Special Knowledge in Criminal Procedure： Essence, Borders, and Role

This article presents attempts to make a comprehensive study of＂special knowledge＂ and to determine its role in the criminal process and criminology nowadays. The concept of special knowledge and its borders, especially the use of its various forms are analyzed. The author considers some controversial provisions in the demarcation of expertise special knowledge from other knowledge （including legal）, and establishes their relationship. The provision for the need to establish certain ＂unification＂ in the use of specialized knowledge, as well as in the appointment and conducting forensic examinations, inviting experts, obtaining advice is made. This also applies to the aspirations of uniform methods, expertise techniques and technology in the application of special knowledge. The use of examination in criminal justice in Ukraine is analyzed and some of the changes associated with the adoption of the new Criminal Procedure Code are considered. The changes in procedures are associated with the desire to transform the traditional regulations and to move to the adversarial criminal process. The necessity of equal procedural opportunities in the use of special knowledge by the prosecution and the defense is argued.

基于S-Procedure的分段线性Delta算子系统的稳定性分析

本文研究了一类由Delta算子描述的分段线性系统的二次稳定性问题。基于Delta域的Lyapunov稳定性理论,利用S-procedure构造了分段Lyapunov函数,而且将分段线性Delta算子系统的二次稳定性判定问题转化为一组线性矩阵不等式的求解问题。

Single center experience in selecting the laparoscopic Frey procedure for chronic pancreatitis

AIM: To share our experience regarding the laparoscopic Frey procedure for chronic pancreatitis(CP) and patient selection.METHODS: All consecutive patients undergoingduodenum-preserving pancreatic head resection from July 2013 to July 2014 were reviewed and those undergoing the Frey procedure for CP were included in this study. Data on age, gender, body mass index(BMI), American Society of Anesthesiologists score, imaging findings, inflammatory index(white blood cells, interleukin(IL)-6, and C-reaction protein), visual analogue score score during hospitalization and outpatient visit, history of CP, operative time, estimated blood loss, and postoperative data(postoperative mortality and morbidity, postoperative length of hospital stay) were obtained for patients undergoing laparoscopic surgery. The open surgery cases in this study were analyzed for risk factors related to extensive bleeding, which was the major reason for conversion during the laparoscopic procedure. Age, gender, etiology, imaging findings, amylase level, complications due to pancreatitis, functional insufficiency, and history of CP were assessed in these patients.RESULTS: Nine laparoscopic and 37 open Frey procedures were analyzed. Of the 46 patients, 39 were male(85%) and seven were female(16%). The etiology of CP was alcohol in 32 patients(70%) and idiopathic in 14 patients(30%). Stones were found in 38 patients(83%). An inflammatory mass was found in five patients(11%). The time from diagnosis of CP to the Frey procedure was 39 ± 19(9-85) mo. The BMI of patients in the laparoscopic group was 20.4 ± 1.7(17.8-22.4) kg/m2 and was 20.6 ± 2.9(15.4-27.7) kg/m2 in the opengroup. Allpatientsrequired analgesic medication for abdominal pain. Frequent acute pancreatitis or severe abdominal pain due to acute exacerbation occurred in 20 patients(43%). Pre-operative complications due to pancreatitis were observed in 18 patients(39%). Pancreatic functional insufficiency was observed in 14 patients(30%). Two laparoscopic patients(2/9) were converted. In seven successful laparoscopic cases, the mean operative time was 323 ± 29(290-370) min. Estimated intra-operativeblood loss was 57 ± 14(40-80) m L. One patient had a postoperative complication, and no mortality was observed. Postoperative hospital stay was 7 ± 2(5-11) d. Multiple linear regression analysis of 37 open Frey procedures showed that an inflammatory mass(P < 0.001) and acute exacerbation(P < 0.001) were risk factors for intra-operative blood loss. CONCLUSION: The laparoscopic Frey procedure for CP is feasible but only suitable in carefully selected patients.

