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Retractions of One Dimensional Manifold 被引量:2
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作者 A. E. El-Ahmady Nashwa Salem Awyd Al-Hazmi 《Applied Mathematics》 2012年第10期1135-1143,共9页
Our aim in the present article is to introduce and study types of retraction of one dimensional manifold. New types of geodesics in one dimensional manifold are presented. The deformation retracts of one dimensional m... Our aim in the present article is to introduce and study types of retraction of one dimensional manifold. New types of geodesics in one dimensional manifold are presented. The deformation retracts of one dimensional manifold into itself and onto geodesics is deduced. Also, the isometric and topological folding in each case and the relation between the deformations retracts after and before folding has been obtained. New types of conditional folding are described. 展开更多
关键词 retractions Deformation Retracts FOLDING One DIMENSIONAL MANIFOLD
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On Retractions of Lobachevsky Space
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作者 A. E. El-Ahmady K. Al-Onemi 《Applied Mathematics》 2013年第3期491-498,共8页
Our aim in the present article is to introduce and study new types of retractions of Lobachevsky space. Types of the deformation retracts of Lobachevsky space are presented. The relations between the folding and the d... Our aim in the present article is to introduce and study new types of retractions of Lobachevsky space. Types of the deformation retracts of Lobachevsky space are presented. The relations between the folding and the deformation retract of Lobachevsky space are deduced. Types of minimal retractions of Lobachevsky space are also presented. Also, the isometric and topological folding in each case and the relation between the deformation retracts after and before folding have been obtained. New types of homotopy maps are deduced. Theorems governing this connection are achieved. 展开更多
关键词 Lobachevsky SPACE LAGRANGIAN EQUATIONS retractions DEFORMATION retractions Foldings
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A Geometrical Characterization of Spatially Curved Roberstion-Walker Space and Its Retractions 被引量:2
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作者 Abd El-Aziz El-Ahmady El-Bagoury Asma Salem Al-Luhaybi 《Applied Mathematics》 2012年第10期1153-1160,共8页
Our aim in the present article is to introduce and study new types of retractions of closed flat Robertson-Walker W4 model. Types of the deformation retract of closed flat Robertson-Walker W4 model are obtained. The r... Our aim in the present article is to introduce and study new types of retractions of closed flat Robertson-Walker W4 model. Types of the deformation retract of closed flat Robertson-Walker W4 model are obtained. The relations between the retraction and the deformation retract of curves in W4 model are deduced. Types of minimal retractions of curves in W4 model are also presented. Also, the isometric and topological folding in each case and the relation between the deformation retracts after and before folding have been obtained. New types of homotopy maps are deduced. New types of conditional folding are presented. Some commutative diagrams are obtained. 展开更多
关键词 RETRACTION DEFORMATION Retracts Foldings FLAT Robertson-Walker Model
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The role of national research policy and publisher practices in shaping retraction dynamics:A case study of Romania
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作者 Vasile Cernat Jaime A.Teixeira da Silva 《Journal of Data and Information Science》 2025年第2期6-12,共7页
Purpose:This study examines the impact of research policy changes on scientific retractions of publications authored by Romanian authors,focusing on national trends and the interplay between policy reforms and publish... Purpose:This study examines the impact of research policy changes on scientific retractions of publications authored by Romanian authors,focusing on national trends and the interplay between policy reforms and publishing practices.Design/methodology/approach:Using data from the Retraction Watch Database and Web of Science(WoS),188 unique retractions involving Romanian authors(2000-2022)were analyzed.The study compared retraction patterns