bluuebunny/crossref_metadata_2025 huggingface dataset:
Debt Financing and Firm Performance: Evidence from an Emerging South-Asian Country
Authors: Rahman Mohammad Mazibar , Kakuli Umme Khadija , Parvin Shahnaz , Sultana Ayrin
Published: November 2019

This paper aims to empirically investigate the impact of capital structure choice on the firm performance of the firms listed under the Dhaka Stock Exchange of Bangladesh. Multiple regression has been employed in this research to determine the relationship between the capital structure and the firm’s financial performance. Three ratios of financial performance, i.e., return on assets, return on equity, and gross margin, have been used as a sample of non-financial Bangladeshi companies, selected from 2010 to 2015. The study records numerous findings. First, the result shows a significant negative influence of long-term debt (LTD) and total debt (TTD) on firm financial performance measured by return on assets (ROA), but no significant relationship is found between short-term debt (STD) and this measure of firm’s financial performance. Moreover, the research found that there is no significant effect of short-term debt, long-term debt and total debt on the firm financial performance measured by return on equity (ROE). Finally, the result shows that a significant negative influence of short-term debt and total debt on firm performance measured by GM, but no significant relationship was found between long-term debt and financial performance. In general terms, the results of this study may suggest that capital structure has a negative influence on firms’ financial performance in Bangladesh.
Postacute Care Utilization in Postsurgical Orthogeriatric Hip Fracture Care
Authors: Arshi Armin , Iglesias Brenda C. , Zambrana Lester E. , Lai Wilson C. , Zeegen Erik N. , Sassoon Adam A. , Stavrakis Alexandra I.
Published: November 2019

Introduction:

Among surgical patients, utilization of institutional-based postacute care (PAC) presents a notable financial burden and is associated with increased risk of complications and mortality rates when compared with discharge home. The purpose of this study was to identify predictors of postdischarge disposition to PAC in geriatric patients after surgical fixation of native hip fractures.

Methods:

We have done a query of the American College of Surgeons National Surgical Quality Improvement Program to identify geriatric (≥65 years) patients who sustained surgical femoral neck, intertrochanteric, and subtrochanteric hip fractures in 2016. Multivariate regression was used to compute risk factors for discharge to and prolonged stay (>30 days) in PAC.

Results:

Eight thousand one hundred thirty-three geriatric hip fracture patients with sufficient follow-up data were identified. Of these, 6,670 patients (82.0%) were initially discharged to PAC after their hip fracture episode of care, and 2,986 patients (36.7%) remained in PAC for >30 days. Age (odds ratio [OR] 1.06 [1.05 to 1.08], P < 0.001), partial (OR 2.41 [1.57 to 3.71], P < 0.001) or total dependence (OR 3.03 [1.92 to 4.46], P < 0.001) for activities of daily living, dementia (OR 1.62 [1.33 to 1.96], P < 0.001), diabetes (OR 1.46 [1.14 to 1.85], P = 0.002), hypertension (OR 1.32 [1.10 to 1.58], P = 0.002), and total hospital length of stay (OR 1.04 [1.01 to 1.08], P = 0.006) were independent risk factors for discharge to PAC. Age (OR 1.05 [1.04 to 1.06], P < 0.001), partial (OR 2.86 [1.93 to 3.79], P < 0.001) or total dependence (OR 3.12 [1.45 to 4.79], P < 0.001) for activities of daily living, American Society of Anesthesiologist's classification (OR 1.27 [1.13 to 1.43], P < 0.001), dementia (OR 1.49 [1.28 to 1.74], P < 0.001), and total hospital length of stay (OR 1.10 [1.08 to 1.13], P < 0.001) were independent risk factors for prolonged PAC stay >30 days.

Discussion:

Discharge to PAC is the norm among patients undergoing hip fracture surgery. Provider foreknowledge of risk factors may help improve hip fracture outcomes and decrease healthcare costs.
Acculturation in Performing Shakespeare on Saudi Stage
Authors: Tunsi Eiman Mohammed Saeed Saleh
Published: November 2019

Shakespeare is among those theatrical icons highly celebrated in the Arab world. The aim in this paper is to investigate acculturation strategies commenced by theatre amateurs in performing Shakespeare’s plays in Saudi Arabia. Major to the acculturation process is Hakim’s argument to eradicate Arabic versions from supernatural elements rejected in the Islamic Arabic culture. Among references quoted in this study are John W. Berry’s acculturation steps and Robert Barton’s three I’s of investigation, inference and invention. This study follows the descriptive analytical method and relies on interviews and focus groups to trace those strategies endeavored in local adaptations of Shakespeare’s The Merchant of Venice, Macbeth and Hamlet. Figures demonstrate not only the different sectors in Saudi amateur theatre, but also their strategies in acculturation for the aim of staging to different audiences. One of the most important figures is the module recommended in the conclusion to facilitate the tasks of directors in performing Shakespeare and Classics to non-English audiences.
The Representation of Motherless and Fatherless Homes in Novels of George Eliot
Authors: Jabeen Tahira
Published: November 2019

George Eliot wrote about the social, cultural, and historical issues of her time. She represented the middle-class homes in her novels and showed how the Industrial Revolution changed the very setting of domestic environment. The home became the domain of women, where they were to fulfil the nurturing duties while men moved to work place to provide for their dependents. In middle class families, the nurturing duty was not the domain of the father only in the society of this period. Fathers and mothers substituted their duties either under extraordinary circumstances or as a matter of choice. This study analyses the substitution of duties by fathers and mothers in Eliot’s novels with the help of comprehensive and interdisciplinary supporting literary, social, and historical resources like magezines and books, from the Victorian age. The study concludes that George Eliot’s homes are not perfect without a benevolent mother and responsible father.
Impact of the Development of ICT Infrastructure and Security on the Effectiveness of Accounting Information in the Jordanian Banking Sector
Authors: Hussein Al- Khasawneh Reem Oqab , Mohamed bshayreh Mohamed Mahmoud , Ali Al-Oqool Mohamed
Published: November 2019

