bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nitrogen-enriched, Highly Pressurized Nebular Clouds Surrounding a Super Star Cluster at Cosmic Noon
Authors: Pascale Massimo , Dai Liang , McKee Christopher F. , Tsang Benny T.-H. 
Published: November 2023

Abstract
Strong lensing offers a precious opportunity for studying the formation and early evolution of super star clusters that are rare in our cosmic backyard. The Sunburst Arc, a lensed Cosmic Noon galaxy, hosts a young super star cluster with escaping Lyman continuum radiation. Analyzing archival Hubble Space Telescope images and emission line data from Very Large Telescope/MUSE and X-shooter, we construct a physical model for the cluster and its surrounding photoionized nebula. We confirm that the cluster is ≲4 Myr old, is extremely massive M
⋆ ∼ 107
M
⊙, and yet has a central component as compact as several parsecs, and we find a gas-phase metallicity Z = (0.22 ± 0.03)Z
⊙. The cluster is surrounded by ≳105
M
⊙ of dense clouds that have been pressurized to P ∼ 109 K cm−3 by perhaps stellar radiation at within 10 pc. These should have large neutral columns N
HI > 1022.8 cm−2 to survive rapid ejection by radiation pressure. The clouds are likely dusty as they show gas-phase depletion of silicon, and may be conducive to secondary star formation if N
HI > 1024 cm−2 or if they sink farther toward the cluster center. Detecting strong [N iii]λ
λ 1750,1752, we infer heavy nitrogen enrichment

log
(
N

/

O
)
=
−

0.21

−
0.11

+
0.10

. This requires efficiently retaining ≳500 M
⊙ of nitrogen in the high-pressure clouds from massive stars heavier than 60 M
⊙ up to 4 Myr. We suggest a physical origin of the high-pressure clouds from partial or complete condensation of slow massive star ejecta, which may have an important implication for the puzzle of multiple stellar populations in globular clusters.
LIMpy: A Semianalytic Approach to Simulating Multiline Intensity Maps at Millimeter Wavelengths
Authors: Roy Anirban , Valentín-Martínez Dariannette , Wang Kailai , Battaglia Nicholas , van Engelen Alexander 
Published: November 2023

Abstract
Mapping of multiple lines such as the fine-structure emission from [C ii] (157.7 μm), [O iii] (52 and 88.4 μm), and rotational emission lines from CO are of particular interest for upcoming line intensity mapping (LIM) experiments at millimeter wavelengths, due to their brightness features. Several upcoming experiments aim to cover a broad range of scientific goals, from detecting signatures of the epoch of reionization to the physics of star formation and its role in galaxy evolution. In this paper, we develop a semianalytic approach to modeling line strengths as functions of the star formation rate (SFR) or infrared luminosity based on observations of local and high-z galaxies. This package, LIMpy (Line Intensity Mapping in Python), estimates the intensity and power spectra of [C ii], [O iii], and CO rotational transition lines up to the J levels (1–0) to (13–12) based both on analytic formalism and on simulations. We develop a relation among halo mass, SFR, and multiline intensities that permits us to construct a generic formula for the evolution of several line strengths up to z ∼ 10. We implement a variety of star formation models and multiline luminosity relations to estimate the astrophysical uncertainties on the intensity power spectrum of these lines. As a demonstration, we predict the signal-to-noise ratio of [C ii] detection for an EoR-Spec-like instrument on the Fred Young Submillimeter Telescope. Furthermore, the ability to use any halo catalog allows the LIMpy code to be easily integrated into existing simulation pipelines, providing a flexible tool to study intensity mapping in the context of complex galaxy formation physics.
A Phase-resolved View of the Low-frequency Quasiperiodic Oscillations from the Black Hole Binary MAXI J1820+070
Authors: Shui Qing C. , Zhang S. , Zhang Shuang N. , Chen Yu P. , Kong Ling D. , Wang Peng J. , Peng Jing Q. , Ji L. , Santangelo A. , Yin Hong X. , Qu Jin L. , Tao L. , Ge Ming Y. , Huang Y. , Zhang L. , Liu Hong H. , Zhang P. , Yu W. , Chang Z. , Li J. , Ye Wen T. , Li Pan P. , Yu Zhuo L. , Yan Z. 
Published: November 2023