before and after the 2016 reforms,which prioritized the publication of articles in WoS-indexed journals over non-WoS outputs.Findings:The analysis identified two key trends:(1)before the 2016 reforms,retractions predominantly involved non-WoS journals(99 non-WoS retractions to 38 WoS retractions),a trend that reversed post-reform(16 non-WoS to 35 WoS),and(2)while the total number of WoS-indexed retractions increased after the reforms,the retraction rates for WoS articles remained stable.Post-reform reliance on MDPI journals,which have low retraction rates,partially explains this stability.Excluding MDPI publications,retraction rates for articles and reviews increase by 14.91%,aligning with patterns seen elsewhere.Research limitations:The study focuses on retractions involving Romanian authors,limiting its generalizability.Furthermore,reliance on database records may not fully capture all retractions.Practical implications:These findings underscore the need for research policy reforms to consider a broader range of effects,and the need for nuanced interpretations of retraction data,which are influenced by a complex range of factors,including specific publisher practices.Originality/value:This research is the first to investigate the complex relationship between research policy reforms,publisher behavior,and retraction trends. 展开更多
关键词 EU Integrity MISCONDUCT PUBLISHING Research Policy retractions
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我国能源类SCI期刊撤稿现状与对策
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作者 付凌霄 芮雪 +1 位作者 刘瑞芹 李晓晴 《科技传播》 2025年第11期40-44,共5页
以能源类SCI期刊为研究对象,系统分析2019—2023年期间的撤稿现状,重点探讨撤稿率与期刊影响因子、审稿周期及开放获取政策的相关性。研究结果显示:撤稿主要原因集中于数据问题(21.4%)、图像问题(20.6%)及抄袭(19.8%),且实验密集型领域... 以能源类SCI期刊为研究对象,系统分析2019—2023年期间的撤稿现状,重点探讨撤稿率与期刊影响因子、审稿周期及开放获取政策的相关性。研究结果显示:撤稿主要原因集中于数据问题(21.4%)、图像问题(20.6%)及抄袭(19.8%),且实验密集型领域(如润滑与摩擦学、纳米材料、电池技术)撤稿问题尤为突出;研究论文撤稿数量(121篇)远超综述论文(5篇),前者以数据/图像问题为主,后者主要是抄袭;撤稿时滞超过1年的期刊占比过半,开放获取论文撤稿率(23.8%)显著低于非开放获取论文(76.2%);撤稿率与期刊影响因子呈显著负相关(Spearman ρ=-0.374,p<0.05),而与审稿周期无显著关联。基于此,建议能源领域期刊从四个方面优化治理:强化实验数据透明性与可追溯性,推行开放获取以增强监督效能,构建“预防-发现-惩戒”全链条学术诚信机制,实施分类型审稿策略(如研究论文数据双盲审、综述论文AI查重)。 展开更多
关键词 能源类SCI期刊 撤稿 Retraction Watch数据库 学术诚信
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Retraction:Inhibition of Proliferation,Migration,and Invasion by Knockdown of Pyruvate Kinase-M2(PKM2)in Ovarian Cancer SKOV3 and OVCAR3 Cells
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作者 Oncology Research Editorial Office 《Oncology Research》 2025年第7期1801-1801,共1页
Following the publication,concerns have been raised about a number of figures in this article.The western blots in this article were presented with atypical,unusually shaped and possibly anomalous protein bands in man... Following the publication,concerns have been raised about a number of figures in this article.The western blots in this article were presented with atypical,unusually shaped and possibly anomalous protein bands in many cases. 展开更多
关键词 western blots protein bands RETRACTION ovarian cancer MIGRATION INVASION SKOV PROLIFERATION
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Retraction: MYBL2 is targeted by miR-143-3p and regulates breast cancer cell proliferation and apoptosis
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作者 Oncology Research Editorial Office 《Oncology Research》 2025年第3期739-739,共1页
Following the publication,concerns have been raised about a number of figures in this article.An unexpected area of similarity was identified in terms of the cellular data,where the results from differently performed ... Following the publication,concerns have been raised about a number of figures in this article.An unexpected area of similarity was identified in terms of the cellular data,where the results from differently performed experiments were intended to have been shown,although the areas immediately surrounding this area featured comparatively different distributions of cells.In addition,the western blots in this article were presented with atypical,unusually shaped and possibly anomalous protein bands in many cases. 展开更多
关键词 western blots cellular datawhere protein bands performed experiments RETRACTION cellular data
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Retraction: UCA1 Regulates the Growth and Metastasis of Pancreatic Cancer by Sponging miR-135a