Information and communication technology ICT infrastructure is an essential foundation of the information society characterized by modernization and advance. ICT infrastructure consists of main five elements including physical resources, human resources, software, databases and networks and communication. The study aims at identifying the impact of the development of ICT infrastructure, which includes physical and human resources, software, databases and networks and communications, on the effectiveness of accounting information systems. To achieve the purposes of the study, a researcher has used a descriptive research methodology; a questionnaire has been distributed to the employees at various management and accounting positions in the bank.

The study found that the developments of ICT infrastructure, consisting of physical and human resources, software, databases and networks and communications, affects extremely the effectiveness and security of accounting information systems.
Critical Success Factors in Customer Relationship Management Strategy in the Local Government Authorities in Zimbabwe
Authors: Chiguvi Douglas , Tadu Ruramayi , Dube Zenzo
Published: November 2019

The aim of the study was to identify critical success factors in customer relationship management strategy success in the local government authorities in Zimbabwe. A thorough abridgment of the literature was conducted, mainly to understand the nature and structure of local government authorities in Zimbabwe as well as to identify critical success factors in CRM strategy success. A Meta-analysis methodology was employed and explanatory research approach was adopted by means of a survey strategy. 197 questionnaires have been collected from twenty-one local government authorities in Zimbabwe. The findings of the study revealed that all of the ten critical success factors are significant and positively linked to CRM strategy success. Furthermore, the statistical tests show that success and failure of CRM strategy success are highly dependent on four major critical success factors including Implementation Approach, Change Management, Metrics and Implementation Strategy. However, process design and Buy-in Approach and Adoption have low significance impact in CRM strategy success in local government authorities in Zimbabwe. The results of the data analysis led to the creation of a framework which outlines the critical success factors in CRM strategy success in local government authorities in Zimbabwe and the CRM implementation Index which need to be followed before implementing the CRM strategy. This study has clearly indicated that customer relationship management forms a powerful strategy that local government authorities should apply to manage long-term relationships with their key stakeholders.
IL-33 – positive or negative role in cancer progression?
Authors: Jarosz Joanna , Papiernik Diana , Wietrzyk Joanna
Published: November 2019

Interleukin-33 (IL-33) is a IL-1 family member of cytokines which binds the ST2 (suppression of tumorigenicity 2) receptor. This cytokine has a dual function. It may act both as a traditional cytokine and as an intracellular nuclear factor. IL-33 plays a role in many diseases such as: allergy, inflammatory diseases, diabetes and heart diseases. The role of IL-33 in the development of cancer has been intensively studied in recent years and researchers observe both its pro- -and anti-cancer effects. IL-33 promotes the development of tumors by affecting expression of cytokines promoting proliferation, angiogenesis, migration, matrix remodeling, the inhibition of apoptosis and recruitment of individual cells of the immune system. Antitumor action of IL-33 is carried out by recruiting and activating CD8+T lymphocytes, natural killer (NK) cells and by promoting second type immune response by the type 2 innate lymphoid cells (ILC2). Despite numerous studies on the role of IL-33 in the development of cancer, we still do not fully understand the mechanisms by which IL-33 impacts the development and malignancy of various types of cancers. This review summarizes the dual role of IL-33 in the development of the most common cancers in the world to better understand its importance in the carcinogenesis.
Snesitelná těžkost nebytí/bytí obchodního práva
Authors: Bejček Josef
Published: November 2019

Obchodní právo bylo zbaveno v roce 2012 kodexové základny svého rozvoje, podobně jako hospodářské právo v roce 1991. O struktuře a obsahu výuky právních disciplín (a ani o členění na tzv. odvětví právní) ovšem formální právní prameny nerozhodují. Výuka moderního obchodního práva proto i dnes, po opuštění konceptu samostatného práva hospodářského, zahrnuje nejen příslušné segmenty soukromoprávní civilistiky, ale věnuje se i základům veřejnoprávních regulatorních úprav vztahujících se k obchodu a podnikání. Obchody se tradičně chápou (a i vyučují) ve dvou smyslech: v užším, stavovském (subjektivním), jako právem regulovaný styk příslušníků stavu obchodnického, tedy těch, kterým právo přiznává status obchodníka (podnikatele). Druhé (objektivní) pojetí zdůrazňuje tzv. obchody, jakožto typické akty oběhu statků, k nimž dochází bez ohledu na osobní podnikatelský či nepodnikatelský status účastníků. Dílčí překrývání a doplňování s právem občanským zejména v oblasti sjednoceného práva závazkového je přínosem. Obecnějším požadavkům na nároky studia však ne vždy odpovídají některé kontroverzní okolnosti v článku vlídně kritizované.
Contemporary Renal Tumor Categorization With Biomarker and Translational Updates: A Practical Review
Authors: Taylor Alexander S. , Spratt Daniel E. , Dhanasekaran Saravana M. , Mehra Rohit
Published: November 2019

Context.—

Renal tumor classification has evolved in recent decades, as evidenced by the comparable complexity of the 2016 revision to the World Health Organization Classification of Tumours of the Urinary System and Male Genital Organs. A recent expansion of the knowledge base surrounding the cells of origin and evolutionary genomic characteristics of renal tumors has led to molecular characterization of novel entities and enriched understanding of established entities. This pace of research and its implementation into clinical practice has again begun to surpass that of our own classification schemata, with significant discoveries having been made since the introduction of the 2016 revision to the World Health Organization classification. In particular, biomarkers for renal tumor diagnosis and prognosis are in translation for future clinical application.

