RAVE: Randomized Noise Shuffling for Fast and Consistent Video Editing with Diffusion Models

Recent advancements in diffusion-based models have demonstrated significant success in generating images from text. However, video editing models have not yet reached the same level of visual quality and user control. To address this, we introduce RAVE, a zero-shot video editing method that leverages pre-trained text-to-image diffusion models without additional training. RAVE takes an input video and a text prompt to produce high-quality videos while preserving the original motion and semantic structure. It employs a novel noise shuffling strategy, leveraging spatio-temporal interactions between frames, to produce temporally consistent videos faster than existing methods. It is also efficient in terms of memory requirements, allowing it to handle longer videos. RAVE is capable of a wide range of edits, from local attribute modifications to shape transformations. In order to demonstrate the versatility of RAVE, we create a comprehensive video evaluation dataset ranging from object-focused scenes to complex human activities like dancing and typing, and dynamic scenes featuring swimming fish and boats. Our qualitative and quantitative experiments highlight the effectiveness of RAVE in diverse video editing scenarios compared to existing methods. Our code, dataset and videos can be found in https://rave-video.github.io.Comment: Project webpage: https://rave-video.github.io , Github: http://github.com/rehg-lab/RAV

Combined effects of niacin and chromium treatment on heart of hyperlipidemic rats

The present study was undertaken to investigate the effects of the combination of niacin and chromium(III)-chloride on heart glutathione (GSH), lipid peroxidation (LPO) levels, serum paraoxonase (PON), gamma-glutamyl transferase (GGT) activities and protein carbonyl contents (PCC) of hyperlipidemic rats. In this study, female Swiss albino rats were used. They were divided into four groups. The animals of the first group (group 1) were fed with pellet chow. The rats (group 11) were fed with a lipogenic diet consisting of 2% cholesterol, 0.5% cholic acid and 20% sunflower oil added to the pellet chow, and given 3% alcoholic water for 60 days. The rats (group 111) were fed with the same lipogenic diet and treated by gavage technique with CrCl(3) 6H(2)O to a dose of 250 mu g/kg and 100 mg/kg niacin for 45 days, 15 days after experimental animals were done hyperlipidemic. Group IV was fed with pellet chow and treated with 250 mu g/kg CrCl(3) 6H(2)O and 100 mg/kg niacin for 45 days. On the 60th day, the heart tissue and blood samples were taken from animals. As a result, heart LPO, serum GGT activity and serum PCC were increased; serum PON activity and heart GSH levels were decreased in hyperlipidemic rats. Treatment with combined niacin and chromium reversed these effects. In conclusion, the combined treatment with niacin and chromium might induce a protective effect on heart tissue

The potential role of combined anti-oxidants against cadmium toxicity on liver of rats

PubMed ID: 18536491Cadmium (Cd), a widely distributed toxic trace metal, has been shown to accumulate in liver after long- and short-term exposure. Cd (2mg/kg/day CdCl2) was intraperitoneally given to rats for eight days. Vitamin C (250mg/kg/day) + vitamin E (250mg/kg/day) + sodium selenate (0.25 mg/kg/day) were given to rats by oral means. The animals were treated by anti-oxidants one hour prior to treatment with Cd every day. The degenerative changes were observed in the groups given only Cd and anti-oxidants + Cd. Metallothionein (MT) immunoreactivity increased in cytoplasm of hepatocytes of the rats given Cd when compared with controls. In a number of cells with Cd and anti-oxidants treatment, immunoreactivity increase was more than in the group given Cd only and nuclear MT expression was also detected. Cell proliferation was assessed with proliferating cell nuclear antigen (PCNA) immunohistochemistry. PCNA expressions increased in all groups more than in the controls. Anti-oxidants treatment increased cell proliferation. In the animals administered with Cd, an increase in serum aspartate (AST) and alanine (ALT) aminotransferases, liver glutathione (GSH) and lipid peroxidation (LPO) levels were observed. On the other hand, in the rats treated with anti-oxidants and Cd, serum AST and ALT, liver glutathione and LPO levels decreased. As a result, these results suggest that combined anti-oxidants treatment might be useful in protection of liver against Cd toxicity. Toxicology and Industrial Health 2007; 23: 393—401. © 2007, Sage Publications. All rights reserved

Effects of parsley (Petroselinum crispum) extract and glibornuride on the kidney of streptozotocin-induced diabetic rats

The purpose of this study was to investigate the effect of parsley (Petroselinum crispum) extract and compare the effects with a hypoglycemic agent glibornuride on the kidney as histological and biochemical in normal and streptozotocin-induced diabetic rats. The parsley extract was administered by gavage technique to rats a dose of 2 g/kg daily for 28 d; 14 d after experimental animals were made diabetic. 5 mg/kg glibornuride were given by same method, 14 d after the experimental animals were made diabetic, to one of the diabetic group and also one of the control group, daily for 28 d. The kidney tissues were examined histologically, blood glucose, serum urea and creatinine levels were determined, spectrophotometrically. The distinct degenerative changes were observed in the kidney tissue of streptozotocin-induced rats. On the other hand, the injury to kidney tissue was minimal or absent in diabetic group given parsley extract. The damage of kidney tissue was minimal in streptozotocin-induced group given glibornuride. Blood glucose, serum urea and creatinine levels significantly increased in diabetic groups. Administration of parsley extracts and glibornuride significantly reduced blood glucose, serum urea and creatinine levels in diabetic groups. According to these results, it is concluded that parsley extract is more effective in comparison to glibornuride in the protection of kidney tissue from the damage of streptozotocin-induced diabetic rats

The effects of combined treatment with niacin and chromium on the renal tissues of hyperlipidemic rats

In this study, 12 months old female Swiss albino rats were used. They were randomly divided into four groups. The animals of group I were fed with pellet chow. Group II were fed with pellet chow and treated with 250 mu g/kg CrCl3.6H(2)o and 100 mg/kg niacinfor 45 days. Group III were fed a lipogenic diet consisting of 2% cholesterol, 0.5% cholicacidand 2%sun flower oil added to the pellet chow, andgiven 3%alcoholic water for 60 days. Group IV were fed with the same lipogeni cdiet for 60 day sand treated by gavage technique to rats at a dose of 250 mu/kg CrCl(3.)6H(2)O and 100 mg/kg niacin for 45 days, 15 days after experimental animals were rendered hyperlipidemic. At the 60th day, renal tissue and blood samples were taken from the animals. The sections were examined under light and electron microscopy. The degenerative changes were much more in the hyperlipidemic rats than the control group. The changes in renal tissue were also observed in hyperlipidemic animals given niacin and chromium. In the hyperlipidemic rats, renal glutathione levels decreased and renal lipid peroxidation levels, and serum urea and creatinine levels were increased. But, renal glutathione levels increased and lipid peroxidation levels and serum urea and creatinine levels decreased in hyperlipidemic rats given niacin and chromium. The purpose of this study was to investigate whether a protective effect of a combination of niacin and chromium is present on the renal tissue of hyperlipidemic rats or not. In conclusion, we can say that niacin and chromium do not have a protective effect on the morphology of the renal tissue of hyperlipidemic rats, except a protective effect on their biochemical parameters