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作者 Oncology Research Editorial Office 《Oncology Research》 2025年第9期2596-2596,共1页
The published article titled“UCA1 Regulates the Growth and Metastasis of Pancreatic Cancer by Sponging miR-135a”has been retracted from Oncology Research,Vol.25,No.9,2017,pp.1529–1541.DOI:10.3727/096504017X14888987... The published article titled“UCA1 Regulates the Growth and Metastasis of Pancreatic Cancer by Sponging miR-135a”has been retracted from Oncology Research,Vol.25,No.9,2017,pp.1529–1541.DOI:10.3727/096504017X14888987683152 URL:https://www.techscience.com/or/v25n9/56938 Following the publication,concerns have been raised about a number of figures in this article.An unexpected area of similarity was identified in terms of the cellular data,where the results from differently performed experiments were intended to have been shown,although the areas immediately surrounding this area featured comparatively different distributions of cells. 展开更多
关键词 cellular datawhere pancreatic cancer cellular data similarity UCA MIR RETRACTION
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Advancements in liver retraction techniques for laparoscopic gastrectomy
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作者 Andrew Daley Ewen A Griffiths 《World Journal of Gastrointestinal Surgery》 2025年第1期20-24,共5页
Traditionally,liver retraction for laparoscopic gastrectomy is done via manual methods,such as the placement of retractors through the accessory ports and using a Nathanson retractor.However,these techniques often pos... Traditionally,liver retraction for laparoscopic gastrectomy is done via manual methods,such as the placement of retractors through the accessory ports and using a Nathanson retractor.However,these techniques often posed issues including extra abdominal incisions,risk of liver injury or ischaemia,and the potential for compromised visualization.Over the years,the development of innovative liver retraction techniques has significantly improved the safety and efficacy of laparoscopic gastrectomy and similar other hiatal procedures.This editorial will comment on the article by Lin et al,and compare this to the other liver retractor techniques available for surgeons and highlight the pros and cons of each technique of liver retraction. 展开更多
关键词 Liver retraction Laparoscopic surgery Bariatric surgery GASTRECTOMY Retractor-related liver injury
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Clinical profiles of thyroid eye disease with and without strabismus:a comparative study
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作者 Masoud Khorrami-Nejad Mohammad Reza Akbari +4 位作者 Elham Azizi Safaa Dehyaa Saad Ali Majdi Kimia Daneshvar Seyed Mohsen Rafizadeh 《International Journal of Ophthalmology(English edition)》 2025年第12期2366-2371,共6页
AIM:To identify differences in clinical features between thyroid eye disease(TED)patients with and without strabismus.METHODS:This retrospective,single-center,consecutive case series study was conducted on TED patient... AIM:To identify differences in clinical features between thyroid eye disease(TED)patients with and without strabismus.METHODS:This retrospective,single-center,consecutive case series study was conducted on TED patients who were determined to be surgical candidates.The patients’cohort were divided into two groups based on the presence or absence of strabismus.Demographics and complete eye examinations were recorded and compared between the TED and TED with strabismus groups.RESULTS:A total of 76 patients with TED were enrolled,including 58 males(76.3%)with a mean age of 52.68±10.45y.The 55 patients(male:female=2:1)were found to have TED with strabismus,while the remaining 21 patients(male:female=4:1)had TED without strabismus.There was nearly a four times greater likelihood of lid retraction being associated with TED without strabismus(OR=4.1,P=0.018)and they showed higher prevalence of proptosis(95.2%)than the TED strabismus group(63.6%,P<0.001).In the TED-strabismus group,20%of patients had abnormal head posture(AHP),while none were identified in the TED group(P=0.029).Despite the higher incidence of vision-threatening complications such as dysthyroid optic neuropathy(19%vs 8.1%)and exposure keratopathy(4.8%vs 1.8%)in the TED group than in the TED-strabismus group,the difference did not reach statistical significance(P>0.05).The most common types of strabismus were hypotropia(36%)and esotropia(29%),respectively.CONCLUSION:Strabismus-associated TED is characterized by a lower prevalence of proptosis and lid retraction,but a higher incidence of compensatory AHP.Identifying these differences may aid in risk stratification and early intervention for TED patients,particularly those at risk for restrictive strabismus. 展开更多
