bluuebunny/crossref_metadata_2025 huggingface dataset:
LEI MARIA DA PENHA E SUA EFETIVIDADE NA PROTEÇÃO À MULHER EM SITUAÇÃO DE VIOLÊNCIA
Authors: CARDOSO PONTES EDILENE
Published: August 2023

Este artigo científico tem por objetivo apresentar as principais evoluções legislativas trazidas pela Lei 11.340/2006, bem como os principais problemas que dificultam sua aplicação, e fazer recomendações em resposta a esses problemas. A Lei Maria da Penha é muito clara em sua arte. A primeira é a razão de sua existência, pois passa a reprimir e, ao mesmo tempo, instaurar mecanismos para coibir e prevenir a violência doméstica contra a mulher prevista no artigo 226, § 8º da Constituição Federal. Para tanto, antes de mais nada, analisou-se a lei e os seus meios que têm avançado no tratamento da violência doméstica e os diferentes mecanismos instituídos para coibir esta prática, culminando na questão da aplicação da legislação. Os métodos utilizados para atingir os objetivos do trabalho foram a pesquisa exploratória e a análise bibliográfica por meio de consulta a diversas fontes como leis, livros, artigos, periódicos. A conclusão final foi que a promulgação da lei Maria da Penha trouxe inúmeras inovações e muitas melhorias, mas ainda encontra muitas dificuldades em sua aplicação.
Implementasi Peraturan Pemerintah No 71 Tahun 2010 di Kabupaten Kulonprogo
Authors: Sugiyarto Sugiyarto , Fathah Rigel Nurul
Published: August 2023

This study aims to determine the application of accrual-based SAP and constraints in the preparation of the Regional Government Financial Report in accordance with the accrual-based SAP based on Government Regulation No. 71 of 2010 in Kulonprogo Regency. The results showed that the Kulonprogo Regency Government had applied PP No. 71 on accrual basis in the preparation of local government financial reports. The obstacle when preparing the financial reporting of the local government lies in the weakness of human resources in some SKPD because the accounting officer is not from the background of Accounting, but the BKAD and the Kulonprogo Regional Government always accompany the preparation of financial reporting simultaneously and sustainably. An indicator of the success of the application of PP No. 71 on an accrual basis is proven by the statement of the Supreme Audit Board that is Fair without Exception from 2014 to the present. The implication of the research in the form of suggestions for the Kulonprogo Regional Government is the need to recruit employees who have expertise in regional accounting to manage the Accounting Section in several SKPD so that the recording and financial reporting of the Kulonprogo Regional Government can be carried out well and maintain performance in order to keep getting an audit opinion that is Fair without Exception for Local Government Financial Reporting.
Model Rancangan Bimbingan Kelompok dengan Menggunakan Metode Role Playing dalam Membantu Pencapaian Tugas Perkembangan Peserta Didik (Studi Deskriptif Analisis kelas XI IPS 1 di SMAN 2 Padang Panjang)
Authors: Wahyudi Rahmad , Kasih Fitria , Triyono Triyono
Published: August 2023

Penelitian ini dilatarbelakangi adanya tugas perkembangan peserta didik yang belum tercapai dan masih adanya Guru Bimbingan Koseling yang belum menggunakan metode yang bervariasi dalam melaksanakan bimbingan kelompok. Tujuan penelitian ini adalah mendeskripsikan: 1).Profil pencapaian tugas perkembangan peserta didik, 2).Pelaksanaan bimbingan kelompok oleh guru BK mengunakan metode role playing. 3).Model rancangan layanan bimbingan kelompok dengan menggunakan metode role playing dalam membantu pencapain tugas perkembangan peserta didik. Penelitian ini dilakukan dengan menggunakan mixed method. Teknik pengambilan sample menggunakan purposive sampling dengan 35 partisipan. Sedangkan penelitian kualitatif, informan kunci penelitian yaitu 1 Guru Bimbingan Konseling  kelas XI IPS 1 dan 2 orang informan tambahan . Instrumen yang di gunakan yaitu Iventori Tugas Perkembangan (ITP) dan pedoman wawancara. Teknik analisis data menggunakan media Iventori Tugas Perkembangan (ITP). Teknik yang digunakan dalam pengolahan data menggunakan ATP. Untuk analisis data kualitatif  melalui reduksi data, penyajian data dan penarikan kesimpulan. Berdasarkan hasil  penelitian ditemukan bahwa masih adanya peserta didik tugas perkembangan belum tercapai dan pelaksanaan BKP masih diskusi saja.  Model rancangan layanan bimbingan kelompok dengan menggunakan metode role playing dalam membantu pencapain tugas perkembangan peserta didik disusun berdasarkan data pencapaian tugas perkembangan  dan pelaksanaan bimbingan kelompok oleh guru BK. Dari hasil penelitian ini maka dapat di rekomendasikan agar Guru BK bisa melakukan bimbingan kelompok dengan menggunakan beberapa teknik yang terdapat di Bimbingan dan Konseling.
SARANA DAN PRASARANA PENDIDIKAN DI RA FARDAHILLAH
Authors: Ansari Ulvia Nisa , Sari Tina Alfina , Sari Juwita , Cantika Cantika , Nasution Fauziah
Published: August 2023

Sarana dan prasarana merupakan salah satu bagian dari manajemen yang ada di lembaga pendidikan, sarana dan prasarana mempunyai peran yang sangat penting dalam suatu organisasi, institusi ataupun lembaga pendidikan. Standar sarana dan prasarana meliputi, kelengkapan, jenis, serta kualitas fasilitas yang dipakai dalam proses penyelenggaraan sekolah Pendidikan Anak Usia Dini. RA Fard Ahillah merupakan lembaga Pendidikan Anak Usia Dini yang memiliki fasilitas sarana dan prasarana yang cukup memadai dan ada juga yang belum terpenuhi. Tujuan penelitian ini untuk mengetahui kondisi dan kelengkapan sarana prasarana yang ada di sekolah tersebut. Penelitian ini menggunakan metode observasi dan dokumentasi dengan pendekatan kualitatif. Hasil data menunjukkan bahwa Pengembangan sarana prasarana di taman kanak-kanak sangat penting dalam mendukung proses pembelajaran dalam upaya stimulasi anak usia dini yang sesuai dengan tahap anak.
PERAN GURU DALAM MENINGKATKAN KOMPETENSI SOSIOEMOSIONAL PADA SISWA DENGAN LATAR BELAKANG SOSIAL BERBEDA
Authors: Nasution Fauziah , Humayrah Ulysa , Nisa Khairun
Published: August 2023

