This opinion focuses on the management of low-and intermediate-risk prostate cancer(PCa)groups,emphasizing the need for additional prognostic factors beyond existing risk categories.Molecular biology and multiparametr...This opinion focuses on the management of low-and intermediate-risk prostate cancer(PCa)groups,emphasizing the need for additional prognostic factors beyond existing risk categories.Molecular biology and multiparametric magnetic resonance imaging(mpMRI)applications are still facing challenges or limitations,whereas nomograms,particularly those predicting pelvic lymph node invasion and therefore associating with aggressive biology,could potentially have a prognostic impact on disease progression.We also discuss the impact of the prostate microenvironment,endocrine dependency,and variations in testosterone levels on cancer biology,introducing new concepts such as endogenous testosterone density.展开更多
Time flies,in the blink of an eye,it is already 2023.The journal Biomedical and Environmental Sciences(BES)has been established for thirty-five years.Today,I am honored to participate in the BES’s 35^(th) anniversary...Time flies,in the blink of an eye,it is already 2023.The journal Biomedical and Environmental Sciences(BES)has been established for thirty-five years.Today,I am honored to participate in the BES’s 35^(th) anniversary symposium,organized by the Chinese Center for Disease Control and Prevention(China CDC).Seeing Director Hongbing Shen,Deputy Director Xiaoming Shi,along colleagues from the center’s affiliated units and departments,as well as fellow researchers,we have come together for this symposium under the theme of“Looking back and looking forward”,I am not only deeply appreciative and thankful,but also envisioning a bright future for BES in the next 35 years.I would like to share my thoughts and hopes under the theme of“Review and Development”.展开更多
Exchanges and mutual learning between the Chinese and foreign civilizations are an important part of human cultural development.The Chinese civilization adopts an all-embracing,open and inclusive attitude to understan...Exchanges and mutual learning between the Chinese and foreign civilizations are an important part of human cultural development.The Chinese civilization adopts an all-embracing,open and inclusive attitude to understand the different views of different civilizations on the connotation of values.The ancient Silk Road has opened a new window of friendship between countries and written a new chapter in the development of mankind.展开更多
CISCE Promotes Stable Global Supply Chain,The China International Supply Chain Expo(CISCE),the world’s first national exhibition on supply chains,yielded fruitful results,with many participating firms saying they are...CISCE Promotes Stable Global Supply Chain,The China International Supply Chain Expo(CISCE),the world’s first national exhibition on supply chains,yielded fruitful results,with many participating firms saying they are looking forward to extended supply chain cooperation.展开更多
Julie:What are you looking at,Sam?Sam:Oh,hi,Julie.I'm looking at Fairview City's weekly snowfall update.Julie:But it's only Monday.Sam:I know.The update is for last week's snowfall.Julie:I see.It's...Julie:What are you looking at,Sam?Sam:Oh,hi,Julie.I'm looking at Fairview City's weekly snowfall update.Julie:But it's only Monday.Sam:I know.The update is for last week's snowfall.Julie:I see.It'sforthesecond weekofthis month,then.Sam:That's right.The datesare from December 8 to December 14.展开更多
The last two decades have witnessed significant advances in our understanding of the evolution of major avian characteristics(1–6)In particular, the spectacular discoveries of fossilized feathered dinosaurs from Chin...The last two decades have witnessed significant advances in our understanding of the evolution of major avian characteristics(1–6)In particular, the spectacular discoveries of fossilized feathered dinosaurs from China and elsewhere have provided key insights into feather evolution (1,2)These fossils indicate that many non-avialan dinosaurs were feathered animals just like living birds.展开更多
