrine Society 5, Supplement_1 (2021): A651. http://dx.doi.org/10.1210/jendso/bvab048.1328.

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Abstract Background: Somatic mutations in the ubiquitin-specific peptidase 8 (USP8) gene have been described in Cushing’s disease (CD). These mutations increase proopiomelanocortin transcription resulting in ACTH production and seem to correlate with somatostatin receptor type 5 (SST5) expression. Aims: Screen USP8 in patients with corticotropinomas and correlate USP8 mutational status with SST5 expression in CD. Methods: Tumor DNA was extracted and then exon 14 amplified by PCR. SST5 was assessed by immunohistochemistry (clone UMB4) and quantified multiplying the percentage of positive cells
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9

Maeda, Yuto, Yuji Miyamoto, Mayuko Ohuchi, Yukiharu Hiyoshi, Naoya Yoshida, and Hideo Baba. "Abstract 2401: Changes in skeletal muscle mass after gastrointestinal cancer surgery by body composition." Cancer Research 84, no. 6_Supplement (2024): 2401. http://dx.doi.org/10.1158/1538-7445.am2024-2401.

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Abstract Background: Previous studies have extensively explored the correlation between preoperative skeletal muscle mass and long-term survival in gastrointestinal cancers. However, investigations into postoperative skeletal muscle mass alterations are limited. In gastrointestinal cancers, factors such as the tumor and surgical interventions can significantly impact dietary intake, nutritional status, and skeletal muscle mass, affecting postoperative body composition. This study aimed to examine these postoperative changes in skeletal muscle mass across different gastrointestinal cancers, inc
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10

Толочка, Василий Васильевич, Григорий Владимирович Пакулев, Баир Дылгырович Гармаев, Дылгыр Цыдыпович Гармаев, and Владимир Иванович Косилов. "HISTOSTRUCTURE OF THE SKIN OF BEEF BULLS IN PRIMORSKY KRAI." Вестник Бурятской государственной сельскохозяйственной академии имени В. Р. Филиппова, no. 4(69) (December 28, 2022): 77–84. http://dx.doi.org/10.34655/bgsha.2022.69.4.010.

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В статье приводятся результаты влияния генотипа бычков специализированных мясных пород и сезона года на микроструктуру их кожи в Приморском крае. Целью исследования являлось определение влияния генотипа молодняка на общую толщину кожи и отдельных ее слоев, диаметр коллагеновых волокон, развитие ее железистого аппарата. Установлено, что в летний период по сравнению с зимним сезоном года у бычков подопытных групп толщина эпидермиса повысилась на 9,3-9,9 мкм (25,52-27,42%), пилярного слоя - на 305,8-379,5 мкм (30,69-42,03%), ретикулярного - на 281,8-327,4 мкм (12,71-14,57%), общая толщина кожи -
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11

Zhou, Lili, Shiguang Ye, Xiuyong Dang, Shaoguang Li, and Ping Li. "Characterization of Hemophagocytic Lymphohistio(HLH）in Relapsed Diffuse Large B-Cell Lymphoma Patients after CAR-T Therapy." Blood 142, Supplement 1 (2023): 6276. http://dx.doi.org/10.1182/blood-2023-186563.

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Background: Patients with chemotherapy-refractory diffuse large B-cell lymphoma (DLBCL) have poor prognoses. The objective response rate of patients with standard salvage regimens is 26%, while CART therapy have complete remission (CR) rates of 40%- 54% against DLBCL. Half of DLBCL patients relapsed or progressed after chimeric CAR-T cell therapy, but only a few of them were accompanied by HLH. Its clinical characteristics are unclear. This study aimed to investigate the clinical characteristics of these patients. Methods: We retrospectively analyzed the clinical data of 8 patients with relaps
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12

Venkatesan, K., V. Jagadeeswari, K. R. Vijayalatha, et al. "Studies on Seasonal Influence on Yield and Quality of Dolichos Bean Genotypes." LEGUME RESEARCH - AN INTERNATIONAL JOURNAL, Of (June 12, 2024). http://dx.doi.org/10.18805/lr-5315.