Abstract
Although low-frequency quasiperiodic oscillations (LFQPOs) are commonly detected in the X-ray light curves of accreting black hole X-ray binaries, their origin still remains elusive. In this study, we conduct phase-resolved spectroscopy in a broad energy band for LFQPOs in MAXI J1820+070 during its 2018 outburst, utilizing Insight-HXMT observations. By employing the Hilbert–Huang transform method, we extract the intrinsic quasiperiodic oscillation (QPO) variability, and obtain the corresponding instantaneous amplitude, phase, and frequency functions for each data point. With well-defined phases, we construct QPO waveforms and phase-resolved spectra. By comparing the phase-folded waveform with that obtained from the Fourier method, we find that phase folding on the phase of the QPO fundamental frequency leads to a slight reduction in the contribution of the harmonic component. This suggests that the phase difference between QPO harmonics exhibits time variability. Phase-resolved spectral analysis reveals strong concurrent modulations of the spectral index and flux across the bright hard state. The modulation of the spectral index could potentially be explained by both the corona and jet precession models, with the latter requiring efficient acceleration within the jet. Furthermore, significant modulations in the reflection fraction are detected exclusively during the later stages of the bright hard state. These findings provide support for the geometric origin of LFQPOs and offer valuable insights into the evolution of the accretion geometry during the outburst in MAXI J1820+070.
The Spatial and Emission Properties of the Large [O iii] Emission Nebula Near M31
Authors: Fesen Robert A. , Kimeswenger Stefan , Shull J. Michael , Drechsler Marcel , Strottner Xavier , Sainty Yann , Falls Bray , Vergnes Christophe , Martino Nicolas , Walker Sean , Rupert Justin 
Published: November 2023

Abstract
Drechsler et al. reported the unexpected discovery of a 1.°5 long [O iii] emission nebula 1.°2 southeast of the M31 nucleus. Here we present additional images of this large emission arc, called the Strottner–Drechsler–Sainty Object (SDSO), along with radial velocity and flux measurements from low-dispersion spectra. Independent sets of [O iii] images show SDSO to be composed of broad streaks of diffuse emission aligned northeast–southwest. Deep Hα images reveal no strong coincident emission suggesting a high [O iii]/Hα ratio. We also find no other [O iii] emission nebulosity as bright as SDSO within several degrees of M31 and no filamentary Hα emission connected to SDSO. Optical spectra taken along the nebula’s northern limb reveal [O iii] λ
λ4959, 5007 emissions matching the location and extent seen in our [O iii] images. The heliocentric velocity of this [O iii] nebulosity is −9.8 ± 6.8 km s−1 with a peak surface brightness of (4 ± 2) × 10−18 erg s−1 cm−2 arcsec−2 (∼0.55 Rayleigh). We discuss SDSO as a possible unrecognized supernova remnant, a large and unusually nearby planetary nebula, a stellar bow shock nebula, or an interaction of M31's outer halo with Local Group circumgalactic gas. We conclude that galactic origins for SDSO are unlikely and favor instead an extragalactic M31 halo–circumgalactic cloud interaction scenario, despite the nebula’s low radial velocity. We then describe new observations that may help resolve the nature and origin of this large nebulosity so close to M31 in the sky.
“Stop The War, I Want to Get Out”: DC Comics’ Sgt Rock and Complicating Images of America’s Second World War
Authors: Sandy James 
Published: November 2023

Cet essai retrace l’évolution de la bande dessinée intitulée Our Army at War publiée par la maison d’édition DC Comics et en particulier la trajectoire de son personnage vedette, Sergeant Rock, depuis son apparition en 1952 jusqu’à sa disparition canonique en 2010. Anthologie phare, Our Army at War a contribué au développement d’un récit et d’une mythologie de la « guerre juste », appliquée à la Seconde Guerre mondiale aux États-Unis, tout en proposant une interprétation plus complexe des dynamiques de la guerre. En effet, un portrait simpliste à la gloire d’une nation toujours victorieuse y est brossé, tout en insérant au récit une réflexion sur des enjeux de société plus larges, ce qui place une telle bande dessinée dans la position particulière d’influencer, de façon non univoque, le mode de remémoration collective de la guerre et les contours de sa mythologie.
L’Uruguay et ses footballeurs dans l’espace atlantique de l’entre-deux-guerres : circulations, discours, représentations
Authors: Jalabert d’Amado Lorenzo 
Published: November 2023

