Theory : Evidence-Based Practice: What do to when evidence is Lacking

( Charmaine Kleiber ) 연세대학교 간호정책연구소 2005 간호학탐구 Vol.13 No.2

Comparison of Serum Anti-Mullerian Hormone-Level Changes in Single-Port Laparoscopic Endometriotic and Non-Endometriotic Ovarian Cyst Enucleations

( Charmaine A. Cabiscuelas ),( Lan Ying Li ),( Ki Eun Seon ),( Yup Kim ),( Jae Hoon Lee ),( Eun Ji Nam ),( Jung-yun Lee ),( Sunghoon Kim ),( Young Tae Kim ),( Sang Wun Kim ) 대한폐경학회 2021 대한폐경학회지 Vol.27 No.3

Objectives: This study compared serum anti-Mullerian hormone (AMH) levels in endometriotic cysts (ECs) with those in non-ECs and analyzed changes thereof after single-port laparoscopic (SPL) ovarian cyst enucleation using vasopressin injection. Methods: In total, 180 patients (EC group, n = 112; non-EC group, n = 68) who underwent SPL ovarian cyst enucleation were retrospectively reviewed. Their AMH levels were checked preoperatively, on postoperative day 10 (POD10), and on postoperative month 3 (POM3). Changes in AMH levels were analyzed according to tumor type and vasopressin use. Results: The median initial and postoperative serum AMH levels in the EC group were significantly lower than those in the non- EC group (preoperation: 2.0 vs 3.8 ng/mL, P < 0.001; POD10: 1.0 vs 3.2 ng/mL, P < 0.001; POM3: 1.2 vs 3.6 ng/mL, P < 0.001). The postoperative decrease in AMH levels was higher in the EC group than the non-EC group on POD10 (0.8 vs 0.5 ng/mL, P = 0.011) but not on POM3 (0.7 vs 0.5 ng/mL, P = 0.164). Vasopressin injection during EC enucleation had no significant effect on the decrease in AMH levels on POD10 (vasopressin group vs non-vasopressin group: 1.0 vs 0.8 ng/mL, P = 0.253) and POM3 (vasopressin group vs nonvasopressin group: 1.4 vs 1.1 ng/mL, P = 0.242). Conclusions: AMH levels were lower at baseline and had higher decreasing rates after SPL surgery in the EC group relative to the non- EC group. Vasopressin injection might not protect the ovary from the postoperative decrease in AMH levels.

Strengthening Local Governments’ Human Resource Management through PRIME-HRM: An Analysis of the Case of Carmona, Philippines

Charmaine B. Distor,Jung Wook Lee(이정욱) 한국지방정부학회 2021 한국지방정부학회 학술대회자료집 Vol.2021 No.5

A Multiplicity of Regionalisms in Southeast Asia

Charmaine Misalucha 이화여자대학교 국제지역연구소 2013 Asian International Studies Review Vol.14 No.2

Regional arrangements in Southeast Asia (SEA) beg the question of why this “alphabet soup” exists. This can be addressed by looking at a wider context: these regionalisms are not merely SEA states’ responses to international events,nor are they solely projections of independence/self-assertion. Instead, SEA’s ventures demonstrate Constructivist logic: Southeast Asian states shape and are themselves shaped by the historical and geographical circumstances in which they find themselves. Beginning with the assumption that international relations are fluid and mutually constitutive,SEA regionalisms can be explained by complex engagement, as seen in the evolution of ASEAN and the dynamics of the APT and the EAS. In short, this paper argues that the multiplicity of regionalisms in Southeast Asia is a reflection of Constructivism at work.

Synthesis of mesoporous RGO@(Co,Mn)₃O₄ nanocomposite by microwave-assisted method for supercapacitor application

Lamiel, Charmaine,Nguyen, Van Hoa,Roh, Changhyun,Kang, ChanKyu,Shim, Jae-Jin Elsevier 2016 ELECTROCHIMICA ACTA Vol.210 No.-

