Vehicle detection plays a crucial role in the field of autonomous driving technology.However,directly applying deep learning-based object detection algorithms to complex road scene images often leads to subpar perform...Vehicle detection plays a crucial role in the field of autonomous driving technology.However,directly applying deep learning-based object detection algorithms to complex road scene images often leads to subpar performance and slow inference speeds in vehicle detection.Achieving a balance between accuracy and detection speed is crucial for real-time object detection in real-world road scenes.This paper proposes a high-precision and fast vehicle detector called the feature-guided bidirectional pyramid network(FBPN).Firstly,to tackle challenges like vehicle occlusion and significant background interference,the efficient feature filtering module(EFFM)is introduced into the deep network,which amplifies the disparities between the features of the vehicle and the background.Secondly,the proposed global attention localization module(GALM)in the model neck effectively perceives the detailed position information of the target,improving both the accuracy and inference speed of themodel.Finally,the detection accuracy of small-scale vehicles is further enhanced through the utilization of a four-layer feature pyramid structure.Experimental results show that FBPN achieves an average precision of 60.8% and 97.8% on the BDD100K and KITTI datasets,respectively,with inference speeds reaching 344.83 frames/s and 357.14 frames/s.FBPN demonstrates its effectiveness and superiority by striking a balance between detection accuracy and inference speed,outperforming several state-of-the-art methods.展开更多
Zinc is an essential element and serves as a structural or catalytic component in many proteins.Two families of transporters are involved in maintaining cellular zinc homeostasis:the ZIP(SLC39A)family that facilitates...Zinc is an essential element and serves as a structural or catalytic component in many proteins.Two families of transporters are involved in maintaining cellular zinc homeostasis:the ZIP(SLC39A)family that facilitates zinc influx into the cytoplasm,and the ZnT(SLC30A)family that facilitates zinc efflux from the cytoplasm.Zinc dyshomeostasis caused by the dysfunction of zinc transporters can contribute to the initiation or progression of various cancers,including prostate cancer,breast cancer,and pancreatic cancer.In addition,intracellular zinc fluctuations lead to the disturbance of certain signaling pathways involved in the malignant properties of cancer cells.This review briefly summarizes our current understanding of zinc dyshomeostasis in cancer,and discusses the potential roles of zinc or zinc transporters in cancer therapy.展开更多
Rice is the main grain crop in China. With global warming, drought and water shortage have become one of the important factors limiting rice production. Improving the drought resistance of rice can effectively allevia...Rice is the main grain crop in China. With global warming, drought and water shortage have become one of the important factors limiting rice production. Improving the drought resistance of rice can effectively alleviate the loss of rice yield caused by drought. In this paper, the research progress on rice drought resistance and its evaluation methods, mapping of QTLs for drought resistance-related traits, and mining for drought resistance genes were reviewed, and molecular breeding for drought resistance in rice was prospected.展开更多
基金funded by Ministry of Science and Technology of the People’s Republic of China,Grant Numbers 2022YFC3800502Chongqing Science and Technology Commission,Grant Number cstc2020jscx-dxwtBX0019,CSTB2022TIAD-KPX0118,cstc2020jscx-cylhX0005 and cstc2021jscx-gksbX0058.
文摘Vehicle detection plays a crucial role in the field of autonomous driving technology.However,directly applying deep learning-based object detection algorithms to complex road scene images often leads to subpar performance and slow inference speeds in vehicle detection.Achieving a balance between accuracy and detection speed is crucial for real-time object detection in real-world road scenes.This paper proposes a high-precision and fast vehicle detector called the feature-guided bidirectional pyramid network(FBPN).Firstly,to tackle challenges like vehicle occlusion and significant background interference,the efficient feature filtering module(EFFM)is introduced into the deep network,which amplifies the disparities between the features of the vehicle and the background.Secondly,the proposed global attention localization module(GALM)in the model neck effectively perceives the detailed position information of the target,improving both the accuracy and inference speed of themodel.Finally,the detection accuracy of small-scale vehicles is further enhanced through the utilization of a four-layer feature pyramid structure.Experimental results show that FBPN achieves an average precision of 60.8% and 97.8% on the BDD100K and KITTI datasets,respectively,with inference speeds reaching 344.83 frames/s and 357.14 frames/s.FBPN demonstrates its effectiveness and superiority by striking a balance between detection accuracy and inference speed,outperforming several state-of-the-art methods.
基金This work was supported by the National Natural Science Foundation of China(Grant Nos.81802927 and 81970255)the Science&Technology Development Fund of Tianjin Education Commission for Higher Education(Grant No.2017KJ228).
文摘Zinc is an essential element and serves as a structural or catalytic component in many proteins.Two families of transporters are involved in maintaining cellular zinc homeostasis:the ZIP(SLC39A)family that facilitates zinc influx into the cytoplasm,and the ZnT(SLC30A)family that facilitates zinc efflux from the cytoplasm.Zinc dyshomeostasis caused by the dysfunction of zinc transporters can contribute to the initiation or progression of various cancers,including prostate cancer,breast cancer,and pancreatic cancer.In addition,intracellular zinc fluctuations lead to the disturbance of certain signaling pathways involved in the malignant properties of cancer cells.This review briefly summarizes our current understanding of zinc dyshomeostasis in cancer,and discusses the potential roles of zinc or zinc transporters in cancer therapy.
基金Supported by Natural Science Foundation of Anhui Province (1908085MC93)Major Science and Technology Project of Anhui Province (2021d06050002)Anhui Province Joint Research on Improved Crop Varieties (Rice)。
文摘Rice is the main grain crop in China. With global warming, drought and water shortage have become one of the important factors limiting rice production. Improving the drought resistance of rice can effectively alleviate the loss of rice yield caused by drought. In this paper, the research progress on rice drought resistance and its evaluation methods, mapping of QTLs for drought resistance-related traits, and mining for drought resistance genes were reviewed, and molecular breeding for drought resistance in rice was prospected.