Objectives.—

To provide a brief framework for clinical characterization of renal tumors rooted in morphologic assessment, to briefly review the current and future status of renal tumor biomarkers with an emphasis on practical use of these ancillary tools for accurate diagnosis, and to discuss the impact of emerging technologies and clinical trials relevant to renal cell carcinoma classification and biomarker development.

Data Sources.—

We review recent literature relevant to renal tumor classification (including established and proposed entities), focusing on molecular characterization and biomarker assessment.

Conclusions.—

Accurate renal tumor diagnosis requires an up-to-date understanding of renal tumor classification, including an awareness of morphologic clues that should stimulate consideration of molecularly defined entities, as well as the ancillary biomarker testing required to confirm diagnoses.
Evolving Strategies in First-Line Chronic Lymphocytic Leukemia: Is There a Role for Chemoimmunotherapy?
Authors: Brown Jennifer R. , Wierda William G.
Published: November 2019

With the enormous progress made in treatment and management, many oncologists have called this the golden age of chronic lymphocytic leukemia (CLL). The past few years alone have seen the approval of multiple agents, including small molecule inhibitors that have led to longer, more durable periods of disease control. However, the introduction of these new drugs into the armamentarium has raised an important question regarding standard of care: is there still a role for chemoimmunotherapy in the first-line setting? At the NCCN 2019 Annual Congress: Hematologic Malignancies, Drs. William G. Wierda and Jennifer R. Brown presented opposing sides of the debate.
Fixed-Duration Versus Until Disease Progression: How Long Should Initial Treatment of Multiple Myeloma Last?
Authors: Efebera Yvonne A. , Shah Nina
Published: November 2019

The number of approved regimens for multiple myeloma has increased dramatically in recent years, improving progression-free and overall survival while also increasing the complexity of treatment decisions. Despite the plethora of options available, one fundamental treatment question remains: How long should initial therapy last? At the NCCN 2019 Annual Congress: Hematologic Malignancies, Drs. Yvonne A. Efebera and Nina Shah debated whether myeloma therapy should be time-limited or continue until disease progression.
Datos abiertos y ‘líneas de negocio’ en las administraciones públicas
Authors: Garcia Alsina Montserrat
Published: November 2019

Desde junio de 2019 tenemos una nueva directiva relativa a los datos abiertos y la reutilización de la información del sector público (Directiva (UE) 2019/1024). Esta directiva refuerza la oportunidad que tienen bibliotecas y archivos de recuperar costes derivados de preparar y gestionar datos para ponerlos a disposición de la reutilización de la información y además obtener beneficios, aplicando tarifas similares a las del mercado. Esta oportunidad ya se plasmó hace unos años en la anterior directiva del 2013, recogida, a su vez, en la Ley 18/2015. En un artículo anteriormente publicado en COMeIN indicábamos la oportunidad de abrir líneas de negocio en archivos y bibliotecas. ¿Qué ha pasado desde entonces? ¿Se ha aprovechado?
Documentales de cine para aprender
Authors: Sánchez-Navarro Jordi
Published: November 2019

La 52 edición del Sitges - Festival Internacional de Cine Fantástico de Catalunya, que se acaba de celebrar hace apenas un mes, ha sido, como cada año, un muestrario de las principales tendencias del género. Caracterizado por ofrecer las formas expresivas más arriesgadas y las mutaciones más sorprendentes de la ficción contemporánea, el festival proporciona también, en cada edición, aportaciones destacadas del campo del documental.
Peripheral blood bovine lymphocytes and MAP show distinctly different proteome changes and immune pathways in host-pathogen interaction
Authors: Kleinwort Kristina J.H. , Hauck Stefanie M. , Degroote Roxane L. , Scholz Armin M. , Hölzel Christina , Maertlbauer Erwin P. , Deeg Cornelia
Published: November 2019

Mycobacterium avium subsp. paratuberculosis (MAP) is a pathogen causing paratuberculosis in cattle and small ruminants. During the long asymptomatic subclinical stage, high numbers of MAP are excreted and can be transmitted to food for human consumption, where they survive many of the standard techniques of food decontamination. Whether MAP is a human pathogen is currently under debate. The aim of this study was a better understanding of the host-pathogen response by analyzing the interaction of peripheral blood lymphocytes (PBL) from cattle with MAP in their exoproteomes/secretomes to gain more information about the pathogenic mechanisms of MAP. Because in other mycobacterial infections, the immune phenotype correlates with susceptibility, we additionally tested the interaction of MAP with recently detected cattle with a different immune capacity referred as immune deviant (ID) cows. In PBL, different biological pathways were enhanced in response to MAP dependent on the immune phenotype of the host. PBL of control cows activated members of cell activation and chemotaxis of leukocytes pathway as well as IL-12 mediated signaling. In contrast, in ID cows CNOT1 was detected as highly abundant protein, pointing to a different immune response, which could be favorable for MAP. Additionally, MAP exoproteomes differed in either GroEL1 or DnaK abundance, depending on the interacting host immune response. These finding point to an interdependent, tightly regulated response of the bovine immune system to MAP and vise versa.
Management of Isolated Post Traumatic Radial Head Dislocation in a Child: A Case Report
Authors: Benzarti S. , A. Triki M. , Kaziz H. , Mouelhi T. , L. Ben Ayeche M. , Naouar N.
Published: November 2019

Post-traumatic dislocation of the radial head is a rare injury, generally described in the case of the Monteggia fracture associating a fracture of the ulnar diaphysis and a dislocation of the radial head.

