BACKGROUND Microcystic adnexal carcinoma(MAC)is a rare malignant tumor of the skin that is commonly found on the face.It grows slowly and has a low mortality rate.However,for various reasons,including strong histologi...BACKGROUND Microcystic adnexal carcinoma(MAC)is a rare malignant tumor of the skin that is commonly found on the face.It grows slowly and has a low mortality rate.However,for various reasons,including strong histological invasiveness,clinical inexperience and inadequate procedure design,immediate or permanent facial deformity may occur after surgical operations.CASE SUMMARY This article describes a middle-aged female artist who was diagnosed with MAC on the left upper lip.She declined the recommended treatment plan,which included two-stage reconstruction,skin grafting,or surgery that could have resulted in obvious facial dysfunction or esthetic deformity.We accurately designed a personalized procedure involving a“jigsaw puzzle advancement flap”for the patient based on the lesion location and the estimated area of skin loss.The procedure was successful;both pathological R0 resection and immediate and long-term esthetic reconstruction effects were achieved.CONCLUSION This study suggests that when treating facial MAC or other skin malignancies,a surgical team should have sufficient plastic surgery-related knowledge and skills.An optimal surgical plan for an individual is needed to achieve good facial esthetics and functional recovery and shorten the treatment course.展开更多
Current image steganography methods are working by assigning an image as a cover file then embed the payload within it by modifying its pixels,creating the stego image.However,the left traces that are caused by these ...Current image steganography methods are working by assigning an image as a cover file then embed the payload within it by modifying its pixels,creating the stego image.However,the left traces that are caused by these modifications will make steganalysis algorithms easily detect the hidden payload.A coverless data hiding concept is proposed to solve this issue.Coverless does not mean that cover is not required,or the payload can be transmitted without a cover.Instead,the payload is embedded by cover generation or a secret message mapping between the cover file and the payload.In this paper,a new coverless image steganography method has been proposed based on the jigsaw puzzle image generation driven by a secret message.Firstly,the image is divided into equal rows then further divided into equal columns,creating blocks(i.e.,sub-images).Then,according to secret message bits and a proposed mapping function,each block will have tabs/blanks to get the shape of a puzzle piece creating a fully shaped jigsaw puzzle stego-image.After that,the generated jigsaw puzzle image is sent to the receiver.Experimental results and analysis show a good performance in the hiding capacity,security,and robustness compared with existing coverless image steganography methods.展开更多
Benign prostatic hyperplasia(BPH)is a common condition affecting over 50% of men as they reach the 5th decade of their life[1].While over half of these patients have symptoms,it is not clear why some of these men do w...Benign prostatic hyperplasia(BPH)is a common condition affecting over 50% of men as they reach the 5th decade of their life[1].While over half of these patients have symptoms,it is not clear why some of these men do while others do not.The article Solving the benign prostatic hyperplasia puzzle by Keong Tatt Foo[2],delves into the different conundrums urologists face when trying to treat their patients.展开更多
Two-dimensional porous carbon nanosheets(PCNSs)are considered promising anodes for lithium-ion batteries due to their synergetic features arising from both graphene and porous structures.Herein,using naturally abundan...Two-dimensional porous carbon nanosheets(PCNSs)are considered promising anodes for lithium-ion batteries due to their synergetic features arising from both graphene and porous structures.Herein,using naturally abundant and biocompatible sodium humate(SH)as the precursor,PCNSs are prepared from the laboratory scale up to the kilogram scale by a method of a facile ice-templating-induced puzzle coupled with a carbonization strategy.Such obtained SH-derived PCNSs(SH-PCNSs)possess a hierarchical porous structure dominated by mesopores having a specific surface area(~127.192 g^(−1)),pore volume(~0.134 cm3 g^(−1)),sheet-like morphology(~2.18nm in thickness),and nitrogen/oxygen-containing functional groups.Owing to these merits,the SH-PCNSs present impressive Li-ion storage characteristics,including high reversible capacity(1011mAh g^(−1) at 0.1 A g^(−1)),excellent rate capability(465mAh g^(−1) at 5 A g^(−1)),and superior cycle stability(76.8%capacitance retention after 1000 cycles at 5 A g^(−1)).It is noted that the SH-PCNSs prepared from the kilogram-scale production procedure possess comparable electrochemical properties.Furthermore,coupling with a LiNi1/3Co1/3Mn1/3O2 cathode,the full cells deliver a high capacity of 167mAh g^(−1) at 0.2A g^(−1) and exhibit an outstanding energy density of 128.8Whkg^(−1),highlighting the practicability of this porous carbon nanosheets and the potential commercial opportunity of the scalable processing approach.展开更多
From 1985, an increasing gap has emerged between the official statistical measures of meat production and meat consumption in China, which has raised concerns from many researchers using such data. In this paper we re...From 1985, an increasing gap has emerged between the official statistical measures of meat production and meat consumption in China, which has raised concerns from many researchers using such data. In this paper we report the results of 428 observations（survey of 107 urban and rural households×4 quarters） from 7 provinces conducted in 2010, and compare them with the official statistical data from the National Bureau of Statistics of China（NBSC）. We conclude that the main reason for the discrepancy is due to the underreporting of consumption, which is due mainly to the omission of consumption away from home.展开更多
Dear Editor,Obesity has nowadays become a global public health challenge due to its rapidly growing prevalence and interconnection with a wide spectrum of comorbidities.
