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1.
J Int Bus Stud ; : 1-35, 2022 Dec 30.
Article in English | MEDLINE | ID: mdl-36597430

ABSTRACT

Although cross-border acquisitions (CBAs) are prevalent, many such acquisitions fail to complete. This challenge is even more profound for emerging market MNEs (EMNEs). Drawing upon the vicarious learning theory, we argue that EMNEs can learn from inbound foreign acquirers through the latter's demonstration, professional services firms, and employees. This learning mechanism enables EMNEs to better deal with the complexity and uncertainty in various stages of acquiring foreign firms, thus increasing the completion rate of their outbound CBAs. We also suggest that the effectiveness of vicarious learning is further enhanced by the relatedness between inbound and outbound CBAs. Our analysis of 3599 outbound CBAs from 27 emerging economies during 2000-2018 shows that prior inbound CBAs completed in an emerging economy have a positive effect on the completion likelihood of outbound CBAs conducted by EMNEs from this economy. This positive effect becomes even stronger when the percentage of (1) inbound CBAs served by the EMNE's financial advisors, (2) inbound foreign acquirers that are in the same industry as the EMNE, and (3) inbound foreign acquirers that are from the same country as a focal outbound CBA's target country, is larger. These findings offer new insights into the inbound-outbound acquisition links and the internationalization process of EMNEs. Supplementary Information: The online version contains supplementary material available at 10.1057/s41267-022-00583-x.


Bien que les acquisitions transfrontalières (Cross-Border Acquisitions ­ CBAs) soient répandues, nombre d'entre elles ne sont pas menées à bien. Ce défi est encore plus grand pour les multinationales des marchés émergents (Emerging Market MNEs ­ EMNEs). Nous appuyant sur la théorie de l'apprentissage vicariant, nous argumentons que les EMNEs peuvent apprendre des acquéreurs étrangers entrants par le biais des démonstrations de ces derniers, des entreprises de services professionnels et des employés. Ce mécanisme d'apprentissage permet aux EMNEs de mieux gérer la complexité et l'incertitude des différentes étapes de l'acquisition d'entreprises étrangères, augmentant ainsi le taux d'achèvement de leurs CBAs sortantes. Nous suggérons également que l'efficacité de l'apprentissage vicariant est renforcée par la relation entre les CBAs entrantes et sortantes. Notre analyse de 3599 CBAs sortantes de 27 économies émergentes entre 2000 et 2018 montre que les CBAs entrantes antérieures réalisées dans une économie émergente ont un impact positif sur la probabilité d'achèvement des CBAs sortantes réalisées par les EMNEs de cette économie. Cet impact positif devient encore plus fort lorsque le pourcentage (1) de CBAs entrantes servies par les conseillers financiers de l'EMNE, (2) d'acquéreurs étrangers entrants appartenant au même secteur d'activité que l'EMNE, et (3) d'acquéreurs étrangers entrants provenant du même pays que le pays cible d'une CBA sortante focale, est plus élevé. Ces résultats apportent de nouveaux renseignements sur les liens entre les acquisitions entrantes et sortantes, ainsi que sur le processus d'internationalisation des EMNEs.


Aunque las adquisiciones transfronterizas (CBAs por sus iniciales en inglés) son frecuentes, muchas de ellas no consiguen completarse. Este reto es aún más profundo para las empresas multinacionales de mercados emergentes (EMNE por sus iniciales en inglés). Basándonos en la teoría del aprendizaje vicario, argumentamos que las empresas multinacionales de mercados emergentes pueden aprender de los adquirentes extranjeros entrantes a través de la demostración de estos últimos, de las empresas de servicios profesionales y de los empleados. Este mecanismo de aprendizaje permite a las empresas multinacionales de mercados emergentes afrontar mejor la complejidad y la incertidumbre en varias etapas de la adquisición de empresas extranjeras, aumentando así la tasa de finalización de sus adquisiciones transfronterizas salientes. También sugerimos que la eficacia del aprendizaje vicario se ve reforzada por la relación entre las adquisiciones transfronterizas entrantes y salientes. Nuestro análisis de 3.599 adquisiciones transfronterizas salientes de 27 economías emergentes durante 2000­2018 muestra que las adquisiciones transfronterizas entrantes anteriores completados en una economía emergente tienen un efecto positivo en la probabilidad de finalización de las adquisiciones transfronterizas salientes realizados por las empresas multinacionales de mercados emergentes de esta economía. Este efecto positivo se hace aún más fuerte cuando el porcentaje de (1) las adquisiciones transfronterizas entrantes atendidos por los asesores financieros de la empresa multinacional de mercados emergentes, (2) adquirentes extranjeros entrantes que están en la misma industria que la empresa multinacional de mercados emergentes, y (3) adquirentes extranjeros entrantes que son del mismo país que el país objetivo de una adquisición transfronteriza saliente focal, es mayor. Estos resultados ofrecen nuevas perspectivas sobre los vínculos de adquisición entrante-saliente y el proceso de internacionalización de las empresas multinacionales de mercados emergentes.