Penelitian ini bertujuan untuk menginvestigasi peran guru dalam meningkatkan kompetensi sosioemosional pada siswa dengan latar belakang sosial berbeda. Kompetensi sosioemosional merupakan aspek penting dalam perkembangan holistik siswa, yang mencakup keterampilan sosial, emosi, dan perilaku adaptif. Latar belakang sosial yang berbeda dapat memengaruhi kemampuan siswa dalam mengembangkan kompetensi sosioemosional mereka.
MENINGKATKAN PERILAKU ASERTIF MELALUI LAYANAN BIMBINGAN KELOMPOK
Authors: Hadomuan Siregar Bahrum Reski
Published: August 2023

Penelitian yang telah dilakukan berjudul Meningkatkan Perilaku Asertif Melalui Layanan Bimbingan Kelompok, yang dilatarbelakangi bahwa perilaku asertif seharusnya ada pada diri anak bangsa atau penerus bangsa, dengan adanya perilaku asertif pada diri mereka, maka mereka lebih bisa mengungkapkan perasaan mereka, tidak merasa kesulitan, bisa berkomunikasi dengan baik, terbuka, percaya diri dan lebih jujur. Jalan yang bisa dilakukan untuk meningkatkan perilaku asertif mereka adalah dengan memberikan layanan bimbingan kelompok, dengan bimbingan kelompok tersebut mereka bisa lebih memahami diri mereka, mengarahkan diri dan bertindak sesuai dengan arahan sekolah atau bisa memiliki perilaku asertif.

Metode penelitian ini adalah metode eksperimen. Dengan memilih sample sebanyak 17 siswa dan membaginya menjadi dua kelompok, yaitu 8 siswa menjadi kelompok eksperimen dan 9 siswa menjadi kelompok kontrol. Peneliti akan melakukan pre test kepada kedua kelompok. Kelompok eksperimen akan menerima treatment atau perlakuan yaitu layanan bimbingan kelompok. Setelah itu peneliti kembali meberikan post test kepada kedua kelompok. alat pengumpulan data yang digunakan yaitu angket atau kuesioner untuk mengukur skala asertivitas siswa kelas VIII di SMP N 1 Barumun Tengah.
UPAYA GURU BIMBINGAN KONSELING DALAM MENGATASI STRESS AKADEMIK SISWA SELAMA PEMBELAJARAN DI MTS SWASTA AL-ITTIHAD AEK NABARA KABUPATEN LABUHANBATU
Authors: Pane Rizky Khoir Apriansyah , Mahidin Mahidin , OK Azizah Hanum
Published: August 2023

Jenis penelitian dalam skripsi ini adalah penelitian lapangan dengan pendekatan kualitatif, yaitu prosedur penelitian yang mengahasilkan data deskriptif berupa ucapan atau tulisan dari perilaku yang dapat diamati dari orang-orang. Tujuan Penelitian ini adalah untuk mengetahui upaya guru bimbingan konseling dalam mengatasi stress akdemik siswa selama pembelajaran di mts swasta al ittihad aek nabara kabupaten labuhanbatu. Untuk mengetahui gambaran stress akademik siswa selama pembelajaran di mts swasta al ittihad aek nabara kabupaten labuhanbatu. Untuk mengetahui implikasi pelayanan guru bimbingan konseling dalam menangani stress akademik siswa selama pembelajaran mts swasta al ittihad aek nabara kabupaten labuhanbatu. Upaya merupakan bagian dari peranan yang harus dilakukan oleh seseorang untuk mencapai tujuan tertentu. Kontrol diri merupakan suatu sikap tentang bagaimana seorang individu dapat mengendalikan emosi yang ada pada diri mereka serta dorongan-dorongan yang menyertainya. Pembentukan kontrol diri dapat dipengaruhi oleh beberapa hal baik karena faktor genetik maupun faktor lainnya. Usia juga mempengaruhi kondisi kontrol diri pada individu. Hasil penelitian menunjukkan Upaya yang dilakukan guru BK ialah menciptakan lingkungan yang kondusif, terdapat program Pelatihan penanggulangan stress, dan mengembangkan resilensi pendidikan. Macam-macam stress yang didapatkan Siswa ialah tuntutan tugas, tuntutan peran, tuntutan interpersonal. Implementasi dalam bimbingan layanan sekolah ialah layanan informasi, layanan konseling individu, layanan bimbingan kelompok, layanan konseling kelompok.
AJIA, Volume 13, n° 1 & 2, 2010 - Full Issue
Authors: Journal system
Published: August 2023

Contents 

The Niger Delta Crisis: A Focus on Post-Amnesty Militancy and National Security

Otojieh Chukwuemeka Ojione ........................................... .......... 1

The Complex Roots of the Second Eritrea-Ethiopia War: Re-Examining the Causes

Redie Bereketeab....................................................................... 15

Nigeria-China Economic Relations Under the South-South Cooperation

Samuel O. Udeala ....................................................................... 61

Avoiding the Oil Curse in Ghana: Is Transparency Sufficient?