<P><B>Abstract</B></P> <P>Supercapacitors have attracted considerable attention because they can store more energy than conventional capacitors and can have higher power densities than batteries. In this study, microwave irradiation was used for the rapid and facile synthesis of mesoporous RGO@(Co,Mn)<SUB>3</SUB>O<SUB>4</SUB> oxide nanosheets as an electrode material for supercapacitor applications. The as-prepared electrode exhibited a high capacitance of 1004Fg<SUP>−1</SUP> at 3mVs<SUP>−1</SUP> in a 6M KOH electrolyte solution. Moreover, the electrode showed good specific retention and high Coulombic efficiency of 81.6% and 96.9%, respectively, after 3000 charge-discharge cycles. The electrode also exhibited a high energy density of 53Whkg<SUP>−1</SUP> (at power density of 500Wkg<SUP>−1</SUP>) and high power density 5000Wkg<SUP>−1</SUP> (at energy density of 27Whkg<SUP>−1</SUP>). Overall, the RGO@(Co,Mn)<SUB>3</SUB>O<SUB>4</SUB> electrode showed very promising results for supercapacitor applications.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Mesoporous RGO@(Co,Mn)<SUB>3</SUB>O<SUB>4</SUB> nanosheets were prepared by microwave-assisted method. </LI> <LI> The as-prepared electrode exhibited a high capacitance of 1004Fg<SUP>−1</SUP> at 3mVs<SUP>−1</SUP> in a 6M KOH. </LI> <LI> It exhibited an energy density of 53Whkg<SUP>−1</SUP> at a power density of 500Wkg<SUP>−1</SUP>. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Microwave-assisted binder-free synthesis of 3D Ni-Co-Mn oxide nanoflakes@Ni foam electrode for supercapacitor applications

Lamiel, Charmaine,Nguyen, Van Hoa,Kumar, Deivasigamani Ranjith,Shim, Jae-Jin Elsevier 2017 CHEMICAL ENGINEERING JOURNAL -LAUSANNE- Vol.316 No.-

<P><B>Abstract</B></P> <P>The outstanding performance of nickel foam (NF) as a current collector owing to its better dimensional stability, high electrical conductivity, and less contact resistance has made it a promising candidate for binder-free electrode for supercapacitors. In addition to the current collector, highly stable structures are also favored to facilitate rapid ion insertion and prevent structural collapse of the electrode materials. In this work, a binder-free and controlled structure of Ni-Co-Mn oxide on NF was constructed effectively using microwave irradiation. The structure obtained from the optimal conditions (concentration and holding time) involved hierarchical interconnected nanoflakes with void spaces, forming a stable and conductive network of nanoflakes on the NF. The synergistic effects of three metal (Ni-Co-Mn) oxides resulted in a high specific capacitance of 2536Fg<SUP>−1</SUP> at 5mAcm<SUP>−2</SUP> (6.49Ag<SUP>−1</SUP>) in a mixed KOH/K<SUB>3</SUB>Fe(CN)<SUB>6</SUB> electrolyte. The as-prepared symmetric device also obtained a high capacitance of 298Fg<SUP>−1</SUP>, a high energy density of 41.4Whkg<SUP>−1</SUP>, and a high power density of 5.4kWkg<SUP>−1</SUP>. The highly architectured Ni-Co-Mn oxide nanoflakes improved the pseudocapacitive performance significantly, making it a promising electrode material for high-performance binder-free supercapacitors.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Hierarchical 3D Ni-Co-Mn oxide@Ni foam was synthesized within 30s under microwave. </LI> <LI> Max. capacitance was 1151Fg<SUP>−1</SUP> in KOH and increased to 106.5% after 5000 cycles. </LI> <LI> Capacitance was 2356Fg<SUP>−1</SUP> with 79.6% retained after 5000 cycles using K<SUB>3</SUB>Fe(CN)<SUB>6</SUB>. </LI> <LI> Symmetrical supercapacitor was with an ED of 43.8Whkg<SUP>−1</SUP> and PD of 5.8kWkg<SUP>−1</SUP>. </LI> <LI> Energy density of 41.4Whkg<SUP>−1</SUP> and power density of 5.4kWkg<SUP>−1</SUP> for supercapacitor. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Enhancement of electrochemical performance of nickel cobalt layered double hydroxide@nickel foam with potassium ferricyanide auxiliary electrolyte

Lamiel, Charmaine,Nguyen, Van Hoa,Hussain, Iftikhar,Shim, Jae-Jin Elsevier 2017 ENERGY Vol.140 No.1