What operation for recurrent rectal prolapse after previous Delorme's procedure? A practical reality

AIM: To report our experience with perineal repair(Delorme's procedure) of rectal prolapse with particular focus on treatment of the recurrence.METHODS: Clinical records of 40 patients who underwent Delorme's procedure between 2003 and 2014 were reviewed to obtain the following data: Gender; duration of symptoms, length of prolapse, operation time, ASA grade, length of post-operative stay, procedure-related complications, development and treatment of recurrent prolapse. Analysis of post-operative complications, rate and time of recurrence and factors influencing the choice of the procedure for recurrent disease was conducted. Continuous variables were expressed as the median with interquartile range(IQR). Statistical analysis was carried out using the Fisher exact test.RESULTS: Median age at the time of surgery was 76 years(IQR: 71-81.5) and there were 38 females and 2 males. The median duration of symptoms was 6 mo(IQR: 3.5-12) and majority of patients presented electively whereas four patients presented in the emergency department with irreducible rectal prolapse. The median length of prolapse was 5 cm(IQR: 5-7), median operative time was 100 min(IQR: 85-120) and median post-operative stay was 4 d(IQR: 3-6). Approximately16% of the patients suffered minor complications such as- urinary retention, delayed defaecation and infected haematoma. One patient died constituting postoperative mortality of 2.5%. Median follow-up was 6.5 mo(IQR: 2.15-16). Overall recurrence rate was 28%(n = 12). Recurrence rate for patients undergoing an urgent Delorme's procedure who presented as an emergency was higher(75.0%) compared to those treated electively(20.5%), P value 0.034. Median time interval from surgery to the development of recurrence was 16 mo(IQR: 5-30). There were three patients who developed an early recurrence, within two weeks of the initial procedure. The management of the recurrent prolapse was as follows: No further intervention(n = 1), repeat Delorme's procedure(n = 3), Altemeier's procedure(n = 5) and rectopexy with faecal diversion(n = 3). One patient was lost during follow up.CONCLUSION: Delorme's procedure is a suitable treatment for rectal prolapse due to low morbidity and mortality and acceptable rate of recurrence. The management of the recurrent rectal prolapse is often restricted to the pelvic approach by the same patientrelated factors that influenced the choice of the initial operation, i.e., Delorme's procedure. Early recurrence developing within days or weeks often represents a technical failure and may require abdominal rectopexy with faecal diversion.

Primary colon resection or Hartmann's procedure in malignant left-sided large bowel obstruction? The use of stents as a bridge to surgery

There is still significant debate regarding the best surgical treatment for malignant left-sided large bowel obstruction.Primary resection and anastomosis offers the advantages of a definite procedure without need for further surgery.Its main disadvantages are related to the increased technical challenge and to the potential higher risk of anastomotic leakage that occurs in the emergency setting.Primary resection with end colostomy(Hartmann's procedure) is considered the safer option.Tan et al compared in a systematic review and meta-analysis the use of self-expanding metallic stents(SEMS) as a bridge to surgery vs emergency surgery in the management of acute malignant left-sided large bowel obstruction.The authors concluded that the technical and clinical success rates for stenting were lower than expected.SEMS was associated with a high incidence of clinical and silent perforation.Stenting instead of loop colostomy can be recommended only if the appropriate expertise is available in the hospital.The goal of stenting,a decrease of the stoma rate,may be advocated only if the complication rates of stenting are lower than those of stoma creation in the emergency situation.Until now,this was not demonstrated in a prospective randomized trial.

Khubchandani's procedure combined with stapled posterior rectal wall resection for rectocele

