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"Entrepreneurs and entrepreneurship played a critical role in transforming Japan’s telecommunications sector. Between the mid-1990s and mid-2000s, in a sector long dominated by a stable set of large actors with well-established patterns of interaction, entrepreneurs introduced new technologies, new business models, and new norms of interaction. The subsequent transformation of Japan’s telecommunications sector was dramatic, providing consumers with not only fast and sophisticated services but also low prices and an entire new ecosystem of mobile content—a considerable departure from Japan’s long track record of being known as producer- rather than consumer-oriented, with consumers enjoying high-end services and products, but at high prices. Yet, these transformative entrepreneurs were not acting in a vacuum. Regulatory shifts in telecommunications were critical in providing opportunities for entrepreneurs, while simultaneously protecting them from large incumbent firms. These regulatory shifts were driven by the political dynamics of the 1990s as Japan struggled through its post-bubble economic malaise and political changes."

"In a world plagued by wicked problems, escaping the win-lose dynamics of zero-sum game approaches is crucial for finding integrated, inclusive solutions to complex issues. In this book, the reader will uncover real-life examples of inclusive leaders that have broken the zero-sum game. From Ivy League colleges to African villages, from the very top of the Catholic Church to anarchist conferences and meetings, inclusive leadership can be applied and the protagonists will tell you how.As the examples in the book demonstrate, inclusive leadership is not the privilege of a few gifted individuals with extraordinary human qualities. Inclusive leaders are not necessarily charismatic (like Nelson Mandela, Gandhi, or Martin Luther King, Jr). The vast majority of inclusive leaders are just regular everyday people. They only differ and what a difference it makes! in being able to turn what seem to be zero-sum problems into opportunities for inclusiveness."

"This book emerges from within the everyday knowledge practices of International Relations (IR) scholarship and explores the potential of experimental writing as an alternative source of 'knowledge' and political imagination within the modern university and the contemporary structures of neoliberal government. It unlocks and foregrounds the power of writing as a site of resistance and a vehicle of transformation that is fundamentally grounded in reflexivity, self-crafting and an ethos of care. In an attempt to cultivate new sensibilities to habitual academic practice the project re-appropriates the skill of writing for envisioning and enacting what it might mean to be working in the discipline of IR and inhabiting the usual spaces and scenes of academic life differently. The practice of experimental writing that intuitively unfolds and develops in the book makes an important methodological intervention into conventional social scientific inquiry both regarding the politics of writing and knowledge production as well as the role and position of the researcher. The formal innovations of the book include the actualization and creative remaking of the Foucaultian genre of the 'experience book, ' which seeks to challenge scholarly routine and offers new experiences and modes of perception as to what it might mean to 'know' and to be a 'knowing subject' in our times. The book will be of interest to researchers engaged in critical and creative research methods (particularly narrative writing, autobiography, storytelling, experimental and transformational research), Foucault studies and philosophy, as well as critical approaches to contemporary government and studies of resistance."

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Latar Belakang : Penyakit insufisiensi vena kronik (PIVK) memiliki prevalensi yang cukup tinggi di seluruh dunia, yaitu sekitar 60-70%. Penyebab paling sering pada penyakit insufisiensi vena kronik adalah kelainan primer dari dinding vena dan katupnya mengakibatkan inkompetensi pada katup vena, reflux dan obstruksi vena. Transforming growth factor-𝛽1 (TGF-𝛽1) adalah  sitokin dengan polipeptida kompleks yang secara signifikan ditemukan pada semua pasien penyakit insufisiensi vena kronik. Waktu refluks yang didapat dari pemeriksaan Ultrasonografi duplex (DUS) menunjukkan derajat keparahan dari insufisiensi katup vena. Akan tetapi, Hubungan kadar TGF-𝛽1 terhadap tingkat keparahan dari penyakit insufisiensi vena kronik belum diketahui.

Tujuan : untuk mengetahui perbedaan kadar TGF-𝛽1 terhadap tingkat keparahan dari penyakit insufisiensi vena kronik pada vena superfisial tungkai bawah.

Metode : Studi menggunakan desain potong lintang pada pasien dengan vena yang sehat dan pasien dengan penyakit insufisiensi vena kronik yang dilakukan oeprasi bedah pintas arteri koroner (BPAK) di Rumah Sakit Pusat Jantung dan Pembuluh Darah Harapan Kita pada April – Mei 2024. Tingkat keparahan penyakit insufisiensi vena kronik dinilai dengan waktu refluks dari pemeriksaan ultrasonografi duplex. TGF-𝛽1 didapat dari pemeriksaan ELISA pada jaringan vena. Luaran primer adalah perbedaan kadar TGF-𝛽1 berdasarkan tingkat keparahan penyakit insufisiensi vena kronik.

