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13481
Chemoselective Preparation of 1,1-Diacetates from Aldehydes, Mediated by a Keggin Heteropolyacid Under Solvent Free Conditions at Room Temperature
Published 2007-01-01“…A simple, general and efficient method has been developed for the conversion of aldehydes to 1,1-diacetates using acetic anhydride, a catalytic amount of non commercial Keggin heteropolyacid (H6 PalMo11O40) (1% mol) in solvent free conditions at room temperature. …”
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13482
Management of Vegetation by Alternative Practices in Fields and Roadsides
Published 2014-01-01“…In this investigation, alternative herbicides (citric-acetic acids, clove oil, corn gluten meal, limonene, and pelargonic acid), flaming, and mulching were assessed in management of annual and perennial, herbaceous vegetation in field and roadside plots. …”
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13483
HPTLC Method for Simultaneous Determination of Lopinavir and Ritonavir in Capsule Dosage Form
Published 2008-01-01“…Separation was performed on aluminum-backed silica gel 60F254 HPTLC plates as stationary phase and using a mobile phase comprising of toluene, ethyl acetate, methanol and glacial acetic acid, in the volume ratio of 7.0:2.0:0.5:0.5 (v/v) respectively. …”
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13484
Impact of Auxins on Vegetative Propagation through Stem Cuttings of Couroupita guianensis Aubl.: A Conservation Approach
Published 2016-01-01“…Maximum 79% of stem cuttings responded to pretreatment of 300 mg L−1 indole-3-butyric acid (IBA) for 5 min, and 75% of stem cuttings induced shoots with 400 mg L−1 indole-3-acetic acid (IAA). …”
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13485
Impact of Dried Stems on the Chemical Profile of Passito Wines: A Case Study of Four Veneto Varieties
Published 2025-01-01“…Minor differences were observed in acetate esters, terpenes, and norisoprenoids, though these were not consistent across all wine types. …”
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13486
Microbial metabolic interaction in fermentation ecosystem and cooperation in flavor compounds formation of Chinese cereal vinegar
Published 2024-11-01“…The topology properties analysis found that Lactobacillus was the key role with robust metabolic control of vinegar fermentation ecosystem and acetic acid and lactic acid were the main metabolites with feedback regulation in microbial metabolism of SAV. …”
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13487
A Systematic Review of Medical Treatments for Benign Prostatic Hyperplasia in Dogs: Evaluating Strategies for Reproductive Function Preservation
Published 2025-01-01“…Evidence suggests that osaterone acetate and finasteride are acceptable treatments for BPH in breeding dogs, in spite of a still debatable effect on some sperm characteristics. …”
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13488
Characterization of Phenolic Constituents from Prunus cerasifera Ldb Leaves
Published 2020-01-01“…To elucidate the chemical compositions of Prunus cerasifera Ldb leaves, the methanol extracts were firstly fractionated by ethyl acetate and n-butanol, respectively. The phenolic acid-rich fractions (ethyl acetate extracts) were further isolated by various chromatographic columns (CC) including MCI macroporous resin, normal-phase silica gel, Sephadex gel LH-20, octadecyl silane (ODS), and preparative HPLC to yield the phenolic compounds. …”
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13489
Pollution Abatement of Heavy Metals in Different Conditions by Water Kefir Grains as a Protective Tool against Toxicity
Published 2019-01-01“…Among the tested experimental conditions, the best combination for pollution abatement is sucrose (5%), contact time 24 hours, starting pH = 4.5, acetate buffer, and Kefir grains/metal solution ratio 1 : 1. …”
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13490
Polyvinylpolypyrrolidone-Supported Boron Trifluoride; Highly Efficient Catalyst for the Synthesis of N-tert-Butyl Amides
Published 2012-01-01“…Highly efficient method for the preparation of N-tert-butyl amides by reaction of nitriles with tert-butyl acetate is described using polyvinylpolypyrrolidone-supported boron trifluoride (PVPP-BF3) at 70°C in good to excellent yields. …”
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13491
A Tsunami Ball Approach to Storm Surge and Inundation: Application to Hurricane Katrina, 2005
Published 2009-01-01“…I develop a completely new approach that uses a momentum equation to accelerate bits or balls of water over variable depth topography. …”
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13492
Information-Theoretic Analysis of Underwater Acoustic OFDM Systems in Highly Dispersive Channels
Published 2012-01-01“…Expressions for these rates take into account the “cross-channels” established by the ISI/ICI and are based on lower bounds on mutual information that assume independent and identically distributed input data symbols. …”
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13493
Chemical Feature-Based Molecular Modeling of Urotensin-II Receptor Antagonists: Generation of Predictive Pharmacophore Model for Early Drug Discovery
Published 2014-01-01“…The results demonstrate that the best model, Hypo 1, shows a correlation (r) of 0.902, a root mean square deviation (RMSD) of 0.886, and the cost difference of 39.69 bits. …”
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13494
Reversible data hiding scheme based on pixel-value differencing in dual images
Published 2020-07-01“…In the proposed scheme, the cover image is divided into non-overlapping blocks and the maximum difference value is calculated to hide secret bits. On the sender side, the length of embeddable secret data is calculated by using the maximum difference value and the log function, and the decimal secret data are embedded into the two stego-images after applying the ceil function and floor function. …”
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13495
Secure and Privacy Enhanced Gait Authentication on Smart Phone
Published 2014-01-01“…Extracted gait features are merely used to biometrically encrypt a cryptographic key which is acted as the authentication factor. …”
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13496
New and Safe Treatment of Food Impacted in the Esophagus: A Single Center Experience of 100 Consecutive Cases
Published 2013-01-01“…Aim. Large food bits can get stuck in the esophagus and must be removed by endoscopy. …”
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13497
Controlled Bidirectional Quantum Secure Direct Communication
Published 2014-01-01“…Our proposed protocol is aimed at protecting against external and participant attacks on such a system, and the cost of transmitting quantum bits using our protocol is less than that achieved in other studies. …”
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13498
Performance analysis of insertion loss incorporated hybrid precoding for massive MIMO
Published 2024-04-01“…Characterizing the effect of quantized analog precoding, it was shown that the subconnected structure was able to achieve better performance with fewer feedback bits than the fully connected structure.…”
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13499
An Efficient Approximate Multiplier with Encoded Partial Products and Inexact Counter for Joint Photographic Experts Group Compression
Published 2024-01-01“…In this study, a low-power and high-speed approximate 4 : 2 counter is proposed to add partial product (PP) bits. Also, a new partial product generation (PPG) is introduced by inserting errors in Karnaugh’s map to reduce the circuit complexity. …”
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13500
A Modified Wolf Pack Algorithm for Multiconstrained Sparse Linear Array Synthesis
Published 2020-01-01“…In the new method, wolves are coded by Bloch spherical coordinates of quantum bits, updated by quantum revolving gates, and selectively adaptively mutated when performing poorly. …”
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