We report an exceptional case of an isolated post-traumatic dislocation in a 6-year-old child, who presented to our emergency department following a fall from a bike with a reception on the outstretched left arm.

Clinical examination showed a swollen left elbow painful to palpation with a limited and painful range of motion of the elbow especially pronation-supination. Plain radiographs of the left elbow and forearm showed an isolated anterior dislocation of the radial head.

Reduction was carefully performed followed by an above-the-elbow cast for 4 weeks with good functional and radiological outcome. Through this case report we insist on a systematic careful interpretation of plain radiographs of the elbow in children. With these precautions, diagnosis is not overlooked and an early management is initiated when the closed reduction is still possible.
Trend in Childhood Mortality in a Private Pediatric Hospital of Kisangani: A Descriptive Study
Authors: Mande B. G. , Muyobela K. V. , Mopepe N. J. , Maturu E. , Tebandite K. E. , Falay S. D. , Batoko L. B. , Alworonga O. J. , Ngbonda D. N.
Published: November 2019

Aims: To determine patterns of childhood mortality and its trends over a 4 years’ period in a private pediatric hospital. 

Study Design: A cross-sectional descriptive study.

Place and Duration of Study: Study conducted in the Nouveau Village de Pédiatrie (NVDP), in Kisangani town, Democratic Republic of Congo, between June 2014 and June 2018.

Methodology: Socio-demographic, clinical and biological data of children of 0-16 years were retrospectively recorded. Descriptive statistics were used to analyse patterns of childhood mortality and its trends during the four years’ period.

Results: From June 2014 to June 2018, 3789 children of 0 to 16 years were hospitalised in the Nouveau Village de Pédiatrie. The global mortality was 16.1% in 2014 and 2.4% in 2018. Mortality within 24 hours of admission was 58%. Neonatal mortality decreased from 22.4% in 2014 to 7.4% in 2018. The leading diagnosis was neonatal causes: sepsis, prematurity, neonatal asphyxia, severe, congenital abnormalities. Most of older children died from severe pneumonia, meningitis, severe anaemia and severe malaria. Severe pneumonia was the most frequent and common cause of children death in all ages.

Conclusion: Microbiological data, point of care exams, high quality antimicrobials and antibiotic stewardship in antimicrobial prescribing had a great impact in the significant reduction of childhood mortality in the Nouveau Village de Pédiatrie. Efforts must be focused on the reduction of neonatal mortality.
Comparison of Caudal Block vs. Penile Block in Terms of Surgical Incision Response for Circumcision and Postoperative Analgesia Requirements
Authors: Bajwa Mohammad Asim , Rahman Aziz-Ur- , Majeed Amir , Azeem Muhammad Imran
Published: November 2019

Circumcision is a frequently performed surgery in children worldwide. For circumcision, penile and caudal epidural blocks are commonly used. Nerve blocks not only decrease the systemic analgesia requirements intra-operatively but also increase the length of pain relief postoperatively. The aim of the present study was to compare the surgical incision response in circumcision, in children with a caudal block and penile block. We also compared the systemic analgesic requirements postoperatively in both groups.

Materials and Methods: The study was conducted in pediatric patients. Total of 30 samples (n = 30) was taken and divided into two groups of 15 each. The group A received caudal block and group B received penile block. The blocks were performed after general anesthesia. We tried our best to eliminate all the factors which can lead to tachycardia (such as hypoxia, light plane of anesthesia, hyperthermia and hypothermia, hypercarbia, hypovolemia etc). The patients were keenly observed for change in heart rate on incision, the heart rates were recorded before and at incision (surgical incision response) in both groups. The postoperative consumption of the pain killers were also noted in both the groups.

Results: We observed that the patients in group A with caudal block did not show any significant surgical response, whereas in group B patients with penile block showed increased heart rate at the incision. There was no complain of pain in group A in the recovery period. Whereas complains of pain were recorded in most of the children in group B, hence pain killers were given to the patients in this group.

Conclusion: Our data proved that the caudal block was better than the penile block in terms of pain relief.
Waardenburg Syndrome: A Case Report
Authors: Sadiq Sara , Langah Azizullah , Siyal Ali Akbar , Ain Ali Noor Ul
Published: November 2019

Waardenburg syndrome is an uncommon autosomal dominant or recessive disorder, distinguished by hypopigmentation of either skin or hairs or both, segmental, partial or complete heterochromia iridis or isohypochromia, hypertrichosis of eyebrow, synophrys, dystopia canthorum, broad and high nasal root and congenital deafness. The diagnostic criteria consist of major and minor criteria; major includes congenital sensorineural hearing loss, pigmentary abnormality in iris, segmental, partial or complete heterochromia iridis, isohypochromia, fore hair’s achromia, dystopia canthorum and affected first degree relative while minor criteria include congenital leukoderma, synophrys, broad and high nasal root, hypoplasia of nasal alae and premature graying of hair.