Hasil : Sebanyak total 56 subjek berhasil dilakukan analisis akhir. Mayoritas subjek dengan PIVK pada penelitian ini (67,7%) tergolong ke dalam PIVK derajat berat (waktu refluks >1000 ms). Tidak terdapat perbedaan nilai median yang signifikan antara derajat keparahan PIVK dengan kadar TGF-β1 (p>0.05). Namun dapat dilihat bahwa median kadar TGF-β1 lebih meningkat pada vena dengan PIVK ringan-sedang dan berat (14,27 pg/mg dan 14,04 pg/mg) jika dibandingkan dengan vena normal (10,97 pg/mg).

Kesimpulan : Tidak terdapat perbedaan signifikan antara kadar TGF-𝛽1 terhadap tingkat keparahan penyakit insufisiensi vena kronik pada vena superfisial tungkai bawah pada pasien yang dilakukan tindakan bedah pintas arteri koroner.

 

Kata kunci: Insufisiensi vena kronik, Transforming growth factor - Beta 1, Waktu refluks

 

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Background: Chronic venous insufficiency (PIVK) has a fairly high prevalence throughout the world, around 60-70%. The most common cause of chronic venous insufficiency is primary abnormalities of the venous wall and valve resulting in valve incompetence, reflux, and venous obstruction. Transforming Growth Factor-β1 (TGF-β1) is a complex polypeptide cytokine that is significantly found in all patients with chronic venous insufficiency. Reflux time obtained from Duplex Ultrasonography (DUS) examination indicates the severity of valve insufficiency. However, the relationship between TGF-β1 levels and the severity of CVI has not yet been determined.

Objective: To determine the differences in TGF-β1 levels concerning the severity of chronic venous insufficiency in the superficial veins of the lower limbs.

Method: The study used a cross-sectional design in patients with healthy veins and patients with chronic venous insufficiency who undergoing coronary artery bypass surgery at the Harapan Kita National Cardiovascular Center from April to May 2024. The severity of chronic venous insufficiency was assessed by reflux time from duplex ultrasonography examination. TGF-β1 was obtained from ELISA examination of venous tissue. The primary outcome was the difference in TGF-β1 levels based on the severity of chronic venous insufficiency.            

Results: A total of 56 subjects underwent final analysis. The majority of subjects with CVI in this study (67.7%) were classified into severe CVI (reflux time >1000 ms). There were no significant differences in median values between the severity of CVI and TGF-β1 levels (p>0.05). However, it was observed that the median TGF-β1 levels increased in veins with mild-moderate and severe CVI (14.27 pg/mg and 14.04 pg/mg) compared to normal veins (10.97 pg/mg).

Conclusion: There is no significant differences in TGF-β1 levels concerning the severity of chronic venous insufficiency in the superficial veins of the lower limbs in patients undergoing coronary artery bypass graft surgery.

Keywords: Chronic venous insufficiency, Transforming Growth Factor-β1, Reflux time.

 

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"Latar Belakang: Lupus Eritematosus Sistemik (LES) merupakan penyakit autoimundengan penyebab multifaktorial. Ketidakseimbangan sitokin Th17 (Interleukin-17; IL-17) dan T-regulator (Transforming Growth Factor-; TGF- and Interleukin-10; IL-10)diduga terlibat dalam patogenesis LES yang mempengaruhi aktivitas penyakit.Tujuan: Penelitian dilakukan untuk menguji perbedaan rerata IL-17, TGF- dan IL-10dengan aktivitas penyakit LES dan menguji korelasi sitokin Th17/T-regulator.Metode: Penelitian ini merupakan studi potong lintang melibatkan 68 pasien LESberdasarkan kriteria inklusi MEX-SLEDAI <2 untuk LES inaktif dan >=2 untuk LESaktif. Kriteria eksklusi adalah pasien LES dengan riwayat autoimun lain, inflamasikronik; infeksi akut secara klinis; serta asma bronkial, dermatitis atopi dan urtikariadidasarkan pada catatan rekam medis. Serum IL-17, TGF-, IL-10 diperiksa denganmetode ELISA. Data dianalisis dengan perangkat lunak SPSS 20 menggunakan uji-Tindependen untuk data berdistribusi normal dan uji Mann-Whitney untuk data tidaknormal.Hasil: Rerata IL-17 serum adalah 19,67 (1,299) pg/ml. Median TGF- dan IL-10 adalah175,02 (132-396) pg/ml dan 2,96 (0-11) pg/ml. Tidak terdapat perbedaan rerata yangsignifikan dari kadar IL-17, TGF- dan IL-10 serum pasien LES aktif dan tidak aktif.Didapatkan korelasi positif sedang yang signifikan antara IL-17 dan IL-10 (p<0,005;r=0,529) dan korelasi yang tidak signifikan antara IL-17 dan TGF- (p>0,005; r=-0,142).Simpulan: Tidak didapatkan perbedaan rerata yang signifikan sitokin Th17/Treg pasienLES aktif dan inaktif. Terdapat korelasi positif signifikan sedang antara IL-17 dan IL-10, sementara tidak terdapat korelasi signifikan antara IL-17 dan TGF-. Penelitianlanjutan dengan disain kohort prospektif diperlukan untuk mengkonfirmasi peransitokin jalur Th17/Treg ini pada pasien LES aktif dan inaktif.