Franklin Obeng-Odoom..............................................................89

United States Foreign Policy and the Second Liberian Civil War

George Klaty Kieh, Jr.................................................................121
Avoiding the Oil Curse in Ghana: Is Transparency Sufficient?
Authors: Franklin Obeng-Odoom
Published: August 2023

This article assesses measures put in place by the government of Ghana to manage Ghana’s newly found oil. It uncovers two actors – the people in the ‘oil communities’ and the oil companies – that have been ‘forgotten’ by the government and yet are critical to unlocking the so-called ‘oil blessing’. It is argued that the existing policies do not sufficiently accountfor the peculiar needs of the communities in which oil will be drilled. The existing policy paradigm implies that the activities of the oil companies might set in motion corrupt practices among public officials and worsen the plight of the poor.
United States Foreign Policy and the Second Liberian Civil War
Authors: George Klay Kieh, Jr
Published: August 2023

After about three years following the end of its first civil war in 1996, Liberia was again plunged into another civil war, when the Liberian United for Reconciliation and Democracy (LURD), a group of rebels, attacked the country from neighbouring Guinea. The efforts by the Taylor regime to repel the attack occasioned a full-scale war. Initially, the war was confined to the western and north-western portions of the country. But, by early 2003, LURD’s forces had advanced to the outskirts of Monrovia, the capital city. For the initial four years of the war, the United States displayed a nonchalant attitude. This was because Liberia was no longer of any strategic value to the US. Also, given the adversarial relationship between the Taylor regime and Washington, the latter thus had no empathy for the former. However, amid the escalation of the war and its attendant adverse consequences, especially the death of hundreds of civilians, ECOWAS, the AU, the EU, the UN and various actors within the American domestic setting, including Liberian Diaspora Groups, pressured the Bush administration to join the efforts to end the carnage. Consequently, the Bush administration obliged. After an ECOWAS-brokered agreement that led to the resignation of President Taylor and his subsequent departure to Nigeria in exile, the United States intervened by supporting ECOWAS’ peacekeeping operation. Against this backdrop, this article has interrelated purposes. First, it examines the nature and dynamics of American intervention in the second Liberian civil war. Second, it discusses the impact of the American intervention on the civil war. Third, it maps out the emerging trajectory of US–Liberia relations in the post-Taylor era. Fourth, it proffers ways of rethinking the relationship so that it would be mutually beneficial.
The Niger Delta Crisis: A Focus on Post-Amnesty Militancy and National Security
Authors: Ojieh Chukwuemeka Ojione
Published: August 2023

The government-sponsored Amnesty Programme for militants disrupting oil production in the Niger Delta region of Nigeria has resulted in relative peace in the area. Consequently, Nigeria’s oil production which dropped from 2.6 million barrels a day to about 1 million at the peak of the Niger Delta crisis between 2006 and 2009 has now risen to 2.1 million barrels daily. But recent events have raised doubts as to whether Amnesty Programme can tame the monster of militancy in the Niger Delta. This is because post-amnesty militancy has assumed even more frightening dimensions. The twist in the current wave of militancy, which now extends the battle outside the creeks, going upland and sometimes to the seats of government, portends a larger threat to the nation’s security. This article submits that the olive branch, which the Amnesty Programme presents, would not sufficiently assuage the restive minds in the region. This is because anything short of owner-control or at least owner-participation in the management of the resources of the Niger Delta region would remain mere palliatives.
Uji Antioksidan Ekstrak Etanol Bunga Telang (Clitoria ternatea L.) dan Formulasi Salep pada Penyembuhan Luka Sayat Punggung Kelinci Putih New Zealand
Authors: Hotimah Khusnul , Iswandi Iswandi , Widyasti Jena Hayu
Published: August 2023

Bunga telang (Clitoria ternatea L.) memiliki efek antioksidan karena mengandung senyawa seperti fenol, antosianin, glikosida flavonol, glikosida kenferol, terpenoid, steroid, flavonoid, dan tanin. Penelitian ini bertujuan untuk mengetahui apakah ekstrak etanol bunga telang memiliki aktivitas antioksidan, mengetahui apakah salep ekstrak etanol bunga telang dapat menyembuhkan luka sayat pada kelinci dan mengetahui konsentrasi efektif salep ekstrak etanol pada bunga telang untuk penyembuhan luka sayat pada kelinci. Penelitian ini menggunakan ekstrak bunga telang yang dimaserasi dengan etanol 70%. Konsentrasi ekstrak dibuat sebanyak 3 yaitu 0,1%, 0,2%, 0,4 %. Ekstrak diuji aktivitas antioksidan menggunakan metode DPPH. Ekstrak yang sudah diuji lalu dibuat salep dan diaplikasikan pada punggung kelinci, kemudian diamati kesembuhan luka. Berdasarkan hasil uji statistik menggunakan SPSS® variasi konsentrasi ekstrak etanol bunga telang berpengaruh terhadap aktivitas antioskidan.  Konsentrasi 0,2% memberikan perbedaan yang signifikan dibandingkan dengan konsentrasi 0,1% dan 0,4%. Salep ekstrak etanol bunga telang dapat menyembuhkan luka sayat pada punggung kelinci. Berdasarkan hasil uji statistik menggunakan SPSS® terhadap penyembuhan luka sayat pada kelinci menunjukkan perbedaan yang signifikan. Konsentrasi 0,2% berbeda signifikan dengan konsentrasi 0,4% dimana waktu yang diperlukan konsentrasi 0,2% lebih cepat dibandingkan dengan konsentrasi 0,4%.
Combination of Gotu Kola (Centella asiatica (L.)) Ethyl Acetate Extract and Virgin Coconut Oil (VCO) as Burn Healing
Authors: Armadany Fery Indradewi , Fitrawan Laode Muhammad , Saputri Fitri Rahmadani , Aspadiah Vica , Kasmawati Henny
Published: August 2023

Burns result from exposure to heat sources like fire, chemicals, or radiation and can lead to tissue loss or damage. Traditional healing of burns often involves using herbal remedies like gotu kola and coconut, typically oil extracts. This study aims to identify the healing effects of burns by administering a combination of ethyl acetate extract of gotu kola herb and virgin coconut oil (VCO) to mice. The mice were divided into 7 groups, namely negative control (K(-)) was given tween 20; positive control (K(+)): burn topical medicine on the market, P1: 10% Ethylacetate extract in tween 20; P2: VCO; P3: Ethyl acetate extract 10% and VCO 50% in tween 20; P4: 5% Ethyl acetate extract in VCO; P5: extract 10% Ethyl acetate in VCO and treated for 21 consecutive days with a frequency of twice a day. The results showed that the combination of 10% ethyl acetate extract of gotu kola herb in VCO exhibited the highest healing activity for burns, comparable to the positive control (K(+)) topical medicine on the market. The higher the extract concentration and VCO, the better the healing activity of burns.
O PUNITIVISMO NO ÂMBITO DA FASE DE PLENÁRIO DO PROCEDIMENTO DO JÚRI EM RELAÇÃO AOS CRIMES DE HOMICÍDIO CONEXOS AO TRÁFICO DE ENTORPECENTES
Authors: Barata Rafael Santos Dumont
Published: August 2023