Herein we report a case of two days old baby boy having uncommon pigmentation of hair and iris beside dystopia canthorum. He was diagnosed as a case of Waardenburg Syndrome type1 (WS1).
MENANAMKAN RASA PEDULI TERHADAP LINGKUNGAN DIMULAI DARI KECIL
Authors: Hermawan Surya , Purnomo Sentosa , Sally Patricia , Riesky Diky
Published: November 2019

Seiring perkembangan waktu, banyak orang berlomba-lomba untuk menetap di kota besar. Hal ini dikarenakan banyak yang beranggapan bahwa kehidupan di kota lebih modern dilengkapi dengan sarana dan prasarana yang lebih lengkap. Selain itu, lapangan pekerjaan yang tersedia di kota besar juga diharapkan dapat mencukupi kebutuhan mereka. Namun, tanpa disadari akan muncul masalah baru. Tingginya aktivitas urbanisasi tidak dapat diimbangi dengan pertambahan lahan yang terbatas. Sehingga terbentuk permukiman baru di pinggiran kota dan mayoritas dengan memanfaatkan lahan yang sempit sehingga tidak memenuhi persyaratan kesehatan dan muncul masalah kebersihan. Contohnya, dalam hal sampah. Masyarakat seringkali membuang sampah di selokan ataupun kali kecil karena kurangnya kesadaran untuk menjaga kebersihan, disebabkan karena kurangnya pendidikan mengenai kepedulian dan memang kurang tersedianya fasilitas tempat sampah. Hal ini yang menjadi dasar dan tujuan dari diadakannya pengabdian masyarakat bermetode service learning, yaitu untuk membantu masyarakat yang membutuhkan dan mengajak mereka untuk meningkatkan rasa kepedulian terhadap orang lain dan lingkungan. Kegiatan ini berlokasi di daerah Kelurahan Putat Jaya, Surabaya yang sebelumnya merupakan daerah lokalisasi Dolly. Kegiatan ini sendiri bertujuan untuk mengenalkan anak-anak mengenai lingkungan yang bersih dan sehat guna menumbuhkan rasa peduli terhadap lingkungan dimulai dari usia dini. Ada beberapa metode yang dilakukan, di antaranya adalah mengajak anak-anak kelas 1-3 SD untuk berpartisipasi dalam lomba mewarnai, anak-anak kelas 4-6 SD lomba menghias tempat sampah, dan 4 kolam lele yang diberikan untuk masyarakat setempat. Hasil dari kegiatan ini sesuai dan menjawab tujuan awal dari kegiatan, yaitu menumbuhkan dan meningkatkan rasa peduli terhadap sesama dan lingkungan.
PKM PEMBERDAYAAN KELOMPOK USAHA KERIPIK MANGROVE DESA TAMBAKREJO, SUMBERMANJING WETAN, KABUPATEN MALANG
Authors: Firdaus Riril Mardiana , Kusufa Roni Alim Ba’diya , Dwanoko3 Yoyok Seby
Published: November 2019

Mangrove berfungsi sangat strategis dalam menciptakan ekosistem pantai yang layak untuk kehidupan organisme air dan darat. Mangrove memiliki fungsi fisik dan biologis, dan nilai ekonomi yang sangat tinggi. Fungsi fisik mangrove adalah untuk menahan abrasi pesisir, menjaga garis pantai dan limbah filter. Fungsi ekologi mangrove adalah sebagai ikan, kepiting dan bertelur terestrial. Sementara itu, mangrove ekonomi memiliki nilai ekonomi yang sangat tinggi. Jenis mangrove jeruju, daunnya dapat digunakan sebagai bahan baku untuk keripik. Tujuan dari pengabdian ini adalah untuk memberdayakan masyarakat dusun Sendangbiru dalam meningkatkan: (1) produksi keripik mangrove (2) Kemasan dengan desain berlabel stiker (3) memperluas pemasaran dan (4) pengelolaan keuangan hasil bisnis. Pengabdian ini berlangsung di rumah mitra, Jl. Lintas Kalipal RT 30, desa Tambakrejo, Kecamatan Sumbermanjing Wetan, Kabupaten Malang. Metode yang ditawarkan dalam program kemitraan masyarakat (PKM) ini adalah: (1) sosialisasi, pelatihan, dan bantuan dalam meningkatkan produksi keripik mangrove dengan peralatan produksi yang sesuai. (2) pelatihan dan bantuan dalam pembuatan kemasan chip mangrove dengan stiker label dan desain segel elektrik sehingga Kemasan lebih menarik dan tidak rentan terhadap kebocoran (3) Bantuan pelatihan dan pemasaran melalui media online, (4) pelatihan dan manajemen keuangan untuk hasil bisnis. Sebagai hasil dari program kemitraan masyarakat, mitra dapat: (1) meningkatkan jumlah produksi chip mangrove dengan baik, (2) membuat kemasan chip mangrove dengan desain label stiker dan kemasan menggunakan siller listrik, (3) Perluasan jaringan pemasaran melalui media online, dan mengelola hasil keuangan operasi dengan baik.
PEMBERDAYAAN KARANG TARUNA DALAM MELAKSANAKAN AKTIVITAS OUTBOUND DI LEMBAH BENCIRANG - DESA KEBONTUNGGGUL
Authors: Tarigan Zeplin Jiwa Husada , Andilas Devi Destiani
Published: November 2019

Pemberdayaan karang taruna desa dapat meningkatkan kesejahteraan masyarakat melalui kegiatan pelatihan kemampuan dan keterampilan. Jenis kegiatan pemberdayaan yang diberikan kepada karang taruna disesuaikan dengan potensi-potensi yang dimiliki desa setempat. Hasil identifikasi menunjukkan bahwa desa setempat berpotensi sebagai tempat penyelenggaraan kegiatan outbound. Kesimpulan potensi tersebut diambil dari hasil identifikasi potensi outbound di desa Kebon Tunggul berupa kolam renang, aliran sungai, hutan, bukit-bukit, goa, sawah, serta lapangan luas yang dapat dipergunakan untuk camping. Pelatihan outbound yang dilaksanakan dalam rangka pemberdayaan karang taruna mendapat respon sangat baik dari karang taruna selaku peserta pelatihan. Hal tersebut ditunjukkan melalu nilai umum kepuasan peserta terhadap materi pelatihan sebesar 4.4153 serta nilai umum kepuasan peserta terhadap performance instruktur outbound (pemateri) dalam menyampaikan materi pelatihan sebesar 4.4091. Peserta puas dikarenakan materi pelatihan membuat mereka mampu melaksanakan outbound secara mandiri, tercermin melalui nilai tertinggi indikator kepuasan materi pelatihan yaitu sebesar 4.5625. Tidak hanya itu, pesertapun semakin memahami pentingnya aspek keselamatan dalam pelaksanaan kegiatan outbound yang diperlihatkan melalui nilai 4.4448.
In-Office Suprachoroidal Viscopexy for Acute Rhegmatogenous Retinal Detachment
Authors: Muni Rajeev H. , Melo Isabela Martins , Demian Sueellen , Minelli Tomas , Batawi Hatim , Park John , Pecaku Aurora
Published: December 2024