En 1924, la sélection uruguayenne fut la première équipe sud-américaine à prendre part au tournoi de football des Jeux olympiques. Inconnue du public local avant son arrivée à Paris, elle fit rapidement sensation en remportant la compétition haut la main. Cette « découverte » par l’Europe de ce football allogène marqua l’avènement d’une nouvelle ère dans les relations sportives entretenues entre les deux continents : les clubs et les joueurs sud-américains commencèrent à circuler dans l’espace footballistique européen, la presse locale forgea des discours essentialisants visant à expliquer ce phénomène de suprématie sportive, tandis que la presse domestique créa en retour une narration faisant du football et de ses athlètes, une émanation de la nation.
Acute Appendicitis as a Rare Cause of Acute Surgical Abdomen in Neonates: A Case Series
Authors: Kumar Parveen , Manchanda Vivek , Sengar Mamta 
Published: November 2023

Background:
Neonatal appendicitis is a rare diagnosis. There is increased morbidity with associated complications like perforation, mass formation etc.

Cases:
We present here 6 cases of acute surgical abdomen, with pre-operative diagnosis of right iliac fossa lump formation in 3 and perforation peritonitis, intussusception, liver abscess each in 1 patient. On exploration, they were found to have complicated appendicitis. 5 of them could be salvaged, with 1 mortality.

Conclusion:
It is imperative to have high index of suspicion to prevent delayed treatment. Early surgical intervention is recommended to avoid potential morbidity and mortality.
Effets du compost de<i>Jatropha curcas</i> L. et de la fumure minérale vulgarisée sur les propriétés chimiques du sol et des rendements du maïs (<i>Zea mays</i>) à l’ouest du Burkina Faso
Authors: Bazongo Pascal , Traore Karim , Kiemtore Benoit , Da Isdine Aziz Nambon , Coulibaly Alou , Traore Ouola 
Published: November 2023

Le maïs occupe une place importante au niveau mondial. Cependant, des contraintes pédoclimatiques majeures pèsent sur l’intensification de sa culture. Afin d’apporter une contribution à l’amélioration de la productivité du maïs, une étude a été menée en station de recherche de l’INERA Farako-Ba à l’ouest du Burkina Faso. Le dispositif expérimental a été un bloc de Fisher complètement randomisé à 4 répétitions, comportant cinq traitements chacun. Le facteur étudié a été le type de fumures pris à cinq niveaux de fertilisation : T1 (200 kg/ha de NPK + 150 kg/ha Urée) = (Fumure Vulgarisée) ; T2 (5 t/ha compost); T3 (6 t/ha compost + FV); T4 (7 t/ha compost + FV) ; T5 (8 t/ha compost + FV). Les résultats montrent que dans le traitement T5, la teneur en P assimilable augmente significativement de 34% comparativement à celle issue du traitement T1. La teneur en K disponible augmente de 11% dans le traitement T5. Les rendements grains et biomasse de maïs issus du traitement T5 ont augmenté respectivement de 1399 kg.ha-1 et de 1840 kg.ha-1 par rapport au traitement T1. Le compost issu du Jatropha améliore donc la productivité du maïs. Il apparaît nécessaire de poursuivre cette étude dans d’autres zones agro-écologiques en vue de proposer des formules de fumures adaptées.
Maize occupies an important place at world level. However, major pedoclimatic constraints weigh on the intensification of its cultivation. In order to make a contribution to improving maize productivity, a study was conducted at the INERA Farako-Ba research station in western Burkina Faso. The experimental design was a completely randomized Fisher block with 4 repetitions, with five treatments each. The factor studied was the types of manure taken at five fertilization levels: T1 (200 kg/ha NPK + 150 kg/ha urea) = (Vulgarized manure); T2 (5 t/ha compost); T3 (6 t/ha compost + FV); T4 (7 t/ha compost + FV); T5 (8 t/ha compost + FV). The results show that in soils from T5 treatments, the assimilable P content increases significantly by 34% compared to that from T1 treatment. The available K content increases by 11% in T5 treatment soils (8 t/ha compost + FV). Grain yields and maize biomass from the T5 treatment increased by 1399 kg.ha-1 and 1840 kg.ha-1 respectively compared to the T1 treatment. Compost from Jatropha therefore improves the productivity of corn. It appears necessary to continue this study in other agro-ecological zones with a view to proposing manure formulas adapted.
Hospital preparedness and response to the Freetown oil tanker explosion - A case study of A Tertiary Hospital in Sierra Leone
Authors: Coker Joshua , Abiri Onome , Jalloh Abdulai , Coker Nellie , Gbla Alhaji , Kabba Mustapha 
Published: November 2023

