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Copyright of Remote Sensing for Natural Resources is the property of Remote Sensing for Natural Resources Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To identify potential subtypes of attention deficit hyperactivity disorder (ADHD) symptoms among middle school students and further explore the association between these subtypes and internet gaming addiction. Methods A stratified random sampling method was used to select 2 100 students from six middle schools in Bijie City, Guizhou Province. The Internet Gaming Disorder Scale (IGDS) and the Barkley Current Symptom Scale (BCSS) were administered for assessment Latent Profile Analysis (LPA) was employed to determine the latent classifications of ADHD symptoms, followed by the application of a robust three 一 step approach to analyze the relationship between these classifications and internet gaming addiction. To assess the relationship between ADHD symptom classifications and the risk of internet gaming addiction, binary Logistic regression analysis was conducted, controlling for demographic variables such as gender and age, to clarify the predictive effect of ADHD symptoms on the risk of internet gaming addiction. Results The prevalence rate of internet gaming addiction among middle school students was found to be 4. 57% (n 二 96). Latent profile analysis identified three potential subtypes of ADHD symptoms: low symptom subtype (n = 1 058, 50.4%), moderate symptom subtype (況二 829, 39. 5%), and high symptom subtype (n 二 213, 10. 1%). Further analysis indicated statistically significant differences in internet gaming addiction scores among the ADHD symptom subtypes 二 547. 438, P < 0. 001), with the high symptom subtype scoring the highest, followed by the moderate symptom subtype, and the low symptom subtype (scores were 26. 79 ± 0. 54, 19. 47 ± 0. 26, 14. 75 ± 0. 19, respectively). After adjusting for demographic variables such as gender and ethnicity and conducting multiple comparisons, the association between moderate and high levels of ADHD symptoms and the risk of internet gaming addiction remained significant {OR values respectively were (1. 25, 95% CI：1. 58 - 1. 35) and (1. 14, 95% CI: 1. 08 - 1. 20)), while the impact of the low symptom level was not significant. Conclusion There is significant heterogeneity in ADHD symptoms among middle school students and different latent subtypes of ADHD symptoms are significantly associated with internet gaming addiction. Students with higher levels of ADHD symptoms are more likely to have higher internet gaming addiction scores. Schools and families should pay more attention to middle school students exhibiting more severe ADHD symptoms to promote mental health development. [ABSTRACT FROM AUTHOR]