Este estudo retrata que os delitos originariamente tratados pelo juízo monocrático ou tribunal podem ser apreciados por um conselho de sentença, a depender de suas correlações com os crimes dolosos contra a vida, tentados ou consumados, restando patente que diversos fatores nucleados e irradiados a partir de casos concretos, inquinam-se de variáveis interpretativas e reativas que se ejetam da sistemática dual dos embates. A metodologia empregada na realização deste trabalho foi a revisão de literatura em livros e artigos que abordam o tema em análise, permitindo concluir que a supremacia dos veredictos é a fortificação cogente da decisão pelo Tribunal do Júri que, apesar do caráter sigiloso da votação pelo conselho de sentença, sintetiza e extrai a rejeição ou aceitação da conduta ensejadora do processo penal; por óbvio atingindo outros tipos penais intrínsecos aos propriamente afetos à sessão popular de julgamento, delineados e conjugados na denúncia e reproduzidos na sentença de pronúncia.
PODER COMO VIOLÊNCIA, VIOLÊNCIA COMO PODER
Authors: Bretas Aléxia Cruz
Published: August 2023

Pouco mais de cem anos após sua publicação original, o ensaio benjaminiano “Para a crítica da violência” tem sido lido e relido com interesse renovado pela academia. Apontado como um dos textos dos mais complexos e também mais incontornáveis para a discussão dos nexos e refrações entre poder e violência nas sociedades capitalistas avançadas, mereceu de Jacques Derrida, Giorgio Agamben e Judith Butler reflexões instigantes e atualizadas pelos dilemas contemporâneos. Inflamados pela recente ascensão de tendências protofascistas em todo o mundo, tais estudos nos levam a recolocar em questão algumas das inquietações que motivaram sua escrita no contexto da então incipiente República de Weimar: o que é violência? É possível o exercício de um poder instituído e mantido sem o recurso à violência? Do ponto de vista da ética e da política, há uma violência inevitável ou aceitável? Como combater a violência estatal ou sistêmica sem perpetuá-la? A não violência pode ser efetiva como potência política? Este artigo pretende indicar alguns desdobramentos das questões maiores tratadas por Walter Benjamin em três momentos principais de sua obra: Origem do drama barroco alemão (1916-1925), “Para a crítica da violência” (1921) e as teses “Sobre o conceito de história” (1940). À luz de uma leitura global e descolonial da imbricação apontada por Benjamin entre cultura e barbárie no âmago mesmo da marcha triunfal dos vencedores, a noção de verdadeiro Estado de exceção será acionada para delimitar algo como uma “violência revolucionária” encarregada de dinamitar o continuum do progresso em nome da emergência de uma nova era histórica.
POR UMA CONSTITUIÇÃO DA TERRA
Authors: Junqueira Laura Góes
Published: August 2023

Historicamente, os direitos civis, sociais e políticos constituem-se como formativos do status de cidadão, de maneira que a titularidade desses direitos fundamentais concerne à pertença a um determinado Estado-nação. No entanto, com o advento da contemporaneidade e dos desafios de um mercado globalizado e de um mundo interconectado e interdependente, surge a necessidade de uma garantia de direitos para além dos limites espaciais e políticos da cidadania até então existente. Luigi Ferrajoli, ao teorizar uma Constituição da Terra, apresenta a demanda por uma cidadania global, como solução possível para a efetiva garantia dos direitos fundamentais. Nessa perspectiva, o presente artigo busca explorar a possibilidade de uma cidadania global, frente ao constitucionalismo universal proposto por Ferrajoli, realizando-se, para tanto, pesquisa bibliográfica. Inicia-se, dessa maneira, com um breve histórico a respeito da formação da cidadania. Posteriormente, em um segundo momento, questiona-se os limites espaciais e políticos intrínsecos à cidadania atrelada ao Estado-nação. Em seguida, apresenta-se as críticas e propostas de Luigi Ferrajoli. A posteriori, ressalta-se o papel da educação na formação da cidadania global, como elemento necessário para a efetivação dos direitos civis, sociais e políticos. Conclui-se que a proposta de criação de uma Constituição da Terra, em que há a ruptura com a compreensão de cidadania atual e o rompimento com os limites a ela impostos pelo Estado-nação, não se faz utópica, mas, sim, torna-se uma solução crível. No entanto, para caminhar esse longo trajeto, a educação tem e terá um papel de extrema importância.
O MESSIANISMO DO MOISÉS DE FREUD
Authors: Martins Alessandra Affortunati
Published: August 2023

Partindo de duas breves alusões feitas por Walter Benjamin ao personagem bíblico Moisés, o artigo busca desvendar algumas das causas do fracasso mosaico em termos emancipatórios. Seu gesto, de fato, não foi capaz de dissolver a contínua história de opressão escrita pelas mãos dos vencedores. Para realizar esta análise, observa-se uma pequena alteração feita por Benjamin de dois termos decisivos em um trecho de Panorama Imperial: o ódio e a prece da versão de 1923 são correspondentemente substituídos por amargura e revolta em 1928 (LÖWY, 2012). Com esse debate e resgatando o Moisés egípcio de Freud, observa-se que o ímpeto mosaico inicial, que tinha no horizonte a libertação dos oprimidos, deveria ser preservado. Por outro lado, sua adesão às leis abstratas mostra a pertinência das críticas que parecem existir nos trechos alusivos à figura bíblica, escritos por Benjamin.
Menschenzentriertes Softwaredesign: Schlüssel zum Erfolg – auch in der Verwaltung? (Teil 2)
Authors: Lück-Schneider Dagmar
Published: August 2023