关键词 thyroid eye disease STRABISMUS PROPTOSIS lid retraction
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Retraction: Inhibition of Liver Carcinoma Cell Invasion and Metastasis by Knockdown of Cullin7 In Vitro and In Vivo
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作者 Oncology Research Editorial Office 《Oncology Research》 2025年第8期2179-2179,共1页
Published:18 July 2025 The published article titled“Inhibition of Liver Carcinoma Cell Invasion and Metastasis by Knockdown of Cullin7 In Vitro and In Vivo”has been retracted from Oncology Research,Vol.23,No.4,2015,... Published:18 July 2025 The published article titled“Inhibition of Liver Carcinoma Cell Invasion and Metastasis by Knockdown of Cullin7 In Vitro and In Vivo”has been retracted from Oncology Research,Vol.23,No.4,2015,pp.171–181.DOI:10.3727/096504016X14519995067562 URL:https://www.techscience.com/or/v23n4/57554 Following the publication,concerns have been raised about a number of figures in this article.An unexpected area of similarity was identified in terms of the cellular data,where the results from differently performed experiments were intended to have been shown,although the areas immediately surrounding this area featured comparatively different distributions of cells.In addition,the western blots in this article were presented with atypical,unusually shaped and possibly anomalous protein bands in many cases. 展开更多
关键词 cellular datawhere liver carcinoma cell cell invasion CULLIN liver carcinoma knockdown cullin metastasis RETRACTION
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Retraction:miR-135a confers resistance to gefitinib in non-small cell lung cancer cells by upregulation of RAC1
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作者 Oncology Research Editorial Office 《Oncology Research》 2025年第3期733-733,共1页
Following the publication,concerns have been raised about a number of figures in this article.The western blots in this article were presented with atypical,unusually shaped and possibly anomalous protein bands in man... Following the publication,concerns have been raised about a number of figures in this article.The western blots in this article were presented with atypical,unusually shaped and possibly anomalous protein bands in many cases. 展开更多
关键词 non small cell lung cancer western blots protein bands RETRACTION GEFITINIB MIR
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Retraction:MicroRNA-221-3p Plays an Oncogenic Role in Gastric Carcinoma by Inhibiting PTEN Expression
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作者 Oncology Research Editorial Office 《Oncology Research》 2025年第9期2598-2598,共1页
The published article titled“MicroRNA-221-3p Plays an Oncogenic Role in Gastric Carcinoma by Inhibiting PTEN Expression”has been retracted from Oncology Research,Vol.25,No.4,2017,pp.523–536.DOI:10.3727/096504016X14... The published article titled“MicroRNA-221-3p Plays an Oncogenic Role in Gastric Carcinoma by Inhibiting PTEN Expression”has been retracted from Oncology Research,Vol.25,No.4,2017,pp.523–536.DOI:10.3727/096504016X14756282819385 URL:https://www.techscience.com/or/v25n4/56833 Following the publication,concerns have been raised about a number of figures in this article.An unexpected area of similarity was identified in terms of the cellular data,where the results from differently performed experiments were intended to have been shown,although the areas immediately surrounding this area featured comparatively different distributions of cells.In addition,the western blots in this article were presented with atypical,unusually shaped and possibly anomalous protein bands in many cases. 展开更多
关键词 cellular datawhere microrna p PTEN western blots inhibiting pten expression gastric carcinoma cellular data RETRACTION
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RETRACTION:Challenges and Opportunities of Big Data Analytics in Healthcare
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《Health Care Science》 2025年第2期161-161,共1页