When the Airborne Early Warning(AEW) radar transmits medial or high Pulse Repetitive Frequency(PRF) signal,the range ambiguity occurs.The clutter of short-range clutter has serious range dependence problem for non-Sid...When the Airborne Early Warning(AEW) radar transmits medial or high Pulse Repetitive Frequency(PRF) signal,the range ambiguity occurs.The clutter of short-range clutter has serious range dependence problem for non-Side Looking Airborne Radar(non-SLAR).As a result,the clutter plus noise covariance matrix can not be estimated correctly,and the performance of clutter suppression obtained by Space-Time Adaptive Processing(STAP) degrades greatly.The uniform linear array has not elevation degrees;therefore,the short-range clutter can not be suppressed directly.A short-range clutter suppression method is proposed.The method first estimate the elevation angles of the ambiguous short-range gate,then eliminates short-range clutter by space time interpolation and adds moving target protection in the procedure.This method can suppress the short-range clutter well.Simulation results show the validity of the method.展开更多
目标检测是计算机视觉领域的研究热点和基础任务,其中基于锚点(Anchor)的目标检测已在众多领域得到广泛应用。当前锚点选取方法主要面临两个问题:基于特定数据集的先验取值尺寸固定、面对不同场景泛化能力弱。计算锚框的无监督K-means算...目标检测是计算机视觉领域的研究热点和基础任务,其中基于锚点(Anchor)的目标检测已在众多领域得到广泛应用。当前锚点选取方法主要面临两个问题:基于特定数据集的先验取值尺寸固定、面对不同场景泛化能力弱。计算锚框的无监督K-means算法,受初始值影响较大,对目标尺寸较单一的数据集聚类产生的锚点差异较小,无法充分体现网络多尺度输出的特点。针对上述问题,本文提出一种基于多尺度的目标检测锚点构造方法(multi-scale-anchor,MSA),将聚类产生的锚点根据数据集本身的特性进行尺度的缩放和拉伸,优化的锚点即保留原数据集的特点也体现了模型多尺度的优势。另外,本方法应用在训练的预处理阶段,不增加模型推理时间。最后,选取单阶段主流算法YOLO(You Only Look Once),在多个不同场景的红外或工业场景数据集上进行丰富的实验。结果表明,多尺度锚点优化方法MSA能显著提高小样本场景的检测精度。展开更多
In the 21st Century,the native culture of Thailand has become a major inspiration for production of Thai movies,which have boomed,especially in four distinct genres:Thai epics,Muay Thai,horror,and teen movies.The firs...In the 21st Century,the native culture of Thailand has become a major inspiration for production of Thai movies,which have boomed,especially in four distinct genres:Thai epics,Muay Thai,horror,and teen movies.The first three genres are introspective and focus on the local characteristics of the nation by telling stories of Thai history,elaborating on the techniques of Muay Thai,and highlighting local spiritual beliefs.However,Thai teen movies are different because the genre tends to deploy internationalized narratives as part of the country’s efforts to build a Thai cultural identity that permeates global screens.展开更多
针对无人机航拍图像目标检测中视野变化大、时空信息复杂等问题,文中基于YOLOv5(You Only Look Once Version5)架构,提出基于图像低维特征融合的航拍小目标检测模型.引入CA(Coordinate Attention),改进MobileNetV3的反转残差块,增加图...针对无人机航拍图像目标检测中视野变化大、时空信息复杂等问题,文中基于YOLOv5(You Only Look Once Version5)架构,提出基于图像低维特征融合的航拍小目标检测模型.引入CA(Coordinate Attention),改进MobileNetV3的反转残差块,增加图像空间维度信息的同时降低模型参数量.改进YOLOv5特征金字塔网络结构,融合浅层网络中的特征图,增加模型对图像低维有效信息的表达能力,进而提升小目标检测精度.同时为了降低航拍图像中复杂背景带来的干扰,引入无参平均注意力模块,同时关注图像的空间注意力与通道注意力;引入VariFocal Loss,降低负样本在训练过程中的权重占比.在VisDrone数据集上的实验验证文中模型的有效性,该模型在有效提升检测精度的同时明显降低复杂度.展开更多
针对现有混凝土构件裂缝人工检测操作不仅费时、费力,而且易出现错检、误检、漏检,以及部分位置难以开展检测的问题,提出一种基于深度学习YOLOX(You Only Look Once)算法的混凝土构件裂缝智能化检测方法;首先采集、整理包含各类混凝土...针对现有混凝土构件裂缝人工检测操作不仅费时、费力,而且易出现错检、误检、漏检,以及部分位置难以开展检测的问题,提出一种基于深度学习YOLOX(You Only Look Once)算法的混凝土构件裂缝智能化检测方法;首先采集、整理包含各类混凝土构件的典型裂缝图像,并通过图像数据增强建立Pascal VOC数据集,然后基于Facebook公司开发的深度学习框架Pytorch,利用数据集训练YOLOX算法,并进行裂缝识别和验证;将训练完成后YOLOX算法移植至搭载安卓系统的手机端,进行现场实时检测操作。结果表明:在迭代次数为700时,混凝土构件裂缝识别精度可达88.84%,能有效筛分混凝土构件表面裂缝,并排除其他干扰项,证明了所提出的方法对裂缝具有较高的识别精度和广泛的适用性;经试验测试,移植至手机端的YOLOX算法能在提升便携性的同时保证高效、准确的检测效果,具有良好的应用前景。展开更多
