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#33079679   2020/10/20 To Up

Seeds: Sampling-Enhanced Embeddings.

Finding a desirable sampling estimator has a profound impact on the development of static word embedding models, such as continue-bag-of-words (CBOW) and skip gram (SG), which have been generally accepted as popular low-resource algorithms to generate task-agnostic word representations. Due to the prevalence of large-scale pretrained models, less attention has been paid to these static models in the recent years. However, compared with the dynamic embedding models (e.g., BERT), these static models are straightforward to interpret, cost effective to train, and out-of-box to deploy, thus are still widely used in various downstream models until now. Therefore, it is still of considerable significance to study and improve them, especially the crucial components shared by these static models. In this article, we focus on negative sampling (NS), a key component shared by the sampling-based static models, by investigating and mitigating some critical problems of the sampling core. Concretely, we propose Seeds, a sampling enhanced embedding framework, to learn static word embeddings by a new algorithmic innovation for replacing the NS estimator, in which multifactor global priors are considered dynamically for different training pairs. Then, we implement this framework by four concrete models. For the first two implementations, namely CBOW-GP and SG-GP, both negative words and positive auxiliaries are sampled. And for the other two implementations, CBOW-GN and SG-GN, estimations are simplified by sampling only the negative instances. Extensive experimental results across a variety of standard intrinsic and extrinsic tasks demonstrate that embeddings learned by the proposed models outperform their NS-based counterparts, such as CBOW-NS and SG-NS, as well as other strong baselines.
Ning Gong, Nianmin Yao, Shun Guo

2793 related Products with: Seeds: Sampling-Enhanced Embeddings.

125 ml 1 mg100 μg5 mg 1000 ml 50 assays 500 ml 5 mg

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#33079666   2020/10/20 To Up

Retrieve-Then-Adapt: Example-based Automatic Generation for Proportion-related Infographics.

Infographic is a data visualization technique which combines graphic and textual descriptions in an aesthetic and effective manner. Creating infographics is a difficult and time-consuming process which often requires significant attempts and adjustments even for experienced designers, not to mention novice users with limited design expertise. Recently, a few approaches have been proposed to automate the creation process by applying predefined blueprints to user information. However, predefined blueprints are often hard to create, hence limited in volume and diversity. In contrast, good infogrpahics have been created by professionals and accumulated on the Internet rapidly. These online examples often represent a wide variety of design styles, and serve as exemplars or inspiration to people who like to create their own infographics. Based on these observations, we propose to generate infographics by automatically imitating examples. We present a two-stage approach, namely retrieve-then-adapt. In the retrieval stage, we index online examples by their visual elements. For a given user information, we transform it to a concrete query by sampling from a learned distribution about visual elements, and then find appropriate examples in our example library based on the similarity between example indexes and the query. For a retrieved example, we generate an initial drafts by replacing its content with user information. However, in many cases, user information cannot be perfectly fitted to retrieved examples. Therefore, we further introduce an adaption stage. Specifically, we propose a MCMC-like approach and leverage recursive neural networks to help adjust the initial draft and improve its visual appearance iteratively, until a satisfactory result is obtained. We implement our approach on widely-used proportion-related infographics, and demonstrate its effectiveness by sample results and expert reviews.
Chunyao Qian, Shizhao Sun, Weiwei Cui, Jian-Guang Lou, Haidong Zhang, Dongmei Zhang

2930 related Products with: Retrieve-Then-Adapt: Example-based Automatic Generation for Proportion-related Infographics.

1L1 mgOne 96-Well Microplate Ki 5 G 6 ml Ready-to-use 0.1 mg100μg1,000 tests2 Pieces/Box500 ml100 tests

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#33079017   2020/10/20 To Up

Reducing Chlorothalonil Use in Fungicide Spray Programs for Powdery Mildew, Anthracnose, and Gummy Stem Blight in Melons.

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Jake G Jones, Robert C Korir, Taylor L Walter, Kathryne L Everts

1498 related Products with: Reducing Chlorothalonil Use in Fungicide Spray Programs for Powdery Mildew, Anthracnose, and Gummy Stem Blight in Melons.

500 MGcase 100 G250 mgcase 1 G1 L. 1 G1 mg3 inhibitors 5 G

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#33078546   // To Up

Effects of oat hay and leguminous forage mixture feeding on enteric methane emission, energy utilization, and feed conversion efficiency in male crossbred Simmental beef cattle.