RETRACTION:P.Goyal and R.Malviya,“Challenges and Opportunities of Big Data Analytics in Healthcare,”Health Care Science 2,no.5(2023):328-338,https://doi.org/10.1002/hcs2.66.The above article,published online on 4 Oc... RETRACTION:P.Goyal and R.Malviya,“Challenges and Opportunities of Big Data Analytics in Healthcare,”Health Care Science 2,no.5(2023):328-338,https://doi.org/10.1002/hcs2.66.The above article,published online on 4 October 2023 in Wiley Online Library(wileyonlinelibrary.com),has been retracted by agreement between the journal Editor-in-Chief,Zongjiu Zhang;Tsinghua University Press;and John Wiley&Sons Ltd. 展开更多
关键词 big data analytics RETRACTION healthcare
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Two-point lifting/retracting technology for transumbilical single-port laparoscopic cholecystectomy based on the anatomical features of Calot's triangle
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作者 Li-Min Kang Ying-Hong Zhao +2 位作者 Fa-Kun Yu Fu-Wei Zhang Xin Kang 《World Journal of Gastrointestinal Surgery》 2025年第7期165-171,共7页
BACKGROUND Among the rapidly developing single-incision laparoscopic cholecystectomy(LC)techniques,transumbilical single-incision LC is increasingly replacing the traditional LC,with advantages of minimal invasion,sli... BACKGROUND Among the rapidly developing single-incision laparoscopic cholecystectomy(LC)techniques,transumbilical single-incision LC is increasingly replacing the traditional LC,with advantages of minimal invasion,slight postoperative pain,faster recovery.Despite the advantages mentioned above,the currently available specialized single-port laparoscopic instruments are hindered by high costs and limited applications,challenging their widespread use in medical facilities.AIM To design a two-point lifting/retracting(TPLR)technique for transumbilical single-port LC(TUSPLC)based on the anatomical features of the Calot's triangle(or cystohepatic triangle)and investigate its surgical feasibility.METHODS The clinical data of 103 patients who underwent TUSPLC utilizing the TPLR technique in the Department of Hepatobiliary Surgery at our hospital between June 2023 and June 2024 were retrospectively analyzed.The patient cohort included 82 cases of cholelithiasis,11 cases of gallbladder polyps,6 cases of concurrent gallstones and polyps,and 4 cases of gallbladder adenomyomatosis.RESULTS All the surgical procedures were conducted using standard laparoscopic instruments.Surgery was successful in 98(95.14%)patients using the TPLR method,which effectively exposed the Calot's triangle during surgery.The operative time ranged from 35 to 70 minutes,with an average of 42.4±26.8 minutes.In 3 cases,an additional operative port was required below the xiphoid process,and 2 cases were converted to conventional three-port LC.No complications such as abdominal pain,fever,bile leakage,hemorrhage,or incisional infection were noted postoperatively.No discernible surgical scars were observed at the 2-week postoperative reexamination.Additionally,a 3-month follow-up period revealed no complications.CONCLUSION The TPLR technique,developed based on the anatomical features of the Calot's triangle,facilitates exposure of the Calot's triangle during surgery.It is a simple,safe,feasible,and cost-effective method,and a promising approach for single-port LC. 展开更多
关键词 Calot's triangle Two-point lifting/retracting technique Transumbilical single-port surgery LAPAROSCOPY CHOLECYSTECTOMY
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Retraction:Knockdown of Rap1b Enhances Apoptosis and Autophagy in Gastric Cancer Cells via the PI3K/Akt/mTOR Pathway
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作者 Oncology Research Editorial Office 《Oncology Research》 2025年第8期2177-2177,共1页
The published article titled“Knockdown of Rap1b Enhances Apoptosis and Autophagy in Gastric Cancer Cells via the PI3K/Akt/mTOR Pathway”has been retracted from Oncology Research,Vol.24,No.5,2016,pp.287–293.DOI:10.37... The published article titled“Knockdown of Rap1b Enhances Apoptosis and Autophagy in Gastric Cancer Cells via the PI3K/Akt/mTOR Pathway”has been retracted from Oncology Research,Vol.24,No.5,2016,pp.287–293.DOI:10.3727/096504016X14648701447779 URL:https://www.techscience.com/or/v24n5/56977 Following the publication,concerns have been raised about a number of figures in this article.An unexpected area of similarity was identified in terms of the cellular data,where the results from differently performed experiments were intended to have been shown,although the areas immediately surrounding this area featured comparatively different distributions of cells.In addition,the western blots in this article were presented with atypical,unusually shaped and possibly anomalous protein bands in many cases. 展开更多