Im Rahmen eines Softwareentwicklungsprojektes im Bundesministerium der Verteidigung werden interne Auftraggeber und künftig Nutzende der Software kontinuierlich in das Anforderungsmanagement unter Anwendung der agilen Methode Scrum einbezogen. Das erfolgt unter Beachtung vorgegebener Organisationsstrukturen und Rahmenbedingungen. Die wesentlichste Erkenntnis aus den in Teil 1 des Beitrags dargestellten Positionen zum Einsatz agiler Methoden in der öffentlichen Verwaltung sowie dem verfolgten Fallbeispiel ist, dass die Berücksichtigung menschenzentrierten Designs nur ein, wenn auch notwendiger Erfolgsfaktor ist. Die öffentliche Verwaltung hat bei der Anwendung der hierfür üblichen Methoden besondere Herausforderungen zu meistern. Das vorgestellte Fallbeispiel zeigt aber, dass ihre Anwendung durchaus funktionieren kann.
Jazz als Prozess
Authors: Dorn Frank
Published: August 2023

The study elaborates that jazz is not only a musical style, but also a processual way of making music. This is connected with the assumption that the essence of jazz lies in the process as a procedure and not in the jazz music that emerges from it as a product. This insight offers a special music pedagogical potential, which has so far received too little attention in the school context. On the basis of a process model developed in the course of the work, possible music didactic perspectives are worked out and the effects on the aesthetic perception as well as the criteria for the evaluation of a performance are illuminated. The jazz process can be particularly well related to the paradigm of the performative. The processual understanding can show potentials of a performative music education in practice and at the same time legitimize it on a theoretical level.
Pseudo-Enhancement in Intracranial Aneurysms on Black-Blood MRI: Effects of Flow Rate, Spatial Resolution, and Additional Flow Suppression.
Authors: Pravdivtseva Mariya , Gaidzik Franziska , Berg Philipp , Hoffman Carson , Rivera-Rivera Leonardo , Medero Rafael , Bodart Lindsay , Roldan-Alzate Alejandro , Speidel Michael , Johnson Kevin , Wieben Oliver , Jansen Olav , Hövener Jan-Bernd , Larsen Naomi
Published: August 2023

An intracranial aneurysm is a life-threatening disease. Vessel-wall enhancement on black-blood MRI was associated with inflammation and proposed as a marker for higher aneurysm rupture risk. However, slow blood flow can mimic wall enhancement. Here, we studied the effects of flow rates, spatial resolution, and motion-sensitized driven equilibrium (MSDE) on black-blood MRI using printed aneurysm models. A hyperintense signal was observed in the models and co-localized with a slow flow. MSDE and higher flow rates reduced the hyperintensities. Slow-flow phenomena contribute substantially to aneurysm enhancement, vary with MRI parameters, and should be considered in rupture assessment.
Fetal cardiac 4D imaging from multi-planar balanced SSFP MRI
Authors: Portnoy Sharon , van Amerom Joshua , Hope Amanda , Goolaub Datta , Sun Liqun , Seed Mike , Macgowan Christopher
Published: August 2023

This work explores the feasibility of 4D fetal whole-heart image reconstruction from high resolution 2D multiplanar radial bSSFP acquisitions. High quality 4D reconstructions (1 mm isotropic spatial resolution, ~20 ms temporal resolution) are demonstrated in 3 congenital heart disease cases with distinct cardiac abnormalities. These dynamic, highly detailed visualizations of the fetal heart facilitate prenatal CHD diagnosis and planning for delivery and surgical intervention.
The More the Merrier? - On the Number of Trainable Parameters in Iterative Neural Networks for Image Reconstruction
Authors: Kofler Andreas , Schaeffter Tobias , Kolbitsch Christoph
Published: August 2023

Iterative neural networks (INNs) currently define the state-of-the-art for image reconstruction methods. With these methods, the obtained regularizers are not only optimally adapted to the employed physical model but also tailored to the reconstruction method the network implicitly defines. However, comparing the performance of different INNs-based methods is often challenging because of the black-box character of neural networks. In this work we construct an example which highlights the importance of keeping the number of trainable parameters approximately fixed when comparing INNs-based methods. If this aspect is not taken into consideration, wrong conclusions could be drawn.
Fat mitigation strategies to improve image quality of radial 4D flow MRI in obese subjects
Authors: Oechtering Thekla , Shamim A M K Muntasir , Spahic Alma , Panagiotopoulos Nikolaos , Wieben Oliver , Roldán-Alzate Alejandro , Reeder Scott , Johnson Kevin
Published: August 2023

4D flow MRI of the abdomen is challenging in obese patients due to confounding streak artifacts from fat and large imaging volume. This ongoing study aims to test different fat mitigation strategies to improve image quality. We acquired three 10-min contrast-enhanced, radial 4D flow sequences: 1) with clinically used standard parameters, 2) with inner volume excitation, and 3) with fat saturation. Preliminary results confirm best signal-to-noise ratio, longest streamlines and fewest streak-artifacts using inner volume excitation. Flow rate and repeatability did not differ between sequences.
4D flow MRI derived global intracranial pulse wave velocity and T1 white matter hypointensities among a population-based group of older people
Authors: Björnfot Cecilia , Eklund Anders , Larsson Jenny , Hansson William , Qvarlander Sara , Koskinen Lars-Owe , Malm Jan , Wåhlin Anders
Published: August 2023

Arterial stiffening occurs with age and could be detrimental to the brain through several pathways. This potentially aggravates factors causing cerebral small vessel disease. We assessed arterial stiffness of the intracranial arteries through a newly developed global intracranial pulse wave velocity (PWV) measurement using 4D flow MRI data in a population-based cohort of older people and compared it to white matter hypointensity volume (WMH). Results revealed a weak but significant correlation between WMH and PWV, suggesting that such PWV measurement could be a useful tool to assess the brain’s vascular health.
Turbo-spin echo based B1+ mapping in the presence of metallic hardware
Authors: Khodarahmi Iman , Keerthivasan Mahesh , Fritz Jan
Published: August 2023