Oil tanker explosions are a fairly common cause of disaster in sub–Saharan Africa. These disasters may have secondary effects on health service delivery due to collapse of routine health service provision as staff concentrate on taking care of the disaster victims. This might suggest that our hospitals and health systems are not fully prepared to cope with these situations. The article aims to share our experience in managing tanker explosions in terms of disaster preparedness and response, access to drugs and medical supplies, access to laboratory facilities and the medical and surgical problems commonly encountered as well as possible recommendations.
Pelatihan teknik budidaya tanaman sayuran di lahan Tailing Mile Point 21 Timika
Authors: Prabawardani Saraswati , Taberima Sartji , Mawikere Nouke L. , Fenetiruma Obaja , Luhulima Fiona D. N. 
Published: November 2023

ABSTRACT
PT Freeport Indonesia has committed to restore tailings into fertile land through the reclamation and revegetation program. One of the revegetation activities is the cultivation of vegetable plants. In its implementation, field human resources are needed to be trained into capable field working people in vegetable cultivation. Thus, this training aims to provide guidance, and practice for field workers of PTFI Environmental Department Reclamation Division in cultivating vegetable plants in the MP 21 Timika tailings land. The activity was carried out in June 2023. The method of this training was in the form of technical guidance given practically in the form of a plot demonstration in the field, which was preceded by a lecture. The activity was well attended by all participants. This activity consisted of land preparation, fertilization, seedling, sowing, and transferring the plants into the field. The result of the extension activity showed that the field workers who were trained became more skillful in cultivating vegetable plants, and also indicated by good growth of eggplant, tomato and chili.
Keywords: Cultivation; Revegetation; Tailings; Vegetables

ABSTRAK
PT Freeport Indonesia telah berkomitmen untuk memberdayakan lahan tailing melalui kegiatan reklamasi dan revegetasi, diantaranya menjadi lahan budidaya. Salah satu kegiatan revegetasi adalah pembudidayaan tanaman sayuran, namun dalam pelaksanaanya dibutuhkan sumberdaya lapang yang mampu bekerja. Dengan demikian penyuluhan ini bertujuan untuk memberikan bimbingan dan praktek bagi tenaga lapang Divisi Reklamasi Departemen Lingkungan PTFI untuk membudidayakan tanaman sayuran di lahan tailing MP 21 Timika. Kegiatan dilaksanakan pada bulan Juni 2023. Metode kegiatan berupa bimbingan teknis yang diberikan secara praktis berupa demonstrasi plot di lapang yang didahului dengan bentuk ceramah. Kegiatan ini diikuti dengan baik oleh pekerja atau tenaga lapang PTFI dari sejak persiapan lahan, pemupukan, penyemaian, pembibitan, hingga penanaman di lapang. Hasil penyuluhan menunjukkan bahwa tenaga lapang yang dilatih menjadi lebih terampil dalam membudidayakan jenis tanaman sayuran, dan juga ditunjukkan oleh hasil pertumbuhan yang baik dari tanaman terong, tomat dan cabe.
Kata kunci: Budidaya; Revegetasi; Sayuran; Tailing
Đánh giá mức độ ô nhiễm vi sinh vật trên thịt heo được bán ở một số chợ trên địa bàn Thành phố Huế
Authors: Lê Minh Đức , Hồ Thị Dung , Phạm Hoàng Sơn Hưng , Nguyễn Thị Thùy , Phan Thị Hằng , Lê Trần Hoàn , Nguyễn Văn Chào 
Published: November 2023