Importance

In-office suprachoroidal viscopexy (SCVEXY) is a relatively new procedure for rhegmatogenous retinal detachment (RRD), but minimal information is available regarding outcomes and safety.

Objective

To report outcomes with in-office SCVEXY for primary acute RRD.

Design, Setting, and Participants

This retrospective case series was conducted at St Michael’s Hospital in Toronto, Ontario, Canada from June 2023 to February 2024 among consecutive patients with primary acute RRDs who presented with retinal tears that were reachable with the current in-office SCVEXY technique in the temporal or nasal retina.

Exposure

Suprachoroidal injection of 0.6 mL of sodium hyaluronate, 2.3%, at the break location using a 30-gauge needle with a custom-made guard leaving 1 mm of the needle exposed. Laser retinopexy was applied around the break once reattachment was achieved.

Main Outcome and Measures

The primary outcome was primary anatomic reattachment rate with SCVEXY and recovery of function and anatomic integrity.

Results

Among 6 patients, 2 patients (33.3%) were female, and mean (SD) patient age was 52.5 (19.7) years. The final follow-up duration for each patient was 510, 420, 360, 360, 330, and 320 days, respectively. Baseline VAs were hand motions, counting fingers, 20/100, 20/100, 20/25, and hand motions for patients 1 through 6, respectively. A dome-shaped suprachoroidal buckle was present in all cases after the procedure. Five of 6 patients (83.3%) achieved anatomic reattachment with no retinal displacement or outer retinal folds, and these patients could resume normal activity immediately after the procedure with no restrictions. The mean (SD) logMAR VA at 3 months was +0.46 (0.34) (Snellen 20/57). The viscoelastic persisted in the suprachoroidal space as confirmed by multimodal imaging for 10, 14, 21, 13, 24, and 14 days, respectively, and the retina remained attached during the entire postoperative follow-up period. One patient’s SCVEXY failed due to inadequate viscoelastic at the posterior edge of the retinal break, and this patient underwent a successful pneumatic retinopexy. One patient developed a localized choroidal effusion unrelated to the SCVEXY site following laser retinopexy that resolved in 1 week associated with topical prednisolone, 1%, 4 times daily and cyclopentolate, 1%, twice daily.

Conclusions and Relevance

In this case series, the outcomes of these 6 cases suggest that SCVEXY may offer durable retinal reattachment in RRD. However, randomized clinical trial data, larger sample sizes, and longer-term follow-up are necessary to assess the risk-benefit profile of SCVEXY compared with the standard of care.
Chebyshev Filters
Authors: de Queiroz Antônio Carlos M.
Published: December 2024

In the filter approximation theory, a fundamental subject in signal processing, Chebyshev filters are polynomial approximations characterized by uniform ripple in the passband attenuation and monotonically increasing stopband attenuation. A variation are the inverse Chebyshev filters, characterized by maximally flat passband attenuation and uniform ripple in the stopband attenuation. The article shows the characteristics of these approximations, the derivation of the poles and zeros of their transfer functions in Laplace transform, and presents explicit formulas for the element values of direct Chebyshev low‐pass LC ladder filters. Useful variations of the approximations are also discussed.
Multipliers
Authors: H. Tran Hung , G. Thomas Douglas , R. Branner George , B. Kumar Preetham , Yuk Kelvin S.
Published: December 2024

This section presents the design techniques for single‐ended frequency multiplier designs. These techniques incorporate reflector networks providing excellent performance characteristics, which include effective conversion gain and harmonic suppression as demonstrated by the results. These results show the improvement in conversion gain using reflector networks with proper phase angles on the input and output networks simultaneously, which are useful for narrow‐ and wideband applications. Because of bandwidth constraints imposed by the use of single stubs, incorporating filters into the designs achieves bandwidth extension and improves harmonic suppression. This improvement in bandwidth and harmonic suppression, however, comes at the expense of conversion gain, as shown by the wideband designs. Another advantage of these designs is that they are single ended, thus alleviating the requirement for complex baluns or transformers.
Ring Resonators and Circuits
Authors: Hsieh Lung‐Hwa , Chang Kai
Published: December 2024

Because of their advantages of low cost and easy fabrication, ring resonators are used in many applications such as filters, oscillators, mixers, baluns, hybrids, magic Ts, couplers, and antennas. In addition, they have been successfully used to measure the phase velocity and dispersion of a microstrip line. This chapter explains the basic field and circuit model analyses that can be used to investigate the characteristics of a ring resonator. On the basis of these analyses, ring resonators can be implemented and designed for different devices. The simple structure and high performance of a ring circuit fulfill the highly desired requirements of many modern wireless systems and other applications.
The Influence of Filler Shape on the Microwave Absorptions of Polyethylene Composites with High Ferroalloy Powder Content
Authors: Li Mingzhan , Li Yang , Cheng Haoran , Chen Qiang , Liu Chuntai , Shen Changyu , Liu Xianhu
Published: December 2024