A robust B1+ mapping technique in the presence of metallic hardware is still unavailable. Our proposed B1+ quantification technique relies on turbo-spin echo or SEMAC acquisitions to decrease metal-related susceptibility artifacts while resolving B1+ values from signal variations at various sets of excitation and refocusing flip angles. Apriori knowledge of signal evolution is obtained by simulating the Bloch equations at each B1+ value. Phantom validation showed promising results, particularly at areas close to the metal surface, which are invisible with other mapping techniques.
Acute Effects of High-Intensity Exercise on Brain Mechanical Properties and Cognitive Function
Authors: McIlvain Grace , Magoon Emily , Clements Rebecca , Merritt Alexis , Hiscox Lucy , Schwarb Hillary , Johnson Curtis
Published: August 2023

Here we use magnetic resonance elastography (MRE) to quantify brain mechanical properties of 30 individuals aged 19-30 immediately before a high intensity interval training (HIIT) exercise, immediately after exercise, and 1 hour after exercise. We additionally tested subjects’ cognitive performance at these time points through a memory task and two executive function tasks. We found that whole brain stiffness decreased in nearly all subjects immediately after exercise by an average of 4.2% (p<0.0001) and that whole brain damping ratio increased by an average of 3.1% (p=0.001). Performance on all three cognitive tasks improved immediately after exercise (p<0.05).
Predicting radionecrosis and recurrent disease through Amide Proton Transfer weighted imaging in brain metastases
Authors: Nichelli Lucia , Jacob Julian , Leclerq Delphine , Benbelkacem Farhat , Lehéricy Stéphane , Casagranda Stefano
Published: August 2023

Distinguishing tumor recurrence from radionecrotic injury of pre-irradiated brain metastases is fundamental to provide optimal patient care. Unfortunately, this distinction is often hard to make even with advanced MRI multimodal protocols. This study aims to evaluate APTw imaging in predicting the differentiation between radio-induced tissue changes from tumor progression at 3T in 20 pre-irradiated metastases. Results show that APTw metrics can significantly separate these two common radiological entities (p<0.0001) and suggest the use of fluid-suppressed APTw to reach higher discriminating values.
Lesion-specific Metabolic Fingerprinting in Relapsing-Remitting Multiple Sclerosis via 7T Magnetic Resonance Spectroscopic Imaging
Authors: Lipka Alexandra , Heckova Eva , Dal-Bianco Assunta , Hangel Gilbert , Rommer Paulus , Strasser Bernhard , Motyka Stanislav , Hingerl Lukas , Berger Thomas , Hnilicová Petra , Kantorová Ema , Leutmezer Fritz , Kurča Egon , Gruber Stephan , Trattnig Siegfried , Bogner Wolfgang
Published: August 2023

Conventional T1/T2-weighted magnetic resonance imaging (cMRI) is the method of choice for diagnosis and treatment monitoring of multiple sclerosis (MS), though not being able to explain underlying pathological processes. In contrast to cMRI-lesions, which only reflect the severity of irreversible tissue damage, MR Spectroscopic Imaging (MRSI) can detect pathologies on a biochemical level. In 51 relapsing-remitting (RRMS) patients, we investigate - enabled through ultra-high resolution FID-MRSI at 7T - the metabolic distribution within lesions and their vicinity as well as their location dependency and correlation to T1-hypointensity.
Mechanism of recovery following stem cell therapy in ischemic stroke: cell or secretome?
Authors: Helsper Shannon , Yuan Xuegang , Jeske Richard , Sun Li , Meckes David , Li Yan , Grant Samuel
Published: August 2023

This study interrogates human mesenchymal stem cell (hMSC) derived treatments (cells versus secretome) in a preclinical transient ischemic stroke model. Biochemical markers of tissue recovery measured longitudinally over 21 d via sodium chemical shift imaging and proton relaxation-enhanced MR spectroscopy demonstrated that the arterial injection of extracellular vesicles produced in vitro by hMSC improved outcomes over ischemic stroke, albeit not to the level of direct cellular implantation. For the first time, novel MRI-compatible labeling provided the initial visualization of biodistribution and estimated permanence of hMSC-derived extracellular vesicles in the ischemic brain.
Clinical validation of ADC thresholds established by the ECOG-ACRIN A6702 trial to reduce unnecessary biopsies in breast MR screening exams
Authors: Biswas Debosmita , Winters Andrea , Kazerouni Anum , Youn Inyoung , Lee Janie , Javid Sara , Rahbar Habib , Partridge Savannah
Published: August 2023

Numerous single-site studies have established that diffusion-weighted MRI (DWI) can improve breast MRI performance, but clinical implementation has been limited by lack of standardization. The ECOG-ACRIN multicenter A6702 trial determined two pre-specified ADC thresholds from standardized acquisition that could reduce unnecessary biopsies by up to 36%. Since lesion ADCs were computed using centralized offline analysis, whether similar performance could be achieved in clinical settings is not yet established. We demonstrate that implementing the ADC threshold specified by the ECOG-ACRIN trial in a clinical breast imaging setting could provide high sensitivity and potentially reduce unnecessary biopsies for screening breast MRI.
Probing Mitochondrial Function in Intact Fetal Brains with Ungated 4D Oxy-wavelet MRI in an Irradiation Injury Mouse Model
Authors: Christodoulou Anthony , Stapleton Margaret , Cortes Devin , Goetzman Eric , Lo Cecilia , Epperly Michael , Greenberger Joel , Wu Yijen
Published: August 2023

