National Academy Science Letters最新文献_第10页

Unveiling the Bacterial Endosymbionts in Mustard Aphid, Lipaphis erysimi pseudobrassicae (Davis): An Unexplored Dimension of Infection Dynamics 揭示芥子蚜 Lipaphis erysimi pseudobrassicae (Davis) 的细菌内共生体：感染动力学中一个尚未探索的层面

IF 1.2 4区综合性期刊

National Academy Science Letters Pub Date : 2024-09-02 DOI: 10.1007/s40009-024-01425-0

Somala Karthik, Gummudala Yashaswini, M. S. Sai Reddy, U. Mukherjee

{"title":"Unveiling the Bacterial Endosymbionts in Mustard Aphid, Lipaphis erysimi pseudobrassicae (Davis): An Unexplored Dimension of Infection Dynamics","authors":"Somala Karthik, Gummudala Yashaswini, M. S. Sai Reddy, U. Mukherjee","doi":"10.1007/s40009-024-01425-0","DOIUrl":"10.1007/s40009-024-01425-0","url":null,"abstract":"<div>Mustard aphid, Lipaphis erysimi pseudobrassicae is an insect pest that feeds on phloem sap, causing significant damage to crops through direct feeding and virus transmission. This pest species harbors both primary and secondary endosymbionts that play crucial roles in their survival and interaction with the host plant. Among these endosymbionts, Buchnera aphidicola is the primary symbiont that compensates for nutrient deficiencies in the phloem sap diet, while several secondary endosymbionts, like Wolbachia sp, Arsenophonus sp, Rickettsia sp, Hamiltonella sp, Serratia sp and Cardinium sp serve various functional roles in the aphids. To understand the association between these primary and secondary endosymbionts in L. e. pseudobrassicae, we conducted species confirmation studies in 16 populations collected from 13 different states and 1 Union territory in India and used species-specific primers targeting 16S rRNA gene to detect the presence of these endosymbionts. The PCR amplification confirmed the occurrence of Buchnera sp in all individual aphids with 100% occurrence, followed by Wolbachia sp, Rickettsia sp, and Hamiltonella sp with 81.25% incidence and Cardinium sp least (31.25%). Overall, the current study revealed the presence of bacterial endosymbionts in L. e. pseudobrassicae populations from India, indicating the need for further research to better understand the implications of these endosymbionts on the biology of aphids and their potential impacts on crop health and management.</div>","PeriodicalId":717,"journal":{"name":"National Academy Science Letters","volume":"48 1","pages":"1 - 5"},"PeriodicalIF":1.2,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Shallow Convolution Neural Network Architecture for Malignancy Identification from Brain Images 从大脑图像中识别恶性肿瘤的浅卷积神经网络架构

IF 1.2 4区综合性期刊

National Academy Science Letters Pub Date : 2024-08-29 DOI: 10.1007/s40009-024-01420-5

Chandni, Monika Sachdeva, Alok Kumar Singh Kushwaha

{"title":"Shallow Convolution Neural Network Architecture for Malignancy Identification from Brain Images","authors":"Chandni, Monika Sachdeva, Alok Kumar Singh Kushwaha","doi":"10.1007/s40009-024-01420-5","DOIUrl":"10.1007/s40009-024-01420-5","url":null,"abstract":"<div>A brain tumor is characterised by abnormal cell growth in the human brain that can be non-cancerous or malignant (cancerous). Early detection of this malignancy can help to cure it timely and reduce the mortality rate. Technological advancements and the emergence of machine learning and deep learning techniques have aided radiologists in the diagnosis of tumors without the use of invasive methods. The Convolutional Neural Network (CNN) is a popular deep learning architecture that contributes significantly to automating computer vision tasks that otherwise need human intelligence. This paper presents a shallow CNN architecture for the automatic classification of brain images as healthy or malignant. The Grid Search method is employed for architecture design as well as to configure shallow CNN with optimal hyper-parameters. The proposed CNN model is much simpler and shallower as compared to existing pre-trained CNN models, requiring fewer computational resources. It also provides accuracy comparable to the pioneer methods for malignancy identification on two public datasets of brain images without using segmentation and hand-crafted feature engineering.</div>","PeriodicalId":717,"journal":{"name":"National Academy Science Letters","volume":"47 6","pages":"687 - 690"},"PeriodicalIF":1.2,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Glabrin from Pongamia pinnata: Structural Insights and Antibacterial Potential 来自羽扇豆的 Glabrin：结构洞察力和抗菌潜力

IF 1.2 4区综合性期刊

National Academy Science Letters Pub Date : 2024-08-29 DOI: 10.1007/s40009-024-01429-w

Gaurav Bhatt, Anuma Singh, Aditya N. Panda, Sudip Mitra, Latha Rangan

引用次数: 0

Slope Stability Analysis of Earthen Dam under Seismic Loading 地震荷载下土坝的边坡稳定性分析

IF 1.2 4区综合性期刊

National Academy Science Letters Pub Date : 2024-08-27 DOI: 10.1007/s40009-024-01426-z