BACKGROUND Obstructed defecation syndrome(ODS) is a widespread disease in the world.Rectocele is the most common cause of ODS in females. Multiple procedures have been performed to treat rectocele and no procedure has been accepted as the gold-standard procedure. Stapled transanal rectal resection(STARR) has been widely used. However, there are still some disadvantages in this procedure and its effectiveness in anterior wall repair is doubtful. Therefore, new procedures are expected to further improve the treatment of rectocele.AIM To evaluate the efficacy and safety of a novel rectocele repair combining Khubchandani's procedure with stapled posterior rectal wall resection.METHODS A cohort of 93 patients were recruited in our randomized clinical trial and were divided into two different groups in a randomized manner. Forty-two patients(group A) underwent Khubchandani's procedure with stapled posterior rectal wall resection and 51 patients(group B) underwent the STARR procedure.Follow-up was performed at 1, 3, 6, and 12 mo after the operation. Preoperative and postoperative ODS scores and depth of rectocele, postoperative complications, blood loss, and hospital stay of each patient were documented. All data were analyzed statistically to evaluate the efficiency and safety of our procedure.RESULTS In group A, 42 patients underwent Khubchandani's procedure with stapled posterior rectal wall resection and 34 were followed until the final analysis. In group B, 51 patients underwent the STARR procedure and 37 were followed until the final analysis. Mean operative duration was 41.47 ± 6.43 min(group A) vs39.24 ± 6.53 min(group B). Mean hospital stay was 3.15 ± 0.70 d(group A) vs 3.14± 0.54 d(group B). Mean blood loss was 10.91 ± 2.52 mL(group A) vs 10.14 ± 1.86 m L(group B). Mean ODS score in group A declined from 16.50 ± 2.06 before operation to 5.06 ± 1.07 one year after the operation, whereas in group B it was17.11 ± 2.57 before operation and 6.03 ± 2.63 one year after the operation. Mean depth of rectocele decreased from 4.32 ± 0.96 cm(group A) vs 4.18 ± 0.95 cm(group B) preoperatively to 1.19 ± 0.43 cm(group A) vs 1.54 ± 0.82 cm(group B)one year after operation. No other serious complications, such as rectovaginal fistula, perianal sepsis, or deaths, were recorded. After 12 mo of follow-up, 30 patients'(30/34, 88.2%) final outcomes were judged as effective and 4(4/34,11.8%) as moderate in group A, whereas in group B, 30(30/37, 81.1%) patients' outcomes were judged as effective, 5(5/37, 13.5%) as moderate, and 2(2/37,5.4%) as poor.CONCLUSION Khubchandani's procedure combined with stapled posterior rectal wall resection is an effective, feasible, and safe procedure with minor trauma to rectocele.

Isolated Pancreatic Tuberculosis in Non-immunocompromised Patient Treated by Whipple's Procedure:a Case Report

PANCREATIC tuberculosis(TB)is a rare disease and its diagnosis is difficult because of the lack of specific clinical manifestations.Computed tomography(CT)and magnetic resonance imaging(MRI)have some diagnostic values in this disease,but it is easy to misdiagnose pancreatic TB as a pancreatic tumor.1 In this article,we present a case of non-immunocompromised patient developing an isolated pancreatic TB,report the CT and MRI findings,and the surgical procedure for it.

Role of original and modified Frey's procedures in chronic pancreatitis

AIM To retrospectively review patients with chronic pancreatitis(CP) treated with Frey's procedures between January 2009 and January 2014.METHODS A retrospective review was performed of patients with CP treated with Frey's procedures between January 2009 and January 2014 in the Department of Pancreatic Surgery. A cross-sectional study of postoperative pain relief, quality of life(Qo L), and alcohol and nicotine abuse was performed by clinical interview, letters and telephone interview in January 2016. Qo L of patients was evaluated with the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire(EORTC QLQ-C30) version 3.0. The patients were requested to fill in the questionnaires by themselves via correspondence or clinical interview.RESULTS A total of 80 patients were enrolled for analysis, including 44 who underwent the original Frey's procedure and 36 who underwent a modified Frey's procedure. The mean age was 46 years in the original group and 48 years in the modified group. Thirtyfive male patients(80%) were in the original group and 33(92%) in the modified group. There were no differences in the operating time, blood loss, and postoperative morbidity and mortality between the two groups. The mean follow-up was 50.3 mo in the original group and 48.7 mo in the modified group. There were no differences in endocrine and exocrine function preservation between the two groups. The original Frey's procedure resulted in significantly betterpain relief, as shown by 5-year follow-up(P = 0.032), better emotional status(P = 0.047) and fewer fatigue symptoms(P = 0.028). When stratifying these patients by the M-ANNHEIM severity index, no impact was found on pain relief after the two types of surgery.CONCLUSION The original Frey's procedure is as safe as the modified procedure, but the former yields better pain relief. The severity of CP does not affect postoperative pain relief.

Special Relativity’s “Newtonization” in Complex “Para-Space”: The Two Theories Equivalence Question