Nghiên cứu được thực hiện nhằm mục đích đánh giá mức độ nhiễm một số vi sinh vật trên thịt heo bán tại một số chợ thuộc thành phố Huế. Tổng số 60 mẫu thịt được dùng để phân tích mức độ ô nhiễm coliform, Escherichia coli (E. coli), Salmonella theo TCVN 9975 : 2013 và TCVN 10780-1:2017 ISO 6579-1:2017. Mẫu sau khi được xử lý, vi khuẩn coliform, Escherichia coli được xác định trên đĩa Petrifilm, vi khuẩn Salmonella được xác định bằng cách cấy trải trên môi trường XLD. Kết quả cho thấy, có 100% mẫu thịt heo bị nhiễm coliform, 88,33% mẫu nhiễm E. coli và 50,00% mẫu nhiễm Salmonella. Số lượng coliform trung bình trong các mẫu là 5,87×104 CFU/g, cao gấp 587 lần so với tiêu chuẩn. Số lượng E. coli là 0,72×104 CFU/g, cao gấp 72 lần so với tiêu chuẩn cho phép. Khi xét cả 3 chỉ tiêu vi sinh vật thì 100% các mẫu đều không đạt tiêu chuẩn an toàn vệ sinh thực phẩm theo TCVN 7046:2009. Mức độ ô nhiễm vi sinh vật trong các mẫu ở các chợ là không tương đồng. Chợ Bến Ngự mặc dù có tỷ lệ nhiễm E. coli thấp nhất (80,00%), nhưng tỷ lệ nhiễm Salmonella cao nhất (60,00%). Như vậy, cần có các giải pháp đảm bảo vệ sinh an toàn thực phầm nhằm hạn chế mức độ ô nhiễm vi sinh vật trong thịt heo đang bán tại các chợ trên địa bàn thành phố Huế.
Đa dạng loài trong chi sa nhân (Amomum) thuộc họ gừng (Zingiberaceae) ở khu bảo tồn Sao La, tỉnh Thừa Thiên Huế
Authors: Đoàn Quốc Tuấn , Nguyễn Đình Quỳnh Phú , Đinh Diễn , Văn Thị Yến , Lê Tuấn Anh , Trần Nam Thắng 
Published: November 2023

TÓM TẮT
Chi Sa nhân (Amomum) là một trong những chi lớn nhất của họ Gừng (Zingiberaceae). Kết quả điều tra, thu mẫu các loài thuộc chi Sa nhân trên 24 tuyến điều tra ở Khu bảo tồn (KBT) Sao La, tỉnh Thừa Thiên Huế đã xác định và định danh được 9 loài, bổ sung 4 loài cho danh lục thực vật Khu bảo tồn Sao La. Đặc điểm hình thái chính dễ nhận diện của các loài thuộc chi Sa nhân gồm cụm hoa mọc từ thân rễ, quả có cạnh hoặc gai nhỏ. KBT Sao La là một trong 3 khu rừng đặc dụng ở tỉnh Thừa Thiên Huế có tính đa dạng các loài thuộc chi Sa nhân cao nhất với 9 loài. Các loài Sa nhân tại khu vực nghiên cứu có giá trị sử dụng đa dạng, trong đó: có 9 loài cho tinh dầu, 5 loài làm thuốc, 2 loài cho quả ăn được và 1 loài được sử dụng làm gia vị. Có 2 yếu tố địa lý chính trong phân bố các loài thuộc chi Sa nhân ở khu vực nghiên cứu, yếu tố nhiệt đới châu Á chiếm 60 % và yếu tố Đặc hữu Việt Nam chiếm 40 %. Môi trường sống của các loài Sa nhân tại khu vực nghiên cứu chủ yếu ở ven suối và rừng thứ sinh chiếm 100%, tiếp đến là rừng nguyên sinh chiếm 60% và trảng cây bụi 40%.
PENERAPAN MODEL PEMBELAJARAN GROUP INVESTIGATION DALAM PENINGKATAN PRESTASI BELAJAR PESERTA DIDIK
Authors: Muliana  
Published: November 2023