Neha Chaudhary, Kumar Venkatesh

{"title":"Slope Stability Analysis of Earthen Dam under Seismic Loading","authors":"Neha Chaudhary, Kumar Venkatesh","doi":"10.1007/s40009-024-01426-z","DOIUrl":"10.1007/s40009-024-01426-z","url":null,"abstract":"<div>Researches in geotechnical engineering and day-to-day up-gradation in the earth moving machineries have enabled the construction of high earthen dams more easy and safe. With changing seismic conditions of the tectonic plates, it has become important to design each structure in a way it can withstand various earthquake conditions. Although, flexibility of soil material offers good seismic stability to the structures but stability of earthen structures depends largely on geometry, material properties and different conditions it has to bear during its design life. An earthen dam designed keeping all these aspects in mind, is a cost-efficient method of retaining water. This work is centered around the analysis of slope stability of a section of Durgawati Earthen Dam built in Kaimur district of Bihar. The study takes into concern the behavior of slope of the earthen dam under different drawdown conditions along with seismic conditions developed. Various methods have been developed for slope stability analysis but all have some or the other limitations. Thus, the exact behavior of the dam in real-time is not predictable. Here, a comparative analysis of conventional method and finite element method has been run. In the study, it has been found that the difference in conventional and finite element method can reach upto 40%. The change of factor of safety (FOS) in different situations gives us an overview of the crucial phase in dam’s design life.</div>","PeriodicalId":717,"journal":{"name":"National Academy Science Letters","volume":"48 1","pages":"45 - 49"},"PeriodicalIF":1.2,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Host Nutrition vis-a-vis Fatty Acid Profile and Reproductive Biology of Fall Armyworm, Spodoptera frugiperda (J.E. Smith) 寄主营养与秋陆虫（Spodoptera frugiperda）（J.E. Smith）脂肪酸谱和繁殖生物学的关系

IF 1.2 4区综合性期刊

National Academy Science Letters Pub Date : 2024-08-27 DOI: 10.1007/s40009-024-01410-7

Vinod K. Padala, N. Ramya, D. Sagar, Hemant Kumar, Mohit Sharma, S. Subramanian

{"title":"Host Nutrition vis-a-vis Fatty Acid Profile and Reproductive Biology of Fall Armyworm, Spodoptera frugiperda (J.E. Smith)","authors":"Vinod K. Padala, N. Ramya, D. Sagar, Hemant Kumar, Mohit Sharma, S. Subramanian","doi":"10.1007/s40009-024-01410-7","DOIUrl":"10.1007/s40009-024-01410-7","url":null,"abstract":"<div>Fall armyworm, Spodoptera frugiperda (J.E. Smith), is a notorious invasive insect pest of many important agricultural crops. Fatty acids play a major role in various physiological processes of the insects which are essential for growth, development and overall insect fitness. The present study was conducted to understand the effect of different hosts such as meridic diet, baby corn and castor on fatty acid profile and on biology of the fall armyworm. The highest per cent of polyunsaturated fatty acid (PUFA) viz., linoleic acid was recorded in adults of meridic diet fed larvae both in male (44.18 ± 0.02) and females (39.84 ± 0.13) as compared to saturated fatty acids (SFAs) and monounsaturated fatty acids (MUFAs). Highest saturated fatty acids such as palmitic (16:0) and stearic acid (18:0) found in adults of baby corn fed larvae in male (40.97 ± 0.18) and castor fed larvae in female (42.10 ± 0.01). The monounsaturated fatty acids per cent were maximum in adults of castor fed larvae (61.48 ± 0.31) in male and baby corn fed larvae in female (56.64 ± 0.23). The highest pupal weight (0.22 ± 0.004 g), male (11.17 ± 0.32 days) and female (12.58 ± 0.28 days) longevity were observed in larvae fed on baby corn. The meridic diet proved as suitable host for rearing with highest gonadosomatic index (GSI) (36.97 ± 1.97), fecundity (1378 ± 70.50 eggs per female) and fertility (91.43 ± 0.71%). This study helps in understanding the effect of host nutrition on fatty acid content in fall armyworm in relation to its reproductive biology.</div>","PeriodicalId":717,"journal":{"name":"National Academy Science Letters","volume":"47 6","pages":"607 - 611"},"PeriodicalIF":1.2,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hesperidin Protects from High-Fat Diet-induced Oxidative Stress in Experimental Hyperlipidemic Wistar Rats 橙皮甙能保护实验性高脂血症 Wistar 大鼠免受高脂饮食引起的氧化应激影响

IF 1.2 4区综合性期刊

National Academy Science Letters Pub Date : 2024-08-27 DOI: 10.1007/s40009-024-01405-4

Raushan Kumar, Mohammad Idreesh Khan, Mona Ebrahim Mohammad Bin Mabkhoot, Fauzia Ashfaq, Syed Ibrahim Rizvi

引用次数: 0

Cyto-genotoxic Alterations in Erythrocytes of Fish, Channa Punctatus Exposed to Benzo[a]Pyrene 暴露于苯并[a]芘的鱼类红细胞的细胞遗传毒性变化