Drone or unmanned aerial vehicle(UAV)technology has undergone significant changes.The technology allows UAV to carry out a wide range of tasks with an increasing level of sophistication,since drones can cover a large ...Drone or unmanned aerial vehicle(UAV)technology has undergone significant changes.The technology allows UAV to carry out a wide range of tasks with an increasing level of sophistication,since drones can cover a large area with cameras.Meanwhile,the increasing number of computer vision applications utilizing deep learning provides a unique insight into such applications.The primary target in UAV-based detection applications is humans,yet aerial recordings are not included in the massive datasets used to train object detectors,which makes it necessary to gather the model data from such platforms.You only look once(YOLO)version 4,RetinaNet,faster region-based convolutional neural network(R-CNN),and cascade R-CNN are several well-known detectors that have been studied in the past using a variety of datasets to replicate rescue scenes.Here,we used the search and rescue(SAR)dataset to train the you only look once version 5(YOLOv5)algorithm to validate its speed,accuracy,and low false detection rate.In comparison to YOLOv4 and R-CNN,the highest mean average accuracy of 96.9%is obtained by YOLOv5.For comparison,experimental findings utilizing the SAR and the human rescue imaging database on land(HERIDAL)datasets are presented.The results show that the YOLOv5-based approach is the most successful human detection model for SAR missions.展开更多
The Lunar New Year has increasingly become a common festival of people throughout the world.CHINESE people,and people throughout the world,are looking forward to welcoming the Year of the Dragon,which falls on Februar...The Lunar New Year has increasingly become a common festival of people throughout the world.CHINESE people,and people throughout the world,are looking forward to welcoming the Year of the Dragon,which falls on February 10,2024.The Dragon is considered the most auspicious of the 12 signs in the Chinese zodiac and this year is specifically the Year of the Wood Dragon,the first since 1964.According to Lifestyle Asia,“Wood Dragons enjoy fulfilling careers.They’re likely to materialize all their ambitions into actions,coming up with truly revolutionary ideas.”展开更多
I was pleasantly surprised when visiting the new Louvre Museum in Abu Dhabi,magnificently designed,and created by the great French architect Jean Nouvel to prove the creative force of the world's diverse civilisat...I was pleasantly surprised when visiting the new Louvre Museum in Abu Dhabi,magnificently designed,and created by the great French architect Jean Nouvel to prove the creative force of the world's diverse civilisations.All of them are represented in this imaginative space on the island of Saadiyat overlooking the Persian Gulf.展开更多
Lawmakers testify to the power of culture combined with tourism to spur economic growth and enhance the confidence of the nation.“Cultural economics.”That was President Xi Jinping’s thrust in his discussions with f...Lawmakers testify to the power of culture combined with tourism to spur economic growth and enhance the confidence of the nation.“Cultural economics.”That was President Xi Jinping’s thrust in his discussions with fellow deputies to the National People’s Congress(NPC)from Jiangsu Province during last year’s NPC session.Economically developed provinces generally see a cultural boom,he said.“It is worthwhile looking into the reason behind it.”展开更多
The transformation of Yundang Lake from a stinky lake to an urban reception hall has made it a showcase of ecologival restoration in China.BEFORE settling down in the City of Xiamen,Scott Patrick and his wife spent lo...The transformation of Yundang Lake from a stinky lake to an urban reception hall has made it a showcase of ecologival restoration in China.BEFORE settling down in the City of Xiamen,Scott Patrick and his wife spent long hours searching online for just the right part of the city.When they saw Yundang Lake in west Xiamen,the couple knew they had hit the jackpot.“The picture of the beautiful lake circled by lush vegetation caught our attention.We knew this was the place we were looking for,”said Patrick.Later,after setting foot in Xiamen,he told himself he had definitely made the right life decision.展开更多