Complex model, say C3, of “para-space” as alternative to the real M4 Minkowski space-time for both relativistic and classical mechanics was shortly introduced as reference to our previous works on that subject. The actual aim, however, is an additional analysis of the physical and para-physical phenomena’ behavior as we formally transport observable mechanical phenomena [motion] to non-real interior of the complex domain. As it turns out, such procedure, when properly set, corresponds to transition from relativistic to more classic (or, possibly, just classic) kind of the motion. This procedure, we call the “Newtonization of relativistic physical quantities and phenomena”, first of all, includes the mechanical motion’s characteristics in the C3. The algebraic structure of vector spaces was imposed and analyzed on both: the set of all relativistic velocities and on the set of the corresponding to them “Galilean” velocities. The key point of the analysis is realization that, as a matter of fact, the relativistic theory and the classical are equivalent at least as for the kinematics. This conclusion follows the fact that the two defined structures of topological vector spaces i.e., the structure imposed on sets of all relativistic velocities and the structure on set of all “Galilean” velocities, are both diffeomorphic in their topological parts and are isomorphic as the vector spaces. As for the relativistic theory, the two approaches: the hyperbolic (“classical” SR) with its four-vector formalism and Euclidean, where SR is modeled by the complex para-space C3, were analyzed and compared.

Strangulated ileal trans-coloanal-anastomotic hernia:A complication of Altemeier's procedure previously never reported

A postoperative complication after Altemeier operation, so far never reported,is described in a 42 years old mentally disabled patient with external full thickness rectal prolapse who usually had prolonged straining at defecation.After 6 d from perineal rectosigmoidectomy, the patient,was discharged free of complications.Four days later he was readmitted in emergency for stran-gulated perineal trans-anastomotic ileal hernia that occurred at home during efforts to defecate.The clinical feature required an emergency operation for repositioning the ileal loops into the abdomen,resection of the necrotic ileum,and end colostomy.The outcome of the second operation was free of complication and the patient was discharged on the 6th postoperative day.In conclusion,after Altemeier operation prolonged straining at defecation should be carefully

Comparison between open and laparoscopic reversal of Hartmann’s procedure for diverticulitis

AIM: To compare the open and laparoscopic Hartmann’s reversal in patients first treated for complicated diverticulitis.METHODS: Forty-six consecutive patients with diverticular disease were included in this retrospective,singlecenter study of a prospectively maintained colorectal surgery database.All patients underwent conventional Hartmann’s procedures for acute complicated diverticulitis.Other indications for Hartmann’s procedures were excluded.Patients underwent open(OHR) or laparoscopic Hartmann’s reversal(LHR) between 2000 and 2010,and received the same pre-and post-operative protocols of cares.Operative variables,length of stay,short-(at 1 mo) and long-term(at 1 and 3 years) postoperative complications,and surgery-related costs were compared between groups.RESULTS: The OHR group consisted of 18 patients(13 males,mean age ± SD,61.4 ± 12.8 years),and the LHR group comprised 28 patients(16 males,mean age 54.9 ± 14.4 years).The mean operative time and the estimated blood loss were higher in the OHR group(235.8 ± 43.6 min vs 171.1 ± 27.4 min;and 301.1 ± 54.6 mL vs 225 ± 38.6 mL respectively,P = 0.001).Bowel function returned in an average of 4.3 ± 1.7 d in the OHR group,and 3 ± 1.3 d in the LHR group(P = 0.01).The length of hospital stay was significantly longer in the OHR group(11.2 ± 5.3 d vs 6.7 ± 1.9 d,P 【 0.001).The 1 mo complication rate was 33.3% in the OHR(6 wound infections) and 3.6% in the LHR group(1 hemorrhage)(P = 0.004).At 12 mo,the complication rate remained significantly higher in the OHR group(27.8% vs 10.7%,P = 0.03).The anastomotic leak and mortality rates were nil.At 3 years,no patient required re-intervention for surgical complications.The OHR procedure had significantly higher costs(+56%) compared to the LHR procedure,when combining the surgery-related costs and the length of hospital stay.CONCLUSION: LHR appears to be a safe and feasible procedure that is associated with reduced hospitality stays,complication rates,and costs compared to OHR.

Single institution experience with the Ladd's procedure in patients with heterotaxy and stage Ⅰ palliated single-ventricle