Based on China's industrial enterprises-customs matched data, this paper utilizes two-tier stochastic frontier analysis method to estimate and verify the extent to which selection effect and competition effect inf...Based on China's industrial enterprises-customs matched data, this paper utilizes two-tier stochastic frontier analysis method to estimate and verify the extent to which selection effect and competition effect influence exporting firms' markup. Our findings suggest that the interaction between selection effect and competition effect ultimately causes actual firm markup to be higher than the baseline markup by 7.11%. Exporting firms' actual markup is higher than the baseline markup by different degrees. In terms of the decomposition of selection effect, TFP explains for 28.05% of selection effect, and nonproductivity factors explain for the rest 71.95%. By controlling for the type of firms' export,the export-productivity paradox only exists for processing trade firms, which shows that with increasing trade facilitation, the policy incentives to encourage firms to export are major contributors to the low export markups.展开更多
We analyze the existing solar neutrino experiment data and show the allowed regions. The result from SNO's salt phase itself restricts quite a lot the allowed region's area. Reactor neutrinos play an important...We analyze the existing solar neutrino experiment data and show the allowed regions. The result from SNO's salt phase itself restricts quite a lot the allowed region's area. Reactor neutrinos play an important role in determining oscillation parameters. KamLAND gives decisive conclusion on the solution to the solar neutrino puzzle, in particular, the spectral distortion in the 766.3 Ty KamLAND data gives another new improvement in the constraint of solar MSW-LMA solutions. We confirm that at 99. 73% C.L. the high-LMA solution is excluded.展开更多
There are diverse opinions about how to solve the Needham Puzzle. Such opinions or schools of thought can be roughly classified into three theories of a) geographical conditions, b) empirical trial and error, and c) p...There are diverse opinions about how to solve the Needham Puzzle. Such opinions or schools of thought can be roughly classified into three theories of a) geographical conditions, b) empirical trial and error, and c) private property rights. Although each school of thought makes sense, they all fail to fully uncover the main reason why, in modern history, China lagged behind western countries in the development of science and technology. In our opinion, the correct solution is to draw on historical experiences, integrate all schools of thought, proceed with an emphasis on the definition and protection of property rights, boost government investment in basic scientific research, strengthen government service functionality, actively develop NGOs, and open more widely to the outside world, with a view of pushing forward China's scientific and technological innovation and accelerating the pace of China's modernization.展开更多
Background:Reconstruction of large scalp defects after tumor resection is common and challenging.Free skin grafting or free flap transfer is always performed.However,these techniques can result in poor functional and ...Background:Reconstruction of large scalp defects after tumor resection is common and challenging.Free skin grafting or free flap transfer is always performed.However,these techniques can result in poor functional and cosmetic outcomes.Methods:In the Second Affiliated Hospital of Soochow University and the Second Affiliated Hospital of Chengdu Medical College,35 patients underwent jigsaw puzzle flap procedures based on a free-style perforator to repair large scalp defects after tumor resection from May 2013 to November 2022.The key to this procedure was to divide a large defect into several smaller parts that correspond to adjacent free-style perforators around the scalp defect.The free-style perforator flaps were designed in different ways,such as propeller flaps,rotation flaps,and V-Y advancement flaps,which were pedicled with free-style perforators.All of the small flaps were then mobilized to the defect and sutured to each other to create a new,large jigsaw puzzle-like flap to cover the large scalp defect.Finally,all the donor sites were closed directly.Results:Overall,35 patients were treated.The average defect size was 72 cm^(2)(range,25-91 cm^(2)).All flaps had a satisfactory appearance after follow-up periods of 6 months-10 years.Local tumor recurrence occurred in one case.Conclusion:The application of a jigsaw puzzle flap based on a free-style perforator is a suitable option for the reconstruction of large scalp defects after resection,yielding satisfactory functional and cosmetic results.展开更多