Before settling down in the city of Xiamen,Scott Patrick and his wife spent long hours searching online for just the right part of the city.When they saw Yundang Lake in west Xiamen,the couple knew they had hit the ja...Before settling down in the city of Xiamen,Scott Patrick and his wife spent long hours searching online for just the right part of the city.When they saw Yundang Lake in west Xiamen,the couple knew they had hit the jackpot.“The picture of the beautiful lake circled by lush vegetation caught our attention.We knew this was the place we were looking for,”said Patrick.Later,after setting foot in Xiamen,he told himself he had definitely made the right life decision.展开更多
Dear Grandpa Zhong,You are my hero and the person I learn from.I really can’t tell how much I respect and love you.You have spent your life in the field of medicine.You have devoted yourself to medical research and l...Dear Grandpa Zhong,You are my hero and the person I learn from.I really can’t tell how much I respect and love you.You have spent your life in the field of medicine.You have devoted yourself to medical research and looking after patients.展开更多
文摘This opinion focuses on the management of low-and intermediate-risk prostate cancer(PCa)groups,emphasizing the need for additional prognostic factors beyond existing risk categories.Molecular biology and multiparametric magnetic resonance imaging(mpMRI)applications are still facing challenges or limitations,whereas nomograms,particularly those predicting pelvic lymph node invasion and therefore associating with aggressive biology,could potentially have a prognostic impact on disease progression.We also discuss the impact of the prostate microenvironment,endocrine dependency,and variations in testosterone levels on cancer biology,introducing new concepts such as endogenous testosterone density.
文摘Time flies,in the blink of an eye,it is already 2023.The journal Biomedical and Environmental Sciences(BES)has been established for thirty-five years.Today,I am honored to participate in the BES’s 35^(th) anniversary symposium,organized by the Chinese Center for Disease Control and Prevention(China CDC).Seeing Director Hongbing Shen,Deputy Director Xiaoming Shi,along colleagues from the center’s affiliated units and departments,as well as fellow researchers,we have come together for this symposium under the theme of“Looking back and looking forward”,I am not only deeply appreciative and thankful,but also envisioning a bright future for BES in the next 35 years.I would like to share my thoughts and hopes under the theme of“Review and Development”.
文摘Exchanges and mutual learning between the Chinese and foreign civilizations are an important part of human cultural development.The Chinese civilization adopts an all-embracing,open and inclusive attitude to understand the different views of different civilizations on the connotation of values.The ancient Silk Road has opened a new window of friendship between countries and written a new chapter in the development of mankind.
文摘CISCE Promotes Stable Global Supply Chain,The China International Supply Chain Expo(CISCE),the world’s first national exhibition on supply chains,yielded fruitful results,with many participating firms saying they are looking forward to extended supply chain cooperation.
文摘Julie:What are you looking at,Sam?Sam:Oh,hi,Julie.I'm looking at Fairview City's weekly snowfall update.Julie:But it's only Monday.Sam:I know.The update is for last week's snowfall.Julie:I see.It'sforthesecond weekofthis month,then.Sam:That's right.The datesare from December 8 to December 14.