IF 1.2 4区综合性期刊

National Academy Science Letters Pub Date : 2024-08-27 DOI: 10.1007/s40009-024-01418-z

Shikha Dwivedi, Shefalee Singh, Adeel Ahmad Khan, Manoj Kumar, Sunil P. Trivedi

引用次数: 0

Biosorption of Cu+ 2 by Green Algae, Ulva fasciata: Optimization by Response Surface Methodology 绿藻莼菜对 Cu+ 2 的生物吸附：响应面方法优化

IF 1.2 4区综合性期刊

National Academy Science Letters Pub Date : 2024-08-27 DOI: 10.1007/s40009-024-01419-y

Kishore Kumar Kadimpati, Sujatha Sanneboina, Sathish Thadikamala, Krishna Prasad Mondithoka

{"title":"Biosorption of Cu+ 2 by Green Algae, Ulva fasciata: Optimization by Response Surface Methodology","authors":"Kishore Kumar Kadimpati, Sujatha Sanneboina, Sathish Thadikamala, Krishna Prasad Mondithoka","doi":"10.1007/s40009-024-01419-y","DOIUrl":"10.1007/s40009-024-01419-y","url":null,"abstract":"<div>U. fasciata biomass, a green algae was used as adsorbent, investigated and optimized the environmental parameters using central factorial design for the Cu+ 2 removal. Biosorption of Cu+ 2 involves the functional groups –CO, –OH, and N–H of U. fasciata biomass. Various parameters were estimated using Response Surface Methodology (RSM), including pH (4–6), initial Cu+ 2 concentration (60–140 mg L− 1), biomass dosage (0.08–0.40 g L− 1) and temperature (20–40 °C). It was found that the uptake of Cu+ 2 by U. fasciata was 62.31 mg L− 1 at an initial concentration of 80 mg L− 1, a temperature of 35 °C, and a pH of 5.245. In order to analyze the equilibrium data, applied Langmuir, Freundlich, Langmuir-Friendly (L-R), and Redlich-Peterson (L-R) isotherm models. The multiple mechanisms were involved in the removal of Cu+ 2 including chelation, ion-exchange and adsorption on UF biomass. It is believed that the U. fasciata biomass is a suitable material for the removal of Cu+ 2 ions from wastewaters.</div>","PeriodicalId":717,"journal":{"name":"National Academy Science Letters","volume":"47 6","pages":"633 - 637"},"PeriodicalIF":1.2,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40009-024-01419-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Authentication and Quality Evaluation of Herbal Crude Drugs from Indian Markets 印度市场草药原药的鉴定和质量评估

IF 1.2 4区综合性期刊

National Academy Science Letters Pub Date : 2024-08-27 DOI: 10.1007/s40009-024-01411-6

Talat Anjum, V. Narsimhaji, Shevita Pandita, Yashoda, Shiddhamallayya, Sanjay K. Singh, N. Srikant

{"title":"Authentication and Quality Evaluation of Herbal Crude Drugs from Indian Markets","authors":"Talat Anjum, V. Narsimhaji, Shevita Pandita,  Yashoda,  Shiddhamallayya, Sanjay K. Singh, N. Srikant","doi":"10.1007/s40009-024-01411-6","DOIUrl":"10.1007/s40009-024-01411-6","url":null,"abstract":"<div>Medicinal plants or chemical substances derived from plants are the source of therapeutic ingredients considered important drugs currently in use in the world. In India, the AYUSH system has been included in mainstream healthcare and all these traditional systems of medicine rely on herbal crude drugs. Trading in dried raw plant drugs with no traceability to their origin is quite common in Indian markets. The safety, potency and efficacy of herbal drugs depend upon the use of standardized crude raw drugs. Present study serves as baseline information for herbal drug regulatory authorities to have strict guidelines on the sale of crude drugs and also the need for implementation of Good Agricultural and Collection Practices (GACP). In the present study, 295 market samples of 102 crude drugs were studied for quality standards and genuineness. It was found that 17% of the crude market samples were adulterated and 83% were botanically correct species, as these complied with diagnostic macro-microscopical characters of authentic crude drugs. However, the qualitative analysis indicated that the foreign matter, total ash, acid insoluble ash, and water soluble extractive values of these market samples deviated from authentic samples by 5% to > 15%, indicating thereby that samples collected from market may differ in collection time, storage practices like drying process, storage, time /season of collection and geography which may affect its pharmaceutical quality.</div>","PeriodicalId":717,"journal":{"name":"National Academy Science Letters","volume":"47 6","pages":"705 - 711"},"PeriodicalIF":1.2,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Area and Power Modeling of Mod (({2}^{mathbf{n}}-mathbf{K})) Adder Structure for 6-Input Lookup Table Based FPGAs 基于 6 输入查找表的 FPGA 的 Mod ( $${2}^{mathbf{n}}-mathbf{K}$) 加法器结构的面积和功耗建模

IF 1.2 4区综合性期刊

National Academy Science Letters Pub Date : 2024-08-27 DOI: 10.1007/s40009-024-01414-3

Tukur Gupta, Gaurav Verma, Shamim Akhter

引用次数: 0