Embora as aquisições transfronteiriças (CBAs) sejam predominantes, muitas dessas aquisições não têm sucesso na sua conclusão. Esse desafio é ainda mais profundo para MNEs de mercados emergentes (EMNEs). Com base na teoria da aprendizagem vicária, argumentamos que EMNEs podem aprender com compradores estrangeiros entrantes por meio de sua demonstração, empresas de serviços profissionais e funcionários. Esse mecanismo de aprendizagem permite que EMNEs lidem melhor com a complexidade e a incerteza em vários estágios de aquisição de empresas estrangeiras, dessa forma aumentando a taxa de conclusão de suas CBAs. Também sugerimos que a eficácia da aprendizagem vicária é ainda mais reforçada pela relação entre CBAs de entrada e saída. Nossa análise de 3.599 CBAs de saída de 27 economias emergentes durante 2000­2018 mostra que CBAs de entrada anteriores concluídas em uma economia emergente têm um efeito positivo na probabilidade de conclusão de CBAs de saída conduzidas por EMNEs dessa economia. Este efeito positivo torna-se ainda mais pronunciado quando é maior o percentual de (1) CBAs de entrada atendidos por consultores financeiros da EMNE, (2) adquirentes estrangeiros de entrada que são da mesma indústria que a EMNE e (3) adquirentes estrangeiros de entrada que são do mesmo país do destino de uma CBA de saída. Essas descobertas oferecem novos insights sobre as conexões de aquisição de entrada e saída e o processo de internacionalização de EMNEs.

2.
Water Sci Technol ; 74(3): 722-8, 2016.
Article in English | MEDLINE | ID: mdl-27508377

ABSTRACT

Suspended canopies can cause flow disturbances such as reducing velocities within the canopy, and increasing flow beneath the canopy. Flow modifications by canopies dramatically affect the fate and transport of sediment, nutrients, contaminants, dissolved oxygen, and fauna in aquatic systems. A three-zone model is presented here to predict the longitudinal dispersion coefficient by simplifying Chikwendu's N-zone model. To validate the model, both flow field and tracer experiments were conducted using a straight rectangular Plexiglas flume, with rigid circular rods as the modeled suspended canopies. The result shows that velocities increased above the flume bed and maximized at a point between the canopies and flume bed. Above that point, streamwise velocities decreased into and within the canopies. Reynolds shear stresses were largest at the canopy interface and smallest (zero) at the velocity maximum point. Good agreement between the modeled results and experimental data shows that the model can effectively predict the longitudinal dispersion coefficient in open channels with suspended canopies.


Subject(s)
Plant Leaves/chemistry , Agriculture , Models, Theoretical , Oxygen/analysis , Plant Leaves/growth & development
3.
Asian Pac J Cancer Prev ; 13(5): 2399-403, 2012.
Article in English | MEDLINE | ID: mdl-22901228