基金supported by the National Natural Science Foundation of China (41688103, 91514302)
文摘The last two decades have witnessed significant advances in our understanding of the evolution of major avian characteristics(1–6)In particular, the spectacular discoveries of fossilized feathered dinosaurs from China and elsewhere have provided key insights into feather evolution (1,2)These fossils indicate that many non-avialan dinosaurs were feathered animals just like living birds.
基金Support by the National Natural Science Foundation of China(No.60736009 and No.60825104)
文摘When the Airborne Early Warning(AEW) radar transmits medial or high Pulse Repetitive Frequency(PRF) signal,the range ambiguity occurs.The clutter of short-range clutter has serious range dependence problem for non-Side Looking Airborne Radar(non-SLAR).As a result,the clutter plus noise covariance matrix can not be estimated correctly,and the performance of clutter suppression obtained by Space-Time Adaptive Processing(STAP) degrades greatly.The uniform linear array has not elevation degrees;therefore,the short-range clutter can not be suppressed directly.A short-range clutter suppression method is proposed.The method first estimate the elevation angles of the ambiguous short-range gate,then eliminates short-range clutter by space time interpolation and adds moving target protection in the procedure.This method can suppress the short-range clutter well.Simulation results show the validity of the method.
文摘目标检测是计算机视觉领域的研究热点和基础任务,其中基于锚点(Anchor)的目标检测已在众多领域得到广泛应用。当前锚点选取方法主要面临两个问题:基于特定数据集的先验取值尺寸固定、面对不同场景泛化能力弱。计算锚框的无监督K-means算法,受初始值影响较大,对目标尺寸较单一的数据集聚类产生的锚点差异较小,无法充分体现网络多尺度输出的特点。针对上述问题,本文提出一种基于多尺度的目标检测锚点构造方法(multi-scale-anchor,MSA),将聚类产生的锚点根据数据集本身的特性进行尺度的缩放和拉伸,优化的锚点即保留原数据集的特点也体现了模型多尺度的优势。另外,本方法应用在训练的预处理阶段,不增加模型推理时间。最后,选取单阶段主流算法YOLO(You Only Look Once),在多个不同场景的红外或工业场景数据集上进行丰富的实验。结果表明,多尺度锚点优化方法MSA能显著提高小样本场景的检测精度。
文摘In the 21st Century,the native culture of Thailand has become a major inspiration for production of Thai movies,which have boomed,especially in four distinct genres:Thai epics,Muay Thai,horror,and teen movies.The first three genres are introspective and focus on the local characteristics of the nation by telling stories of Thai history,elaborating on the techniques of Muay Thai,and highlighting local spiritual beliefs.However,Thai teen movies are different because the genre tends to deploy internationalized narratives as part of the country’s efforts to build a Thai cultural identity that permeates global screens.
文摘针对无人机航拍图像目标检测中视野变化大、时空信息复杂等问题,文中基于YOLOv5(You Only Look Once Version5)架构,提出基于图像低维特征融合的航拍小目标检测模型.引入CA(Coordinate Attention),改进MobileNetV3的反转残差块,增加图像空间维度信息的同时降低模型参数量.改进YOLOv5特征金字塔网络结构,融合浅层网络中的特征图,增加模型对图像低维有效信息的表达能力,进而提升小目标检测精度.同时为了降低航拍图像中复杂背景带来的干扰,引入无参平均注意力模块,同时关注图像的空间注意力与通道注意力;引入VariFocal Loss,降低负样本在训练过程中的权重占比.在VisDrone数据集上的实验验证文中模型的有效性,该模型在有效提升检测精度的同时明显降低复杂度.