AIM:To investigate and describe our current institutional management protocol for single-ventricle patients who must undergo a Ladd's procedure.METHODS:We retrospectively reviewed the charts of all patients from January 2005 to March 2014 who were diagnosed with heterotaxy syndrome and an associated intestinal rotation anomaly who carried a cardiac diagnosis of functional single ventricle and were status post stage I palliation.A total of 8 patients with a history of stage I single-ventricle palliation underwent Ladd's procedure during this time period.We reviewed each patients chart to determine if significant intraoperative or post-operative morbidity or mortality occurred.We also described our protocolized management of these patients in the cardiac intensive care unit,which included pre-operative labs,echocardiography,milrinone infusion,as well as protocolized fluid administration and anticoagulation regimines.We also reviewed the literature to determine the reported morbidity and mortality associated with the Ladd's procedure in this particular cardiac physiology and if other institutions have reported protocolized care of these patients.RESULTS:A total of 8 patients were identified to have heterotaxy with an intestinal rotation anomaly and single-ventricle heart disease that was status post single ventricle palliation.Six of these patients were palliated with a Blaylock-Taussig shunt,one of whom underwent a Norwood procedure.The two other patients were palliated with a stent,which was placed in the ductus arteriosus.These eight patients all underwent elective Ladd's procedure at the time of gastrostomy tube placement.Per our protocol,all patients remained on aspirin prior to surgery and had no period where they were without anticoagulation.All patients remained on milrinone during and after the procedure and received fluid administration upon arrival to the cardiac intensive care unit to account for losses.All 8 patients experienced no intraoperative or post-operative complications.All patients survived to discharge.One patient presented to the emergency room two months after discharge in cardiac arrest and died due to bowel obstruction and perforation.CONCLUSION:Protocolized intensive care management may have contributed to favorable outcomes following Ladd's procedure at our institution.

Introduction of PIC/S Accession Procedure and Suggestions for Establishing a Unified Quality Management System in China

Objective To introduce the accession procedure and evaluation of PIC/S,and help relevant departments in China to understand the requirements of PIC/S in detail,and to promote the process of China’s entry into PIC/S.Methods The procedures and steps of joining PIC/S,the evaluation process of PIC/S,and the experience of several countries in joining PIC/S were introduced and analyzed,which could help the relevant personnel in China understand the specific contents.Results and Conclusion According to the requirements of PIC/S,it is necessary to establish a unified GMP quality management system.

Analysis of Risk Factors of Postoperative Neurological Complications in Patients with Stanford Type A Aortic Dissection Undergoing Sun’s Procedure

Objective:This study analyzed the risk factors of neurological complications in patients with Stanford type A aortic dissection after Sun’s procedure in a single-center with the purpose of improving the effects.Methods:From January 2019 to December 2020,the clinical data of 480 patients with Stanford type A aortic dissection,who were treated by Sun’s procedure in our center were retrospectively analyzed.Univariate and multivariate logistic regression analyses were used to determine the risk factors of postoperative neurological complications.According to whether there were neurological complications after surgery,they were divided into two groups:the group with complications(n=70)and the group without complications(n=410).The clinical data of the two groups were collected and compared.Results:There were 70 cases of patients with postoperative neurological complications in 480 cases.The incidence rates of temporary neurological dysfunction(TND)and permanent neurological dysfunction(PND)was 11.5%(55/480)and 3.1%(15/480),respectively.Univariate analysis showed that the age(≥70 years),stroke history,femoral artery intubation and cardiopulmonary bypass(CPB)time were associated with postoperative PND(p<0.05).Renal dysfunction,emergency surgery,postoperative hypernatremia,postoperative hyperglycemia,postoperative hypoxemia,postoperative low cardiac output syndrome,and assisted time of suction influenced the occurrence of postoperative TND(p<0.05).Multivariate logistic regression analysis showed that age(≥70 years),stroke history,femoral artery intubation and CPB time were independent risk factors for PND.Renal dysfunction,emergency surgery,postoperative hypernatremia,postoperative hyperglycemia,postoperative hypoxemia,postoperative low cardiac output syndrome,and aspiration time were independent risk factors for TND.Compared with the two groups,the hospitalization time and ICU time of the patients in the neurological complications group were significantly prolonged,and the mortality rate was significantly increased(p<0.05).Conclusion:There are many risk factors for neurological complications in patients with Stanford type A aortic dissection after surgery.With the improvement of surgical techniques,optimization of cerebral perfusion,and interventions for risk factors,Sun’s procedure remains the preferred treatment for Stanford type A aortic dissection.

Demage Spreading in the Ising Model with a special Metropolis Dynamics Approach

The time evolution of the Hamming distance (damage spreading) for the and Ising models on the square lattice is performed with a special metropolis dynamics algorithm. Two distinct regimes are observed according to the temperature range for both models: a low-temperature one where the distance in the long-time limit is finite and seems not to depend on the initial distance and the system size; a high-temperature one where the distance vanishes in the long-time limit. Using the finite size scaling method, the dynamical phase transition (damage spreading transition) temperature is obtained as for the Ising model.