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Background: Dolichos bean [Dolichos lablab (Roxb.) (L) Var. typicus] is one of the most important leguminous vegetable crops cultivated in tropical plains of India. The mature and immature pods are rich in protein, minerals and vitamins. Most of the pole types of dolichos beans are photosensitive in nature, suited for growing in specific season like kharif and not productive when grown in summer season. Different cultivars of Dolichos bean require different seasons for getting maximum yield. With this background, studies on seasonal influence on growth and yield of dolichos bean genotypes were
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13

Hiscocks, Kay. "The impact of an increasing elephant population on the woody vegetation in southern Sabi Sand Wildtuin, South Africa." Koedoe 42, no. 2 (1999). http://dx.doi.org/10.4102/koedoe.v42i2.231.

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In 1961, a fence was erected between privately owned Sabi Sand Wildtuin (SSW) and the Kruger National Park (KNP), which largely prevented elephants entering the SSW. In 1993, the fence was removed. This lead to a rapid influx of elephants into the SSW during the winter months, most of which move back into the KNP during the wet summer season. In 1993, the SSW elephant population was 1/1045 ha but increased to 1/305.8 ha in 1996. It more than doubled to 1/146 ha in 1998. This study was undertaken on the property Kingston, in southern SSW, to assess the impact of elephants on woody vegetation an
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14

Chen, Shaomin, Shijia Li, Xinheng Feng, and Guisong Wang. "Cardioprotection of Repeated Remote Ischemic Conditioning in Patients With ST-Segment Elevation Myocardial Infarction." Frontiers in Cardiovascular Medicine 9 (May 26, 2022). http://dx.doi.org/10.3389/fcvm.2022.899302.

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BackgroundRepeated remote ischemic conditioning (RIC) after myocardial infarction (MI) has been shown to improve left ventricular (LV) remodeling in the experimental studies, but its cardioprotective effect in patients with ST-segment elevation myocardial infarction (STEMI) is still unknown.ObjectiveTo investigate whether repeated RIC started early after primary percutaneous coronary intervention (PCI) can improve LV function in patients with STEMI.MethodsPatients with STEMI treated by primary PCI were included and randomized to the repeated RIC group (n = 30) or the control group (n = 30). RI
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15

Dragunov, Dmitrii O., Anna V. Sokolova, Vadim M. Mitrokhin, and Grigory P. Arutyunov. "The impact of high-salt diet and diuretics on the development of the aestival phenomenon in patients with chronic heart failure." Frontiers in Nutrition 12 (July 22, 2025). https://doi.org/10.3389/fnut.2025.1538962.

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BackgroundChronic heart failure (CHF) often requires the use of high-dose loop diuretics to achieve decongestion. However, such therapy may lead to adverse effects, including deterioration of renal function and electrolyte imbalance. Recent evidence suggests that diuretic-induced dehydration may trigger metabolic responses resembling aestivation—a survival mechanism involving a shift from inorganic to organic osmolytes, particularly increased urea synthesis, to conserve water.MethodsThis prospective, single-center cohort study included 102 patients (median age 75 years, 57.8% female) hospitali
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16

Citalán‐Madrid, Alí Francisco, Alexander García‐Ponce, Hilda Vargas‐Robles, et al. "Cortactin is Required to Maintain Intestinal Epithelial Barrier Homeostasis." FASEB Journal 30, S1 (2016). http://dx.doi.org/10.1096/fasebj.30.1_supplement.305.8.

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A stable intestinal epithelium is the basis for healthy intestines. Epithelial dysfunction causes increased intestinal permeability and bacterial translocation that may eventually cause an aberrant immune response as seen in chronic inflammatory diseases of the intestines such as ulcerative colitis (UC) and Crohn disease (CD). The actin cytoskeleton regulates epithelial barrier integrity through tight junction and adherens junction molecules, but the role of actin regulators such as cortactin (CTTN) is not well understood. Analyzing CTTN‐KO mice, we found that these animals have increased basa
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