Abstrak. Penelitian ini menggunakan metode penelitian kualitatif pada Penelitian Tindakan Kelas. Penelitian dilakukan pada siswa kelas VIII MTs Alkhairaat Tavanjuka yang berjumlah 26 siswa. Penelitian dilakukan dalam 2 siklus yang dimulai pada bulan Agustus dan berakhir pada bulan November 2021. Hasil awal yang diperoleh pada proses pembelajaran IPS di kelas VIII MTs Alkhairaat Tavanjuka ditemukan bahwa motivasi belajar siswa rendah sehingga mendapat nilai rendah. di bawah standar ketuntasan minimal ketuntasan belajar (KKM). Peneliti melakukan perbaikan hasil belajar dengan menggunakan tipe group investigation untuk meningkatkan nilai siswa berdasarkan standar ketuntasan minimal ketuntasan belajar yang telah ditentukan. Penulis berhasil melakukan perbaikan proses pembelajaran pada akhir siklus kedua. Dengan penerapan pembelajaran model investigasi kelompok, Target nilai siswa dapat dicapai pada akhir siklus kedua. Target penelitian berhasil dicapai, peningkatan hasil belajar siswa yang signifikan tercapai pada siklus II.
Kata kunci: Model Pembelajaran, Group Investigation, Prestasi Belajar.
HUBUNGAN USIA IBU POSTPARTUM DENGAN KEJADIAN DEPRESI POSTPARTUM DI POSYANDU DESA WADUNGGETAS
Authors: Devi Sinta Septiana , Sari Dewi Kartika 
Published: November 2023

Latar Belakang: Postpartum depresi merupakan gangguan mood yang terjadi setelah melahirkan. gangguan ini merefleksikan disregulasi psikologikal yang merupakan tanda dari gejala-gejala depresi mayor. Berdasarkan laporan WHO diperkirakan wanita melahikan yang mengalami Postpartum Depresi ringan berkisar 10 per 1000 kelahiran hidup dan Postpartum Depresi sedang atau berat berkisar 30 sampai 200 per 1000 kelahiran hidup. Tujuan: Penelitian ini bertujuan untuk menganalisis hubungan antara usia ibu postpartum dengan kejadian depresi postpartum di posyandu desa Wadunggetas. Metode: Subjek penelitian adalah 22 ibu postpartum di posyandu desa Wadunggetas. Penelitian ini menggunakan kuesioner Edinburgh Postnatal Depression Scale (EPDS). Data dianalisa dengan statistical product and service solutions (SPSS). Hasil: hasil penelitian menunjukkan bahwa uji Rank-Spearman membuktikan adanya hubungan antara usia ibu postpartum dengan kejadian depresi postpartum di posyandu desa wadunggetas dengan p value =0,006. kejadian depresi postpartum di posyandu menggunakan kuesioner EPDS sebanyak 9 ibu postpartum (40,9%) baru pengalaman memiliki bayi atau mengalami baby blues,6 ibu postpartum (27,3%) menunjukkan gejala depresi.faktor resiko yang didapat dalam penelitian ini adalah usia ibu postpartum 35 tahun. Kesimpulan: kejadian depresi postpartum di posyandu desa Wadunggetas berdasarkan skor EPDS adalah 40,9%.
Artillería en los conflictos bélicos, mirada estratégica del enfrentamiento bélico ruso-ucraniano
Authors: Ramírez Figueredo Sergio Andrés , Machado Sánchez Dagoberto Alexis , Gómez Marín Natalia Juliana 
Published: November 2023

Desde el análisis del concepto de artillería se busca comprender algunas de sus definiciones y propósitos que permitan establecer el porqué de su importancia para los Estados en el contexto internacional; ello a partir de un breve recorrido histórico, útil para asimilar la evolución de la artillería como pieza bélica desde sus orígenes (aproximadamente siglo XIII) hasta el presente. La comprensión conceptual desde las Relaciones Internacionales y la óptica Neorrealista facilita la comprensión de la posesión y uso de piezas de artillería, como expresión propia de la acumulación y proyección de poder Estatal en el Sistema Internacional, situación posible de observar en el marco de la confrontación bélica entre Ucrania y la Federación Rusa, desencadenada en febrero de 2022. La metodología de enfoque cualitativo y diseño en teoría fundamentada se emplea en este artículo junto con el recurso de análisis bibliométrico. Los hallazgos identificados entre el funcionamiento y los usos de la artillería permiten equipararla como mecanismo de proyección de poder; su relevancia militar (reflejada en la actualidad en el contexto bélico ruso-ucraniano) radica en la extensión del ataque posicional del poder de fuego, efectuado desde locaciones seguras con respecto a la ubicación de un frente de combate. En materia de relacionamiento entre actores del Sistema Internacional, el incremento del gasto militar en piezas de artillería agudiza la desconfianza entre los Estados en la medida en que aumenta la proyección de poder de sus adversarios.