Copyright of Science & Technology of Cereals, Oils & Foods is the property of Science & Technology of Cereals, Oils & Foods Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Earth Sciences & Environment is the property of Journal of Earth Sciences & Environment and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Northeast Petroleum University is the property of Journal of Northeast Petroleum University Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Petroleum Geology & Recovery Efficiency is the property of Petroleum Geology & Recovery Efficiency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Clinical Neurosurgery / Linchuang Shenjingwaike Zazhi is the property of Editorial Board of Journal of Clinical Neurosurgery and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To investigate the anti-prostate cancer activity, pharmacokinetic analysis and acute toxicity of 17β-hydroxysteroid dehydrogenase 3 (17β-HSD3) inhibitor. Methods The logarithmic growth phase androgen-dependent prostate cancer LNCaP cells were divided into the blank control group (Con group), curcumin group (Cur group, Cur 150 μmol/L), androgen receptor (AR) inhibitor group (AR inhibitor group, 5 μmol/L) and curcumin analog H7 group (H7 group, H7 150 μmol/L). After grouping treatment, the xCELLience RTCA DP cell analyzer was used to detect cell viability, and flow cytometry was used to detect cell apoptosis. The changes of Caspase-3 and AR protein expression levels in cells were detected by Western blot assay. Thirty-two C57 mice were divided into 4 groups (n=8 for each group), namely the blank control group and the high, medium and low-dose curcumin analog H7 groups. The high, medium and low-dose groups of mice were treated with 1% carboxymethyl sodium cellulose (CMC-Na) dissolved H7 (100, 50 and 25 mg/kg), and gavage once a day. At the same time, mice in the blank control group were gavage 1% CMC-Na to observe whether the mice were dead or abnormal. After 14 days, samples were taken and stained with hematoxylin-eosin (HE) to observe the pathological changes of liver and kidney. Ten SD rats were used to gavage with 1% CMC-Na dissolved H7 (5 mg/kg), and then the plasma concentration was detected by high performance liquid chromatography (HPLC) to analyze the pharmacokinetic parameters. In addition, another 10 SD rats were taken and H7 (5 mg/kg) was gavage for 30 min. The drug concentrations in rat brain, liver, spleen, lung, small intestine, stomach, kidney, heart and testis were detected by HPLC, and the distribution of the drug tissue was investigated. Results Compared with the Con group, the cell index (CI value) of LNCaP cells significantly decreased in the Cur group, AR inhibitor group and H7 group. The flow cytometry results showed that the apoptosis rate was significantly increased (P＜0.05). The Western blot results showed that Caspase-3 protein expression levels were significantly increased (P＜0.05), while AR protein expression levels decreased (P＜0.05). Compared with Cur group and AR inhibitor group, flow cytometry results showed that the apoptosis rate was significantly increased in H7 group (P＜0.05). After treatment with H7 for 14 days, no abnormalities such as increased activity, salivation, convulsions and coma were found in the mice. Compared with the control group, HE staining showed no obvious pathological changes in mouse liver and kidney. The results of pharmacokinetic parameters showed that the area under the curve (AUC) was (557.31±36.12) mg/(L·h), the peak concentration (Cmax) was (36.92±1.29) mg/L, the highest peak time (tmax) was 2 h and the elimination half-life (t1/2) was (22.13±1.74) h. The H7 concentrations in the small intestine were 5 000 times higher than that in brain tissue. Conclusion As a 17β-HSD3 inhibitor, H7 has obvious anti-hormone-dependent prostate cancer activity and good pharmacokinetic parameters, no obvious acute toxicity, mainly gastrointestinal absorption, and has further research and development prospects. [ABSTRACT FROM AUTHOR]

Copyright of China Brewing is the property of China Brewing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Preventive Veterinary Medicine / Zhongguo Yufang Shouyi Xuebao is the property of Chinese Journal of Preventive Veterinary Medicine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Yingyong Shengtai Xuebao is the property of Chinese Journal of Applied Ecology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of the Tianjin Polytechnic University / Tianjin Gongye Daxue Xuebao is the property of Journal of Tianjin Polytechnic University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Southern Agriculture is the property of Journal of Southern Agriculture and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Objectives] This study aims to determine the effects on rice plant and the population dynamics of the brown planthopper Nilaparvata lugens(BPH). [Methods] The contents of oxalic acid, reducing sugars and soluble proteins in the rice seedlings were determined. And, the population life table of BPH was constructed. [Results] The results showed that the contents of reducing sugar in glutinous rice seedlings treated with 3 fungicides with high doses was significantly lower than the control; the C/N ratio also decreased while had no significantly difference; the contents of oxalic acid and soluble protein also had no significantly changes. On the contrary, the C/N ratio in japonica rice seedlings treated with fungicides increased to some extent. While, the contents of oxalic acid, reducing sugar and soluble protein had no significantly changes. When BPH feeding was applied on the treated glutinous rice seedlings, the development period of the 5 instar nymphs, the full life development duration and the life span of female were all extended, and the population doubling time, the average generation time, the index of population trend and the relative fitness were all increased. When BPH feeding was applied on the treated japonica rice seedlings, the index of population trend and the relative fitness were decreased. It is noteworthy that the index of population trend feeding on japonica rice seedlings was always higher than that feeding on glutinous rice seedlings. [Conclusions] High dose of three fungicides treatment could not only alter the plant physiological and biochemical indexes but also had different effects on the contents of related substances in different varieties of rice seedlings, which could indirectly affect the developmental dynamics of BPH population. [ABSTRACT FROM AUTHOR]

Copyright of Journal of the Tianjin Polytechnic University / Tianjin Gongye Daxue Xuebao is the property of Journal of Tianjin Polytechnic University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)