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Proliferative vitreoretinopathy  (PVR) pada ablasio retina rhegmatogen (ARR) menurunkan tingkat keberhasilan anatomis dan fungsional. Transforming growth factor-β (TGF-β) merupakan pro-fibrotik yang berperan penting dan dapat menjadi target terapi dan masih belum ada data mengenai TGF-β3 pada PVR. Penelitian ini bertujuan menguji kadar TGF-β2 dan TGF-β3 pada kasus PVR A dan B.  Penelitian ini berdesain potong lintang pada pasien ARR PVR A dan B yang menjalani vitrektomi di RSCM Kirana. Sampel vitreus diambil intra-operasi dan diperiksa di protein total, TGF-β2 dan TGF-β3 dengan metode ELISA. Didapatkan 20 sampel; 10 mata untuk PVR A dan 10 untuk PVR B. Tidak didapatkan perbedaan bermakna untuk karakteristik kedua grup maupun berdasarkan TGF-β2 dan TGF-β3. Secara umum didapatkan level TGF-β2 yang lebih tinggi pada PVR A dan B namun tidak terdapat perbedaan signifikan (p>0,05). Didapatkan korelasi negatif (Spearman r-0,468)  antara TGF- β2 dengan TGF- β3 pada seluruh grup PVR (p=0,037) namun tidak didapatkan korelasi yang signifikan per grup PVR. Tidak ditemukan perbedaan bermakna antara TGF- β2 dan TGF- β3 dengan primary attachment rate. Tidak didapatkan perbedaan bermakna antara TGF- β2 dan 3 pada ARR yang terjadi sebelum atau sesudah 14 hari namun ditemukan tren rasio TGF- β2/protein total yang semakin rendah 14 hari pasca ARR Studi ini merupakan studi pertama yang membandingkan kadar TGF- β2 dan TGF- β3 pada pasien dengan PVR A dan B. Secara tren, ditemukan kadar TGF-β2 yang lebih tinggi pada ARR dengan PVR  B dibanding A dan kadar TGF-β3 yang lebih rendah pada ARR dengan PVR B dibanding A.

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Proliferative vitreoretinopathy (PVR) in rhegmatogenous retinal detachment (RRD) reduces anatomical and functional success rate. Transforming growth factor-β (TGF-β) is a pro-fibrotic that plays an important role and can be a therapeutic target and there is still no data on TGF-β3 in PVR. This study aims to examine the levels of TGF-β2 and TGF-β3 in cases of PVR A and B. This study used cross-sectional design in ARR PVR A and B patients who underwent vitrectomy at RSCM Kirana. Vitreous samples were taken intra-operatively and examined for total protein, TGF-β2 and TGF-β3 using ELISA. A total of 20 samples were obtained; each 10 eyes for PVR A and 10 for PVR B. There were no significant differences in the characteristics of the two groups or based on TGF-β2 and TGF-β3. In general, higher TGF-β2 levels were found in PVR A and B but there was no significant difference (p>0.05). A negative correlation (Spearman r-0.468) was found between TGF-β2 and TGF-β3 in all PVR groups (p=0.037) but no significant correlation was found per PVR group. There was no significant difference between TGF-β2 and TGF-β3 with primary attachment rate. There was no significant difference between TGF-β2 and 3 in ARR that occurred before or after 14 days, but a trend was found in the ratio of TGF-β2/total protein that was getting lower ≥14 days after ARR. This study is the first study to compare TGF-β2 and TGF-β3 levels in patients with PVR A and B. In terms of trend, higher TGF-β2 levels were found in ARR with PVR B compared to A and lower TGF-β3 levels in ARR with PVR B compared to A."