A novel motion-and-time resolved 4D oxy-wavelet MRI (4D-fMRI acquired with oscillating hypoxia challenges, analyzed by a continuous wavelet transform mimicking experimental oscillations) can acquire fetal MRI with high spatiotemporal resolution and can probe mitochondrial functions in live fetal brains. 4D oxy-wavelet MRI outcomes were validated with Oroboros mitochondrial function assays and correlated with mitochondrial targeting drug JP4-039 in a fetal irradiation injury mouse model. The mouse fetuses showed poor 4D oxy-wavelet outcomes had poor mitochondrial functions and vice versa. Furthermore, an automated time-frequency analysis scheme can correctly differentiate normal vs irradiated fetuses, paving the way for future AI-based automatic diagnosis.
MRI tracking of genetically engineered extracellular vesicles as SARS-CoV-2 mimetics for studying viral-induced pathologies
Authors: Galisova Andrea , Zahradnik Jiri , Allouche-Arnon Hyla , Schreiber Gideon , Bar-Shir Amnon
Published: August 2023

Extracellular vesicles (EVs) are cell derived nanoformulations that allow to use genetic tools to engineer their features. Here, we show an MR imaging platform, which is based on genetically engineered magnetically labeled EVs, for mapping the binding of SARS-CoV-2 mimetics to the ACE2 receptor in vivo. The proposed imaging platform can help to better understand the mechanism and development of SARS-CoV-2 infection and in the delivery of proposed therapeutics. The presented principles can be further extended to study other viruses and viral mutations by engineering a tailored peptide on the EVs surface and thus study viral-induced pathologies by MRI.
Macromolecule modelling for improved metabolite quantification using very short echo time MRS at 3T: The PRaMM model
Authors: Dell'Orco Andrea , Riemann Layla , Aydin Semiha , Scheel Michael , Fillmer Ariane
Published: August 2023

The accurate quantification of ultra-short echo-time 1H-MRS spectra is challenging due to broad macromolecular (MM) signal components. Here, we propose the parameterized-ratio MM (PRaMM) method to model the MM and its use in linear-combination model fitting of 1H-MRS spectra. The PRaMM method uses ratios of MM signal amplitudes as soft-constraints to limit the degrees of freedom of the fitting model, while allowing for more flexibility than commonly used approaches. The suggested model is demonstrated to improve the quantification of metabolites compared to two common methods for MM treatment.
Multi-scale UNet with Self-Constructing Graph Latent for Deformable Image Registration
Authors: Chatterjee Soumick , Bajaj Himanshi , Siddiquee Mohammad Istiyak Hossain , Subbarayappa Nandish , Simon Steve , Shashidhar Suraj , Speck Oliver , Nürnberger Andreas
Published: August 2023

Deep Learning based deformable registration techniques such as Voxelmorph, ICNet, FIRE, do not explicitly encode global dependencies and track large deformations. This research attempts to encode semantics, i.e. structure and overall view of the anatomy in the supplied image, by incorporating self-constructing graph network in the latent space of a UNet model. It also attempts to track larger deformations through multiscale architecture and maintains consistent deformations through cycle consistency. The proposed method was compared against Voxelmorph and ANTs for T1 intramodal and T1-T2 Intermodal registration on IXI Dataset. The experiments show that the proposed model outperforms the baselines.
A Deep-Learning Approach to Predicting Disease Progression in Multiple Sclerosis Using Magnetic Resonance Imaging
Authors: Storelli Loredana , Azzimonti Matteo , Gueye Mor , Preziosa Paolo , Vizzino Carmen , Tedeschi Gioacchino , De Stefano Nicola , Pantano Patrizia , Filippi Massimo , Rocca Maria A.
Published: August 2023

Artificial intelligence (AI) approaches have been applied in several fields of multiple sclerosis (MS) in recent years. However, their application to predict disease progression remains largely unexplored. In this study, we obtained a robust and accurate AI tool for predicting clinical and cognitive evolution at two years for MS patients, based on just T1-weighted and T2-weighted brain MRI scans at baseline visit, which exceeded the performance of two expert physicians blinded to patients’ clinical history. This algorithm has the potential to be an important tool to support physicians for a prompt recognition of MS patients at risk of disease worsening.
Impact of 4D-flow MRI spatial resolution on quantitative hemodynamics in 3D-printed aortic dissection models with varying tear size
Authors: Zimmermann Judith , Bäumler Kathrin , Cork Tyler , Loecher Michael , Marsden Alison , Fleischmann Dominik , Ennis Daniel
Published: August 2023

Understanding flow dynamics in type-B aortic dissection (TBAD) is of high clinical interest to predict complications and individualize treatment. Here, we sought to evaluate 4D-flow MRI at high and low spatial image resolution, in comparison to high resolution, high signal-to-noise 2D phase contrast MRI. Further, we compare TBAD hemodynamics and flow alterations owing to changes in tear size. We leverage novel 3D printing technology to manufacture three compliant TBAD models with altered tear morphology and perform pressure- and flow-controlled MRI with an advanced in vitro flow setup.
Computationally tractable high resolution non-rigid motion compensated 3D abdominal image reconstruction
Authors: Bruijnen Tom , Schakel Tim , van den Berg Cornelis
Published: August 2023

Respiratory and bulk organ motion remains a significant problem in abdominal 3D MRI. Motion compensated image reconstruction is a potential generic solution, but requires solving a large computational problem. In this work we propose to split the image reconstruction into sagittal planes to correct for the majority of respiratory and bulk organ motion. We demonstrate that the proposed method reconstructs high quality free-breathing T1 gradient echo images that are qualitatively comparable to breathhold scans. Future work will assess the feasibility of the method for dynamic contrast enhanced MRI and MR cholangiopancreatography.
Adiabatic T1ρ mapping of the human myocardium at 3T.
Authors: Coletti Chiara , Tourais Joao , Ploem Telly , Akçakaya Mehmet , van de Steeg-Henzen Christal , Weingärtner Sebastian
Published: August 2023

T1ρ-mapping constitutes a promising contrast-free alternative to LGE MRI for assessment of myocardial viability. However its applicability is hindered by susceptibility to B0 and B1+ field imperfections. In this work we propose a single breath-hold ECG-triggered adiabatically-prepared single-shot bSSFP T1ρ-mapping sequence. Bloch simulations are employed to identify optimal parameters for adiabatic pulses. The use of adiabatic preparations yields better resilience to system inhomogeneities and improved myocardium/blood contrast compared with conventional spin-lock modules, both in phantom and in-vivo. Thus, adiabatically-prepared sequences at 3T form a promising candidate for non-contrast evaluation of ischemic and non-ischemic cardiomyopathies.
Synthetic Multi-Contrast Late Gadolinium Enhancement Using Post-Contrast Cardiac MR Fingerprinting
Authors: Rashid Imran , Rajagopalan Varun , Al-Kindi Sadeer , Rajagopalan Sanjay , Seiberlich Nicole , Hamilton Jesse
Published: August 2023