Procedural learning changes in patients with Wilson's disease

In the present study, we compared explicit memory performance, using the Wechsler Memory Scale and implicit memory performance, using the Nissen software version of the serial reaction time task, in patients with Wilson＇s disease to normal controls. The Wilson＇s disease patients exhibited deficits in explicit memory tasks, such as figure recall and understanding memory. Moreover, the Wilson＇s disease patients exhibited deficits in implicit memory tasks, including significantly prolonged response times. These findings indicate that Wilson＇s disease patients have explicit and implicit partial memory impairments.

Ohm’s Law Refutes Current Version of the Special Theory of Relativity

It is shown that Ohm’s law is not only the main electrical engineering law, but also a generally scientific worldview law of the extreme significance, as in the interpretation of Steinmetz it proves physical reality of imaginary numbers theoretically and experimentally in the most indisputable way. Thus, it refutes the principle of light speed non-exceedance, which is fundamental in the special theory of relativity. Moreover, unlike the MINOS and OPERA experiments recognized by physical com-munity as not enough reliable, which were conducted for the same purpose, alternative experiments were performed during the research of oscillation processes in linear electric circuits. Therefore, they are absolutely reliable and conclusive as can be repeated and verified in any electrical engineering laboratory. The principle of phy-sical reality of imaginary numbers proven by the electrical engineering experiments is generally scientific, since mathematics is the universal language of the exact sciences. Therefore, all scientific theories and hypotheses in quantum mechanics, relativity theory, geo-physics, cosmology, optics, radio electronics and other sciences should be adjusted accordingly, given the principle of physical reality of imaginary numbers. There is an example of how this can be done in the special theory of relativity and astrophysics. This approach allowed explanation of dark matter and dark energy, which correspond to the invisible parallel universes existing in extra dimensions.

Magnifying endoscopy for the diagnosis of specialized intestinal metaplasia in short-segment Barrett's esophagus

AIM:To determine whether magnified observation of short-segment Barrett’s esophagus(BE)is useful for the detection of specialized intestinal metaplasia(SIM).METHODS:Thirty patients with suspected short-segment BE underwent magnifying endoscopy up to×80.The magnified images were analyzed with respect to their pit-patterns,which were simultaneously classified into five epithelial types[Ⅰ(small round),Ⅱ(straight),Ⅲ(long oval),Ⅳ(tubular),Ⅴ(villous)]by Endo’s classification.Then,a 0.5%solution of methylene blue(MB)was sprayed over columnar mucosa.The patterns of the magnified image and MB staining were analyzed.Biopsies were obtained from the regions previously observed by magnifying endoscopy and MB chromoendoscopy.RESULTS:Three of five patients with a typeⅤ(villous)epithelial pattern had SIM,whereas 21 patients with a non-typeⅤepithelial patterns did not have SIM.The sensitivity,specificity,accuracy,positive predictive value,and negative predictive value of pit-patterns in detecting SIM were 100%,91.3%,92.3%,60%and100%,respectively(P=0.004).Three of the 12 patients with positive MB staining had SIM,whereas 14patients with negative MB staining did not have SIM.The sensitivity,specificity,accuracy,positive predictive value,and negative predictive value of MB staining in detecting SIM were 100%,60.9%,65.4%,25%and100%,respectively(P=0.085).The specificity and accuracy of pit-pattern evaluation were significantly superior compared with MB staining for detecting SIM by comparison with the exact McNemar’s test(P=0.0391).CONCLUSION:The magnified observation of a shortsegment BE according to the mucosal pattern and its classification can be predictive of SIM.

From De Sitter Special Relativity and Snyder's Model to Complete Yang Model

The de Sitter special relativity on the Beltrami-de Sitter-spacetime and Snyder＇s model in the momentum space can be combined together with an IR-UV duality to get the complete Yang model at both classical and quantum levels, which are related by the proposed Killing quantization. It is actually a special relativity based on the principle of relativity of three universal constants （c, ρp, R）.

Preface to the Special Issue in Celebration of Professor Shouwen Yu’s 70th Birthday

Shouwen Yu, emeritus Professor of Applied Mechanics at Tsinghua University, was born ,on May 4, 1939 in Xianyou County, Fujian Province of China. From 1955 to 1958, he studied as an undergraduate student in Department of Civil Structures of Tongji University at Shanghai.