The ferroalloy powder (FeP) with remarkably high‐magnetic permeability and high‐temperature stability has attracted much attention for its potential application in the field of radar stealth. However, achieving high stealth performance in different frequency bands by controlling the shape of iron alloys remains a major challenge. Herein, FeP‐filled high‐density polyethylene composites with different FeP shapes by hot pressing are prepared. This work employs a straightforward vacuum hot‐pressing molding technique to analyze the electromagnetic wave absorption property of composite materials utilizing two distinct forms of FeP as different fillers. It is noted that composites filled with 75 wt% spherical FeP with excellent impedance matching exhibit a minimum reflection loss (RLmin) of −60.75 dB at 12.23 GHz with a thickness of 2.55 mm, and a maximum effective absorption bandwidth of 8.31 GHz at 2.5 mm. While high‐density polyethylene composites filled with 75 wt% flaky FeP obtain the RLmin value at a low frequency of 2 GHz because of the high magnetic loss. This work provides a guideline for developing applications of FeP‐filled composites with different shapes.
Inhibiting Ion Migration and Oxidation in Sn–Pb Perovskite by Multidentate Chelating Additive Strategy
Authors: Ma Tianjun , Zhao Xinzhao , Yang Xuke , Yan Jun , Luo Dingfu , Li Mingyu , Li Xiong , Chen Chao , Song Haisheng , Tang Jiang
Published: December 2024

Currently, all‐perovskite tandem solar cells have achieved power conversion efficiencies exceeding 29%. The further improvement is limited by mixed Sn–Pb narrow‐bandgap perovskite subcells. The facile oxidation of Sn2+ to Sn4+ poses an inherent challenge that limits the efficiency and stability of Sn–Pb perovskite solar cells. In this study, a multi‐dentate chelating additive, 3‐amino‐2‐chloroisonicotinamide (ACPC), is developed. Its amino group could anchor I− of the perovskite lattice by hydrogen bonds, thereby preventing I− migration and oxidation. On the other hand, the carbonyl group of ACPC as a Lewis base group could coordinate with Sn2+, effectively protecting Sn2+ from oxidation. Ultimately, the multi‐dentate chelating effect of ACPC helps to suppress the oxidation of Sn–Pb perovskite and its related nonradiative recombination. The resulting Sn–Pb perovskite solar cells obtain a top power‐conversion efficiency (PCE) of 23.09% and a high open‐circuit voltage (VOC) of 0.902 V while the control values only reach 19.11% and 0.825 V. As a result of the improved performance of the Sn–Pb perovskite solar cells, the corresponding all‐perovskite tandem solar cells achieve a PCE of 27.60%, retaining 85.7% of initial PCE after 500 h continuous 1 sun illumination.
The Cubic B20 Chiral Magnet FeGe
Authors: Wang Kang , Wei Wensen , Du Haifeng
Published: December 2024

The cubic B20 chiral magnet FeGe has garnered significant attention for its exceptional capacity to host topological skyrmions. These skyrmions are not only compact, with dimensions ≈80 nm, but also display exceptional stability near room temperature. Moreover, high‐quality cubic FeGe single crystals and nanostructures are successfully fabricated. These characteristics make cubic FeGe an intriguing material for the investigation of topological magnetism and its potential applications in spintronics. Recognizing the critical role that cubic FeGe plays in the field of magnetism, this review delves into the material, emphasizing the synthesis methods for FeGe single crystals and nanostructures, as well as the distinctive features of the topological magnetic structures they support. This study particularly highlight the progress in controlling the magnetic structures for device applications. The electric controllability of topological skyrmions in FeGe nanostructures is discussed as a pivotal step toward the development and application of skyrmionic devices.
Upscaling Preparation of Poly(Biphenyl‐Trifluoroacetophenone) Hollow Fiber Loose Membranes for High‐Efficiency Dye/Salt Separation
Authors: Li Chong , Luo Yicheng , Liu Ning , Zhu Aimei , Liu Qinglin , Lin Zhen , Zhang Qiugen
Published: December 2024

With increasing water scarcity, high‐salt wastewater recovery is gaining more attention. To this end, high efficiency hollow‐fiber‐type loose nanofiltration (HF‐LNF) membranes have recently emerged. However, most conventional polymeric membranes are limited to the laboratory stage due to material‐specific complexities and low permeance. Herein, a straightforward synthesis strategy is presented for the lab‐scale kilogram production of poly(biphenyl‐trifluoroacetophenone) (PBT) polymer and a one‐step spinning process for the pilot‐scale (650 m length) PBT HF‐LNF membranes. Due to the slight hydrophobicity and high molecular weight of linear PBT polymer, as well as the addition of hydrophilic additives, the thermodynamic stability becomes lower, resulting in the formation of uniform 1 nm micropores. These micropores induce selective rejections for dye (>99.9%) and salt (<5%), thereby enabling effective dye/salt deep separation. The permeance is also enhanced greatly (97.3 L m−2 h−1 bar−1), approximately five times higher than most reported HF‐LNF membranes and commercial nanofiltration membranes. This upscaling strategy bridges lab research and industrial production, potentially advancing HF‐LNF technology.
60‐Second Preparation of High‐Entropy Selenides: Suppressing Polyselenides Shuttling for Long‐Cycle‐Life Sodium‐Ion Batteries
Authors: Qu Dong‐Yang , Li Qiu‐Yu , Sun Zhong‐Hui , Wei Chun‐Yan , Gu Zhen‐Yi , Zhao Xin‐Xin , Zhao Bo‐Lin , Han Dong‐Xue , Niu Li , Wu Xing‐Long
Published: December 2024