ABSTRACT

OBJECTIVE: To compare expression level of serum tumor associated materials (TAM) with several conventional serum tumor biomarkers, eg., carcinoembryonic antigen (CEA), carbohydrate antigen19-9 (CA19-9), carbohydrate antigen 15-3 (CA15-3), alpha-fetoprotein(AFP), in selected solid tumors. METHODS: Patients diagnosed histologically or cytologically with liver, breast, esophageal, gastric, colorectal or pancreatic cancers were enrolled into this study. After diagnosis, the level of TAM was determined by chemical colorimetry, and levels of conventional tumor markers was measured by chemiluminescence methods. RESULTS: A total of 560 patients were enrolled into this study. No statistically significant difference was detected in TAM and the above mentioned tumor biomarkers in terms of their positivity and negativity (P>0.05). CONCLUSIONS: Detection of TAM in liver, breast, esophageal, gastric, colorectal, and pancreatic cancer patients demonstrates a good accordance with CEA, CA199, CA153, and AFP, thus suggesting that further study is warranted to verify whether TAM could be a surrogate for these conventional biomarkers.


Subject(s)
Biomarkers, Tumor/blood , Glycolipids/blood , Glycoproteins/blood , Neoplasms/diagnosis , Neoplasms/metabolism , CA-19-9 Antigen/blood , Carcinoembryonic Antigen/blood , Female , Humans , Male , Middle Aged , Mucin-1/blood , Neoplasm Staging , Prognosis , alpha-Fetoproteins/metabolism
4.
Asian Pac J Cancer Prev ; 13(1): 301-4, 2012.
Article in English | MEDLINE | ID: mdl-22502689

ABSTRACT

OBJECTIVE: To explore the associations of serum tumor associated material (TAM) with other common tumor markers like carcinoembryonic antigen (CEA), carbohydrate antigen 125 (CA125), carbohydrate antigen19-9 (CA19-9) and its clinical application in non-small cell lung cancer (NSCLC) patients. METHODS: A total of 87 patients were enrolled into this study, all with histologically or cytologically confirmed NSCLC. With the method of chemical colorimetry, the level of TAM was determined and compared, while chemiluminescence was used to measure the levels of common tumor markers. RESULTS: The level of TAM decreased after chemotherapy compared with before chemotherapy when CT or MRI scans showed disease control. Furthermore, it increased when disease progressed and there was no statistically significant difference in monitoring of TAM and common tumor markers (P>0.05). CONCLUSIONS: Detecting TAM in NSCLC patients has a higher sensitivity and specificity, so it can be used as an indicator for clinical monitoring of lung cancer chemotherapy.


Subject(s)
Biomarkers, Tumor/blood , Carcinoma, Non-Small-Cell Lung/blood , Carcinoma, Non-Small-Cell Lung/drug therapy , Glycoproteins/blood , Lung Neoplasms/blood , Lung Neoplasms/drug therapy , Oligosaccharides/blood , Adult , Aged , Antineoplastic Agents/therapeutic use , CA-125 Antigen/blood , Carcinoembryonic Antigen/blood , Carcinoma, Non-Small-Cell Lung/diagnosis , Female , Follow-Up Studies , Humans , Lung Neoplasms/diagnosis , Male , Middle Aged , Treatment Outcome
5.
Asian Pac J Cancer Prev ; 12(4): 985-7, 2011.
Article in English | MEDLINE | ID: mdl-21790238

ABSTRACT

OBJECTIVE: To evaluate the effect of ubenimex capsule on general performance and chemotherapy related toxicity in patients with advanced gastric cancer undergoing chemotherapy. METHODS: Patients with advanced gastric cancer were randomly divided into two groups: with or without ubenimex. All received the following regimen for 2 cycles: docetaxel 40mg/m(2) intravenous infusion on days 1 and 8, cisplatin 15mg/m(2) and tegafur 600mg/m(2) intravenous infusion from days 1 to 5. Oral ubenimex capsule at 30mg daily was continued for 8 weeks from the start of chemotherapy. Study targets included Karnofsky performance status (KPS), body weight, leukocytes, hemoglobin, variation of several immunologic index prior,during and after chemotherapy. RESULTS: Sixty-three patients were recruited into this study, 32 randomly entered into the ubenimex capsule and 31 into the control group. KPS score and body weight after chemotherapy were more stable in the treatment group (P <0.05), and myelosuppression, including reduction of leukocytes, hemoglobin and platelets, was milder (P <0.05). T lymphocytes (CD3 +), T assisted- induced lymphocytes (CD3 +, CD4 +), T suppressor and NK cells (CD16 +, CD56 +) all increased after ubenimex capsule intake, while decreasing in the control group (P <0.05). CONCLUSION: Ubenimex capsule could improve general performance and reduce chemotherapy related toxicity in patients with advanced gastric cancer.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/adverse effects , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Leucine/analogs & derivatives , Stomach Neoplasms/drug therapy , Aged , Aged, 80 and over , Blood Platelets/drug effects , Body Weight/drug effects , Capsules/administration & dosage , Cisplatin/administration & dosage , Cisplatin/adverse effects , Docetaxel , Female , Hemoglobins/drug effects , Humans , Killer Cells, Natural/drug effects , Leucine/administration & dosage , Leukocytes/drug effects , Male , Middle Aged , Neoplasm Staging/methods , Stomach Neoplasms/immunology , Stomach Neoplasms/pathology , T-Lymphocytes/drug effects , Taxoids/administration & dosage , Taxoids/adverse effects , Tegafur/administration & dosage , Tegafur/adverse effects
6.
Asian Pac J Cancer Prev ; 12(2): 487-90, 2011.
Article in English | MEDLINE | ID: mdl-21545218