Dietary manipulation has the potential to mitigate methane (CH ) emission and to maintain or enhance livestock productivity. We conducted two experiments to investigate the effects of replacing oat hay by leguminous forages (alfalfa hay [AH], 0, 8, 16, and 24%, experiment 1; common vetch hay [CVH], 0, 10, 20, and 30%, experiment 2) on energy metabolism of crossbred Simmental cattle. In experiment 1, total volatile fatty acid (VFA) concentrations increased quadratically with increasing AH proportions (p = .006) with a forage-to-concentrate ratio of approximately 50:50, whereas the CH energy to gross energy intake ratio (CH -E:GEI) was significantly lower with 16% AH compared with 24% AH diet (p < .05). In experiment 2, there were no differences in the total VFA concentrations among the four diet groups with a forage-to-concentrate ratio of around 60:40 (p > .05); however, CH -E:GEI was significantly lower in the 30% CVH diet compared with the 10% CVH diet (p < .05). There was no significant difference in feed conversion efficiency among the four diet groups in each experiment. The results suggest that substituting 16 and 30% oat hay by AH and CVH provide optimal diets with forage-to-concentrate ratios of 50:50 and 60:40, respectively, which may reduce CH emission without compromising the feed conversion efficiency of crossbred Simmental cattle.
Wuchen Du, Fujiang Hou, Atsushi Tsunekawa, Nobuyuki Kobayashi, Fei Peng, Toshiyoshi Ichinohe

1056 related Products with: Effects of oat hay and leguminous forage mixture feeding on enteric methane emission, energy utilization, and feed conversion efficiency in male crossbred Simmental beef cattle.

1 mg1,000 tests100ul1 mg100ug96 tests100 mg1000 tests1000 TESTS/0.65ml100ug500 MG

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#33078508   // To Up

Effect of pomegranate by-product silage on feed intake, blood metabolites, inflammatory responses, and prostaglandin F metabolites in Holstein dairy cows.

Dairy cows often suffer metabolic disorders due to the challenges of the transition period. The aim of study was to determine the effects of feeding pomegranate by-product silage (PBS) on feed intake and some blood parameters, such as non-esterified fatty acids (NEFA) and beta hydroxy butyric acid (BHBA), interleukin-1 (IL-1), serum amyloid-A (SAA), prostaglandin F metabolites (PGFM), and progesterone (P4) in fresh Holstein cows. The experimental groups were as follows: CON (0 g PBS of DM) and PBS (120 g PBS of DM). Results showed that replacing corn silage with PBS had no effect on dry matter intake (DMI) throughout the study. The CON group had highest (p < .05) NEFA at 14 d postpartum and serum BHBA was decreased by feeding PBS, especially on days 21 (p < .05) and 28 (p < .05) and the entire study (p < .01). Cows fed PBS had lower (p < .05) serum Malondialdehyde (MDA) than CON cows at different times. Feeding PBS decreased (p < .01) serum IL-1 compared to CON group (216.7 versus. 515.5 Pg/ml) at 28 d postpartum, and also cows fed 120 g PBS had higher (p < .01) serum P4. It was concluded that feeding PBS had no adverse effect on feed intake, milk production, and some reproductive parameters. Moreover, PBS positively affected serum metabolites in fresh dairy cows.
Mohammad Choupani, Ahmad Riasi, Rasoul Kowsar, Simin Khorsandi

2074 related Products with: Effect of pomegranate by-product silage on feed intake, blood metabolites, inflammatory responses, and prostaglandin F metabolites in Holstein dairy cows.

1 Product tipe: Instrumen100ug0.1 mg96 wells96 wells96 wells100ug Lyophilized100ug1 Set1 kit20 ul (10 mM)1.00 flask

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#33075395   2020/10/16 To Up

Switching from high-fat feeding (HFD) to regular diet improves metabolic and behavioral impairments in middle-aged female mice.

Obesity represents a risk factor for metabolic syndrome and cardiovascular and psychiatric disorders. Excessive caloric intake, particularly in dietary fats, is an environmental factor that contributes to obesity development. Thus, the observation that switching from long-standing dietary obesity to standard diet (SD) can ameliorate the high-fat diet-induced metabolic, memory, and emotionality-related impairments are particularly important. Herein we investigated whether switching from the high-fat diet (HFD) to SD could improve the metabolic and behavioral impairments observed in middle-aged females C57Bl/6 mice. During twelve weeks, the animals received a high-fat diet (61 % fat) or SD diet. After 12-weeks, the HFD group's diet was switched to SD for an additional four weeks. It was observed a progressive deleterious effect of HFD in metabolic and behavioral parameters in mice. After four weeks of HFD-feeding, the animals showed glucose intolerance and increased locomotor activity. A subsequent increase in the body mass gain, hyperglycemia, and depressive-like behavior was observed after eight weeks, and memory impairments after twelve weeks. After replacing the HFD to SD, it was observed an improvement of metabolic (loss of body mass, normal plasma glucose levels, and glucose tolerance) and behavioral (absence of memory and emotional alterations) parameters. These results demonstrate the temporal development of metabolic and behavioral impairments following HFD in middle-age female mice and provide new evidence that these alterations can be improved by switching back the diet to SD.
Sara Pereira Braga, Eslen Delanogare, Adriano Emanuel Machado, Rui Daniel Prediger, Eduardo Luiz Gasnhar Moreira

1117 related Products with: Switching from high-fat feeding (HFD) to regular diet improves metabolic and behavioral impairments in middle-aged female mice.