关键词 gastric cancer cells cellular datawhere western blots AUTOPHAGY RETRACTION rap b APOPTOSIS pi k akt mtor pathway
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Retraction:miR-144-3p targets FosB proto-oncogene,AP-1 transcription factor subunit(FOSB)to suppress proliferation,migration,and invasion of PANC-1 pancreatic cancer cells
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作者 Oncology Research Editorial Office 《Oncology Research》 2025年第3期735-735,共1页
Following the publication,concerns have been raised about a number of figures in this article.An unexpected area of similarity was identified in terms of the cellular data,where the results from differently performed ... Following the publication,concerns have been raised about a number of figures in this article.An unexpected area of similarity was identified in terms of the cellular data,where the results from differently performed experiments were intended to have been shown,although the areas immediately surrounding this area featured comparatively different distributions of cells. 展开更多
关键词 cellular datawhere RETRACTION panc pancreatic cancer cells cellular data fosb proto oncogene mir p experiments ap transcription factor
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Retraction note to:Shugan Jieyu capsule effects on peripheral blood micro-124,micro-132,and brain-derived neurotrophic factor in patients with mild to moderate depression
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作者 Xian Zhang Yang Liu +6 位作者 Hua-Fei Tang Feng Jiang Chun-Liang Chen Ting-Ting Wang Hui-Zhong Gu QiangZhao Rui Ma 《World Journal of Psychiatry》 2025年第2期283-284,共2页
In this retraction note,we have decided to retract an article published in World Journal of Psychiatry due to disagreement among the authors.
关键词 World Journal of Psychiatry Retraction note
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Retraction note:Predictive value of machine learning models for lymph node metastasis in gastric cancer:A two-center study
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作者 Jia-Ping Yan Jin-Lei Wang 《World Journal of Gastrointestinal Surgery》 2025年第1期317-323,共7页
In this retraction note,we describe the World Journal of Gastrointestinal Surgery(WJGS)Editorial Office’s decision and reason for retracting an article published in WJGS,volume 16,issue 1.
关键词 World Journal of Gastrointestinal Surgery Retraction note
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Retraction note:Efficacy and safety analysis of transarterial chemoembolization and transarterial radioembolization in advanced hepatocellular carcinoma descending hepatectomy
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作者 Rui Feng De-Xin Cheng +2 位作者 Tao Song Long Chen Kai-Ping Lu 《World Journal of Gastrointestinal Surgery》 2025年第5期422-424,共3页
The retraction note addresses allegations concerning the published article titled“Efficacy and safety analysis of transarterial chemoembolization and transarterial radioembolization in advanced hepatocellular carcino... The retraction note addresses allegations concerning the published article titled“Efficacy and safety analysis of transarterial chemoembolization and transarterial radioembolization in advanced hepatocellular carcinoma descending hepatec-tomy”.World J Gastrointest Surg 2023;15:687-697.To preserve academic integrity and avoid misleading the readers,the authors agreed to retract the article,due to significant concerns regarding the reliability of the transarterial radioembolization data obtained by exploratory,non-standardized interventional procedures and ethical compliance in this study,which severely damaged the conclusion in this study.The authors sincerely apologize to the readers,reviewers and editors for these errors and for any inconvenience caused by this retraction. 展开更多
关键词 World Journal of Gastrointestinal Surgery Retraction note
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