ABSTRACT

PURPOSE: We conducted a phase II study of combination chemotherapy with irinotecan (CPT-11) and nedaplatin (NDP), (INP regimen), to determine the effects and toxicities in patients with extensive stage small cell lung cancer (SCLC). METHODS: From March 2005 to December 2010, 60 patients with histologically or cytologically confirmed extensive SCLC were enrolled into this study. All received treatment CPT-11 at a dose of 60 mg/m² on days 1 and 8, and NDP 20 mg/m² on days 1-5, every 3-4 weeks as a cycle. Patients were treated until tumor progression or unacceptable toxicity. RESULTS: Main toxicities included: myelosuppression, nausea or vomiting, diarrhea, elevation of alanine aminotransferase,and bilirubin. No treatment related death occurred in this study. Thirteen patients had complete response, forty-two had partial response, three remained stable, and two had progressive disease. Median progression-free survival was 13 months (95% confidence interval: 9-17) and median overall survival was 22 months (95% confidence interval: 19-25). CONCLUSION: INP is an effective and well tolerated regimen for treatment of extensive staged SCLC.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Carcinoma, Non-Small-Cell Lung/drug therapy , Lung Neoplasms/drug therapy , Neoplasm Recurrence, Local/drug therapy , Small Cell Lung Carcinoma/drug therapy , Adult , Aged , Camptothecin/administration & dosage , Camptothecin/analogs & derivatives , Female , Humans , Irinotecan , Male , Middle Aged , Neoplasm Staging , Organoplatinum Compounds/administration & dosage , Survival Rate , Treatment Outcome
7.
Asian Pac J Cancer Prev ; 12(11): 3087-90, 2011.
Article in English | MEDLINE | ID: mdl-22393994

ABSTRACT

OBJECTIVE: Endostar® (Rh-endostatin injection) is a new recombinant human endostatin developed by Shandong Simcere-Medgenn Bio-Pharmaceutical Co., Ltd in China. This study was performed to evaluate the efficacy and safety of Endostar plus leucovorin calcium/ 5-fluorouracil/oxaliplatin (FOLFOX4) in treating patients with advanced colorectal cancer. METHODS: Thirty-six patients with advanced colorectal cancer were retrospectively assigned to one of two treatment groups: FOLFOX4 (control) or FOLFOX4 plus Endostar (Endostar) according to patient accreditation. The observational end points were overall response rate, overall survival, progression-free survival and toxicity. RESULTS: The response rate and progression-free survival of Endostar were significantly better than those of control group (P <0.05), but significance was not observed for median survival. In addition, gastrointestinal side effects and incidence of leucopenia were not lower than in the control group (P<0.05). CONCLUSIONS: The addition of Endostar to FOLFOX4 resulted in a higher objective response rate and longer time to disease progression. Hypertension and cardiac ischemia were the principal safety concerns, but were manageable. Endostar deserves to be further investigated by randomized controlled clinical trails.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Colorectal Neoplasms/drug therapy , Endostatins/therapeutic use , Recombinant Proteins/therapeutic use , Colorectal Neoplasms/mortality , Disease-Free Survival , Drug Administration Schedule , Endostatins/administration & dosage , Endostatins/adverse effects , Female , Fluorouracil/therapeutic use , Humans , Hypertension/chemically induced , Leucovorin/therapeutic use , Male , Middle Aged , Myocardial Ischemia/chemically induced , Organoplatinum Compounds/therapeutic use , Recombinant Proteins/administration & dosage , Recombinant Proteins/adverse effects
8.
Asian Pac J Cancer Prev ; 12(10): 2477-8, 2011.
Article in English | MEDLINE | ID: mdl-22320941