500 gm.96 wells (1 kit)400Tests 1 G50

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#33074827   2020/10/19 To Up

Disentangled Representation Learning for Multiple Attributes Preserving Face Deidentification.

Face is one of the most attractive sensitive information in visual shared data. It is an urgent task to design an effective face deidentification method to achieve a balance between facial privacy protection and data utilities when sharing data. Most of the previous methods for face deidentification rely on attribute supervision to preserve a certain kind of identity-independent utility but lose the other identity-independent data utilities. In this article, we mainly propose a novel disentangled representation learning architecture for multiple attributes preserving face deidentification called replacing and restoring variational autoencoders (R²VAEs). The R²VAEs disentangle the identity-related factors and the identity-independent factors so that the identity-related information can be obfuscated, while they do not change the identity-independent attribute information. Moreover, to improve the details of the facial region and make the deidentified face blends into the image scene seamlessly, the image inpainting network is employed to fill in the original facial region by using the deidentified face as a priori. Experimental results demonstrate that the proposed method effectively deidentifies face while maximizing the preservation of the identity-independent information, which ensures the semantic integrity and visual quality of shared images.
Maoguo Gong, Jialu Liu, Hao Li, Yu Xie, Zedong Tang

1267 related Products with: Disentangled Representation Learning for Multiple Attributes Preserving Face Deidentification.

10ìg16 Arrays/Slide5 mg 500 G 50 UG16 Arrays/Slide

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#33074206   2020/10/12 To Up

Does objectively measured prolonged standing for desk work result in lower ratings of perceived low back pain than sitting? A systematic review and meta-analysis.

Prolonged sitting has been shown to induce transient low back pain (LBP). Height adjustable office desks now present the opportunity to replace sitting with standing in the workplace. Since standing has also been associated with LBP, this may not be an advisable alternative.
Diana De Carvalho, Ryan Greene, Michelle Swab, Marshall Godwin

2851 related Products with: Does objectively measured prolonged standing for desk work result in lower ratings of perceived low back pain than sitting? A systematic review and meta-analysis.

100 ul50 ul50 ul0.1ml (1mg/ml)100 ul

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#33073975   2020/10/19 To Up

MOF-Assisted Synthesis of Highly Mesoporous CrO/SiO Nanohybrids for Efficient Lewis-Acid-Catalyzed Reactions.

The facile fabrication of porous solid acids is highly desired for replacing hazardous liquid acids for many acid-catalyzed reactions in the industry. Herein, we present a bottom-up strategy to construct ultrastable mesoporous CrO/SiO nanohybrids (denoted as Meso-Cr-Si-O) with highly dispersed Lewis acid sites by pyrolysis of a [email protected] precursor prepared via nanocasting by a reverse double-solvent approach, which can guarantee the efficient encapsulation of SiO nanoparticles (NPs) inside the MIL-101 pores. The pore environment of Meso-Cr-Si-O can be well tuned by simply controlling the amount of silica within the MIL-101 pores and the pyrolysis temperature. Pyridine adsorption experiments demonstrate that the density of Lewis acidic sites in the obtained Meso-Cr-Si-O is much higher than that of MIL-101-derived CrO NPs. Benefitting from its highly mesoporous nanostructure with abundant acid sites, the optimal Meso-Cr-Si-O exhibits a significantly improved catalytic activity for the Lewis-acid-catalyzed Meerwein-Ponndorf-Verley reduction of cyclohexanone with 4.5 times higher yield of cyclohexanol than that of the MIL-101-derived CrO NPs, representing the first efficient CrO-based catalytic system for this reaction.
Fengfeng Chen, Kui Shen, Yitao Yang, Haigen Huang, Yingwei Li

2769 related Products with: MOF-Assisted Synthesis of Highly Mesoporous CrO/SiO Nanohybrids for Efficient Lewis-Acid-Catalyzed Reactions.

1 G10 mg5 g0.1ml (1mg/ml) 1 G 100 G10 mg 500 G 1 G

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