A technique is introduced using post-contrast cardiac Magnetic Resonance Fingerprinting (MRF) T1 and T2 maps to calculate synthetic late gadolinium enhancement (LGE) images with multiple contrast weightings, including bright-blood magnitude inversion recovery images, dark-blood T2-prepared inversion recovery images, and a novel contrast weighting (optimized for each patient) designed to improve differentiation among viable myocardium, blood, and scar based on measured T1 and T2 values. Initial results are presented in fifteen patients with ischemic cardiomyopathy scanned at 1.5T using conventional LGE and MRF-derived multi-contrast LGE images.
Clinical Applicability of SLOW-editing compared to MEGA-editing for the Evaluation of the IDH-mutation Status in Glioma Patients at 7T
Authors: Weng Guodong , Slotboom Johannes , Radojewski Piotr
Published: August 2023

Purpose: comparison of SLOW-editing and MEGA-editing for detection of 2HG in glioma-suspected patients at 7T.

Methods: EPSI-based B0/B0+ robust SLOW-editing and semiLASER-SVS/CSI-based MEGA-editing were applied in 10 patients. The edited 2HG signal at 4.01 ppm aimed to be detected with TE = 68 – 75 ms.

Results: 8 of 9 patients were identified successfully using SLOW-editing which has a higher spectral quality and success rate compared to MEGA-semiLASER. semiLASER-SVS/CSI-based MEGA-editing showed strong ghosting artifacts around 4.01ppm making 2HG-identification impossible.

Conclusions: in vivo 2HG-editing can be performed using SLOW-EPSI within 10 minutes measurement time and is the preferrable method at UHF.
31P multi-echo imaging with low B1+ dual-band refocusing pulses
Authors: Shams Zahra , van der Kemp Wybe , Wiegers Evita , Zwanenburg Jacobus , Wijnen Jannie , Klomp Dennis
Published: August 2023

We developed a multi-echo sequence to detect phosphomonoesters (PME) and phosphodiesters (PDE), aiming for high signal-to-noise and T2-contrast to noise ratio per unit of time, with the constraint of a maximum available B1 of ~15μT. In line with MRI, the candidates were multi-echo MRSI with 180° pulses (full refocusing) and fast spin echo (FSE) with modulated variable flip angles. Multi-echo MRSI resulted in higher SNR at the same SAR level compared to a FSE with modulated refocusing flip angles. Using 9 dual-band echo pulses improved the SNR for PDE and PME more than two-fold compared to the FID signal alone.
Dynamic fitting of functional MRS, diffusion weighted MRS, and edited MRS using a single interface
Authors: Clarke William , Ligneul Clémence , Cottaar Michiel , Jbabdi Saad
Published: August 2023

Dynamic magnetic resonance spectroscopy acquires multiple spectra under changing experimental conditions. Examples include editing, functional MRS, and diffusion weighted MRS. In this work we introduce a new tool that allows direct fitting of a dynamic signal model to multiple spectra simultaneously. Incorporation of a dynamic model into multi-spectra fitting reduces the number of parameters to be estimated from noisy data, reducing overall uncertainty.

The tool is demonstrated on simulated and multi-subject in vivo datasets, highlighting the high flexibility of the tool, which is open source and available as part of the FSL-MRS toolbox.
Maxwell Field Compensation for 2D Spiral-Ring Turbo Spin-Echo Imaging at 0.55T and 1.5T
Authors: Wang Zhixing , Feng Xue , Ramasawmy Rajiv , Campbell-Washburn Adrienne , Mugler John , Meyer Craig
Published: August 2023

Concomitant (Maxwell) fields are problematic for TSE imaging when the readout waveforms vary along the echo train, leading to severe signal dropouts and image blurring. These effects are exaggerated when using prolonged, high-gradient amplitude readouts at lower magnetic-field strengths. The purpose of this work was to implement 2D TSE imaging using annular spiral rings with compensation of self-squared concomitant-gradient terms at the echo time and across echo spacings via gradient waveform modifications, and with compensation of the residual Maxwell- and B0-field induced phase accruals along the readout via image reconstruction. This method reduced artifacts at both 0.55T and 1.5T.
Real-Time Phase Contrast MRI to quantify Cerebral arterial flow variations during normal breathing
Authors: Pan Liu , Fall Sidy , Metanbou Serge , Baledent Olivier
Published: August 2023

Real-time phase contrast MRI has been applied to investigate cerebral arterial blood flow (CABF) during normal breathing of healthy volunteers. We developed a novel time-domain analysis method to quantify the effect of normal breathing on several parameters of CABF. We found the existence of a delay between the recorded respiratory signal from the belt sensor and the breathing frequency component presents in the reconstructed arterial blood flows. During the expiratory, the mean flow rate of CABF increased by 4.4±1.7%, stroke volume of CABF increased by 9.8±3.1% and the duration of the cardiac period of CABF increased by 8.1±3%.
A group-wise cardiac motion estimation network leveraging temporal correlation
Authors: Pan Jiazhen , Rueckert Daniel , Kuestner Thomas , Hammernik Kerstin
Published: August 2023

Cardiac motion estimation is the gold-standard for assessing cardiac function and complementing cardiac image reconstruction. However, previous approaches in this area either suffered from long registration times or low accuracy because the inherent temporal correlation of the cardiac motion is not leveraged. In this work, we propose a method called GRAFT, which takes multiple cardiac frames as inputs to leverage the temporal correlation. Furthermore, temporal coherence is ensured by introducing the temporal smoothness loss during the training. Our experiments indicate that GRAFT can provide competitive deformation estimation results to state-of-the-art methods and outperform them in subsequent motion-compensated MRI reconstruction.