ABSTRACT

OBJECTIVE: To determine the efficacy and adverse reactions of OxyContin® administered by rectal route in advanced cancer patients. METHODS: Patients were enrolled into this study in which OxyContin was administered by the rectal route. The visual analogue scale (VAS) was applied to score pain intensity, separated into five degrees. National Cancer Institute-Common Toxicity Criteria (NCI-CTC) were adopted to record the side effects. RESULTS: VAS scores were 10 before treatment, and decreased to 5-6 after OxyContin application by the rectal route.The main side effects were constipation, flatulence and fatigue,with no elevation of transaminases and creatinine. CONCLUSION: OxyContin admistered by rectal route is safe for advanced cancer patients with satisfactory pain control effects, thus deserving further clinical observation.


Subject(s)
Analgesics, Opioid , Oxycodone , Pain Management/methods , Pain/drug therapy , Administration, Rectal , Analgesics, Opioid/administration & dosage , Analgesics, Opioid/adverse effects , Analgesics, Opioid/therapeutic use , Bone Neoplasms/secondary , Humans , Liver Neoplasms/secondary , Lung Neoplasms/diagnosis , Lymphatic Metastasis , Oxycodone/administration & dosage , Oxycodone/adverse effects , Oxycodone/therapeutic use , Pain Measurement , Stomach Neoplasms/diagnosis
9.
Asian Pac J Cancer Prev ; 12(10): 2797-800, 2011.
Article in English | MEDLINE | ID: mdl-22320995

ABSTRACT

OBJECTIVES: To investigate the safety and long-term survival with weekly paclitaxel combined with cisplatin (wTP) as a postoperative adjuvant chemotherapy regimen for breast cancer. METHODS: Patients with breast cancer were treated postoperatively with paclitaxel 40 mg/m2 intravenously on days 1, 8 and 15, cisplatin 25 mg/ m2 also intravenously on days 1,8 and 15, repeated every 21-28 days as a cycle. Toxicity and survival rate were evaluated after chemotherapy. RESULTS: Between September 1993 and August 2001, 20 patients were enrolled. Median age was 52 years (range, 35-71 years). According to the TNM stage system, all patients were staged II or III. Median number of chemotherapy cycles was 3 (range, 1-6), and 10 patients received 4 to 6 cycles of wTP. After a median follow-up of 83 months, 2 deaths and 6 relapses were documented. The five year overall survival rate was 90%. All patients could be evaluated with regard to toxicity. No treatment related deaths were recorded. Neutropenia occurred in 75% of patients during treatment, all recovering after G-CSF injection. Other symptoms included nausea/vomiting, elevation of transaminase, urea nitrogen/creatinine and alopecia. CONCLUSIONS: wTP is safe and effective at the doses tested. However, a randomized clinical trial is needed to compare wTP with other conventional adjuvant regimens of breast cancer postoperatively.


Subject(s)
Breast Neoplasms/drug therapy , Chemotherapy, Adjuvant/adverse effects , Cisplatin/therapeutic use , Paclitaxel/therapeutic use , Adult , Aged , Antineoplastic Combined Chemotherapy Protocols/administration & dosage , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Breast Neoplasms/mortality , Breast Neoplasms/surgery , Chemotherapy, Adjuvant/methods , Chemotherapy, Adjuvant/mortality , China , Cisplatin/administration & dosage , Cisplatin/adverse effects , Female , Granulocyte Colony-Stimulating Factor/administration & dosage , Granulocyte Colony-Stimulating Factor/therapeutic use , Humans , Middle Aged , Neutropenia/complications , Paclitaxel/administration & dosage , Paclitaxel/adverse effects , Treatment Outcome
10.
Asian Pac J Cancer Prev ; 12(9): 2233-6, 2011.
Article in English | MEDLINE | ID: mdl-22296362

