Recollections of Marion Lyle Hurd : in a letter from her father /

"Marion's words" (song with music): p. [100]

不同二氧化碳浓度条件下红松和长白赤松土壤生化特性研究

以连续 5年在生长季以不同浓度CO2 (70 0和 5 0 0 μmol·mol-1)处理的长白赤松和红松幼苗为研究对象 ,进行了土壤微生物生物量C、纤维素分解月动态以及过氧化氢酶活性动态研究 .结果表明 ,在秋季 ,红松和长白赤松土壤微生物生物量C在不同浓度CO2 处理箱的大小顺序均为 :对照箱 >5 0 0 μmol·mol-1箱 >70 0 μmol·mol-1箱 ;红松和长白赤松土壤 5和 10cm层在不同浓度CO2 处理下 ,其纤维素分解强度的月动态均表现出一定的规律性 ,且各处理之间在每个月份中也表现出一定的规律性 ;在生长季 ,红松和长白赤松土壤纤维素分解强度在 5和 10cm层均表现为 5 0 0 μmol·mol-1CO2 处理下较 70 0 μmol·mol-1CO2 处理下高 ;红松和长白赤松土壤过氧化氢酶活性在不同浓度CO2 处理之间均表现出一定的规律性 ,且各处理的月动态变化也呈现出一定的规律性 .

施肥进步在粮食增产中的贡献及其地理分异

根据三个地点中长期田间试验联网研究发现 ,施肥在作物产量形成中的贡献受施肥制度和气候的热量因子所影响 ,在最佳施肥条件下 ,施肥在产量中的贡献率分别为海伦 (温带 ) 0 .31,沈阳 (暖温带 )0 .39和桃源 (亚热带 ) 0 .4 2 ,存在明显的地理分异现象 .由此可以得出 ,当其他技术条件不变时 ,施肥在产量中的贡献率最高可达 30 %～ 4 5 % ,随所在地区气候的热量条件而不同 .通过对施肥与气候热量之间的交互影响研究还发现 ,沈阳与桃源间的交互影响远大于海伦与沈阳之间 ,有机肥与气候热量之间的交互影响大于化肥与热量之间的交互影响

Arabinogalactan as a carrier for contrast agent in magnetic resonance imaging

Arabinogalactan-Gd-DTPA was synthesized by the reaction of diethylenetriaminepenta-acetic acid (DTPA) bisanhydride with polysaccharide in dry DMSO and characterized by FTIR, elemental analysis and ICP-AES. Its stability was investigated by competition with Ca2+, EDTA, DTPA. The t(1)-relaxivity is 8.06 mmol(-1) . L . s(-1) in D2O, 8.48 mmol(-1) . L . s(-1) in 0.725 mmol . L-1 BSA, respectively. t(1)-weighted MR imaging of rat kidney and liver showed a remarkable enhancement post injection of Arabinogalactan-Gd-DTPA. The results indicate that the arabinogalactan-Gd-DTPA is a potential contrast agent for MRI.

以阿拉伯半乳聚糖为载体的磁共振成像造影剂的研究

合成了阿拉伯半乳聚糖修饰的 DTPA钆配合物 ,用红外光谱、元素分析、 ICP-AES等手段进行了表征 ,用竞争性方法研究了其在水溶液中的稳定性 ,测试了其在水中及 BSA溶液中的弛豫性能 ,并进行了体内成像实验 .结果表明 ,其弛豫效率是目前临床所用造影剂 Gd-DTPA的 1 .5～ 2 .0倍 ,对肝脏和肾脏 MRI信号具有良好的增强效果 ,是比较好的潜在磁共振成像造影剂

Message from the President of the United States, transmitting a letter from the Marshall of the Northern District of the State of New York, respecting disturbances on the Canadian frontier (1838)

Message from the President of the United States transmitting a letter from the Marshal of the Northern District of the State of New York, respecting Disturbances on the Canadian Frontier.

Steamboat Caroline (1838)

Message from the President of the United States transmitting the information required by a resolution of the House of Representatives of the 21st ultimo, respecting the Capture and Destruction of the Steamboat Caroline, on the night of the 29th December last.

Steamboat Caroline (1839)

Message from the President of the United States transmitting in compliance with the resolution of the House of Respresentatives of the 28th ultimo, information in relation to the destruction of the steamboat Caroline.

Burning of the Caroline (1840)

Message from the President of the United States, transmitting correspondence in relation to the burning of the steamboat Caroline.

El Mole

En la 2ª época cada n. tiene título diferente y numeración correlativa: Borinot, Titot, Panerót, Guitarró, Lley, Siudadano, Papamosques, Papagáll, Papafigo, Esclafit, Gábula, Cresol, Máixquera, Trull, Chorlít, Colom, Verderòl, Tramús, Margalló, Mosca, Gafarró, Sambomba, Cañís, Teulaí, Carro, Rabe, Nap, Rellamp, Tró, Garrof, Piúlo, Rosiñól y Mòle

Maine historical memorials.

A fugitive slave case in Maine, 1837-1841 / [by Henry S. Burrage] -- James Russell Lowell's two visits to Portland in 1857 / [by Henry S. Burrage] -- James Phinney Baxter / [by Henry S. Burrage] -- Franklin Simmons, sculptor / [by Henry S. Burrage] -- The Maine Historical Society in Brunswick, 1822-1880 / by Kenneth C.M. Sills -- The Maine Historical Society at Portland / by Augustus F. Moulton.