Metal selenides with excellent electronic conductivity and high theoretical capacity present great superiority as alternative anodes in sodium ion batteries (SIBs). However, they face huge challenges such as severe sodium polyselenides shuttling and slow sodium ion diffusion kinetics. To address these issues, entropy regulation strategy is employed to optimize the presence of Se vacancies and successfully prepared NiCoFeMnCr/CNTs (HE‐MSe/CNTs) rich in Se vacancies. This material enhances the adsorption energy for shuttle compounds like Na2Se2 and Na2Se4, effectively limiting the dissolution of polyselenides and improving the diffusion kinetics of sodium ions as well as the structural thermodynamics of the NaxHE‐MSe/CNTs adsorption phase. Experimental results indicate that HE‐MSe/CNTs achieve a highly reversible sodium storage process involving intercalation and conversion reaction mechanisms. This enables a superior rate capability of 400.4 mAh g −1 at a high current density of 5 A g−1, and long‐term durability with 90% retention after 1000 cycles at 1 A g−1. Therefore, utilizing entropy regulation to customize vacancy formation provides new insights and methods for enhancing the performance of SIB anodes.
Dynamic Restructuring of Asymmetric Built‐in Electric Field Catalysts Facilitates the Efficient Water Splitting
Authors: Ma Wansen , Zhang Yuhan , Hu Liwen , Lv Xuewei , Dang Jie
Published: December 2024

Efficient and stable bifunctional catalysts for hydrogen and oxygen evolution reaction play an important role in realizing hydrogen economy. In this study, the multi‐heterogeneous interfacial catalyst, Ni2P@FeP@Co2P (denoted as NFC), with an asymmetric built‐in electric field is successfully designed and synthesized. Benefiting from the double charge balance effect, NFC exhibits superior hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) catalytic activity. Importantly, the NFC‐assembled anion‐exchange membrane (AEM) electrolyzer exhibits enhanced performance and remarkable stability at industrial current densities and high temperatures, reaching a current density of 1000 mA cm−2 at the small voltage of 1.95 V. The results of the dynamic X‐ray photoelectron spectroscopy tests indicate that the self‐reconfiguration of the NFC during OER provides additional active sites for the reaction. The density functional theory (DFT) results demonstrate that the asymmetric built‐in electric field (BIEF) induces an adaptive distribution of charge, which optimizes the adsorption and desorption of hydrogen/oxygen intermediates during the reaction, thereby enhancing the catalytic kinetics of the overall water splitting process. This work presents novel strategies for the design of highly active catalysts in the field of energy conversion.
3D Heterogeneous Sensing System for Multimode Parrallel Signal No‐Spatiotemporal Misalignment Recognition
Authors: Li Linlin , Xu Hao , Li Zhexin , Zhong Bowen , Lou Zheng , Wang Lili
Published: December 2024

The spatiotemporal error caused by planar tiled structure design and the waste of communication resources brought on by the transmission of a single channel are two challenges facing the development of multifunctional intelligent sensors with high‐density integration. A homo‐spatiotemporal multisensory parallel transmission system (HMPTs) is expanded to realize multisignal no‐spatiotemporal misalignment recognition and efficient parallel transmission. First, this system optimizes the distribution of multifunctional sensors, completes the 3D vertical heterogeneous layout of four sensors, and achieves material multi‐information detection at a single place with no‐spatiotemporal deviation. Additionally, the system couples and transmittes multiple sensory signals, delivering a fourfold increase in transmission efficiency and one‐third of the power consumption compared to a single‐channel transmission system. Finally, this system is used for the recognition of mixed materials, and human‐computer interaction to realize the assignment of materials in VR, demonstrating the great accuracy and transmission efficiency of HMPTs as well as its feasibility in practical application. This is an a priori effort to enhance machine perception accuracy, improve signal transmission effectiveness, and advance human‐machine‐object triadic integration.
Engineered Mesenchymal Stem Cell‐Derived Extracellular Vesicles Scavenge Self‐Antigens for Psoriasis Therapy via Modulating Metabolic and Immunological Disorders
Authors: Zhou Xin , Tang Bo , Huang Qing , Yang Siyu , Jiang Yang , Xu Lizhou , Chen Wen , Shan Guangchang , Liao Xuankai , Hou Chongchao , Yao Zhihong , Zou Chaowei , Ou Rongying , Xu Yunsheng , Li Danyang
Published: December 2024

Psoriasis is a chronic inflammatory dermatosis driven by excessive activation of the immune system. Recent studies have demonstrated the therapeutic potential of mesenchymal stem cell‐derived extracellular vesicles (MSC‐EVs) to psoriasis because of their immunomodulation functions. Yet, the outcome of MSC‐EVs alone is still unsatisfactory and the underlying mechanisms are also unclear. Here, it is uncovered that arginase1 (Arg1)/polyamine is overexpressed in psoriasis patients and murine, inducing the in‐situ accumulation of self‐antigens. Engineered nor@MSC‐EVs are fabricated by loading Arg1 inhibitor nor‐NOHA into MSC‐EVs for studying the therapeutic effect and mechanism of psoriasis. The nor@MSC‐EVs exhibited profound suppression of the NF‐κB signaling pathway by targeting Arg1/polyamine‐mediated DCs/Th17 axis through scavenging self‐antigens, resulting in superior mitigation of skin lesions and modulation of local and systemic metabolic and immunological disorders compared to the MSC‐EVs and clinically used anti‐IL17A both in vitro and in vivo. Together, the results highlight a novel perspective for psoriasis therapy by nor@MSC‐EVs with broad clinical translational potential.