ABSTRACT

OBJECTIVE: To observe the efficacy, side effects and impact on the quality of life of Aidi Injection combined with leucovorin calcium/5-fluorouracil/oxaliplatin (FOLFOX4 regimen) in the treatment of advanced colorectal cancer patients. METHODS: A consecutive cohort of 100 patients were divided into two groups: the experimental group was treated with Aidi injection and FOLFOX4 while the control group was only administered FOLFOX4. After more than two courses of treatment, efficacy, quality of life and side effects were evaluated. RESULTS: The response rate of experimental group was not significantly different with that of control group (P>0.05), but differences were significant in clinical benefit response and KPS score. Iin addition, gastrointestinal reaction and the incidence of leukopenia were lower than that of control group (P<0.05). CONCLUSIONS: Aidi injection combined with FOLFOX4 is associated with reduced toxicity of chemotherapy, enhanced clinical benefit response and improved quality of life of patients with advanced colorectal cancer. Aidi injection deserves to be further investigated by randomized control clinical trails.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/adverse effects , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Colorectal Neoplasms/drug therapy , Drugs, Chinese Herbal/administration & dosage , Adolescent , Adult , Aged , Antineoplastic Combined Chemotherapy Protocols/administration & dosage , Cohort Studies , Drugs, Chinese Herbal/adverse effects , Fluorouracil/administration & dosage , Fluorouracil/adverse effects , Humans , Leucovorin/administration & dosage , Leucovorin/adverse effects , Middle Aged , Organoplatinum Compounds/administration & dosage , Organoplatinum Compounds/adverse effects , Phytotherapy , Quality of Life , Young Adult
11.
Asian Pac J Cancer Prev ; 12(9): 2405-9, 2011.
Article in English | MEDLINE | ID: mdl-22296392

ABSTRACT

OBJECTIVE: To evaluate the impact of the multi-drug resistance 1(MDR1) C3435T polymorphism on clinical outcomes in gastric cancer patients treated with postoperative adjuvant chemotherapy. METHODS: From January 2005 to December 2008, 102 patients with surgically resected gastric cancers were enrolled into this study in the Affiliated Jiangsu Cancer Hospital of Nanjing Medical University. The polymorphism was tested using real time polymerase chain reaction (RT-PCR) cycling probes and the relationship with clinical outcomes after postoperative adjuvant chemotherapy was analyzed by SPSS 17.0. RESULTS: The CT/TT genotype of C3435T was significantly associated with a shorter progression-free survival (PFS) and overall survival (OS) compared with the CC genotype [PFS: adjusted hazard ratio (HR) = 2.01, 95% confidence intervals (CI): 1.17-3.45, P = 0.012; OS: adjusted HR = 2.37, 95% CI: 1.31-4.28, P = 0.004]. TNM stage was also associated with PFS (adjusted HR = 2.33, 95% CI: 1.34-4.05, P = 0.003) and OS (adjusted HR = 2.62, 95% CI: 1.44-4.76, P = 0.002) in gastric cancer patients treated with postoperative adjuvant chemotherapy. CONCLUSION: Our results suggest that the MDR1 gene C3435T polymorphism is associated with clinical outcomes in gastric cancer patients treated with postoperative adjuvant chemotherapy. This now needs to be confirmed by a randomized prospectively controlled study.


Subject(s)
ATP Binding Cassette Transporter, Subfamily B, Member 1/genetics , Stomach Neoplasms/genetics , Stomach Neoplasms/therapy , ATP Binding Cassette Transporter, Subfamily B , Adult , Aged , Chemotherapy, Adjuvant/methods , Disease-Free Survival , Drug Resistance, Multiple , Female , Genotype , Humans , Male , Middle Aged , Neoplasm Staging , Polymorphism, Genetic , Stomach Neoplasms/drug therapy , Stomach Neoplasms/surgery , Treatment Outcome , Young Adult
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