Many independent films provide a realistic interpretation of everyday events. Passive viewing techniques used by independent scriptwriters and filmmakers require active engagement from the viewer in order to interpret...Many independent films provide a realistic interpretation of everyday events. Passive viewing techniques used by independent scriptwriters and filmmakers require active engagement from the viewer in order to interpret characters and/or events. The following proposes that the ＂expositive puzzle＂ is an example of these techniques. It uses the fim Short Term 12 in order to demonstrate how the ＂expositive puzzle＂ works and to encourage use in real-world interactions in order to avoid interaction based on stereotypes.展开更多
RompecPC is a computerized program designed to create and assemble jigsaw puzzles. The program automatically records the solver’s responses as the number of pieces positioned correctly, the number of correct and inco...RompecPC is a computerized program designed to create and assemble jigsaw puzzles. The program automatically records the solver’s responses as the number of pieces positioned correctly, the number of correct and incorrect movements, the number of times that she/he attempts to move a piece to the same place (perseverations), and the latency and place to which each piece is moved or attempted to be moved. These features facilitate the implementation and evaluation of puzzles while also reducing human error. Therefore, RompePC is a useful tool for the neuropsychological assessment of visuospatial skills in both clinical and experimental research.展开更多
The new parity value of π0 was determined according to the hypothesis of conservation of particle number. The theo-retical pentaquark proton’s parity value was also determined, and it was found that the conservation...The new parity value of π0 was determined according to the hypothesis of conservation of particle number. The theo-retical pentaquark proton’s parity value was also determined, and it was found that the conservation of parity is account nicely for the τ-θ puzzle.展开更多
I wish to explore the idea that thought experiments are best accounted for as a special case of a narrative that features an interplay between puzzles and paradoxes. Furthermore, I believe the more successfully though...I wish to explore the idea that thought experiments are best accounted for as a special case of a narrative that features an interplay between puzzles and paradoxes. Furthermore, I believe the more successfully thought experiments manage to combine puzzles and paradoxes the more insightful and instructive they become. I suggest the latter kind of thought experiments also use the technique of mental variation.展开更多
文摘BACKGROUND Microcystic adnexal carcinoma(MAC)is a rare malignant tumor of the skin that is commonly found on the face.It grows slowly and has a low mortality rate.However,for various reasons,including strong histological invasiveness,clinical inexperience and inadequate procedure design,immediate or permanent facial deformity may occur after surgical operations.CASE SUMMARY This article describes a middle-aged female artist who was diagnosed with MAC on the left upper lip.She declined the recommended treatment plan,which included two-stage reconstruction,skin grafting,or surgery that could have resulted in obvious facial dysfunction or esthetic deformity.We accurately designed a personalized procedure involving a“jigsaw puzzle advancement flap”for the patient based on the lesion location and the estimated area of skin loss.The procedure was successful;both pathological R0 resection and immediate and long-term esthetic reconstruction effects were achieved.CONCLUSION This study suggests that when treating facial MAC or other skin malignancies,a surgical team should have sufficient plastic surgery-related knowledge and skills.An optimal surgical plan for an individual is needed to achieve good facial esthetics and functional recovery and shorten the treatment course.
基金funded by“Taif University Researchers Supporting Project No.(TURSP-2020/160),Taif University,Taif,Saudi Arabia.”。
文摘Current image steganography methods are working by assigning an image as a cover file then embed the payload within it by modifying its pixels,creating the stego image.However,the left traces that are caused by these modifications will make steganalysis algorithms easily detect the hidden payload.A coverless data hiding concept is proposed to solve this issue.Coverless does not mean that cover is not required,or the payload can be transmitted without a cover.Instead,the payload is embedded by cover generation or a secret message mapping between the cover file and the payload.In this paper,a new coverless image steganography method has been proposed based on the jigsaw puzzle image generation driven by a secret message.Firstly,the image is divided into equal rows then further divided into equal columns,creating blocks(i.e.,sub-images).Then,according to secret message bits and a proposed mapping function,each block will have tabs/blanks to get the shape of a puzzle piece creating a fully shaped jigsaw puzzle stego-image.After that,the generated jigsaw puzzle image is sent to the receiver.Experimental results and analysis show a good performance in the hiding capacity,security,and robustness compared with existing coverless image steganography methods.