文摘针对现有混凝土构件裂缝人工检测操作不仅费时、费力,而且易出现错检、误检、漏检,以及部分位置难以开展检测的问题,提出一种基于深度学习YOLOX(You Only Look Once)算法的混凝土构件裂缝智能化检测方法;首先采集、整理包含各类混凝土构件的典型裂缝图像,并通过图像数据增强建立Pascal VOC数据集,然后基于Facebook公司开发的深度学习框架Pytorch,利用数据集训练YOLOX算法,并进行裂缝识别和验证;将训练完成后YOLOX算法移植至搭载安卓系统的手机端,进行现场实时检测操作。结果表明:在迭代次数为700时,混凝土构件裂缝识别精度可达88.84%,能有效筛分混凝土构件表面裂缝,并排除其他干扰项,证明了所提出的方法对裂缝具有较高的识别精度和广泛的适用性;经试验测试,移植至手机端的YOLOX算法能在提升便携性的同时保证高效、准确的检测效果,具有良好的应用前景。
文摘Drone or unmanned aerial vehicle(UAV)technology has undergone significant changes.The technology allows UAV to carry out a wide range of tasks with an increasing level of sophistication,since drones can cover a large area with cameras.Meanwhile,the increasing number of computer vision applications utilizing deep learning provides a unique insight into such applications.The primary target in UAV-based detection applications is humans,yet aerial recordings are not included in the massive datasets used to train object detectors,which makes it necessary to gather the model data from such platforms.You only look once(YOLO)version 4,RetinaNet,faster region-based convolutional neural network(R-CNN),and cascade R-CNN are several well-known detectors that have been studied in the past using a variety of datasets to replicate rescue scenes.Here,we used the search and rescue(SAR)dataset to train the you only look once version 5(YOLOv5)algorithm to validate its speed,accuracy,and low false detection rate.In comparison to YOLOv4 and R-CNN,the highest mean average accuracy of 96.9%is obtained by YOLOv5.For comparison,experimental findings utilizing the SAR and the human rescue imaging database on land(HERIDAL)datasets are presented.The results show that the YOLOv5-based approach is the most successful human detection model for SAR missions.
文摘The Lunar New Year has increasingly become a common festival of people throughout the world.CHINESE people,and people throughout the world,are looking forward to welcoming the Year of the Dragon,which falls on February 10,2024.The Dragon is considered the most auspicious of the 12 signs in the Chinese zodiac and this year is specifically the Year of the Wood Dragon,the first since 1964.According to Lifestyle Asia,“Wood Dragons enjoy fulfilling careers.They’re likely to materialize all their ambitions into actions,coming up with truly revolutionary ideas.”
文摘I was pleasantly surprised when visiting the new Louvre Museum in Abu Dhabi,magnificently designed,and created by the great French architect Jean Nouvel to prove the creative force of the world's diverse civilisations.All of them are represented in this imaginative space on the island of Saadiyat overlooking the Persian Gulf.
文摘Lawmakers testify to the power of culture combined with tourism to spur economic growth and enhance the confidence of the nation.“Cultural economics.”That was President Xi Jinping’s thrust in his discussions with fellow deputies to the National People’s Congress(NPC)from Jiangsu Province during last year’s NPC session.Economically developed provinces generally see a cultural boom,he said.“It is worthwhile looking into the reason behind it.”
文摘The transformation of Yundang Lake from a stinky lake to an urban reception hall has made it a showcase of ecologival restoration in China.BEFORE settling down in the City of Xiamen,Scott Patrick and his wife spent long hours searching online for just the right part of the city.When they saw Yundang Lake in west Xiamen,the couple knew they had hit the jackpot.“The picture of the beautiful lake circled by lush vegetation caught our attention.We knew this was the place we were looking for,”said Patrick.Later,after setting foot in Xiamen,he told himself he had definitely made the right life decision.
文摘Before settling down in the city of Xiamen,Scott Patrick and his wife spent long hours searching online for just the right part of the city.When they saw Yundang Lake in west Xiamen,the couple knew they had hit the jackpot.“The picture of the beautiful lake circled by lush vegetation caught our attention.We knew this was the place we were looking for,”said Patrick.Later,after setting foot in Xiamen,he told himself he had definitely made the right life decision.
文摘Dear Grandpa Zhong,You are my hero and the person I learn from.I really can’t tell how much I respect and love you.You have spent your life in the field of medicine.You have devoted yourself to medical research and looking after patients.