<P><B>Abstract</B></P> <P>Metal oxide nanostructures have been studied widely to overcome the limitations in the capacitance of the carbon-based supercapacitor electrode materials. An electrode with a very porous 3D structure is preferred to facilitate the mass transfer of large electrolyte ions. In this study, highly nanostructured, binder-free Ni-Co-based pseudocapacitive electrodes were synthesized directly on porous 3D structured nickel foam (NF) current collectors using low-power microwave irradiation. The electrochemical performance of the Ni-Co layered double hydroxide (Ni-Co-LDH) showed better performance than Ni-Co oxide (Ni-Co-O) with the further addition of redox additive/active electrolytes, such as K<SUB>3</SUB>Fe(CN)<SUB>6</SUB>. The specific capacitances of 4664 F g<SUP>−1</SUP> for Ni-Co-LDH and 1758 F g<SUP>−1</SUP> for Ni-Co-O at 5 mA cm<SUP>−2</SUP> in the KOH/K<SUB>3</SUB>Fe(CN)<SUB>6</SUB> electrolyte were improved greatly compared to the values of their corresponding materials in the conventional KOH electrolyte (2875 and 250 F g<SUP>−1</SUP>, respectively). Interestingly, the Ni-Co-LDH//AC asymmetric device exhibited a specific capacitance of 108.9 F g<SUP>−1</SUP> and an energy density of 38.7 Wh kg<SUP>−1</SUP> with a stability of 61.9% after 5000 cycles. The facile yet cost-effective synthesis of nanostructured electrodes provides a versatile approach for the design of high-performance pseudocapacitive electrodes for future energy-storage systems.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Binder-free 3D Ni-Co LDH nanoflakes on Ni foam were synthesized under microwave. </LI> <LI> Ni-Co-LDH had a high specific capacitance 2875 F g<SUP>−1</SUP>, while Ni-Co-O had 250 F g<SUP>−1</SUP>. </LI> <LI> The Specific capacitance increased from 2875 to 4664 F g<SUP>−1</SUP> by adding K<SUB>3</SUB>Fe(CN)<SUB>6</SUB>. </LI> <LI> 91.1% of capacitance of Ni-Co-LDH was retained after 3000 cycles in KOH/K<SUB>3</SUB>Fe(CN)<SUB>6</SUB>. </LI> <LI> The Ni-Co-LDH//AC asymmetric device showed an energy density of 38.7 Wh kg<SUP>−1</SUP>. </LI> </UL> </P>

Resilience and recovery: The Philippine IT–BPO industry during the global crisis

Anna Charmaine Abara,허윤 한국외국어대학교 국제지역연구센터 2013 International Area Studies Review Vol.16 No.2

The Philippine business process outsourcing industry is poised to be a significant sector contributing to the country’s economic growth. Owing to the rapid development of information and communication technology in the past decade, the industry constantly boasts double-digit growth rates in revenue and manpower. However, as demand for outsourcing decelerated during the 2008 Global Financial Crisis, the industry faced its first major challenge. This research explores the Philippine information technology–business process outsourcing industry’s performance during the crisis by assessing the post-crisis results of the industry’s targets and strategies. The study identifies and analyzes the factors that contribute to the sector’s resilience and robust growth during the recession and concludes that offshored services can maintain short- to midterm growth, but in the long term face major challenges with respect to innovation and talent sustainability. More importantly, the research emphasizes the central role of the Philippine government in the decision-making and policy-reform process that is essential in developing the Philippines into a business process outsourcing center of excellence.

Enhanced electrochemical performance of nickel-cobalt-oxide@reduced graphene oxide//activated carbon asymmetric supercapacitors by the addition of a redox-active electrolyte

Lamiel, Charmaine,Lee, Yong Rok,Cho, Moo Hwan,Tuma, Dirk,Shim, Jae-Jin Elsevier 2017 JOURNAL OF COLLOID AND INTERFACE SCIENCE - Vol.507 No.-

<P><B>Abstract</B></P> <P>Supercapacitors are an emerging energy-storage system with a wide range of potential applications. In this study, highly porous nickel-cobalt-oxide@reduced graphene oxide (Ni-Co-O@RGO-s) nanosheets were synthesized as an active material for supercapacitors using a surfactant-assisted microwave irradiation technique. The RGO-modified nanocomposite showed a larger specific area, better conductivity, and lower resistivity than the unmodified nanocomposite because the RGO facilitated faster ion diffusion/transport for improved redox activity. The synergistic effect of Ni-Co-O@RGO-s resulted in a high capacitance of 1903Fg<SUP>−1</SUP> (at 0.8Ag<SUP>−1</SUP>) in a mixed KOH/redox active K<SUB>3</SUB>Fe(CN)<SUB>6</SUB> electrolyte. The asymmetric Ni-Co-O@RGO-s//AC supercapacitor device yielded a high energy density and power density of 39Whkg<SUP>−1</SUP> and 7500Wkg<SUP>−1</SUP>, respectively. The porous structure and combination of redox couples from both the electrode and electrolyte provided a highly synergistic effect, which improved the performance of the supercapacitor device.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Critical Success Factors in Business - to - Business E - commerce : The Views of IS Managers

Michal Hermanek,Charmaine Schlemmer,Beverley G . Hope,Sid L . Huff 한국경영정보학회 2001 한국경영정보학회 학술대회논문집 Vol.2001 No.-