文摘Benign prostatic hyperplasia(BPH)is a common condition affecting over 50% of men as they reach the 5th decade of their life[1].While over half of these patients have symptoms,it is not clear why some of these men do while others do not.The article Solving the benign prostatic hyperplasia puzzle by Keong Tatt Foo[2],delves into the different conundrums urologists face when trying to treat their patients.
基金National Natural Science Foundation of China,Grant/Award Numbers:52274261,52074109,52304284Natural Science Foundation of Henan Province,Grant/Award Number:222300420167+4 种基金Research Fund of Henan Key Laboratory of Coal Green Conversion,Grant/Award Number:CGCF202201Program for Science&Technology Innovation Talents in Universities of Henan Province,Grant/Award Number:21HASTIT008Key Scientific Research Project in Colleges and Universities of Henan Province,Grant/Award Numbers:22A430022,24A440003Scientific and Technological Project of Henan Province,Grant/Award Number:212102310564Natural Science Fund from Ningbo Municipal Bureau of Science and Technology,Grant/Award Number:2023J040。
文摘Two-dimensional porous carbon nanosheets(PCNSs)are considered promising anodes for lithium-ion batteries due to their synergetic features arising from both graphene and porous structures.Herein,using naturally abundant and biocompatible sodium humate(SH)as the precursor,PCNSs are prepared from the laboratory scale up to the kilogram scale by a method of a facile ice-templating-induced puzzle coupled with a carbonization strategy.Such obtained SH-derived PCNSs(SH-PCNSs)possess a hierarchical porous structure dominated by mesopores having a specific surface area(~127.192 g^(−1)),pore volume(~0.134 cm3 g^(−1)),sheet-like morphology(~2.18nm in thickness),and nitrogen/oxygen-containing functional groups.Owing to these merits,the SH-PCNSs present impressive Li-ion storage characteristics,including high reversible capacity(1011mAh g^(−1) at 0.1 A g^(−1)),excellent rate capability(465mAh g^(−1) at 5 A g^(−1)),and superior cycle stability(76.8%capacitance retention after 1000 cycles at 5 A g^(−1)).It is noted that the SH-PCNSs prepared from the kilogram-scale production procedure possess comparable electrochemical properties.Furthermore,coupling with a LiNi1/3Co1/3Mn1/3O2 cathode,the full cells deliver a high capacity of 167mAh g^(−1) at 0.2A g^(−1) and exhibit an outstanding energy density of 128.8Whkg^(−1),highlighting the practicability of this porous carbon nanosheets and the potential commercial opportunity of the scalable processing approach.
基金supported by the Earmarked Fund for Modern Agro-Industry Technology Research System,China(CARS-42-G24)the Agricultural Science and Technology Innovation Program,China(ASTIP-IAED-2015-01)+1 种基金the Project of Construction of Innovative Teams and Teacher Career Development for Universities and Colleges Under Beijing Municipality,China(IDHT20140510)the Project of Strategy of Ensuring China’s Animal Products Eatable Safety(13BGL098)
文摘From 1985, an increasing gap has emerged between the official statistical measures of meat production and meat consumption in China, which has raised concerns from many researchers using such data. In this paper we report the results of 428 observations（survey of 107 urban and rural households×4 quarters） from 7 provinces conducted in 2010, and compare them with the official statistical data from the National Bureau of Statistics of China（NBSC）. We conclude that the main reason for the discrepancy is due to the underreporting of consumption, which is due mainly to the omission of consumption away from home.
文摘Dear Editor,Obesity has nowadays become a global public health challenge due to its rapidly growing prevalence and interconnection with a wide spectrum of comorbidities.
基金Sponsorship of the National Social Science Foundation (NSSF) Youth Project (16CJL014)the China Postdoctoral Science Special Foundation (2017T100001)
文摘Based on China's industrial enterprises-customs matched data, this paper utilizes two-tier stochastic frontier analysis method to estimate and verify the extent to which selection effect and competition effect influence exporting firms' markup. Our findings suggest that the interaction between selection effect and competition effect ultimately causes actual firm markup to be higher than the baseline markup by 7.11%. Exporting firms' actual markup is higher than the baseline markup by different degrees. In terms of the decomposition of selection effect, TFP explains for 28.05% of selection effect, and nonproductivity factors explain for the rest 71.95%. By controlling for the type of firms' export,the export-productivity paradox only exists for processing trade firms, which shows that with increasing trade facilitation, the policy incentives to encourage firms to export are major contributors to the low export markups.
文摘We analyze the existing solar neutrino experiment data and show the allowed regions. The result from SNO's salt phase itself restricts quite a lot the allowed region's area. Reactor neutrinos play an important role in determining oscillation parameters. KamLAND gives decisive conclusion on the solution to the solar neutrino puzzle, in particular, the spectral distortion in the 766.3 Ty KamLAND data gives another new improvement in the constraint of solar MSW-LMA solutions. We confirm that at 99. 73% C.L. the high-LMA solution is excluded.
文摘There are diverse opinions about how to solve the Needham Puzzle. Such opinions or schools of thought can be roughly classified into three theories of a) geographical conditions, b) empirical trial and error, and c) private property rights. Although each school of thought makes sense, they all fail to fully uncover the main reason why, in modern history, China lagged behind western countries in the development of science and technology. In our opinion, the correct solution is to draw on historical experiences, integrate all schools of thought, proceed with an emphasis on the definition and protection of property rights, boost government investment in basic scientific research, strengthen government service functionality, actively develop NGOs, and open more widely to the outside world, with a view of pushing forward China's scientific and technological innovation and accelerating the pace of China's modernization.
基金supported by the National Natural Science Foundation of China(grant nos.32071238,82073477,and 82103773)Natural Science Project of Chengdu Medical College(grant nos.CYZZD20-01 and CYZ19-31)+3 种基金Science and Technology Project of Health Commission of Sichuan Province(grant no.21PJ158)Scientific Research Fund Project of China Baoyuan Investment Co.,Ltd.(grant no.CBYI202104)Nuclear Medical Science and Technology Innovation Project of China National Nuclear Corporation Medical Industry Management Co.,Ltd.(grant no.ZHYLTD2021002)Young Talent Project of China National Nuclear Corporation.
文摘Background:Reconstruction of large scalp defects after tumor resection is common and challenging.Free skin grafting or free flap transfer is always performed.However,these techniques can result in poor functional and cosmetic outcomes.Methods:In the Second Affiliated Hospital of Soochow University and the Second Affiliated Hospital of Chengdu Medical College,35 patients underwent jigsaw puzzle flap procedures based on a free-style perforator to repair large scalp defects after tumor resection from May 2013 to November 2022.The key to this procedure was to divide a large defect into several smaller parts that correspond to adjacent free-style perforators around the scalp defect.The free-style perforator flaps were designed in different ways,such as propeller flaps,rotation flaps,and V-Y advancement flaps,which were pedicled with free-style perforators.All of the small flaps were then mobilized to the defect and sutured to each other to create a new,large jigsaw puzzle-like flap to cover the large scalp defect.Finally,all the donor sites were closed directly.Results:Overall,35 patients were treated.The average defect size was 72 cm^(2)(range,25-91 cm^(2)).All flaps had a satisfactory appearance after follow-up periods of 6 months-10 years.Local tumor recurrence occurred in one case.Conclusion:The application of a jigsaw puzzle flap based on a free-style perforator is a suitable option for the reconstruction of large scalp defects after resection,yielding satisfactory functional and cosmetic results.
文摘Many independent films provide a realistic interpretation of everyday events. Passive viewing techniques used by independent scriptwriters and filmmakers require active engagement from the viewer in order to interpret characters and/or events. The following proposes that the ＂expositive puzzle＂ is an example of these techniques. It uses the fim Short Term 12 in order to demonstrate how the ＂expositive puzzle＂ works and to encourage use in real-world interactions in order to avoid interaction based on stereotypes.
文摘RompecPC is a computerized program designed to create and assemble jigsaw puzzles. The program automatically records the solver’s responses as the number of pieces positioned correctly, the number of correct and incorrect movements, the number of times that she/he attempts to move a piece to the same place (perseverations), and the latency and place to which each piece is moved or attempted to be moved. These features facilitate the implementation and evaluation of puzzles while also reducing human error. Therefore, RompePC is a useful tool for the neuropsychological assessment of visuospatial skills in both clinical and experimental research.
文摘The new parity value of π0 was determined according to the hypothesis of conservation of particle number. The theo-retical pentaquark proton’s parity value was also determined, and it was found that the conservation of parity is account nicely for the τ-θ puzzle.
文摘I wish to explore the idea that thought experiments are best accounted for as a special case of a narrative that features an interplay between puzzles and paradoxes. Furthermore, I believe the more successfully thought experiments manage to combine puzzles and paradoxes the more insightful and instructive they become. I suggest the latter kind of thought experiments also use the technique of mental variation.
